f8b8412907
While these are rare from code that's been through the optimizer, it's not uncommon within the tcg backend. Signed-off-by: Richard Henderson <rth@twiddle.net>
2139 lines
60 KiB
C
2139 lines
60 KiB
C
/*
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* Tiny Code Generator for QEMU
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*
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* Copyright (c) 2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#define TCG_CT_CONST_S16 0x100
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#define TCG_CT_CONST_U16 0x200
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#define TCG_CT_CONST_S32 0x400
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#define TCG_CT_CONST_U32 0x800
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#define TCG_CT_CONST_ZERO 0x1000
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#define TCG_CT_CONST_MONE 0x2000
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static uint8_t *tb_ret_addr;
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#define FAST_PATH
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#if TARGET_LONG_BITS == 32
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#define LD_ADDR LWZU
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#define CMP_L 0
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#else
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#define LD_ADDR LDU
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#define CMP_L (1<<21)
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#endif
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#ifndef GUEST_BASE
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#define GUEST_BASE 0
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#endif
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#ifdef CONFIG_GETAUXVAL
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#include <sys/auxv.h>
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static bool have_isa_2_06;
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#define HAVE_ISA_2_06 have_isa_2_06
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#define HAVE_ISEL have_isa_2_06
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#else
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#define HAVE_ISA_2_06 0
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#define HAVE_ISEL 0
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#endif
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#ifdef CONFIG_USE_GUEST_BASE
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#define TCG_GUEST_BASE_REG 30
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#else
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#define TCG_GUEST_BASE_REG 0
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#endif
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#ifndef NDEBUG
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static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
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"r0",
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"r1",
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"r2",
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"r3",
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"r4",
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"r5",
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"r6",
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"r7",
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"r8",
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"r9",
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"r10",
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"r11",
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"r12",
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"r13",
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"r14",
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"r15",
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"r16",
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"r17",
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"r18",
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"r19",
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"r20",
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"r21",
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"r22",
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"r23",
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"r24",
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"r25",
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"r26",
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"r27",
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"r28",
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"r29",
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"r30",
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"r31"
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};
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#endif
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static const int tcg_target_reg_alloc_order[] = {
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TCG_REG_R14,
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TCG_REG_R15,
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TCG_REG_R16,
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TCG_REG_R17,
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TCG_REG_R18,
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TCG_REG_R19,
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TCG_REG_R20,
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TCG_REG_R21,
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TCG_REG_R22,
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TCG_REG_R23,
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TCG_REG_R28,
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TCG_REG_R29,
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TCG_REG_R30,
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TCG_REG_R31,
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#ifdef __APPLE__
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TCG_REG_R2,
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#endif
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TCG_REG_R3,
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TCG_REG_R4,
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TCG_REG_R5,
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TCG_REG_R6,
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TCG_REG_R7,
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TCG_REG_R8,
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TCG_REG_R9,
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TCG_REG_R10,
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#ifndef __APPLE__
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TCG_REG_R11,
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#endif
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TCG_REG_R12,
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TCG_REG_R24,
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TCG_REG_R25,
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TCG_REG_R26,
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TCG_REG_R27
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};
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static const int tcg_target_call_iarg_regs[] = {
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TCG_REG_R3,
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TCG_REG_R4,
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TCG_REG_R5,
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TCG_REG_R6,
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TCG_REG_R7,
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TCG_REG_R8,
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TCG_REG_R9,
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TCG_REG_R10
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};
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static const int tcg_target_call_oarg_regs[] = {
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TCG_REG_R3
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};
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static const int tcg_target_callee_save_regs[] = {
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#ifdef __APPLE__
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TCG_REG_R11,
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#endif
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TCG_REG_R14,
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TCG_REG_R15,
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TCG_REG_R16,
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TCG_REG_R17,
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TCG_REG_R18,
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TCG_REG_R19,
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TCG_REG_R20,
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TCG_REG_R21,
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TCG_REG_R22,
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TCG_REG_R23,
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TCG_REG_R24,
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TCG_REG_R25,
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TCG_REG_R26,
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TCG_REG_R27, /* currently used for the global env */
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TCG_REG_R28,
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TCG_REG_R29,
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TCG_REG_R30,
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TCG_REG_R31
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};
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static uint32_t reloc_pc24_val(void *pc, tcg_target_long target)
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{
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tcg_target_long disp;
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disp = target - (tcg_target_long)pc;
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if ((disp << 38) >> 38 != disp) {
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tcg_abort();
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}
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return disp & 0x3fffffc;
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}
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static void reloc_pc24(void *pc, tcg_target_long target)
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{
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*(uint32_t *)pc = (*(uint32_t *)pc & ~0x3fffffc)
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| reloc_pc24_val(pc, target);
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}
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static uint16_t reloc_pc14_val(void *pc, tcg_target_long target)
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{
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tcg_target_long disp;
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disp = target - (tcg_target_long)pc;
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if (disp != (int16_t) disp) {
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tcg_abort();
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}
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return disp & 0xfffc;
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}
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static void reloc_pc14(void *pc, tcg_target_long target)
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{
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*(uint32_t *)pc = (*(uint32_t *)pc & ~0xfffc) | reloc_pc14_val(pc, target);
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}
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static void patch_reloc(uint8_t *code_ptr, int type,
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intptr_t value, intptr_t addend)
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{
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value += addend;
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switch (type) {
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case R_PPC_REL14:
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reloc_pc14(code_ptr, value);
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break;
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case R_PPC_REL24:
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reloc_pc24(code_ptr, value);
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break;
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default:
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tcg_abort();
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}
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}
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/* parse target specific constraints */
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static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
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{
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const char *ct_str;
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ct_str = *pct_str;
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switch (ct_str[0]) {
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case 'A': case 'B': case 'C': case 'D':
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ct->ct |= TCG_CT_REG;
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tcg_regset_set_reg(ct->u.regs, 3 + ct_str[0] - 'A');
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break;
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case 'r':
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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break;
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case 'L': /* qemu_ld constraint */
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
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#ifdef CONFIG_SOFTMMU
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
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#endif
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break;
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case 'S': /* qemu_st constraint */
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
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#ifdef CONFIG_SOFTMMU
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
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#endif
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break;
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case 'I':
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ct->ct |= TCG_CT_CONST_S16;
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break;
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case 'J':
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ct->ct |= TCG_CT_CONST_U16;
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break;
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case 'M':
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ct->ct |= TCG_CT_CONST_MONE;
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break;
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case 'T':
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ct->ct |= TCG_CT_CONST_S32;
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break;
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case 'U':
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ct->ct |= TCG_CT_CONST_U32;
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break;
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case 'Z':
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ct->ct |= TCG_CT_CONST_ZERO;
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break;
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default:
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return -1;
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}
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ct_str++;
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*pct_str = ct_str;
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return 0;
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}
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/* test if a constant matches the constraint */
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static int tcg_target_const_match(tcg_target_long val,
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const TCGArgConstraint *arg_ct)
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{
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int ct = arg_ct->ct;
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if (ct & TCG_CT_CONST) {
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return 1;
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} else if ((ct & TCG_CT_CONST_S16) && val == (int16_t)val) {
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return 1;
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} else if ((ct & TCG_CT_CONST_U16) && val == (uint16_t)val) {
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return 1;
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} else if ((ct & TCG_CT_CONST_S32) && val == (int32_t)val) {
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return 1;
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} else if ((ct & TCG_CT_CONST_U32) && val == (uint32_t)val) {
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return 1;
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} else if ((ct & TCG_CT_CONST_ZERO) && val == 0) {
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return 1;
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} else if ((ct & TCG_CT_CONST_MONE) && val == -1) {
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return 1;
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}
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return 0;
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}
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#define OPCD(opc) ((opc)<<26)
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#define XO19(opc) (OPCD(19)|((opc)<<1))
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#define MD30(opc) (OPCD(30)|((opc)<<2))
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#define MDS30(opc) (OPCD(30)|((opc)<<1))
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#define XO31(opc) (OPCD(31)|((opc)<<1))
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#define XO58(opc) (OPCD(58)|(opc))
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#define XO62(opc) (OPCD(62)|(opc))
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#define B OPCD( 18)
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#define BC OPCD( 16)
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#define LBZ OPCD( 34)
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#define LHZ OPCD( 40)
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#define LHA OPCD( 42)
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#define LWZ OPCD( 32)
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#define STB OPCD( 38)
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#define STH OPCD( 44)
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#define STW OPCD( 36)
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#define STD XO62( 0)
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#define STDU XO62( 1)
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#define STDX XO31(149)
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#define LD XO58( 0)
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#define LDX XO31( 21)
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#define LDU XO58( 1)
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#define LWA XO58( 2)
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#define LWAX XO31(341)
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#define ADDIC OPCD( 12)
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#define ADDI OPCD( 14)
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#define ADDIS OPCD( 15)
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#define ORI OPCD( 24)
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#define ORIS OPCD( 25)
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#define XORI OPCD( 26)
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#define XORIS OPCD( 27)
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#define ANDI OPCD( 28)
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#define ANDIS OPCD( 29)
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#define MULLI OPCD( 7)
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#define CMPLI OPCD( 10)
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#define CMPI OPCD( 11)
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#define SUBFIC OPCD( 8)
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#define LWZU OPCD( 33)
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#define STWU OPCD( 37)
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#define RLWIMI OPCD( 20)
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#define RLWINM OPCD( 21)
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#define RLWNM OPCD( 23)
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#define RLDICL MD30( 0)
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#define RLDICR MD30( 1)
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#define RLDIMI MD30( 3)
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#define RLDCL MDS30( 8)
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#define BCLR XO19( 16)
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#define BCCTR XO19(528)
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#define CRAND XO19(257)
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#define CRANDC XO19(129)
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#define CRNAND XO19(225)
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#define CROR XO19(449)
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#define CRNOR XO19( 33)
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#define EXTSB XO31(954)
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#define EXTSH XO31(922)
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#define EXTSW XO31(986)
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#define ADD XO31(266)
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#define ADDE XO31(138)
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#define ADDME XO31(234)
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#define ADDZE XO31(202)
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#define ADDC XO31( 10)
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#define AND XO31( 28)
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#define SUBF XO31( 40)
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#define SUBFC XO31( 8)
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#define SUBFE XO31(136)
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#define SUBFME XO31(232)
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#define SUBFZE XO31(200)
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#define OR XO31(444)
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#define XOR XO31(316)
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#define MULLW XO31(235)
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#define MULHWU XO31( 11)
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#define DIVW XO31(491)
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#define DIVWU XO31(459)
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#define CMP XO31( 0)
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#define CMPL XO31( 32)
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#define LHBRX XO31(790)
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#define LWBRX XO31(534)
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#define LDBRX XO31(532)
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#define STHBRX XO31(918)
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#define STWBRX XO31(662)
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#define STDBRX XO31(660)
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#define MFSPR XO31(339)
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#define MTSPR XO31(467)
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#define SRAWI XO31(824)
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#define NEG XO31(104)
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#define MFCR XO31( 19)
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#define MFOCRF (MFCR | (1u << 20))
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#define NOR XO31(124)
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#define CNTLZW XO31( 26)
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#define CNTLZD XO31( 58)
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#define ANDC XO31( 60)
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#define ORC XO31(412)
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#define EQV XO31(284)
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#define NAND XO31(476)
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#define ISEL XO31( 15)
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#define MULLD XO31(233)
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#define MULHD XO31( 73)
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#define MULHDU XO31( 9)
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#define DIVD XO31(489)
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#define DIVDU XO31(457)
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#define LBZX XO31( 87)
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#define LHZX XO31(279)
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#define LHAX XO31(343)
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#define LWZX XO31( 23)
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#define STBX XO31(215)
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#define STHX XO31(407)
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#define STWX XO31(151)
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#define SPR(a, b) ((((a)<<5)|(b))<<11)
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#define LR SPR(8, 0)
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#define CTR SPR(9, 0)
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#define SLW XO31( 24)
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#define SRW XO31(536)
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#define SRAW XO31(792)
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#define SLD XO31( 27)
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#define SRD XO31(539)
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#define SRAD XO31(794)
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#define SRADI XO31(413<<1)
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#define TW XO31( 4)
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#define TRAP (TW | TO(31))
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#define RT(r) ((r)<<21)
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#define RS(r) ((r)<<21)
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#define RA(r) ((r)<<16)
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#define RB(r) ((r)<<11)
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#define TO(t) ((t)<<21)
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#define SH(s) ((s)<<11)
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#define MB(b) ((b)<<6)
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#define ME(e) ((e)<<1)
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#define BO(o) ((o)<<21)
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#define MB64(b) ((b)<<5)
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#define FXM(b) (1 << (19 - (b)))
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#define LK 1
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#define TAB(t, a, b) (RT(t) | RA(a) | RB(b))
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#define SAB(s, a, b) (RS(s) | RA(a) | RB(b))
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#define TAI(s, a, i) (RT(s) | RA(a) | ((i) & 0xffff))
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#define SAI(s, a, i) (RS(s) | RA(a) | ((i) & 0xffff))
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#define BF(n) ((n)<<23)
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#define BI(n, c) (((c)+((n)*4))<<16)
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#define BT(n, c) (((c)+((n)*4))<<21)
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#define BA(n, c) (((c)+((n)*4))<<16)
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#define BB(n, c) (((c)+((n)*4))<<11)
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#define BC_(n, c) (((c)+((n)*4))<<6)
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#define BO_COND_TRUE BO(12)
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#define BO_COND_FALSE BO( 4)
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#define BO_ALWAYS BO(20)
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enum {
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CR_LT,
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CR_GT,
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CR_EQ,
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CR_SO
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};
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|
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static const uint32_t tcg_to_bc[] = {
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[TCG_COND_EQ] = BC | BI(7, CR_EQ) | BO_COND_TRUE,
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[TCG_COND_NE] = BC | BI(7, CR_EQ) | BO_COND_FALSE,
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[TCG_COND_LT] = BC | BI(7, CR_LT) | BO_COND_TRUE,
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[TCG_COND_GE] = BC | BI(7, CR_LT) | BO_COND_FALSE,
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[TCG_COND_LE] = BC | BI(7, CR_GT) | BO_COND_FALSE,
|
|
[TCG_COND_GT] = BC | BI(7, CR_GT) | BO_COND_TRUE,
|
|
[TCG_COND_LTU] = BC | BI(7, CR_LT) | BO_COND_TRUE,
|
|
[TCG_COND_GEU] = BC | BI(7, CR_LT) | BO_COND_FALSE,
|
|
[TCG_COND_LEU] = BC | BI(7, CR_GT) | BO_COND_FALSE,
|
|
[TCG_COND_GTU] = BC | BI(7, CR_GT) | BO_COND_TRUE,
|
|
};
|
|
|
|
/* The low bit here is set if the RA and RB fields must be inverted. */
|
|
static const uint32_t tcg_to_isel[] = {
|
|
[TCG_COND_EQ] = ISEL | BC_(7, CR_EQ),
|
|
[TCG_COND_NE] = ISEL | BC_(7, CR_EQ) | 1,
|
|
[TCG_COND_LT] = ISEL | BC_(7, CR_LT),
|
|
[TCG_COND_GE] = ISEL | BC_(7, CR_LT) | 1,
|
|
[TCG_COND_LE] = ISEL | BC_(7, CR_GT) | 1,
|
|
[TCG_COND_GT] = ISEL | BC_(7, CR_GT),
|
|
[TCG_COND_LTU] = ISEL | BC_(7, CR_LT),
|
|
[TCG_COND_GEU] = ISEL | BC_(7, CR_LT) | 1,
|
|
[TCG_COND_LEU] = ISEL | BC_(7, CR_GT) | 1,
|
|
[TCG_COND_GTU] = ISEL | BC_(7, CR_GT),
|
|
};
|
|
|
|
static inline void tcg_out_mov(TCGContext *s, TCGType type,
|
|
TCGReg ret, TCGReg arg)
|
|
{
|
|
if (ret != arg) {
|
|
tcg_out32(s, OR | SAB(arg, ret, arg));
|
|
}
|
|
}
|
|
|
|
static inline void tcg_out_rld(TCGContext *s, int op, TCGReg ra, TCGReg rs,
|
|
int sh, int mb)
|
|
{
|
|
sh = SH(sh & 0x1f) | (((sh >> 5) & 1) << 1);
|
|
mb = MB64((mb >> 5) | ((mb << 1) & 0x3f));
|
|
tcg_out32(s, op | RA(ra) | RS(rs) | sh | mb);
|
|
}
|
|
|
|
static inline void tcg_out_rlw(TCGContext *s, int op, TCGReg ra, TCGReg rs,
|
|
int sh, int mb, int me)
|
|
{
|
|
tcg_out32(s, op | RA(ra) | RS(rs) | SH(sh) | MB(mb) | ME(me));
|
|
}
|
|
|
|
static inline void tcg_out_ext32u(TCGContext *s, TCGReg dst, TCGReg src)
|
|
{
|
|
tcg_out_rld(s, RLDICL, dst, src, 0, 32);
|
|
}
|
|
|
|
static inline void tcg_out_shli64(TCGContext *s, TCGReg dst, TCGReg src, int c)
|
|
{
|
|
tcg_out_rld(s, RLDICR, dst, src, c, 63 - c);
|
|
}
|
|
|
|
static inline void tcg_out_shri64(TCGContext *s, TCGReg dst, TCGReg src, int c)
|
|
{
|
|
tcg_out_rld(s, RLDICL, dst, src, 64 - c, c);
|
|
}
|
|
|
|
static void tcg_out_movi32(TCGContext *s, TCGReg ret, int32_t arg)
|
|
{
|
|
if (arg == (int16_t) arg) {
|
|
tcg_out32(s, ADDI | TAI(ret, 0, arg));
|
|
} else {
|
|
tcg_out32(s, ADDIS | TAI(ret, 0, arg >> 16));
|
|
if (arg & 0xffff) {
|
|
tcg_out32(s, ORI | SAI(ret, ret, arg));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg ret,
|
|
tcg_target_long arg)
|
|
{
|
|
if (type == TCG_TYPE_I32 || arg == (int32_t)arg) {
|
|
tcg_out_movi32(s, ret, arg);
|
|
} else if (arg == (uint32_t)arg && !(arg & 0x8000)) {
|
|
tcg_out32(s, ADDI | TAI(ret, 0, arg));
|
|
tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16));
|
|
} else {
|
|
int32_t high = arg >> 32;
|
|
tcg_out_movi32(s, ret, high);
|
|
if (high) {
|
|
tcg_out_shli64(s, ret, ret, 32);
|
|
}
|
|
if (arg & 0xffff0000) {
|
|
tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16));
|
|
}
|
|
if (arg & 0xffff) {
|
|
tcg_out32(s, ORI | SAI(ret, ret, arg));
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool mask_operand(uint32_t c, int *mb, int *me)
|
|
{
|
|
uint32_t lsb, test;
|
|
|
|
/* Accept a bit pattern like:
|
|
0....01....1
|
|
1....10....0
|
|
0..01..10..0
|
|
Keep track of the transitions. */
|
|
if (c == 0 || c == -1) {
|
|
return false;
|
|
}
|
|
test = c;
|
|
lsb = test & -test;
|
|
test += lsb;
|
|
if (test & (test - 1)) {
|
|
return false;
|
|
}
|
|
|
|
*me = clz32(lsb);
|
|
*mb = test ? clz32(test & -test) + 1 : 0;
|
|
return true;
|
|
}
|
|
|
|
static bool mask64_operand(uint64_t c, int *mb, int *me)
|
|
{
|
|
uint64_t lsb;
|
|
|
|
if (c == 0) {
|
|
return false;
|
|
}
|
|
|
|
lsb = c & -c;
|
|
/* Accept 1..10..0. */
|
|
if (c == -lsb) {
|
|
*mb = 0;
|
|
*me = clz64(lsb);
|
|
return true;
|
|
}
|
|
/* Accept 0..01..1. */
|
|
if (lsb == 1 && (c & (c + 1)) == 0) {
|
|
*mb = clz64(c + 1) + 1;
|
|
*me = 63;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void tcg_out_andi32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
|
|
{
|
|
int mb, me;
|
|
|
|
if ((c & 0xffff) == c) {
|
|
tcg_out32(s, ANDI | SAI(src, dst, c));
|
|
return;
|
|
} else if ((c & 0xffff0000) == c) {
|
|
tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
|
|
return;
|
|
} else if (mask_operand(c, &mb, &me)) {
|
|
tcg_out_rlw(s, RLWINM, dst, src, 0, mb, me);
|
|
} else {
|
|
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R0, c);
|
|
tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0));
|
|
}
|
|
}
|
|
|
|
static void tcg_out_andi64(TCGContext *s, TCGReg dst, TCGReg src, uint64_t c)
|
|
{
|
|
int mb, me;
|
|
|
|
if ((c & 0xffff) == c) {
|
|
tcg_out32(s, ANDI | SAI(src, dst, c));
|
|
return;
|
|
} else if ((c & 0xffff0000) == c) {
|
|
tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
|
|
return;
|
|
} else if (mask64_operand(c, &mb, &me)) {
|
|
if (mb == 0) {
|
|
tcg_out_rld(s, RLDICR, dst, src, 0, me);
|
|
} else {
|
|
tcg_out_rld(s, RLDICL, dst, src, 0, mb);
|
|
}
|
|
} else {
|
|
tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, c);
|
|
tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0));
|
|
}
|
|
}
|
|
|
|
static void tcg_out_zori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c,
|
|
int op_lo, int op_hi)
|
|
{
|
|
if (c >> 16) {
|
|
tcg_out32(s, op_hi | SAI(src, dst, c >> 16));
|
|
src = dst;
|
|
}
|
|
if (c & 0xffff) {
|
|
tcg_out32(s, op_lo | SAI(src, dst, c));
|
|
src = dst;
|
|
}
|
|
}
|
|
|
|
static void tcg_out_ori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
|
|
{
|
|
tcg_out_zori32(s, dst, src, c, ORI, ORIS);
|
|
}
|
|
|
|
static void tcg_out_xori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
|
|
{
|
|
tcg_out_zori32(s, dst, src, c, XORI, XORIS);
|
|
}
|
|
|
|
static void tcg_out_b(TCGContext *s, int mask, tcg_target_long target)
|
|
{
|
|
tcg_target_long disp;
|
|
|
|
disp = target - (tcg_target_long)s->code_ptr;
|
|
if ((disp << 38) >> 38 == disp) {
|
|
tcg_out32(s, B | (disp & 0x3fffffc) | mask);
|
|
} else {
|
|
tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, (tcg_target_long)target);
|
|
tcg_out32(s, MTSPR | RS(TCG_REG_R0) | CTR);
|
|
tcg_out32(s, BCCTR | BO_ALWAYS | mask);
|
|
}
|
|
}
|
|
|
|
static void tcg_out_call(TCGContext *s, tcg_target_long arg, int const_arg)
|
|
{
|
|
#ifdef __APPLE__
|
|
if (const_arg) {
|
|
tcg_out_b(s, LK, arg);
|
|
} else {
|
|
tcg_out32(s, MTSPR | RS(arg) | LR);
|
|
tcg_out32(s, BCLR | BO_ALWAYS | LK);
|
|
}
|
|
#else
|
|
int reg = arg;
|
|
|
|
if (const_arg) {
|
|
reg = TCG_REG_R2;
|
|
tcg_out_movi(s, TCG_TYPE_I64, reg, arg);
|
|
}
|
|
|
|
tcg_out32(s, LD | TAI(TCG_REG_R0, reg, 0));
|
|
tcg_out32(s, MTSPR | RA(TCG_REG_R0) | CTR);
|
|
tcg_out32(s, LD | TAI(TCG_REG_R11, reg, 16));
|
|
tcg_out32(s, LD | TAI(TCG_REG_R2, reg, 8));
|
|
tcg_out32(s, BCCTR | BO_ALWAYS | LK);
|
|
#endif
|
|
}
|
|
|
|
static void tcg_out_ldst(TCGContext *s, TCGReg ret, TCGReg addr,
|
|
int offset, int op1, int op2)
|
|
{
|
|
if (offset == (int16_t) offset) {
|
|
tcg_out32(s, op1 | TAI(ret, addr, offset));
|
|
} else {
|
|
tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, offset);
|
|
tcg_out32(s, op2 | TAB(ret, addr, TCG_REG_R0));
|
|
}
|
|
}
|
|
|
|
static void tcg_out_ldsta(TCGContext *s, TCGReg ret, TCGReg addr,
|
|
int offset, int op1, int op2)
|
|
{
|
|
if (offset == (int16_t)(offset & ~3)) {
|
|
tcg_out32(s, op1 | TAI(ret, addr, offset));
|
|
} else {
|
|
tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, offset);
|
|
tcg_out32(s, op2 | TAB(ret, addr, TCG_REG_R0));
|
|
}
|
|
}
|
|
|
|
#if defined(CONFIG_SOFTMMU)
|
|
/* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr,
|
|
int mmu_idx) */
|
|
static const void * const qemu_ld_helpers[4] = {
|
|
helper_ldb_mmu,
|
|
helper_ldw_mmu,
|
|
helper_ldl_mmu,
|
|
helper_ldq_mmu,
|
|
};
|
|
|
|
/* helper signature: helper_st_mmu(CPUState *env, target_ulong addr,
|
|
uintxx_t val, int mmu_idx) */
|
|
static const void * const qemu_st_helpers[4] = {
|
|
helper_stb_mmu,
|
|
helper_stw_mmu,
|
|
helper_stl_mmu,
|
|
helper_stq_mmu,
|
|
};
|
|
|
|
static void tcg_out_tlb_read(TCGContext *s, TCGReg r0, TCGReg r1, TCGReg r2,
|
|
TCGReg addr_reg, int s_bits, int offset)
|
|
{
|
|
#if TARGET_LONG_BITS == 32
|
|
tcg_out_ext32u(s, addr_reg, addr_reg);
|
|
|
|
tcg_out_rlw(s, RLWINM, r0, addr_reg,
|
|
32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS),
|
|
32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS),
|
|
31 - CPU_TLB_ENTRY_BITS);
|
|
tcg_out32(s, ADD | TAB(r0, r0, TCG_AREG0));
|
|
tcg_out32(s, LWZU | TAI(r1, r0, offset));
|
|
tcg_out_rlw(s, RLWINM, r2, addr_reg, 0,
|
|
(32 - s_bits) & 31, 31 - TARGET_PAGE_BITS);
|
|
#else
|
|
tcg_out_rld(s, RLDICL, r0, addr_reg,
|
|
64 - TARGET_PAGE_BITS,
|
|
64 - CPU_TLB_BITS);
|
|
tcg_out_shli64(s, r0, r0, CPU_TLB_ENTRY_BITS);
|
|
|
|
tcg_out32(s, ADD | TAB(r0, r0, TCG_AREG0));
|
|
tcg_out32(s, LD_ADDR | TAI(r1, r0, offset));
|
|
|
|
if (!s_bits) {
|
|
tcg_out_rld(s, RLDICR, r2, addr_reg, 0, 63 - TARGET_PAGE_BITS);
|
|
} else {
|
|
tcg_out_rld(s, RLDICL, r2, addr_reg,
|
|
64 - TARGET_PAGE_BITS,
|
|
TARGET_PAGE_BITS - s_bits);
|
|
tcg_out_rld(s, RLDICL, r2, r2, TARGET_PAGE_BITS, 0);
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
static const uint32_t qemu_ldx_opc[8] = {
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
LBZX, LHZX, LWZX, LDX,
|
|
0, LHAX, LWAX, LDX
|
|
#else
|
|
LBZX, LHBRX, LWBRX, LDBRX,
|
|
0, 0, 0, LDBRX,
|
|
#endif
|
|
};
|
|
|
|
static const uint32_t qemu_stx_opc[4] = {
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
STBX, STHX, STWX, STDX
|
|
#else
|
|
STBX, STHBRX, STWBRX, STDBRX,
|
|
#endif
|
|
};
|
|
|
|
static const uint32_t qemu_exts_opc[4] = {
|
|
EXTSB, EXTSH, EXTSW, 0
|
|
};
|
|
|
|
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc)
|
|
{
|
|
TCGReg addr_reg, data_reg, r0, r1, rbase;
|
|
uint32_t insn, s_bits;
|
|
#ifdef CONFIG_SOFTMMU
|
|
TCGReg r2, ir;
|
|
int mem_index;
|
|
void *label1_ptr, *label2_ptr;
|
|
#endif
|
|
|
|
data_reg = *args++;
|
|
addr_reg = *args++;
|
|
s_bits = opc & 3;
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
mem_index = *args;
|
|
|
|
r0 = TCG_REG_R3;
|
|
r1 = TCG_REG_R4;
|
|
r2 = TCG_REG_R0;
|
|
rbase = 0;
|
|
|
|
tcg_out_tlb_read(s, r0, r1, r2, addr_reg, s_bits,
|
|
offsetof(CPUArchState, tlb_table[mem_index][0].addr_read));
|
|
|
|
tcg_out32(s, CMP | BF(7) | RA(r2) | RB(r1) | CMP_L);
|
|
|
|
label1_ptr = s->code_ptr;
|
|
#ifdef FAST_PATH
|
|
tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_TRUE);
|
|
#endif
|
|
|
|
/* slow path */
|
|
ir = TCG_REG_R3;
|
|
tcg_out_mov(s, TCG_TYPE_I64, ir++, TCG_AREG0);
|
|
tcg_out_mov(s, TCG_TYPE_I64, ir++, addr_reg);
|
|
tcg_out_movi(s, TCG_TYPE_I64, ir++, mem_index);
|
|
|
|
tcg_out_call(s, (tcg_target_long) qemu_ld_helpers[s_bits], 1);
|
|
|
|
if (opc & 4) {
|
|
insn = qemu_exts_opc[s_bits];
|
|
tcg_out32(s, insn | RA(data_reg) | RS(TCG_REG_R3));
|
|
} else if (data_reg != TCG_REG_R3) {
|
|
tcg_out_mov(s, TCG_TYPE_I64, data_reg, TCG_REG_R3);
|
|
}
|
|
label2_ptr = s->code_ptr;
|
|
tcg_out32(s, B);
|
|
|
|
/* label1: fast path */
|
|
#ifdef FAST_PATH
|
|
reloc_pc14(label1_ptr, (tcg_target_long)s->code_ptr);
|
|
#endif
|
|
|
|
/* r0 now contains &env->tlb_table[mem_index][index].addr_read */
|
|
tcg_out32(s, LD | TAI(r0, r0,
|
|
offsetof(CPUTLBEntry, addend)
|
|
- offsetof(CPUTLBEntry, addr_read)));
|
|
/* r0 = env->tlb_table[mem_index][index].addend */
|
|
tcg_out32(s, ADD | TAB(r0, r0, addr_reg));
|
|
/* r0 = env->tlb_table[mem_index][index].addend + addr */
|
|
|
|
#else /* !CONFIG_SOFTMMU */
|
|
#if TARGET_LONG_BITS == 32
|
|
tcg_out_ext32u(s, addr_reg, addr_reg);
|
|
#endif
|
|
r0 = addr_reg;
|
|
r1 = TCG_REG_R3;
|
|
rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
|
|
#endif
|
|
|
|
insn = qemu_ldx_opc[opc];
|
|
if (!HAVE_ISA_2_06 && insn == LDBRX) {
|
|
tcg_out32(s, ADDI | TAI(r1, r0, 4));
|
|
tcg_out32(s, LWBRX | TAB(data_reg, rbase, r0));
|
|
tcg_out32(s, LWBRX | TAB( r1, rbase, r1));
|
|
tcg_out_rld(s, RLDIMI, data_reg, r1, 32, 0);
|
|
} else if (insn) {
|
|
tcg_out32(s, insn | TAB(data_reg, rbase, r0));
|
|
} else {
|
|
insn = qemu_ldx_opc[s_bits];
|
|
tcg_out32(s, insn | TAB(data_reg, rbase, r0));
|
|
insn = qemu_exts_opc[s_bits];
|
|
tcg_out32(s, insn | RA(data_reg) | RS(data_reg));
|
|
}
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
reloc_pc24(label2_ptr, (tcg_target_long)s->code_ptr);
|
|
#endif
|
|
}
|
|
|
|
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc)
|
|
{
|
|
TCGReg addr_reg, r0, r1, rbase, data_reg;
|
|
uint32_t insn;
|
|
#ifdef CONFIG_SOFTMMU
|
|
TCGReg r2, ir;
|
|
int mem_index;
|
|
void *label1_ptr, *label2_ptr;
|
|
#endif
|
|
|
|
data_reg = *args++;
|
|
addr_reg = *args++;
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
mem_index = *args;
|
|
|
|
r0 = TCG_REG_R3;
|
|
r1 = TCG_REG_R4;
|
|
r2 = TCG_REG_R0;
|
|
rbase = 0;
|
|
|
|
tcg_out_tlb_read(s, r0, r1, r2, addr_reg, opc,
|
|
offsetof(CPUArchState, tlb_table[mem_index][0].addr_write));
|
|
|
|
tcg_out32(s, CMP | BF(7) | RA(r2) | RB(r1) | CMP_L);
|
|
|
|
label1_ptr = s->code_ptr;
|
|
#ifdef FAST_PATH
|
|
tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_TRUE);
|
|
#endif
|
|
|
|
/* slow path */
|
|
ir = TCG_REG_R3;
|
|
tcg_out_mov(s, TCG_TYPE_I64, ir++, TCG_AREG0);
|
|
tcg_out_mov(s, TCG_TYPE_I64, ir++, addr_reg);
|
|
tcg_out_rld(s, RLDICL, ir++, data_reg, 0, 64 - (1 << (3 + opc)));
|
|
tcg_out_movi(s, TCG_TYPE_I64, ir++, mem_index);
|
|
|
|
tcg_out_call(s, (tcg_target_long)qemu_st_helpers[opc], 1);
|
|
|
|
label2_ptr = s->code_ptr;
|
|
tcg_out32(s, B);
|
|
|
|
/* label1: fast path */
|
|
#ifdef FAST_PATH
|
|
reloc_pc14(label1_ptr, (tcg_target_long)s->code_ptr);
|
|
#endif
|
|
|
|
tcg_out32(s, LD | TAI(r0, r0,
|
|
offsetof(CPUTLBEntry, addend)
|
|
- offsetof(CPUTLBEntry, addr_write)));
|
|
/* r0 = env->tlb_table[mem_index][index].addend */
|
|
tcg_out32(s, ADD | TAB(r0, r0, addr_reg));
|
|
/* r0 = env->tlb_table[mem_index][index].addend + addr */
|
|
|
|
#else /* !CONFIG_SOFTMMU */
|
|
#if TARGET_LONG_BITS == 32
|
|
tcg_out_ext32u(s, addr_reg, addr_reg);
|
|
#endif
|
|
r1 = TCG_REG_R3;
|
|
r0 = addr_reg;
|
|
rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
|
|
#endif
|
|
|
|
insn = qemu_stx_opc[opc];
|
|
if (!HAVE_ISA_2_06 && insn == STDBRX) {
|
|
tcg_out32(s, STWBRX | SAB(data_reg, rbase, r0));
|
|
tcg_out32(s, ADDI | TAI(r1, r0, 4));
|
|
tcg_out_shri64(s, TCG_REG_R0, data_reg, 32);
|
|
tcg_out32(s, STWBRX | SAB(TCG_REG_R0, rbase, r1));
|
|
} else {
|
|
tcg_out32(s, insn | SAB(data_reg, rbase, r0));
|
|
}
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
reloc_pc24(label2_ptr, (tcg_target_long)s->code_ptr);
|
|
#endif
|
|
}
|
|
|
|
static void tcg_target_qemu_prologue(TCGContext *s)
|
|
{
|
|
int i, frame_size;
|
|
|
|
frame_size = 0
|
|
+ 8 /* back chain */
|
|
+ 8 /* CR */
|
|
+ 8 /* LR */
|
|
+ 8 /* compiler doubleword */
|
|
+ 8 /* link editor doubleword */
|
|
+ 8 /* TOC save area */
|
|
+ TCG_STATIC_CALL_ARGS_SIZE
|
|
+ ARRAY_SIZE(tcg_target_callee_save_regs) * 8
|
|
+ CPU_TEMP_BUF_NLONGS * sizeof(long)
|
|
;
|
|
frame_size = (frame_size + 15) & ~15;
|
|
|
|
tcg_set_frame(s, TCG_REG_CALL_STACK, frame_size
|
|
- CPU_TEMP_BUF_NLONGS * sizeof(long),
|
|
CPU_TEMP_BUF_NLONGS * sizeof(long));
|
|
|
|
#ifndef __APPLE__
|
|
/* First emit adhoc function descriptor */
|
|
tcg_out64(s, (uint64_t)s->code_ptr + 24); /* entry point */
|
|
s->code_ptr += 16; /* skip TOC and environment pointer */
|
|
#endif
|
|
|
|
/* Prologue */
|
|
tcg_out32(s, MFSPR | RT(TCG_REG_R0) | LR);
|
|
tcg_out32(s, STDU | SAI(TCG_REG_R1, TCG_REG_R1, -frame_size));
|
|
for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) {
|
|
tcg_out32(s, STD | SAI(tcg_target_callee_save_regs[i], 1,
|
|
i * 8 + 48 + TCG_STATIC_CALL_ARGS_SIZE));
|
|
}
|
|
tcg_out32(s, STD | SAI(TCG_REG_R0, TCG_REG_R1, frame_size + 16));
|
|
|
|
#ifdef CONFIG_USE_GUEST_BASE
|
|
if (GUEST_BASE) {
|
|
tcg_out_movi(s, TCG_TYPE_I64, TCG_GUEST_BASE_REG, GUEST_BASE);
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
|
|
}
|
|
#endif
|
|
|
|
tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]);
|
|
tcg_out32(s, MTSPR | RS(tcg_target_call_iarg_regs[1]) | CTR);
|
|
tcg_out32(s, BCCTR | BO_ALWAYS);
|
|
|
|
/* Epilogue */
|
|
tb_ret_addr = s->code_ptr;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) {
|
|
tcg_out32(s, LD | TAI(tcg_target_callee_save_regs[i], TCG_REG_R1,
|
|
i * 8 + 48 + TCG_STATIC_CALL_ARGS_SIZE));
|
|
}
|
|
tcg_out32(s, LD | TAI(TCG_REG_R0, TCG_REG_R1, frame_size + 16));
|
|
tcg_out32(s, MTSPR | RS(TCG_REG_R0) | LR);
|
|
tcg_out32(s, ADDI | TAI(TCG_REG_R1, TCG_REG_R1, frame_size));
|
|
tcg_out32(s, BCLR | BO_ALWAYS);
|
|
}
|
|
|
|
static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg1,
|
|
intptr_t arg2)
|
|
{
|
|
if (type == TCG_TYPE_I32) {
|
|
tcg_out_ldst(s, ret, arg1, arg2, LWZ, LWZX);
|
|
} else {
|
|
tcg_out_ldsta(s, ret, arg1, arg2, LD, LDX);
|
|
}
|
|
}
|
|
|
|
static void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, TCGReg arg1,
|
|
intptr_t arg2)
|
|
{
|
|
if (type == TCG_TYPE_I32) {
|
|
tcg_out_ldst(s, arg, arg1, arg2, STW, STWX);
|
|
} else {
|
|
tcg_out_ldsta(s, arg, arg1, arg2, STD, STDX);
|
|
}
|
|
}
|
|
|
|
static void tcg_out_cmp(TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
|
|
int const_arg2, int cr, TCGType type)
|
|
{
|
|
int imm;
|
|
uint32_t op;
|
|
|
|
/* Simplify the comparisons below wrt CMPI. */
|
|
if (type == TCG_TYPE_I32) {
|
|
arg2 = (int32_t)arg2;
|
|
}
|
|
|
|
switch (cond) {
|
|
case TCG_COND_EQ:
|
|
case TCG_COND_NE:
|
|
if (const_arg2) {
|
|
if ((int16_t) arg2 == arg2) {
|
|
op = CMPI;
|
|
imm = 1;
|
|
break;
|
|
} else if ((uint16_t) arg2 == arg2) {
|
|
op = CMPLI;
|
|
imm = 1;
|
|
break;
|
|
}
|
|
}
|
|
op = CMPL;
|
|
imm = 0;
|
|
break;
|
|
|
|
case TCG_COND_LT:
|
|
case TCG_COND_GE:
|
|
case TCG_COND_LE:
|
|
case TCG_COND_GT:
|
|
if (const_arg2) {
|
|
if ((int16_t) arg2 == arg2) {
|
|
op = CMPI;
|
|
imm = 1;
|
|
break;
|
|
}
|
|
}
|
|
op = CMP;
|
|
imm = 0;
|
|
break;
|
|
|
|
case TCG_COND_LTU:
|
|
case TCG_COND_GEU:
|
|
case TCG_COND_LEU:
|
|
case TCG_COND_GTU:
|
|
if (const_arg2) {
|
|
if ((uint16_t) arg2 == arg2) {
|
|
op = CMPLI;
|
|
imm = 1;
|
|
break;
|
|
}
|
|
}
|
|
op = CMPL;
|
|
imm = 0;
|
|
break;
|
|
|
|
default:
|
|
tcg_abort();
|
|
}
|
|
op |= BF(cr) | ((type == TCG_TYPE_I64) << 21);
|
|
|
|
if (imm) {
|
|
tcg_out32(s, op | RA(arg1) | (arg2 & 0xffff));
|
|
} else {
|
|
if (const_arg2) {
|
|
tcg_out_movi(s, type, TCG_REG_R0, arg2);
|
|
arg2 = TCG_REG_R0;
|
|
}
|
|
tcg_out32(s, op | RA(arg1) | RB(arg2));
|
|
}
|
|
}
|
|
|
|
static void tcg_out_setcond_eq0(TCGContext *s, TCGType type,
|
|
TCGReg dst, TCGReg src)
|
|
{
|
|
tcg_out32(s, (type == TCG_TYPE_I64 ? CNTLZD : CNTLZW) | RS(src) | RA(dst));
|
|
tcg_out_shri64(s, dst, dst, type == TCG_TYPE_I64 ? 6 : 5);
|
|
}
|
|
|
|
static void tcg_out_setcond_ne0(TCGContext *s, TCGReg dst, TCGReg src)
|
|
{
|
|
/* X != 0 implies X + -1 generates a carry. Extra addition
|
|
trickery means: R = X-1 + ~X + C = X-1 + (-X+1) + C = C. */
|
|
if (dst != src) {
|
|
tcg_out32(s, ADDIC | TAI(dst, src, -1));
|
|
tcg_out32(s, SUBFE | TAB(dst, dst, src));
|
|
} else {
|
|
tcg_out32(s, ADDIC | TAI(TCG_REG_R0, src, -1));
|
|
tcg_out32(s, SUBFE | TAB(dst, TCG_REG_R0, src));
|
|
}
|
|
}
|
|
|
|
static TCGReg tcg_gen_setcond_xor(TCGContext *s, TCGReg arg1, TCGArg arg2,
|
|
bool const_arg2)
|
|
{
|
|
if (const_arg2) {
|
|
if ((uint32_t)arg2 == arg2) {
|
|
tcg_out_xori32(s, TCG_REG_R0, arg1, arg2);
|
|
} else {
|
|
tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, arg2);
|
|
tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, TCG_REG_R0));
|
|
}
|
|
} else {
|
|
tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, arg2));
|
|
}
|
|
return TCG_REG_R0;
|
|
}
|
|
|
|
static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond,
|
|
TCGArg arg0, TCGArg arg1, TCGArg arg2,
|
|
int const_arg2)
|
|
{
|
|
int crop, sh;
|
|
|
|
/* Ignore high bits of a potential constant arg2. */
|
|
if (type == TCG_TYPE_I32) {
|
|
arg2 = (uint32_t)arg2;
|
|
}
|
|
|
|
/* Handle common and trivial cases before handling anything else. */
|
|
if (arg2 == 0) {
|
|
switch (cond) {
|
|
case TCG_COND_EQ:
|
|
tcg_out_setcond_eq0(s, type, arg0, arg1);
|
|
return;
|
|
case TCG_COND_NE:
|
|
if (type == TCG_TYPE_I32) {
|
|
tcg_out_ext32u(s, TCG_REG_R0, arg1);
|
|
arg1 = TCG_REG_R0;
|
|
}
|
|
tcg_out_setcond_ne0(s, arg0, arg1);
|
|
return;
|
|
case TCG_COND_GE:
|
|
tcg_out32(s, NOR | SAB(arg1, arg0, arg1));
|
|
arg1 = arg0;
|
|
/* FALLTHRU */
|
|
case TCG_COND_LT:
|
|
/* Extract the sign bit. */
|
|
tcg_out_rld(s, RLDICL, arg0, arg1,
|
|
type == TCG_TYPE_I64 ? 1 : 33, 63);
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If we have ISEL, we can implement everything with 3 or 4 insns.
|
|
All other cases below are also at least 3 insns, so speed up the
|
|
code generator by not considering them and always using ISEL. */
|
|
if (HAVE_ISEL) {
|
|
int isel, tab;
|
|
|
|
tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
|
|
|
|
isel = tcg_to_isel[cond];
|
|
|
|
tcg_out_movi(s, type, arg0, 1);
|
|
if (isel & 1) {
|
|
/* arg0 = (bc ? 0 : 1) */
|
|
tab = TAB(arg0, 0, arg0);
|
|
isel &= ~1;
|
|
} else {
|
|
/* arg0 = (bc ? 1 : 0) */
|
|
tcg_out_movi(s, type, TCG_REG_R0, 0);
|
|
tab = TAB(arg0, arg0, TCG_REG_R0);
|
|
}
|
|
tcg_out32(s, isel | tab);
|
|
return;
|
|
}
|
|
|
|
switch (cond) {
|
|
case TCG_COND_EQ:
|
|
arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2);
|
|
tcg_out_setcond_eq0(s, type, arg0, arg1);
|
|
return;
|
|
|
|
case TCG_COND_NE:
|
|
arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2);
|
|
/* Discard the high bits only once, rather than both inputs. */
|
|
if (type == TCG_TYPE_I32) {
|
|
tcg_out_ext32u(s, TCG_REG_R0, arg1);
|
|
arg1 = TCG_REG_R0;
|
|
}
|
|
tcg_out_setcond_ne0(s, arg0, arg1);
|
|
return;
|
|
|
|
case TCG_COND_GT:
|
|
case TCG_COND_GTU:
|
|
sh = 30;
|
|
crop = 0;
|
|
goto crtest;
|
|
|
|
case TCG_COND_LT:
|
|
case TCG_COND_LTU:
|
|
sh = 29;
|
|
crop = 0;
|
|
goto crtest;
|
|
|
|
case TCG_COND_GE:
|
|
case TCG_COND_GEU:
|
|
sh = 31;
|
|
crop = CRNOR | BT(7, CR_EQ) | BA(7, CR_LT) | BB(7, CR_LT);
|
|
goto crtest;
|
|
|
|
case TCG_COND_LE:
|
|
case TCG_COND_LEU:
|
|
sh = 31;
|
|
crop = CRNOR | BT(7, CR_EQ) | BA(7, CR_GT) | BB(7, CR_GT);
|
|
crtest:
|
|
tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
|
|
if (crop) {
|
|
tcg_out32(s, crop);
|
|
}
|
|
tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7));
|
|
tcg_out_rlw(s, RLWINM, arg0, TCG_REG_R0, sh, 31, 31);
|
|
break;
|
|
|
|
default:
|
|
tcg_abort();
|
|
}
|
|
}
|
|
|
|
static void tcg_out_bc(TCGContext *s, int bc, int label_index)
|
|
{
|
|
TCGLabel *l = &s->labels[label_index];
|
|
|
|
if (l->has_value) {
|
|
tcg_out32(s, bc | reloc_pc14_val(s->code_ptr, l->u.value));
|
|
} else {
|
|
uint16_t val = *(uint16_t *) &s->code_ptr[2];
|
|
|
|
/* Thanks to Andrzej Zaborowski */
|
|
tcg_out32(s, bc | (val & 0xfffc));
|
|
tcg_out_reloc(s, s->code_ptr - 4, R_PPC_REL14, label_index, 0);
|
|
}
|
|
}
|
|
|
|
static void tcg_out_brcond(TCGContext *s, TCGCond cond,
|
|
TCGArg arg1, TCGArg arg2, int const_arg2,
|
|
int label_index, TCGType type)
|
|
{
|
|
tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
|
|
tcg_out_bc(s, tcg_to_bc[cond], label_index);
|
|
}
|
|
|
|
static void tcg_out_movcond(TCGContext *s, TCGType type, TCGCond cond,
|
|
TCGArg dest, TCGArg c1, TCGArg c2, TCGArg v1,
|
|
TCGArg v2, bool const_c2)
|
|
{
|
|
/* If for some reason both inputs are zero, don't produce bad code. */
|
|
if (v1 == 0 && v2 == 0) {
|
|
tcg_out_movi(s, type, dest, 0);
|
|
return;
|
|
}
|
|
|
|
tcg_out_cmp(s, cond, c1, c2, const_c2, 7, type);
|
|
|
|
if (HAVE_ISEL) {
|
|
int isel = tcg_to_isel[cond];
|
|
|
|
/* Swap the V operands if the operation indicates inversion. */
|
|
if (isel & 1) {
|
|
int t = v1;
|
|
v1 = v2;
|
|
v2 = t;
|
|
isel &= ~1;
|
|
}
|
|
/* V1 == 0 is handled by isel; V2 == 0 must be handled by hand. */
|
|
if (v2 == 0) {
|
|
tcg_out_movi(s, type, TCG_REG_R0, 0);
|
|
}
|
|
tcg_out32(s, isel | TAB(dest, v1, v2));
|
|
} else {
|
|
if (dest == v2) {
|
|
cond = tcg_invert_cond(cond);
|
|
v2 = v1;
|
|
} else if (dest != v1) {
|
|
if (v1 == 0) {
|
|
tcg_out_movi(s, type, dest, 0);
|
|
} else {
|
|
tcg_out_mov(s, type, dest, v1);
|
|
}
|
|
}
|
|
/* Branch forward over one insn */
|
|
tcg_out32(s, tcg_to_bc[cond] | 8);
|
|
if (v2 == 0) {
|
|
tcg_out_movi(s, type, dest, 0);
|
|
} else {
|
|
tcg_out_mov(s, type, dest, v2);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ppc_tb_set_jmp_target(unsigned long jmp_addr, unsigned long addr)
|
|
{
|
|
TCGContext s;
|
|
unsigned long patch_size;
|
|
|
|
s.code_ptr = (uint8_t *) jmp_addr;
|
|
tcg_out_b(&s, 0, addr);
|
|
patch_size = s.code_ptr - (uint8_t *) jmp_addr;
|
|
flush_icache_range(jmp_addr, jmp_addr + patch_size);
|
|
}
|
|
|
|
static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
|
|
const int *const_args)
|
|
{
|
|
TCGArg a0, a1, a2;
|
|
int c;
|
|
|
|
switch (opc) {
|
|
case INDEX_op_exit_tb:
|
|
tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R3, args[0]);
|
|
tcg_out_b(s, 0, (tcg_target_long)tb_ret_addr);
|
|
break;
|
|
case INDEX_op_goto_tb:
|
|
if (s->tb_jmp_offset) {
|
|
/* Direct jump method. */
|
|
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
|
|
s->code_ptr += 28;
|
|
} else {
|
|
/* Indirect jump method. */
|
|
tcg_abort();
|
|
}
|
|
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
|
break;
|
|
case INDEX_op_br:
|
|
{
|
|
TCGLabel *l = &s->labels[args[0]];
|
|
|
|
if (l->has_value) {
|
|
tcg_out_b(s, 0, l->u.value);
|
|
} else {
|
|
uint32_t val = *(uint32_t *) s->code_ptr;
|
|
|
|
/* Thanks to Andrzej Zaborowski */
|
|
tcg_out32(s, B | (val & 0x3fffffc));
|
|
tcg_out_reloc(s, s->code_ptr - 4, R_PPC_REL24, args[0], 0);
|
|
}
|
|
}
|
|
break;
|
|
case INDEX_op_call:
|
|
tcg_out_call(s, args[0], const_args[0]);
|
|
break;
|
|
case INDEX_op_movi_i32:
|
|
tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]);
|
|
break;
|
|
case INDEX_op_movi_i64:
|
|
tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]);
|
|
break;
|
|
case INDEX_op_ld8u_i32:
|
|
case INDEX_op_ld8u_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LBZ, LBZX);
|
|
break;
|
|
case INDEX_op_ld8s_i32:
|
|
case INDEX_op_ld8s_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LBZ, LBZX);
|
|
tcg_out32(s, EXTSB | RS(args[0]) | RA(args[0]));
|
|
break;
|
|
case INDEX_op_ld16u_i32:
|
|
case INDEX_op_ld16u_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LHZ, LHZX);
|
|
break;
|
|
case INDEX_op_ld16s_i32:
|
|
case INDEX_op_ld16s_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LHA, LHAX);
|
|
break;
|
|
case INDEX_op_ld_i32:
|
|
case INDEX_op_ld32u_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LWZ, LWZX);
|
|
break;
|
|
case INDEX_op_ld32s_i64:
|
|
tcg_out_ldsta(s, args[0], args[1], args[2], LWA, LWAX);
|
|
break;
|
|
case INDEX_op_ld_i64:
|
|
tcg_out_ldsta(s, args[0], args[1], args[2], LD, LDX);
|
|
break;
|
|
case INDEX_op_st8_i32:
|
|
case INDEX_op_st8_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], STB, STBX);
|
|
break;
|
|
case INDEX_op_st16_i32:
|
|
case INDEX_op_st16_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], STH, STHX);
|
|
break;
|
|
case INDEX_op_st_i32:
|
|
case INDEX_op_st32_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], STW, STWX);
|
|
break;
|
|
case INDEX_op_st_i64:
|
|
tcg_out_ldsta(s, args[0], args[1], args[2], STD, STDX);
|
|
break;
|
|
|
|
case INDEX_op_add_i32:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
int32_t l, h;
|
|
do_addi_32:
|
|
l = (int16_t)a2;
|
|
h = a2 - l;
|
|
if (h) {
|
|
tcg_out32(s, ADDIS | TAI(a0, a1, h >> 16));
|
|
a1 = a0;
|
|
}
|
|
if (l || a0 != a1) {
|
|
tcg_out32(s, ADDI | TAI(a0, a1, l));
|
|
}
|
|
} else {
|
|
tcg_out32(s, ADD | TAB(a0, a1, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_sub_i32:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[1]) {
|
|
if (const_args[2]) {
|
|
tcg_out_movi(s, TCG_TYPE_I32, a0, a1 - a2);
|
|
} else {
|
|
tcg_out32(s, SUBFIC | TAI(a0, a2, a1));
|
|
}
|
|
} else if (const_args[2]) {
|
|
a2 = -a2;
|
|
goto do_addi_32;
|
|
} else {
|
|
tcg_out32(s, SUBF | TAB(a0, a2, a1));
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_and_i32:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
tcg_out_andi32(s, a0, a1, a2);
|
|
} else {
|
|
tcg_out32(s, AND | SAB(a1, a0, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_and_i64:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
tcg_out_andi64(s, a0, a1, a2);
|
|
} else {
|
|
tcg_out32(s, AND | SAB(a1, a0, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_or_i64:
|
|
case INDEX_op_or_i32:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
tcg_out_ori32(s, a0, a1, a2);
|
|
} else {
|
|
tcg_out32(s, OR | SAB(a1, a0, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_xor_i64:
|
|
case INDEX_op_xor_i32:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
tcg_out_xori32(s, a0, a1, a2);
|
|
} else {
|
|
tcg_out32(s, XOR | SAB(a1, a0, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_andc_i32:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
tcg_out_andi32(s, a0, a1, ~a2);
|
|
} else {
|
|
tcg_out32(s, ANDC | SAB(a1, a0, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_andc_i64:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
tcg_out_andi64(s, a0, a1, ~a2);
|
|
} else {
|
|
tcg_out32(s, ANDC | SAB(a1, a0, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_orc_i32:
|
|
if (const_args[2]) {
|
|
tcg_out_ori32(s, args[0], args[1], ~args[2]);
|
|
break;
|
|
}
|
|
/* FALLTHRU */
|
|
case INDEX_op_orc_i64:
|
|
tcg_out32(s, ORC | SAB(args[1], args[0], args[2]));
|
|
break;
|
|
case INDEX_op_eqv_i32:
|
|
if (const_args[2]) {
|
|
tcg_out_xori32(s, args[0], args[1], ~args[2]);
|
|
break;
|
|
}
|
|
/* FALLTHRU */
|
|
case INDEX_op_eqv_i64:
|
|
tcg_out32(s, EQV | SAB(args[1], args[0], args[2]));
|
|
break;
|
|
case INDEX_op_nand_i32:
|
|
case INDEX_op_nand_i64:
|
|
tcg_out32(s, NAND | SAB(args[1], args[0], args[2]));
|
|
break;
|
|
case INDEX_op_nor_i32:
|
|
case INDEX_op_nor_i64:
|
|
tcg_out32(s, NOR | SAB(args[1], args[0], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_mul_i32:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
tcg_out32(s, MULLI | TAI(a0, a1, a2));
|
|
} else {
|
|
tcg_out32(s, MULLW | TAB(a0, a1, a2));
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_div_i32:
|
|
tcg_out32(s, DIVW | TAB(args[0], args[1], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_divu_i32:
|
|
tcg_out32(s, DIVWU | TAB(args[0], args[1], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_shl_i32:
|
|
if (const_args[2]) {
|
|
tcg_out_rlw(s, RLWINM, args[0], args[1], args[2], 0, 31 - args[2]);
|
|
} else {
|
|
tcg_out32(s, SLW | SAB(args[1], args[0], args[2]));
|
|
}
|
|
break;
|
|
case INDEX_op_shr_i32:
|
|
if (const_args[2]) {
|
|
tcg_out_rlw(s, RLWINM, args[0], args[1], 32 - args[2], args[2], 31);
|
|
} else {
|
|
tcg_out32(s, SRW | SAB(args[1], args[0], args[2]));
|
|
}
|
|
break;
|
|
case INDEX_op_sar_i32:
|
|
if (const_args[2]) {
|
|
tcg_out32(s, SRAWI | RS(args[1]) | RA(args[0]) | SH(args[2]));
|
|
} else {
|
|
tcg_out32(s, SRAW | SAB(args[1], args[0], args[2]));
|
|
}
|
|
break;
|
|
case INDEX_op_rotl_i32:
|
|
if (const_args[2]) {
|
|
tcg_out_rlw(s, RLWINM, args[0], args[1], args[2], 0, 31);
|
|
} else {
|
|
tcg_out32(s, RLWNM | SAB(args[1], args[0], args[2])
|
|
| MB(0) | ME(31));
|
|
}
|
|
break;
|
|
case INDEX_op_rotr_i32:
|
|
if (const_args[2]) {
|
|
tcg_out_rlw(s, RLWINM, args[0], args[1], 32 - args[2], 0, 31);
|
|
} else {
|
|
tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 32));
|
|
tcg_out32(s, RLWNM | SAB(args[1], args[0], TCG_REG_R0)
|
|
| MB(0) | ME(31));
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_brcond_i32:
|
|
tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
|
|
args[3], TCG_TYPE_I32);
|
|
break;
|
|
|
|
case INDEX_op_brcond_i64:
|
|
tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
|
|
args[3], TCG_TYPE_I64);
|
|
break;
|
|
|
|
case INDEX_op_neg_i32:
|
|
case INDEX_op_neg_i64:
|
|
tcg_out32(s, NEG | RT(args[0]) | RA(args[1]));
|
|
break;
|
|
|
|
case INDEX_op_not_i32:
|
|
case INDEX_op_not_i64:
|
|
tcg_out32(s, NOR | SAB(args[1], args[0], args[1]));
|
|
break;
|
|
|
|
case INDEX_op_add_i64:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
int32_t l0, h1, h2;
|
|
do_addi_64:
|
|
/* We can always split any 32-bit signed constant into 3 pieces.
|
|
Note the positive 0x80000000 coming from the sub_i64 path,
|
|
handled with the same code we need for eg 0x7fff8000. */
|
|
assert(a2 == (int32_t)a2 || a2 == 0x80000000);
|
|
l0 = (int16_t)a2;
|
|
h1 = a2 - l0;
|
|
h2 = 0;
|
|
if (h1 < 0 && (int64_t)a2 > 0) {
|
|
h2 = 0x40000000;
|
|
h1 = a2 - h2 - l0;
|
|
}
|
|
assert((TCGArg)h2 + h1 + l0 == a2);
|
|
|
|
if (h2) {
|
|
tcg_out32(s, ADDIS | TAI(a0, a1, h2 >> 16));
|
|
a1 = a0;
|
|
}
|
|
if (h1) {
|
|
tcg_out32(s, ADDIS | TAI(a0, a1, h1 >> 16));
|
|
a1 = a0;
|
|
}
|
|
if (l0 || a0 != a1) {
|
|
tcg_out32(s, ADDI | TAI(a0, a1, l0));
|
|
}
|
|
} else {
|
|
tcg_out32(s, ADD | TAB(a0, a1, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_sub_i64:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[1]) {
|
|
if (const_args[2]) {
|
|
tcg_out_movi(s, TCG_TYPE_I64, a0, a1 - a2);
|
|
} else {
|
|
tcg_out32(s, SUBFIC | TAI(a0, a2, a1));
|
|
}
|
|
} else if (const_args[2]) {
|
|
a2 = -a2;
|
|
goto do_addi_64;
|
|
} else {
|
|
tcg_out32(s, SUBF | TAB(a0, a2, a1));
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_shl_i64:
|
|
if (const_args[2]) {
|
|
tcg_out_shli64(s, args[0], args[1], args[2]);
|
|
} else {
|
|
tcg_out32(s, SLD | SAB(args[1], args[0], args[2]));
|
|
}
|
|
break;
|
|
case INDEX_op_shr_i64:
|
|
if (const_args[2]) {
|
|
tcg_out_shri64(s, args[0], args[1], args[2]);
|
|
} else {
|
|
tcg_out32(s, SRD | SAB(args[1], args[0], args[2]));
|
|
}
|
|
break;
|
|
case INDEX_op_sar_i64:
|
|
if (const_args[2]) {
|
|
int sh = SH(args[2] & 0x1f) | (((args[2] >> 5) & 1) << 1);
|
|
tcg_out32(s, SRADI | RA(args[0]) | RS(args[1]) | sh);
|
|
} else {
|
|
tcg_out32(s, SRAD | SAB(args[1], args[0], args[2]));
|
|
}
|
|
break;
|
|
case INDEX_op_rotl_i64:
|
|
if (const_args[2]) {
|
|
tcg_out_rld(s, RLDICL, args[0], args[1], args[2], 0);
|
|
} else {
|
|
tcg_out32(s, RLDCL | SAB(args[1], args[0], args[2]) | MB64(0));
|
|
}
|
|
break;
|
|
case INDEX_op_rotr_i64:
|
|
if (const_args[2]) {
|
|
tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 0);
|
|
} else {
|
|
tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 64));
|
|
tcg_out32(s, RLDCL | SAB(args[1], args[0], TCG_REG_R0) | MB64(0));
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_mul_i64:
|
|
a0 = args[0], a1 = args[1], a2 = args[2];
|
|
if (const_args[2]) {
|
|
tcg_out32(s, MULLI | TAI(a0, a1, a2));
|
|
} else {
|
|
tcg_out32(s, MULLD | TAB(a0, a1, a2));
|
|
}
|
|
break;
|
|
case INDEX_op_div_i64:
|
|
tcg_out32(s, DIVD | TAB(args[0], args[1], args[2]));
|
|
break;
|
|
case INDEX_op_divu_i64:
|
|
tcg_out32(s, DIVDU | TAB(args[0], args[1], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_qemu_ld8u:
|
|
tcg_out_qemu_ld(s, args, 0);
|
|
break;
|
|
case INDEX_op_qemu_ld8s:
|
|
tcg_out_qemu_ld(s, args, 0 | 4);
|
|
break;
|
|
case INDEX_op_qemu_ld16u:
|
|
tcg_out_qemu_ld(s, args, 1);
|
|
break;
|
|
case INDEX_op_qemu_ld16s:
|
|
tcg_out_qemu_ld(s, args, 1 | 4);
|
|
break;
|
|
case INDEX_op_qemu_ld32:
|
|
case INDEX_op_qemu_ld32u:
|
|
tcg_out_qemu_ld(s, args, 2);
|
|
break;
|
|
case INDEX_op_qemu_ld32s:
|
|
tcg_out_qemu_ld(s, args, 2 | 4);
|
|
break;
|
|
case INDEX_op_qemu_ld64:
|
|
tcg_out_qemu_ld(s, args, 3);
|
|
break;
|
|
case INDEX_op_qemu_st8:
|
|
tcg_out_qemu_st(s, args, 0);
|
|
break;
|
|
case INDEX_op_qemu_st16:
|
|
tcg_out_qemu_st(s, args, 1);
|
|
break;
|
|
case INDEX_op_qemu_st32:
|
|
tcg_out_qemu_st(s, args, 2);
|
|
break;
|
|
case INDEX_op_qemu_st64:
|
|
tcg_out_qemu_st(s, args, 3);
|
|
break;
|
|
|
|
case INDEX_op_ext8s_i32:
|
|
case INDEX_op_ext8s_i64:
|
|
c = EXTSB;
|
|
goto gen_ext;
|
|
case INDEX_op_ext16s_i32:
|
|
case INDEX_op_ext16s_i64:
|
|
c = EXTSH;
|
|
goto gen_ext;
|
|
case INDEX_op_ext32s_i64:
|
|
c = EXTSW;
|
|
goto gen_ext;
|
|
gen_ext:
|
|
tcg_out32(s, c | RS(args[1]) | RA(args[0]));
|
|
break;
|
|
|
|
case INDEX_op_setcond_i32:
|
|
tcg_out_setcond(s, TCG_TYPE_I32, args[3], args[0], args[1], args[2],
|
|
const_args[2]);
|
|
break;
|
|
case INDEX_op_setcond_i64:
|
|
tcg_out_setcond(s, TCG_TYPE_I64, args[3], args[0], args[1], args[2],
|
|
const_args[2]);
|
|
break;
|
|
|
|
case INDEX_op_bswap16_i32:
|
|
case INDEX_op_bswap16_i64:
|
|
a0 = args[0], a1 = args[1];
|
|
/* a1 = abcd */
|
|
if (a0 != a1) {
|
|
/* a0 = (a1 r<< 24) & 0xff # 000c */
|
|
tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31);
|
|
/* a0 = (a0 & ~0xff00) | (a1 r<< 8) & 0xff00 # 00dc */
|
|
tcg_out_rlw(s, RLWIMI, a0, a1, 8, 16, 23);
|
|
} else {
|
|
/* r0 = (a1 r<< 8) & 0xff00 # 00d0 */
|
|
tcg_out_rlw(s, RLWINM, TCG_REG_R0, a1, 8, 16, 23);
|
|
/* a0 = (a1 r<< 24) & 0xff # 000c */
|
|
tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31);
|
|
/* a0 = a0 | r0 # 00dc */
|
|
tcg_out32(s, OR | SAB(TCG_REG_R0, a0, a0));
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_bswap32_i32:
|
|
case INDEX_op_bswap32_i64:
|
|
/* Stolen from gcc's builtin_bswap32 */
|
|
a1 = args[1];
|
|
a0 = args[0] == a1 ? TCG_REG_R0 : args[0];
|
|
|
|
/* a1 = args[1] # abcd */
|
|
/* a0 = rotate_left (a1, 8) # bcda */
|
|
tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31);
|
|
/* a0 = (a0 & ~0xff000000) | ((a1 r<< 24) & 0xff000000) # dcda */
|
|
tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7);
|
|
/* a0 = (a0 & ~0x0000ff00) | ((a1 r<< 24) & 0x0000ff00) # dcba */
|
|
tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23);
|
|
|
|
if (a0 == TCG_REG_R0) {
|
|
tcg_out_mov(s, TCG_TYPE_I64, args[0], a0);
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_bswap64_i64:
|
|
a0 = args[0], a1 = args[1], a2 = TCG_REG_R0;
|
|
if (a0 == a1) {
|
|
a0 = TCG_REG_R0;
|
|
a2 = a1;
|
|
}
|
|
|
|
/* a1 = # abcd efgh */
|
|
/* a0 = rl32(a1, 8) # 0000 fghe */
|
|
tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31);
|
|
/* a0 = dep(a0, rl32(a1, 24), 0xff000000) # 0000 hghe */
|
|
tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7);
|
|
/* a0 = dep(a0, rl32(a1, 24), 0x0000ff00) # 0000 hgfe */
|
|
tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23);
|
|
|
|
/* a0 = rl64(a0, 32) # hgfe 0000 */
|
|
/* a2 = rl64(a1, 32) # efgh abcd */
|
|
tcg_out_rld(s, RLDICL, a0, a0, 32, 0);
|
|
tcg_out_rld(s, RLDICL, a2, a1, 32, 0);
|
|
|
|
/* a0 = dep(a0, rl32(a2, 8), 0xffffffff) # hgfe bcda */
|
|
tcg_out_rlw(s, RLWIMI, a0, a2, 8, 0, 31);
|
|
/* a0 = dep(a0, rl32(a2, 24), 0xff000000) # hgfe dcda */
|
|
tcg_out_rlw(s, RLWIMI, a0, a2, 24, 0, 7);
|
|
/* a0 = dep(a0, rl32(a2, 24), 0x0000ff00) # hgfe dcba */
|
|
tcg_out_rlw(s, RLWIMI, a0, a2, 24, 16, 23);
|
|
|
|
if (a0 == 0) {
|
|
tcg_out_mov(s, TCG_TYPE_I64, args[0], a0);
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_deposit_i32:
|
|
if (const_args[2]) {
|
|
uint32_t mask = ((2u << (args[4] - 1)) - 1) << args[3];
|
|
tcg_out_andi32(s, args[0], args[0], ~mask);
|
|
} else {
|
|
tcg_out_rlw(s, RLWIMI, args[0], args[2], args[3],
|
|
32 - args[3] - args[4], 31 - args[3]);
|
|
}
|
|
break;
|
|
case INDEX_op_deposit_i64:
|
|
if (const_args[2]) {
|
|
uint64_t mask = ((2ull << (args[4] - 1)) - 1) << args[3];
|
|
tcg_out_andi64(s, args[0], args[0], ~mask);
|
|
} else {
|
|
tcg_out_rld(s, RLDIMI, args[0], args[2], args[3],
|
|
64 - args[3] - args[4]);
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_movcond_i32:
|
|
tcg_out_movcond(s, TCG_TYPE_I32, args[5], args[0], args[1], args[2],
|
|
args[3], args[4], const_args[2]);
|
|
break;
|
|
case INDEX_op_movcond_i64:
|
|
tcg_out_movcond(s, TCG_TYPE_I64, args[5], args[0], args[1], args[2],
|
|
args[3], args[4], const_args[2]);
|
|
break;
|
|
|
|
case INDEX_op_add2_i64:
|
|
/* Note that the CA bit is defined based on the word size of the
|
|
environment. So in 64-bit mode it's always carry-out of bit 63.
|
|
The fallback code using deposit works just as well for 32-bit. */
|
|
a0 = args[0], a1 = args[1];
|
|
if (a0 == args[3] || (!const_args[5] && a0 == args[5])) {
|
|
a0 = TCG_REG_R0;
|
|
}
|
|
if (const_args[4]) {
|
|
tcg_out32(s, ADDIC | TAI(a0, args[2], args[4]));
|
|
} else {
|
|
tcg_out32(s, ADDC | TAB(a0, args[2], args[4]));
|
|
}
|
|
if (const_args[5]) {
|
|
tcg_out32(s, (args[5] ? ADDME : ADDZE) | RT(a1) | RA(args[3]));
|
|
} else {
|
|
tcg_out32(s, ADDE | TAB(a1, args[3], args[5]));
|
|
}
|
|
if (a0 != args[0]) {
|
|
tcg_out_mov(s, TCG_TYPE_I64, args[0], a0);
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_sub2_i64:
|
|
a0 = args[0], a1 = args[1];
|
|
if (a0 == args[5] || (!const_args[4] && a0 == args[4])) {
|
|
a0 = TCG_REG_R0;
|
|
}
|
|
if (const_args[2]) {
|
|
tcg_out32(s, SUBFIC | TAI(a0, args[3], args[2]));
|
|
} else {
|
|
tcg_out32(s, SUBFC | TAB(a0, args[3], args[2]));
|
|
}
|
|
if (const_args[4]) {
|
|
tcg_out32(s, (args[4] ? SUBFME : SUBFZE) | RT(a1) | RA(args[5]));
|
|
} else {
|
|
tcg_out32(s, SUBFE | TAB(a1, args[5], args[4]));
|
|
}
|
|
if (a0 != args[0]) {
|
|
tcg_out_mov(s, TCG_TYPE_I64, args[0], a0);
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_muluh_i64:
|
|
tcg_out32(s, MULHDU | TAB(args[0], args[1], args[2]));
|
|
break;
|
|
case INDEX_op_mulsh_i64:
|
|
tcg_out32(s, MULHD | TAB(args[0], args[1], args[2]));
|
|
break;
|
|
|
|
default:
|
|
tcg_dump_ops(s);
|
|
tcg_abort();
|
|
}
|
|
}
|
|
|
|
static const TCGTargetOpDef ppc_op_defs[] = {
|
|
{ INDEX_op_exit_tb, { } },
|
|
{ INDEX_op_goto_tb, { } },
|
|
{ INDEX_op_call, { "ri" } },
|
|
{ INDEX_op_br, { } },
|
|
|
|
{ INDEX_op_mov_i32, { "r", "r" } },
|
|
{ INDEX_op_mov_i64, { "r", "r" } },
|
|
{ INDEX_op_movi_i32, { "r" } },
|
|
{ INDEX_op_movi_i64, { "r" } },
|
|
|
|
{ INDEX_op_ld8u_i32, { "r", "r" } },
|
|
{ INDEX_op_ld8s_i32, { "r", "r" } },
|
|
{ INDEX_op_ld16u_i32, { "r", "r" } },
|
|
{ INDEX_op_ld16s_i32, { "r", "r" } },
|
|
{ INDEX_op_ld_i32, { "r", "r" } },
|
|
{ INDEX_op_ld_i64, { "r", "r" } },
|
|
{ INDEX_op_st8_i32, { "r", "r" } },
|
|
{ INDEX_op_st8_i64, { "r", "r" } },
|
|
{ INDEX_op_st16_i32, { "r", "r" } },
|
|
{ INDEX_op_st16_i64, { "r", "r" } },
|
|
{ INDEX_op_st_i32, { "r", "r" } },
|
|
{ INDEX_op_st_i64, { "r", "r" } },
|
|
{ INDEX_op_st32_i64, { "r", "r" } },
|
|
|
|
{ INDEX_op_ld8u_i64, { "r", "r" } },
|
|
{ INDEX_op_ld8s_i64, { "r", "r" } },
|
|
{ INDEX_op_ld16u_i64, { "r", "r" } },
|
|
{ INDEX_op_ld16s_i64, { "r", "r" } },
|
|
{ INDEX_op_ld32u_i64, { "r", "r" } },
|
|
{ INDEX_op_ld32s_i64, { "r", "r" } },
|
|
|
|
{ INDEX_op_add_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_mul_i32, { "r", "r", "rI" } },
|
|
{ INDEX_op_div_i32, { "r", "r", "r" } },
|
|
{ INDEX_op_divu_i32, { "r", "r", "r" } },
|
|
{ INDEX_op_sub_i32, { "r", "rI", "ri" } },
|
|
{ INDEX_op_and_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_or_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_xor_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_andc_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_orc_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_eqv_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_nand_i32, { "r", "r", "r" } },
|
|
{ INDEX_op_nor_i32, { "r", "r", "r" } },
|
|
|
|
{ INDEX_op_shl_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_shr_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_sar_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_rotl_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_rotr_i32, { "r", "r", "ri" } },
|
|
|
|
{ INDEX_op_brcond_i32, { "r", "ri" } },
|
|
{ INDEX_op_brcond_i64, { "r", "ri" } },
|
|
|
|
{ INDEX_op_neg_i32, { "r", "r" } },
|
|
{ INDEX_op_not_i32, { "r", "r" } },
|
|
|
|
{ INDEX_op_add_i64, { "r", "r", "rT" } },
|
|
{ INDEX_op_sub_i64, { "r", "rI", "rT" } },
|
|
{ INDEX_op_and_i64, { "r", "r", "ri" } },
|
|
{ INDEX_op_or_i64, { "r", "r", "rU" } },
|
|
{ INDEX_op_xor_i64, { "r", "r", "rU" } },
|
|
{ INDEX_op_andc_i64, { "r", "r", "ri" } },
|
|
{ INDEX_op_orc_i64, { "r", "r", "r" } },
|
|
{ INDEX_op_eqv_i64, { "r", "r", "r" } },
|
|
{ INDEX_op_nand_i64, { "r", "r", "r" } },
|
|
{ INDEX_op_nor_i64, { "r", "r", "r" } },
|
|
|
|
{ INDEX_op_shl_i64, { "r", "r", "ri" } },
|
|
{ INDEX_op_shr_i64, { "r", "r", "ri" } },
|
|
{ INDEX_op_sar_i64, { "r", "r", "ri" } },
|
|
{ INDEX_op_rotl_i64, { "r", "r", "ri" } },
|
|
{ INDEX_op_rotr_i64, { "r", "r", "ri" } },
|
|
|
|
{ INDEX_op_mul_i64, { "r", "r", "rI" } },
|
|
{ INDEX_op_div_i64, { "r", "r", "r" } },
|
|
{ INDEX_op_divu_i64, { "r", "r", "r" } },
|
|
|
|
{ INDEX_op_neg_i64, { "r", "r" } },
|
|
{ INDEX_op_not_i64, { "r", "r" } },
|
|
|
|
{ INDEX_op_qemu_ld8u, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld8s, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld16u, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld16s, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld32, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld32u, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld32s, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld64, { "r", "L" } },
|
|
|
|
{ INDEX_op_qemu_st8, { "S", "S" } },
|
|
{ INDEX_op_qemu_st16, { "S", "S" } },
|
|
{ INDEX_op_qemu_st32, { "S", "S" } },
|
|
{ INDEX_op_qemu_st64, { "S", "S" } },
|
|
|
|
{ INDEX_op_ext8s_i32, { "r", "r" } },
|
|
{ INDEX_op_ext16s_i32, { "r", "r" } },
|
|
{ INDEX_op_ext8s_i64, { "r", "r" } },
|
|
{ INDEX_op_ext16s_i64, { "r", "r" } },
|
|
{ INDEX_op_ext32s_i64, { "r", "r" } },
|
|
|
|
{ INDEX_op_setcond_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_setcond_i64, { "r", "r", "ri" } },
|
|
{ INDEX_op_movcond_i32, { "r", "r", "ri", "rZ", "rZ" } },
|
|
{ INDEX_op_movcond_i64, { "r", "r", "ri", "rZ", "rZ" } },
|
|
|
|
{ INDEX_op_bswap16_i32, { "r", "r" } },
|
|
{ INDEX_op_bswap16_i64, { "r", "r" } },
|
|
{ INDEX_op_bswap32_i32, { "r", "r" } },
|
|
{ INDEX_op_bswap32_i64, { "r", "r" } },
|
|
{ INDEX_op_bswap64_i64, { "r", "r" } },
|
|
|
|
{ INDEX_op_deposit_i32, { "r", "0", "rZ" } },
|
|
{ INDEX_op_deposit_i64, { "r", "0", "rZ" } },
|
|
|
|
{ INDEX_op_add2_i64, { "r", "r", "r", "r", "rI", "rZM" } },
|
|
{ INDEX_op_sub2_i64, { "r", "r", "rI", "r", "rZM", "r" } },
|
|
{ INDEX_op_mulsh_i64, { "r", "r", "r" } },
|
|
{ INDEX_op_muluh_i64, { "r", "r", "r" } },
|
|
|
|
{ -1 },
|
|
};
|
|
|
|
static void tcg_target_init(TCGContext *s)
|
|
{
|
|
#ifdef CONFIG_GETAUXVAL
|
|
unsigned long hwcap = getauxval(AT_HWCAP);
|
|
if (hwcap & PPC_FEATURE_ARCH_2_06) {
|
|
have_isa_2_06 = true;
|
|
}
|
|
#endif
|
|
|
|
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
|
|
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff);
|
|
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
|
|
(1 << TCG_REG_R0) |
|
|
#ifdef __APPLE__
|
|
(1 << TCG_REG_R2) |
|
|
#endif
|
|
(1 << TCG_REG_R3) |
|
|
(1 << TCG_REG_R4) |
|
|
(1 << TCG_REG_R5) |
|
|
(1 << TCG_REG_R6) |
|
|
(1 << TCG_REG_R7) |
|
|
(1 << TCG_REG_R8) |
|
|
(1 << TCG_REG_R9) |
|
|
(1 << TCG_REG_R10) |
|
|
(1 << TCG_REG_R11) |
|
|
(1 << TCG_REG_R12)
|
|
);
|
|
|
|
tcg_regset_clear(s->reserved_regs);
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0);
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1);
|
|
#ifndef __APPLE__
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2);
|
|
#endif
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13);
|
|
|
|
tcg_add_target_add_op_defs(ppc_op_defs);
|
|
}
|