/* * Tiny Code Generator for QEMU * * Copyright (c) 2009-2010 Aurelien Jarno * Based on i386/tcg-target.c - Copyright (c) 2008 Fabrice Bellard * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ /* * Register definitions */ #ifndef NDEBUG static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47", "r48", "r49", "r50", "r51", "r52", "r53", "r54", "r55", "r56", "r57", "r58", "r59", "r60", "r61", "r62", "r63", }; #endif #ifdef CONFIG_USE_GUEST_BASE #define TCG_GUEST_BASE_REG TCG_REG_R55 #else #define TCG_GUEST_BASE_REG TCG_REG_R0 #endif #ifndef GUEST_BASE #define GUEST_BASE 0 #endif /* Branch registers */ enum { TCG_REG_B0 = 0, TCG_REG_B1, TCG_REG_B2, TCG_REG_B3, TCG_REG_B4, TCG_REG_B5, TCG_REG_B6, TCG_REG_B7, }; /* Floating point registers */ enum { TCG_REG_F0 = 0, TCG_REG_F1, TCG_REG_F2, TCG_REG_F3, TCG_REG_F4, TCG_REG_F5, TCG_REG_F6, TCG_REG_F7, TCG_REG_F8, TCG_REG_F9, TCG_REG_F10, TCG_REG_F11, TCG_REG_F12, TCG_REG_F13, TCG_REG_F14, TCG_REG_F15, }; /* Predicate registers */ enum { TCG_REG_P0 = 0, TCG_REG_P1, TCG_REG_P2, TCG_REG_P3, TCG_REG_P4, TCG_REG_P5, TCG_REG_P6, TCG_REG_P7, TCG_REG_P8, TCG_REG_P9, TCG_REG_P10, TCG_REG_P11, TCG_REG_P12, TCG_REG_P13, TCG_REG_P14, TCG_REG_P15, }; /* Application registers */ enum { TCG_REG_PFS = 64, }; static const int tcg_target_reg_alloc_order[] = { TCG_REG_R34, TCG_REG_R35, TCG_REG_R36, TCG_REG_R37, TCG_REG_R38, TCG_REG_R39, TCG_REG_R40, TCG_REG_R41, TCG_REG_R42, TCG_REG_R43, TCG_REG_R44, TCG_REG_R45, TCG_REG_R46, TCG_REG_R47, TCG_REG_R48, TCG_REG_R49, TCG_REG_R50, TCG_REG_R51, TCG_REG_R52, TCG_REG_R53, TCG_REG_R54, TCG_REG_R55, TCG_REG_R14, TCG_REG_R15, TCG_REG_R16, TCG_REG_R17, TCG_REG_R18, TCG_REG_R19, TCG_REG_R20, TCG_REG_R21, TCG_REG_R22, TCG_REG_R23, TCG_REG_R24, TCG_REG_R25, TCG_REG_R26, TCG_REG_R27, TCG_REG_R28, TCG_REG_R29, TCG_REG_R30, TCG_REG_R31, TCG_REG_R56, TCG_REG_R57, TCG_REG_R58, TCG_REG_R59, TCG_REG_R60, TCG_REG_R61, TCG_REG_R62, TCG_REG_R63, TCG_REG_R8, TCG_REG_R9, TCG_REG_R10, TCG_REG_R11 }; static const int tcg_target_call_iarg_regs[8] = { TCG_REG_R56, TCG_REG_R57, TCG_REG_R58, TCG_REG_R59, TCG_REG_R60, TCG_REG_R61, TCG_REG_R62, TCG_REG_R63, }; static const int tcg_target_call_oarg_regs[2] = { TCG_REG_R8, TCG_REG_R9 }; /* maximum number of register used for input function arguments */ static inline int tcg_target_get_call_iarg_regs_count(int flags) { return 8; } /* * opcode formation */ /* bundle templates: stops (double bar in the IA64 manual) are marked with an uppercase letter. */ enum { mii = 0x00, miI = 0x01, mIi = 0x02, mII = 0x03, mlx = 0x04, mLX = 0x05, mmi = 0x08, mmI = 0x09, Mmi = 0x0a, MmI = 0x0b, mfi = 0x0c, mfI = 0x0d, mmf = 0x0e, mmF = 0x0f, mib = 0x10, miB = 0x11, mbb = 0x12, mbB = 0x13, bbb = 0x16, bbB = 0x17, mmb = 0x18, mmB = 0x19, mfb = 0x1c, mfB = 0x1d, }; enum { OPC_ADD_A1 = 0x10000000000ull, OPC_AND_A1 = 0x10060000000ull, OPC_AND_A3 = 0x10160000000ull, OPC_ANDCM_A1 = 0x10068000000ull, OPC_ANDCM_A3 = 0x10168000000ull, OPC_ADDS_A4 = 0x10800000000ull, OPC_ADDL_A5 = 0x12000000000ull, OPC_ALLOC_M34 = 0x02c00000000ull, OPC_BR_DPTK_FEW_B1 = 0x08400000000ull, OPC_BR_SPTK_MANY_B1 = 0x08000001000ull, OPC_BR_SPTK_MANY_B4 = 0x00100001000ull, OPC_BR_CALL_SPTK_MANY_B5 = 0x02100001000ull, OPC_BR_RET_SPTK_MANY_B4 = 0x00108001100ull, OPC_BRL_SPTK_MANY_X3 = 0x18000001000ull, OPC_CMP_LT_A6 = 0x18000000000ull, OPC_CMP_LTU_A6 = 0x1a000000000ull, OPC_CMP_EQ_A6 = 0x1c000000000ull, OPC_CMP4_LT_A6 = 0x18400000000ull, OPC_CMP4_LTU_A6 = 0x1a400000000ull, OPC_CMP4_EQ_A6 = 0x1c400000000ull, OPC_DEP_Z_I12 = 0x0a600000000ull, OPC_EXTR_I11 = 0x0a400002000ull, OPC_EXTR_U_I11 = 0x0a400000000ull, OPC_FCVT_FX_TRUNC_S1_F10 = 0x004d0000000ull, OPC_FCVT_FXU_TRUNC_S1_F10 = 0x004d8000000ull, OPC_FCVT_XF_F11 = 0x000e0000000ull, OPC_FMA_S1_F1 = 0x10400000000ull, OPC_FNMA_S1_F1 = 0x18400000000ull, OPC_FRCPA_S1_F6 = 0x00600000000ull, OPC_GETF_SIG_M19 = 0x08708000000ull, OPC_LD1_M1 = 0x08000000000ull, OPC_LD1_M3 = 0x0a000000000ull, OPC_LD2_M1 = 0x08040000000ull, OPC_LD2_M3 = 0x0a040000000ull, OPC_LD4_M1 = 0x08080000000ull, OPC_LD4_M3 = 0x0a080000000ull, OPC_LD8_M1 = 0x080c0000000ull, OPC_LD8_M3 = 0x0a0c0000000ull, OPC_MUX1_I3 = 0x0eca0000000ull, OPC_NOP_B9 = 0x04008000000ull, OPC_NOP_F16 = 0x00008000000ull, OPC_NOP_I18 = 0x00008000000ull, OPC_NOP_M48 = 0x00008000000ull, OPC_MOV_I21 = 0x00e00100000ull, OPC_MOV_RET_I21 = 0x00e00500000ull, OPC_MOV_I22 = 0x00188000000ull, OPC_MOV_I_I26 = 0x00150000000ull, OPC_MOVL_X2 = 0x0c000000000ull, OPC_OR_A1 = 0x10070000000ull, OPC_SETF_EXP_M18 = 0x0c748000000ull, OPC_SETF_SIG_M18 = 0x0c708000000ull, OPC_SHL_I7 = 0x0f240000000ull, OPC_SHR_I5 = 0x0f220000000ull, OPC_SHR_U_I5 = 0x0f200000000ull, OPC_SHRP_I10 = 0x0ac00000000ull, OPC_SXT1_I29 = 0x000a0000000ull, OPC_SXT2_I29 = 0x000a8000000ull, OPC_SXT4_I29 = 0x000b0000000ull, OPC_ST1_M4 = 0x08c00000000ull, OPC_ST2_M4 = 0x08c40000000ull, OPC_ST4_M4 = 0x08c80000000ull, OPC_ST8_M4 = 0x08cc0000000ull, OPC_SUB_A1 = 0x10028000000ull, OPC_SUB_A3 = 0x10128000000ull, OPC_UNPACK4_L_I2 = 0x0f860000000ull, OPC_XMA_L_F2 = 0x1d000000000ull, OPC_XOR_A1 = 0x10078000000ull, OPC_ZXT1_I29 = 0x00080000000ull, OPC_ZXT2_I29 = 0x00088000000ull, OPC_ZXT4_I29 = 0x00090000000ull, }; static inline uint64_t tcg_opc_a1(int qp, uint64_t opc, int r1, int r2, int r3) { return opc | ((r3 & 0x7f) << 20) | ((r2 & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_a3(int qp, uint64_t opc, int r1, uint64_t imm, int r3) { return opc | ((imm & 0x80) << 29) /* s */ | ((imm & 0x7f) << 13) /* imm7b */ | ((r3 & 0x7f) << 20) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_a4(int qp, uint64_t opc, int r1, uint64_t imm, int r3) { return opc | ((imm & 0x2000) << 23) /* s */ | ((imm & 0x1f80) << 20) /* imm6d */ | ((imm & 0x007f) << 13) /* imm7b */ | ((r3 & 0x7f) << 20) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_a5(int qp, uint64_t opc, int r1, uint64_t imm, int r3) { return opc | ((imm & 0x200000) << 15) /* s */ | ((imm & 0x1f0000) << 6) /* imm5c */ | ((imm & 0x00ff80) << 20) /* imm9d */ | ((imm & 0x00007f) << 13) /* imm7b */ | ((r3 & 0x03) << 20) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_a6(int qp, uint64_t opc, int p1, int p2, int r2, int r3) { return opc | ((p2 & 0x3f) << 27) | ((r3 & 0x7f) << 20) | ((r2 & 0x7f) << 13) | ((p1 & 0x3f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_b1(int qp, uint64_t opc, uint64_t imm) { return opc | ((imm & 0x100000) << 16) /* s */ | ((imm & 0x0fffff) << 13) /* imm20b */ | (qp & 0x3f); } static inline uint64_t tcg_opc_b4(int qp, uint64_t opc, int b2) { return opc | ((b2 & 0x7) << 13) | (qp & 0x3f); } static inline uint64_t tcg_opc_b5(int qp, uint64_t opc, int b1, int b2) { return opc | ((b2 & 0x7) << 13) | ((b1 & 0x7) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_b9(int qp, uint64_t opc, uint64_t imm) { return opc | ((imm & 0x100000) << 16) /* i */ | ((imm & 0x0fffff) << 6) /* imm20a */ | (qp & 0x3f); } static inline uint64_t tcg_opc_f1(int qp, uint64_t opc, int f1, int f3, int f4, int f2) { return opc | ((f4 & 0x7f) << 27) | ((f3 & 0x7f) << 20) | ((f2 & 0x7f) << 13) | ((f1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_f2(int qp, uint64_t opc, int f1, int f3, int f4, int f2) { return opc | ((f4 & 0x7f) << 27) | ((f3 & 0x7f) << 20) | ((f2 & 0x7f) << 13) | ((f1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_f6(int qp, uint64_t opc, int f1, int p2, int f2, int f3) { return opc | ((p2 & 0x3f) << 27) | ((f3 & 0x7f) << 20) | ((f2 & 0x7f) << 13) | ((f1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_f10(int qp, uint64_t opc, int f1, int f2) { return opc | ((f2 & 0x7f) << 13) | ((f1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_f11(int qp, uint64_t opc, int f1, int f2) { return opc | ((f2 & 0x7f) << 13) | ((f1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_f16(int qp, uint64_t opc, uint64_t imm) { return opc | ((imm & 0x100000) << 16) /* i */ | ((imm & 0x0fffff) << 6) /* imm20a */ | (qp & 0x3f); } static inline uint64_t tcg_opc_i2(int qp, uint64_t opc, int r1, int r2, int r3) { return opc | ((r3 & 0x7f) << 20) | ((r2 & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i3(int qp, uint64_t opc, int r1, int r2, int mbtype) { return opc | ((mbtype & 0x0f) << 20) | ((r2 & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i5(int qp, uint64_t opc, int r1, int r3, int r2) { return opc | ((r3 & 0x7f) << 20) | ((r2 & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i7(int qp, uint64_t opc, int r1, int r2, int r3) { return opc | ((r3 & 0x7f) << 20) | ((r2 & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i10(int qp, uint64_t opc, int r1, int r2, int r3, uint64_t count) { return opc | ((count & 0x3f) << 27) | ((r3 & 0x7f) << 20) | ((r2 & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i11(int qp, uint64_t opc, int r1, int r3, uint64_t pos, uint64_t len) { return opc | ((len & 0x3f) << 27) | ((r3 & 0x7f) << 20) | ((pos & 0x3f) << 14) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i12(int qp, uint64_t opc, int r1, int r2, uint64_t pos, uint64_t len) { return opc | ((len & 0x3f) << 27) | ((pos & 0x3f) << 20) | ((r2 & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i18(int qp, uint64_t opc, uint64_t imm) { return opc | ((imm & 0x100000) << 16) /* i */ | ((imm & 0x0fffff) << 6) /* imm20a */ | (qp & 0x3f); } static inline uint64_t tcg_opc_i21(int qp, uint64_t opc, int b1, int r2, uint64_t imm) { return opc | ((imm & 0x1ff) << 24) | ((r2 & 0x7f) << 13) | ((b1 & 0x7) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i22(int qp, uint64_t opc, int r1, int b2) { return opc | ((b2 & 0x7) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_i26(int qp, uint64_t opc, int ar3, int r2) { return opc | ((ar3 & 0x7f) << 20) | ((r2 & 0x7f) << 13) | (qp & 0x3f); } static inline uint64_t tcg_opc_i29(int qp, uint64_t opc, int r1, int r3) { return opc | ((r3 & 0x7f) << 20) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_l2(uint64_t imm) { return (imm & 0x7fffffffffc00000ull) >> 22; } static inline uint64_t tcg_opc_l3(uint64_t imm) { return (imm & 0x07fffffffff00000ull) >> 18; } static inline uint64_t tcg_opc_m1(int qp, uint64_t opc, int r1, int r3) { return opc | ((r3 & 0x7f) << 20) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_m3(int qp, uint64_t opc, int r1, int r3, uint64_t imm) { return opc | ((imm & 0x100) << 28) /* s */ | ((imm & 0x080) << 20) /* i */ | ((imm & 0x07f) << 13) /* imm7b */ | ((r3 & 0x7f) << 20) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_m4(int qp, uint64_t opc, int r2, int r3) { return opc | ((r3 & 0x7f) << 20) | ((r2 & 0x7f) << 13) | (qp & 0x3f); } static inline uint64_t tcg_opc_m18(int qp, uint64_t opc, int f1, int r2) { return opc | ((r2 & 0x7f) << 13) | ((f1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_m19(int qp, uint64_t opc, int r1, int f2) { return opc | ((f2 & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_m34(int qp, uint64_t opc, int r1, int sof, int sol, int sor) { return opc | ((sor & 0x0f) << 27) | ((sol & 0x7f) << 20) | ((sof & 0x7f) << 13) | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_m48(int qp, uint64_t opc, uint64_t imm) { return opc | ((imm & 0x100000) << 16) /* i */ | ((imm & 0x0fffff) << 6) /* imm20a */ | (qp & 0x3f); } static inline uint64_t tcg_opc_x2(int qp, uint64_t opc, int r1, uint64_t imm) { return opc | ((imm & 0x8000000000000000ull) >> 27) /* i */ | (imm & 0x0000000000200000ull) /* ic */ | ((imm & 0x00000000001f0000ull) << 6) /* imm5c */ | ((imm & 0x000000000000ff80ull) << 20) /* imm9d */ | ((imm & 0x000000000000007full) << 13) /* imm7b */ | ((r1 & 0x7f) << 6) | (qp & 0x3f); } static inline uint64_t tcg_opc_x3(int qp, uint64_t opc, uint64_t imm) { return opc | ((imm & 0x0800000000000000ull) >> 23) /* i */ | ((imm & 0x00000000000fffffull) << 13) /* imm20b */ | (qp & 0x3f); } /* * Relocations */ static inline void reloc_pcrel21b (void *pc, tcg_target_long target) { uint64_t imm; int64_t disp; int slot; slot = (tcg_target_long) pc & 3; pc = (void *)((tcg_target_long) pc & ~3); disp = target - (tcg_target_long) pc; imm = (uint64_t) disp >> 4; switch(slot) { case 0: *(uint64_t *)(pc + 0) = (*(uint64_t *)(pc + 8) & 0xfffffdc00003ffffull) | ((imm & 0x100000) << 21) /* s */ | ((imm & 0x0fffff) << 18); /* imm20b */ break; case 1: *(uint64_t *)(pc + 8) = (*(uint64_t *)(pc + 8) & 0xfffffffffffb8000ull) | ((imm & 0x100000) >> 2) /* s */ | ((imm & 0x0fffe0) >> 5); /* imm20b */ *(uint64_t *)(pc + 0) = (*(uint64_t *)(pc + 0) & 0x07ffffffffffffffull) | ((imm & 0x00001f) << 59); /* imm20b */ break; case 2: *(uint64_t *)(pc + 8) = (*(uint64_t *)(pc + 8) & 0xf700000fffffffffull) | ((imm & 0x100000) << 39) /* s */ | ((imm & 0x0fffff) << 36); /* imm20b */ break; } } static inline uint64_t get_reloc_pcrel21b (void *pc) { int64_t low, high; int slot; slot = (tcg_target_long) pc & 3; pc = (void *)((tcg_target_long) pc & ~3); low = (*(uint64_t *)(pc + 0)); high = (*(uint64_t *)(pc + 8)); switch(slot) { case 0: return ((low >> 21) & 0x100000) + /* s */ ((low >> 18) & 0x0fffff); /* imm20b */ case 1: return ((high << 2) & 0x100000) + /* s */ ((high << 5) & 0x0fffe0) + /* imm20b */ ((low >> 59) & 0x00001f); /* imm20b */ case 2: return ((high >> 39) & 0x100000) + /* s */ ((high >> 36) & 0x0fffff); /* imm20b */ default: tcg_abort(); } } static inline void reloc_pcrel60b (void *pc, tcg_target_long target) { int64_t disp; uint64_t imm; disp = target - (tcg_target_long) pc; imm = (uint64_t) disp >> 4; *(uint64_t *)(pc + 8) = (*(uint64_t *)(pc + 8) & 0xf700000fff800000ull) | (imm & 0x0800000000000000ull) /* s */ | ((imm & 0x07fffff000000000ull) >> 36) /* imm39 */ | ((imm & 0x00000000000fffffull) << 36); /* imm20b */ *(uint64_t *)(pc + 0) = (*(uint64_t *)(pc + 0) & 0x00003fffffffffffull) | ((imm & 0x0000000ffff00000ull) << 28); /* imm39 */ } static inline uint64_t get_reloc_pcrel60b (void *pc) { int64_t low, high; low = (*(uint64_t *)(pc + 0)); high = (*(uint64_t *)(pc + 8)); return ((high) & 0x0800000000000000ull) + /* s */ ((high >> 36) & 0x00000000000fffffull) + /* imm20b */ ((high << 36) & 0x07fffff000000000ull) + /* imm39 */ ((low >> 28) & 0x0000000ffff00000ull); /* imm39 */ } static void patch_reloc(uint8_t *code_ptr, int type, tcg_target_long value, tcg_target_long addend) { value += addend; switch (type) { case R_IA64_PCREL21B: reloc_pcrel21b(code_ptr, value); break; case R_IA64_PCREL60B: reloc_pcrel60b(code_ptr, value); default: tcg_abort(); } } /* * Constraints */ /* parse target specific constraints */ static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) { const char *ct_str; ct_str = *pct_str; switch(ct_str[0]) { case 'r': ct->ct |= TCG_CT_REG; tcg_regset_set(ct->u.regs, 0xffffffffffffffffull); break; case 'I': ct->ct |= TCG_CT_CONST_S22; break; case 'S': ct->ct |= TCG_CT_REG; tcg_regset_set(ct->u.regs, 0xffffffffffffffffull); #if defined(CONFIG_SOFTMMU) tcg_regset_reset_reg(ct->u.regs, TCG_REG_R56); tcg_regset_reset_reg(ct->u.regs, TCG_REG_R57); #endif break; case 'Z': /* We are cheating a bit here, using the fact that the register r0 is also the register number 0. Hence there is no need to check for const_args in each instruction. */ ct->ct |= TCG_CT_CONST_ZERO; break; default: return -1; } ct_str++; *pct_str = ct_str; return 0; } /* test if a constant matches the constraint */ static inline int tcg_target_const_match(tcg_target_long val, const TCGArgConstraint *arg_ct) { int ct; ct = arg_ct->ct; if (ct & TCG_CT_CONST) return 1; else if ((ct & TCG_CT_CONST_ZERO) && val == 0) return 1; else if ((ct & TCG_CT_CONST_S22) && val == ((int32_t)val << 10) >> 10) return 1; else return 0; } /* * Code generation */ static uint8_t *tb_ret_addr; static inline void tcg_out_bundle(TCGContext *s, int template, uint64_t slot0, uint64_t slot1, uint64_t slot2) { template &= 0x1f; /* 5 bits */ slot0 &= 0x1ffffffffffull; /* 41 bits */ slot1 &= 0x1ffffffffffull; /* 41 bits */ slot2 &= 0x1ffffffffffull; /* 41 bits */ *(uint64_t *)(s->code_ptr + 0) = (slot1 << 46) | (slot0 << 5) | template; *(uint64_t *)(s->code_ptr + 8) = (slot2 << 23) | (slot1 >> 18); s->code_ptr += 16; } static inline void tcg_out_mov(TCGContext *s, TCGType type, TCGArg ret, TCGArg arg) { tcg_out_bundle(s, mmI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a4(TCG_REG_P0, OPC_ADDS_A4, ret, 0, arg)); } static inline void tcg_out_movi(TCGContext *s, TCGType type, TCGArg reg, tcg_target_long arg) { tcg_out_bundle(s, mLX, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_l2 (arg), tcg_opc_x2 (TCG_REG_P0, OPC_MOVL_X2, reg, arg)); } static inline void tcg_out_addi(TCGContext *s, TCGArg reg, tcg_target_long val) { if (val == ((int32_t)val << 10) >> 10) { tcg_out_bundle(s, MmI, tcg_opc_a5(TCG_REG_P0, OPC_ADDL_A5, TCG_REG_R2, val, TCG_REG_R0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, reg, reg, TCG_REG_R2)); } else { tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, val); tcg_out_bundle(s, mmI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, reg, reg, TCG_REG_R2)); } } static void tcg_out_br(TCGContext *s, int label_index) { TCGLabel *l = &s->labels[label_index]; /* We pay attention here to not modify the branch target by reading the existing value and using it again. This ensure that caches and memory are kept coherent during retranslation. */ tcg_out_bundle(s, mmB, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_b1 (TCG_REG_P0, OPC_BR_SPTK_MANY_B1, get_reloc_pcrel21b(s->code_ptr + 2))); if (l->has_value) { reloc_pcrel21b((s->code_ptr - 16) + 2, l->u.value); } else { tcg_out_reloc(s, (s->code_ptr - 16) + 2, R_IA64_PCREL21B, label_index, 0); } } static inline void tcg_out_call(TCGContext *s, TCGArg addr) { tcg_out_bundle(s, MmI, tcg_opc_m1 (TCG_REG_P0, OPC_LD8_M1, TCG_REG_R2, addr), tcg_opc_a4 (TCG_REG_P0, OPC_ADDS_A4, TCG_REG_R3, 8, addr), tcg_opc_i21(TCG_REG_P0, OPC_MOV_I21, TCG_REG_B6, TCG_REG_R2, 0)); tcg_out_bundle(s, mmB, tcg_opc_m1 (TCG_REG_P0, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R3), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_b5 (TCG_REG_P0, OPC_BR_CALL_SPTK_MANY_B5, TCG_REG_B0, TCG_REG_B6)); } static void tcg_out_exit_tb(TCGContext *s, tcg_target_long arg) { int64_t disp; uint64_t imm; tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R8, arg); disp = tb_ret_addr - s->code_ptr; imm = (uint64_t)disp >> 4; tcg_out_bundle(s, mLX, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_l3 (imm), tcg_opc_x3 (TCG_REG_P0, OPC_BRL_SPTK_MANY_X3, imm)); } static inline void tcg_out_goto_tb(TCGContext *s, TCGArg arg) { if (s->tb_jmp_offset) { /* direct jump method */ tcg_abort(); } else { /* indirect jump method */ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, (tcg_target_long)(s->tb_next + arg)); tcg_out_bundle(s, MmI, tcg_opc_m1 (TCG_REG_P0, OPC_LD8_M1, TCG_REG_R2, TCG_REG_R2), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i21(TCG_REG_P0, OPC_MOV_I21, TCG_REG_B6, TCG_REG_R2, 0)); tcg_out_bundle(s, mmB, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_b4 (TCG_REG_P0, OPC_BR_SPTK_MANY_B4, TCG_REG_B6)); } s->tb_next_offset[arg] = s->code_ptr - s->code_buf; } static inline void tcg_out_jmp(TCGContext *s, TCGArg addr) { tcg_out_bundle(s, mmI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i21(TCG_REG_P0, OPC_MOV_I21, TCG_REG_B6, addr, 0)); tcg_out_bundle(s, mmB, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_b4(TCG_REG_P0, OPC_BR_SPTK_MANY_B4, TCG_REG_B6)); } static inline void tcg_out_ld_rel(TCGContext *s, uint64_t opc_m4, TCGArg arg, TCGArg arg1, tcg_target_long arg2) { if (arg2 == ((int16_t)arg2 >> 2) << 2) { tcg_out_bundle(s, MmI, tcg_opc_a4(TCG_REG_P0, OPC_ADDS_A4, TCG_REG_R2, arg2, arg1), tcg_opc_m1 (TCG_REG_P0, opc_m4, arg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } else { tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, arg2); tcg_out_bundle(s, MmI, tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2, TCG_REG_R2, arg1), tcg_opc_m1 (TCG_REG_P0, opc_m4, arg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } } static inline void tcg_out_st_rel(TCGContext *s, uint64_t opc_m4, TCGArg arg, TCGArg arg1, tcg_target_long arg2) { if (arg2 == ((int16_t)arg2 >> 2) << 2) { tcg_out_bundle(s, MmI, tcg_opc_a4(TCG_REG_P0, OPC_ADDS_A4, TCG_REG_R2, arg2, arg1), tcg_opc_m4 (TCG_REG_P0, opc_m4, arg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } else { tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, arg2); tcg_out_bundle(s, MmI, tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2, TCG_REG_R2, arg1), tcg_opc_m4 (TCG_REG_P0, opc_m4, arg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } } static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGArg arg, TCGArg arg1, tcg_target_long arg2) { if (type == TCG_TYPE_I32) { tcg_out_ld_rel(s, OPC_LD4_M1, arg, arg1, arg2); } else { tcg_out_ld_rel(s, OPC_LD8_M1, arg, arg1, arg2); } } static inline void tcg_out_st(TCGContext *s, TCGType type, TCGArg arg, TCGArg arg1, tcg_target_long arg2) { if (type == TCG_TYPE_I32) { tcg_out_st_rel(s, OPC_ST4_M4, arg, arg1, arg2); } else { tcg_out_st_rel(s, OPC_ST8_M4, arg, arg1, arg2); } } static inline void tcg_out_alu(TCGContext *s, uint64_t opc_a1, TCGArg ret, TCGArg arg1, int const_arg1, TCGArg arg2, int const_arg2) { uint64_t opc1, opc2; if (const_arg1 && arg1 != 0) { opc1 = tcg_opc_a5(TCG_REG_P0, OPC_ADDL_A5, TCG_REG_R2, arg1, TCG_REG_R0); arg1 = TCG_REG_R2; } else { opc1 = tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0); } if (const_arg2 && arg2 != 0) { opc2 = tcg_opc_a5(TCG_REG_P0, OPC_ADDL_A5, TCG_REG_R3, arg2, TCG_REG_R0); arg2 = TCG_REG_R3; } else { opc2 = tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0); } tcg_out_bundle(s, mII, opc1, opc2, tcg_opc_a1(TCG_REG_P0, opc_a1, ret, arg1, arg2)); } static inline void tcg_out_eqv(TCGContext *s, TCGArg ret, TCGArg arg1, int const_arg1, TCGArg arg2, int const_arg2) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a1 (TCG_REG_P0, OPC_XOR_A1, ret, arg1, arg2), tcg_opc_a3 (TCG_REG_P0, OPC_ANDCM_A3, ret, -1, ret)); } static inline void tcg_out_nand(TCGContext *s, TCGArg ret, TCGArg arg1, int const_arg1, TCGArg arg2, int const_arg2) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a1 (TCG_REG_P0, OPC_AND_A1, ret, arg1, arg2), tcg_opc_a3 (TCG_REG_P0, OPC_ANDCM_A3, ret, -1, ret)); } static inline void tcg_out_nor(TCGContext *s, TCGArg ret, TCGArg arg1, int const_arg1, TCGArg arg2, int const_arg2) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a1 (TCG_REG_P0, OPC_OR_A1, ret, arg1, arg2), tcg_opc_a3 (TCG_REG_P0, OPC_ANDCM_A3, ret, -1, ret)); } static inline void tcg_out_orc(TCGContext *s, TCGArg ret, TCGArg arg1, int const_arg1, TCGArg arg2, int const_arg2) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a3 (TCG_REG_P0, OPC_ANDCM_A3, TCG_REG_R2, -1, arg2), tcg_opc_a1 (TCG_REG_P0, OPC_OR_A1, ret, arg1, TCG_REG_R2)); } static inline void tcg_out_mul(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2) { tcg_out_bundle(s, mmI, tcg_opc_m18(TCG_REG_P0, OPC_SETF_SIG_M18, TCG_REG_F6, arg1), tcg_opc_m18(TCG_REG_P0, OPC_SETF_SIG_M18, TCG_REG_F7, arg2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); tcg_out_bundle(s, mmF, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_f2 (TCG_REG_P0, OPC_XMA_L_F2, TCG_REG_F6, TCG_REG_F6, TCG_REG_F7, TCG_REG_F0)); tcg_out_bundle(s, miI, tcg_opc_m19(TCG_REG_P0, OPC_GETF_SIG_M19, ret, TCG_REG_F6), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } static inline void tcg_out_sar_i32(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i11(TCG_REG_P0, OPC_EXTR_I11, ret, arg1, arg2, 31 - arg2)); } else { tcg_out_bundle(s, mII, tcg_opc_a3 (TCG_REG_P0, OPC_AND_A3, TCG_REG_R3, 0x1f, arg2), tcg_opc_i29(TCG_REG_P0, OPC_SXT4_I29, TCG_REG_R2, arg1), tcg_opc_i5 (TCG_REG_P0, OPC_SHR_I5, ret, TCG_REG_R2, TCG_REG_R3)); } } static inline void tcg_out_sar_i64(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i11(TCG_REG_P0, OPC_EXTR_I11, ret, arg1, arg2, 63 - arg2)); } else { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i5 (TCG_REG_P0, OPC_SHR_I5, ret, arg1, arg2)); } } static inline void tcg_out_shl_i32(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, ret, arg1, 63 - arg2, 31 - arg2)); } else { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a3 (TCG_REG_P0, OPC_AND_A3, TCG_REG_R2, 0x1f, arg2), tcg_opc_i7 (TCG_REG_P0, OPC_SHL_I7, ret, arg1, TCG_REG_R2)); } } static inline void tcg_out_shl_i64(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, ret, arg1, 63 - arg2, 63 - arg2)); } else { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i7 (TCG_REG_P0, OPC_SHL_I7, ret, arg1, arg2)); } } static inline void tcg_out_shr_i32(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i11(TCG_REG_P0, OPC_EXTR_U_I11, ret, arg1, arg2, 31 - arg2)); } else { tcg_out_bundle(s, mII, tcg_opc_a3 (TCG_REG_P0, OPC_AND_A3, TCG_REG_R3, 0x1f, arg2), tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29, TCG_REG_R2, arg1), tcg_opc_i5 (TCG_REG_P0, OPC_SHR_U_I5, ret, TCG_REG_R2, TCG_REG_R3)); } } static inline void tcg_out_shr_i64(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i11(TCG_REG_P0, OPC_EXTR_U_I11, ret, arg1, arg2, 63 - arg2)); } else { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i5 (TCG_REG_P0, OPC_SHR_U_I5, ret, arg1, arg2)); } } static inline void tcg_out_rotl_i32(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i2 (TCG_REG_P0, OPC_UNPACK4_L_I2, TCG_REG_R2, arg1, arg1), tcg_opc_i11(TCG_REG_P0, OPC_EXTR_U_I11, ret, TCG_REG_R2, 32 - arg2, 31)); } else { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i2 (TCG_REG_P0, OPC_UNPACK4_L_I2, TCG_REG_R2, arg1, arg1), tcg_opc_a3 (TCG_REG_P0, OPC_AND_A3, TCG_REG_R3, 0x1f, arg2)); tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a3 (TCG_REG_P0, OPC_SUB_A3, TCG_REG_R3, 0x20, TCG_REG_R3), tcg_opc_i5 (TCG_REG_P0, OPC_SHR_U_I5, ret, TCG_REG_R2, TCG_REG_R3)); } } static inline void tcg_out_rotl_i64(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i10(TCG_REG_P0, OPC_SHRP_I10, ret, arg1, arg1, 0x40 - arg2)); } else { tcg_out_bundle(s, mII, tcg_opc_a3 (TCG_REG_P0, OPC_SUB_A3, TCG_REG_R2, 0x40, arg2), tcg_opc_i7 (TCG_REG_P0, OPC_SHL_I7, TCG_REG_R3, arg1, arg2), tcg_opc_i5 (TCG_REG_P0, OPC_SHR_U_I5, TCG_REG_R2, arg1, TCG_REG_R2)); tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_a1 (TCG_REG_P0, OPC_OR_A1, ret, TCG_REG_R2, TCG_REG_R3)); } } static inline void tcg_out_rotr_i32(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i2 (TCG_REG_P0, OPC_UNPACK4_L_I2, TCG_REG_R2, arg1, arg1), tcg_opc_i11(TCG_REG_P0, OPC_EXTR_U_I11, ret, TCG_REG_R2, arg2, 31)); } else { tcg_out_bundle(s, mII, tcg_opc_a3 (TCG_REG_P0, OPC_AND_A3, TCG_REG_R3, 0x1f, arg2), tcg_opc_i2 (TCG_REG_P0, OPC_UNPACK4_L_I2, TCG_REG_R2, arg1, arg1), tcg_opc_i5 (TCG_REG_P0, OPC_SHR_U_I5, ret, TCG_REG_R2, TCG_REG_R3)); } } static inline void tcg_out_rotr_i64(TCGContext *s, TCGArg ret, TCGArg arg1, TCGArg arg2, int const_arg2) { if (const_arg2) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i10(TCG_REG_P0, OPC_SHRP_I10, ret, arg1, arg1, arg2)); } else { tcg_out_bundle(s, mII, tcg_opc_a3 (TCG_REG_P0, OPC_SUB_A3, TCG_REG_R2, 0x40, arg2), tcg_opc_i5 (TCG_REG_P0, OPC_SHR_U_I5, TCG_REG_R3, arg1, arg2), tcg_opc_i7 (TCG_REG_P0, OPC_SHL_I7, TCG_REG_R2, arg1, TCG_REG_R2)); tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_a1 (TCG_REG_P0, OPC_OR_A1, ret, TCG_REG_R2, TCG_REG_R3)); } } static inline void tcg_out_ext(TCGContext *s, uint64_t opc_i29, TCGArg ret, TCGArg arg) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i29(TCG_REG_P0, opc_i29, ret, arg)); } static inline void tcg_out_bswap16(TCGContext *s, TCGArg ret, TCGArg arg) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, ret, arg, 15, 15), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, ret, ret, 0xb)); } static inline void tcg_out_bswap32(TCGContext *s, TCGArg ret, TCGArg arg) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, ret, arg, 31, 31), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, ret, ret, 0xb)); } static inline void tcg_out_bswap64(TCGContext *s, TCGArg ret, TCGArg arg) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, ret, arg, 0xb)); } static inline uint64_t tcg_opc_cmp_a(int qp, TCGCond cond, TCGArg arg1, TCGArg arg2, int cmp4) { uint64_t opc_eq_a6, opc_lt_a6, opc_ltu_a6; if (cmp4) { opc_eq_a6 = OPC_CMP4_EQ_A6; opc_lt_a6 = OPC_CMP4_LT_A6; opc_ltu_a6 = OPC_CMP4_LTU_A6; } else { opc_eq_a6 = OPC_CMP_EQ_A6; opc_lt_a6 = OPC_CMP_LT_A6; opc_ltu_a6 = OPC_CMP_LTU_A6; } switch (cond) { case TCG_COND_EQ: return tcg_opc_a6 (qp, opc_eq_a6, TCG_REG_P6, TCG_REG_P7, arg1, arg2); case TCG_COND_NE: return tcg_opc_a6 (qp, opc_eq_a6, TCG_REG_P7, TCG_REG_P6, arg1, arg2); case TCG_COND_LT: return tcg_opc_a6 (qp, opc_lt_a6, TCG_REG_P6, TCG_REG_P7, arg1, arg2); case TCG_COND_LTU: return tcg_opc_a6 (qp, opc_ltu_a6, TCG_REG_P6, TCG_REG_P7, arg1, arg2); case TCG_COND_GE: return tcg_opc_a6 (qp, opc_lt_a6, TCG_REG_P7, TCG_REG_P6, arg1, arg2); case TCG_COND_GEU: return tcg_opc_a6 (qp, opc_ltu_a6, TCG_REG_P7, TCG_REG_P6, arg1, arg2); case TCG_COND_LE: return tcg_opc_a6 (qp, opc_lt_a6, TCG_REG_P7, TCG_REG_P6, arg2, arg1); case TCG_COND_LEU: return tcg_opc_a6 (qp, opc_ltu_a6, TCG_REG_P7, TCG_REG_P6, arg2, arg1); case TCG_COND_GT: return tcg_opc_a6 (qp, opc_lt_a6, TCG_REG_P6, TCG_REG_P7, arg2, arg1); case TCG_COND_GTU: return tcg_opc_a6 (qp, opc_ltu_a6, TCG_REG_P6, TCG_REG_P7, arg2, arg1); default: tcg_abort(); break; } } static inline void tcg_out_brcond(TCGContext *s, TCGCond cond, TCGArg arg1, int const_arg1, TCGArg arg2, int const_arg2, int label_index, int cmp4) { TCGLabel *l = &s->labels[label_index]; uint64_t opc1, opc2; if (const_arg1 && arg1 != 0) { opc1 = tcg_opc_a5(TCG_REG_P0, OPC_ADDL_A5, TCG_REG_R2, arg1, TCG_REG_R0); arg1 = TCG_REG_R2; } else { opc1 = tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0); } if (const_arg2 && arg2 != 0) { opc2 = tcg_opc_a5(TCG_REG_P0, OPC_ADDL_A5, TCG_REG_R3, arg2, TCG_REG_R0); arg2 = TCG_REG_R3; } else { opc2 = tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0); } tcg_out_bundle(s, mII, opc1, opc2, tcg_opc_cmp_a(TCG_REG_P0, cond, arg1, arg2, cmp4)); tcg_out_bundle(s, mmB, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_b1 (TCG_REG_P6, OPC_BR_DPTK_FEW_B1, get_reloc_pcrel21b(s->code_ptr + 2))); if (l->has_value) { reloc_pcrel21b((s->code_ptr - 16) + 2, l->u.value); } else { tcg_out_reloc(s, (s->code_ptr - 16) + 2, R_IA64_PCREL21B, label_index, 0); } } static inline void tcg_out_setcond(TCGContext *s, TCGCond cond, TCGArg ret, TCGArg arg1, TCGArg arg2, int cmp4) { tcg_out_bundle(s, MmI, tcg_opc_cmp_a(TCG_REG_P0, cond, arg1, arg2, cmp4), tcg_opc_a5(TCG_REG_P6, OPC_ADDL_A5, ret, 1, TCG_REG_R0), tcg_opc_a5(TCG_REG_P7, OPC_ADDL_A5, ret, 0, TCG_REG_R0)); } #if defined(CONFIG_SOFTMMU) #include "../../softmmu_defs.h" /* Load and compare a TLB entry, and return the result in (p6, p7). R2 is loaded with the address of the addend TLB entry. R56 is loaded with the address, zero extented on 32-bit targets. */ static inline void tcg_out_qemu_tlb(TCGContext *s, TCGArg addr_reg, int s_bits, uint64_t offset_rw, uint64_t offset_addend) { tcg_out_bundle(s, mII, tcg_opc_a5 (TCG_REG_P0, OPC_ADDL_A5, TCG_REG_R3, TARGET_PAGE_MASK | ((1 << s_bits) - 1), TCG_REG_R0), tcg_opc_i11(TCG_REG_P0, OPC_EXTR_U_I11, TCG_REG_R2, addr_reg, TARGET_PAGE_BITS, CPU_TLB_BITS - 1), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, TCG_REG_R2, TCG_REG_R2, 63 - CPU_TLB_ENTRY_BITS, 63 - CPU_TLB_ENTRY_BITS)); tcg_out_bundle(s, mII, tcg_opc_a5 (TCG_REG_P0, OPC_ADDL_A5, TCG_REG_R2, offset_rw, TCG_REG_R2), #if TARGET_LONG_BITS == 32 tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29, TCG_REG_R56, addr_reg), #else tcg_opc_a4(TCG_REG_P0, OPC_ADDS_A4, TCG_REG_R56, 0, addr_reg), #endif tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2, TCG_REG_R2, TCG_AREG0)); tcg_out_bundle(s, mII, tcg_opc_m3 (TCG_REG_P0, (TARGET_LONG_BITS == 32 ? OPC_LD4_M3 : OPC_LD8_M3), TCG_REG_R57, TCG_REG_R2, offset_addend - offset_rw), tcg_opc_a1 (TCG_REG_P0, OPC_AND_A1, TCG_REG_R3, TCG_REG_R3, TCG_REG_R56), tcg_opc_a6 (TCG_REG_P0, OPC_CMP_EQ_A6, TCG_REG_P6, TCG_REG_P7, TCG_REG_R3, TCG_REG_R57)); } static void *qemu_ld_helpers[4] = { __ldb_mmu, __ldw_mmu, __ldl_mmu, __ldq_mmu, }; static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) { int addr_reg, data_reg, mem_index, s_bits, bswap; uint64_t opc_ld_m1[4] = { OPC_LD1_M1, OPC_LD2_M1, OPC_LD4_M1, OPC_LD8_M1 }; uint64_t opc_ext_i29[8] = { OPC_ZXT1_I29, OPC_ZXT2_I29, OPC_ZXT4_I29, 0, OPC_SXT1_I29, OPC_SXT2_I29, OPC_SXT4_I29, 0 }; data_reg = *args++; addr_reg = *args++; mem_index = *args; s_bits = opc & 3; #ifdef TARGET_WORDS_BIGENDIAN bswap = 1; #else bswap = 0; #endif /* Read the TLB entry */ tcg_out_qemu_tlb(s, addr_reg, s_bits, offsetof(CPUState, tlb_table[mem_index][0].addr_read), offsetof(CPUState, tlb_table[mem_index][0].addend)); /* P6 is the fast path, and P7 the slow path */ tcg_out_bundle(s, mLX, tcg_opc_a5 (TCG_REG_P7, OPC_ADDL_A5, TCG_REG_R57, mem_index, TCG_REG_R0), tcg_opc_l2 ((tcg_target_long) qemu_ld_helpers[s_bits]), tcg_opc_x2 (TCG_REG_P7, OPC_MOVL_X2, TCG_REG_R2, (tcg_target_long) qemu_ld_helpers[s_bits])); tcg_out_bundle(s, MmI, tcg_opc_m3 (TCG_REG_P0, OPC_LD8_M3, TCG_REG_R3, TCG_REG_R2, 8), tcg_opc_a1 (TCG_REG_P6, OPC_ADD_A1, TCG_REG_R3, TCG_REG_R3, TCG_REG_R56), tcg_opc_i21(TCG_REG_P7, OPC_MOV_I21, TCG_REG_B6, TCG_REG_R3, 0)); if (bswap && s_bits == 1) { tcg_out_bundle(s, MmI, tcg_opc_m1 (TCG_REG_P6, opc_ld_m1[s_bits], TCG_REG_R8, TCG_REG_R3), tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), tcg_opc_i12(TCG_REG_P6, OPC_DEP_Z_I12, TCG_REG_R8, TCG_REG_R8, 15, 15)); } else if (bswap && s_bits == 2) { tcg_out_bundle(s, MmI, tcg_opc_m1 (TCG_REG_P6, opc_ld_m1[s_bits], TCG_REG_R8, TCG_REG_R3), tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), tcg_opc_i12(TCG_REG_P6, OPC_DEP_Z_I12, TCG_REG_R8, TCG_REG_R8, 31, 31)); } else { tcg_out_bundle(s, mmI, tcg_opc_m1 (TCG_REG_P6, opc_ld_m1[s_bits], TCG_REG_R8, TCG_REG_R3), tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } if (!bswap || s_bits == 0) { tcg_out_bundle(s, miB, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_b5 (TCG_REG_P7, OPC_BR_CALL_SPTK_MANY_B5, TCG_REG_B0, TCG_REG_B6)); } else { tcg_out_bundle(s, miB, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i3 (TCG_REG_P6, OPC_MUX1_I3, TCG_REG_R8, TCG_REG_R8, 0xb), tcg_opc_b5 (TCG_REG_P7, OPC_BR_CALL_SPTK_MANY_B5, TCG_REG_B0, TCG_REG_B6)); } if (opc == 3) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_a4 (TCG_REG_P0, OPC_ADDS_A4, data_reg, 0, TCG_REG_R8)); } else { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i29(TCG_REG_P0, opc_ext_i29[opc], data_reg, TCG_REG_R8)); } } static void *qemu_st_helpers[4] = { __stb_mmu, __stw_mmu, __stl_mmu, __stq_mmu, }; static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) { int addr_reg, data_reg, mem_index, bswap; uint64_t opc_st_m4[4] = { OPC_ST1_M4, OPC_ST2_M4, OPC_ST4_M4, OPC_ST8_M4 }; data_reg = *args++; addr_reg = *args++; mem_index = *args; #ifdef TARGET_WORDS_BIGENDIAN bswap = 1; #else bswap = 0; #endif tcg_out_qemu_tlb(s, addr_reg, opc, offsetof(CPUState, tlb_table[mem_index][0].addr_write), offsetof(CPUState, tlb_table[mem_index][0].addend)); /* P6 is the fast path, and P7 the slow path */ tcg_out_bundle(s, mLX, tcg_opc_a4(TCG_REG_P7, OPC_ADDS_A4, TCG_REG_R57, 0, data_reg), tcg_opc_l2 ((tcg_target_long) qemu_st_helpers[opc]), tcg_opc_x2 (TCG_REG_P7, OPC_MOVL_X2, TCG_REG_R2, (tcg_target_long) qemu_st_helpers[opc])); tcg_out_bundle(s, MmI, tcg_opc_m3 (TCG_REG_P0, OPC_LD8_M3, TCG_REG_R3, TCG_REG_R2, 8), tcg_opc_a1 (TCG_REG_P6, OPC_ADD_A1, TCG_REG_R3, TCG_REG_R3, TCG_REG_R56), tcg_opc_i21(TCG_REG_P7, OPC_MOV_I21, TCG_REG_B6, TCG_REG_R3, 0)); if (!bswap || opc == 0) { tcg_out_bundle(s, mII, tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } else if (opc == 1) { tcg_out_bundle(s, mII, tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), tcg_opc_i12(TCG_REG_P6, OPC_DEP_Z_I12, TCG_REG_R2, data_reg, 15, 15), tcg_opc_i3 (TCG_REG_P6, OPC_MUX1_I3, TCG_REG_R2, TCG_REG_R2, 0xb)); data_reg = TCG_REG_R2; } else if (opc == 2) { tcg_out_bundle(s, mII, tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), tcg_opc_i12(TCG_REG_P6, OPC_DEP_Z_I12, TCG_REG_R2, data_reg, 31, 31), tcg_opc_i3 (TCG_REG_P6, OPC_MUX1_I3, TCG_REG_R2, TCG_REG_R2, 0xb)); data_reg = TCG_REG_R2; } else if (opc == 3) { tcg_out_bundle(s, miI, tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i3 (TCG_REG_P6, OPC_MUX1_I3, TCG_REG_R2, data_reg, 0xb)); data_reg = TCG_REG_R2; } tcg_out_bundle(s, miB, tcg_opc_m4 (TCG_REG_P6, opc_st_m4[opc], data_reg, TCG_REG_R3), tcg_opc_a5 (TCG_REG_P7, OPC_ADDL_A5, TCG_REG_R58, mem_index, TCG_REG_R0), tcg_opc_b5 (TCG_REG_P7, OPC_BR_CALL_SPTK_MANY_B5, TCG_REG_B0, TCG_REG_B6)); } #else /* !CONFIG_SOFTMMU */ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) { static uint64_t const opc_ld_m1[4] = { OPC_LD1_M1, OPC_LD2_M1, OPC_LD4_M1, OPC_LD8_M1 }; static uint64_t const opc_sxt_i29[4] = { OPC_SXT1_I29, OPC_SXT2_I29, OPC_SXT4_I29, 0 }; int addr_reg, data_reg, s_bits, bswap; data_reg = *args++; addr_reg = *args++; s_bits = opc & 3; #ifdef TARGET_WORDS_BIGENDIAN bswap = 1; #else bswap = 0; #endif #if TARGET_LONG_BITS == 32 if (GUEST_BASE != 0) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29, TCG_REG_R3, addr_reg), tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2, TCG_GUEST_BASE_REG, TCG_REG_R3)); } else { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29, TCG_REG_R2, addr_reg), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } if (!bswap || s_bits == 0) { if (s_bits == opc) { tcg_out_bundle(s, miI, tcg_opc_m1 (TCG_REG_P0, opc_ld_m1[s_bits], data_reg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } else { tcg_out_bundle(s, mII, tcg_opc_m1 (TCG_REG_P0, opc_ld_m1[s_bits], data_reg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i29(TCG_REG_P0, opc_sxt_i29[s_bits], data_reg, data_reg)); } } else if (s_bits == 3) { tcg_out_bundle(s, mII, tcg_opc_m1 (TCG_REG_P0, opc_ld_m1[s_bits], data_reg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, data_reg, data_reg, 0xb)); } else { if (s_bits == 1) { tcg_out_bundle(s, mII, tcg_opc_m1 (TCG_REG_P0, opc_ld_m1[s_bits], data_reg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, data_reg, data_reg, 15, 15)); } else { tcg_out_bundle(s, mII, tcg_opc_m1 (TCG_REG_P0, opc_ld_m1[s_bits], data_reg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, data_reg, data_reg, 31, 31)); } if (opc == s_bits) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, data_reg, data_reg, 0xb)); } else { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, data_reg, data_reg, 0xb), tcg_opc_i29(TCG_REG_P0, opc_sxt_i29[s_bits], data_reg, data_reg)); } } #else if (GUEST_BASE != 0) { tcg_out_bundle(s, MmI, tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2, TCG_GUEST_BASE_REG, addr_reg), tcg_opc_m1 (TCG_REG_P0, opc_ld_m1[s_bits], data_reg, TCG_REG_R2), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } else { tcg_out_bundle(s, mmI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_m1 (TCG_REG_P0, opc_ld_m1[s_bits], data_reg, addr_reg), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } if (bswap && s_bits == 1) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, data_reg, data_reg, 15, 15), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, data_reg, data_reg, 0xb)); } else if (bswap && s_bits == 2) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, data_reg, data_reg, 31, 31), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, data_reg, data_reg, 0xb)); } else if (bswap && s_bits == 3) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, data_reg, data_reg, 0xb)); } if (s_bits != opc) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i29(TCG_REG_P0, opc_sxt_i29[s_bits], data_reg, data_reg)); } #endif } static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) { static uint64_t const opc_st_m4[4] = { OPC_ST1_M4, OPC_ST2_M4, OPC_ST4_M4, OPC_ST8_M4 }; int addr_reg, data_reg, bswap; #if TARGET_LONG_BITS == 64 uint64_t add_guest_base; #endif data_reg = *args++; addr_reg = *args++; #ifdef TARGET_WORDS_BIGENDIAN bswap = 1; #else bswap = 0; #endif #if TARGET_LONG_BITS == 32 if (GUEST_BASE != 0) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29, TCG_REG_R3, addr_reg), tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2, TCG_GUEST_BASE_REG, TCG_REG_R3)); } else { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29, TCG_REG_R2, addr_reg), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } if (bswap) { if (opc == 1) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, TCG_REG_R3, data_reg, 15, 15), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, TCG_REG_R3, TCG_REG_R3, 0xb)); data_reg = TCG_REG_R3; } else if (opc == 2) { tcg_out_bundle(s, mII, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, TCG_REG_R3, data_reg, 31, 31), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, TCG_REG_R3, TCG_REG_R3, 0xb)); data_reg = TCG_REG_R3; } else if (opc == 3) { tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, TCG_REG_R3, data_reg, 0xb)); data_reg = TCG_REG_R3; } } tcg_out_bundle(s, mmI, tcg_opc_m4 (TCG_REG_P0, opc_st_m4[opc], data_reg, TCG_REG_R2), tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); #else if (GUEST_BASE != 0) { add_guest_base = tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2, TCG_GUEST_BASE_REG, addr_reg); addr_reg = TCG_REG_R2; } else { add_guest_base = tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0); } if (!bswap || opc == 0) { tcg_out_bundle(s, (GUEST_BASE ? MmI : mmI), add_guest_base, tcg_opc_m4 (TCG_REG_P0, opc_st_m4[opc], data_reg, addr_reg), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } else { if (opc == 1) { tcg_out_bundle(s, mII, add_guest_base, tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, TCG_REG_R3, data_reg, 15, 15), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, TCG_REG_R3, TCG_REG_R3, 0xb)); data_reg = TCG_REG_R3; } else if (opc == 2) { tcg_out_bundle(s, mII, add_guest_base, tcg_opc_i12(TCG_REG_P0, OPC_DEP_Z_I12, TCG_REG_R3, data_reg, 31, 31), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, TCG_REG_R3, TCG_REG_R3, 0xb)); data_reg = TCG_REG_R3; } else if (opc == 3) { tcg_out_bundle(s, miI, add_guest_base, tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i3 (TCG_REG_P0, OPC_MUX1_I3, TCG_REG_R3, data_reg, 0xb)); data_reg = TCG_REG_R3; } tcg_out_bundle(s, miI, tcg_opc_m4 (TCG_REG_P0, opc_st_m4[opc], data_reg, addr_reg), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0), tcg_opc_i18(TCG_REG_P0, OPC_NOP_I18, 0)); } #endif } #endif static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, const int *const_args) { switch(opc) { case INDEX_op_exit_tb: tcg_out_exit_tb(s, args[0]); break; case INDEX_op_br: tcg_out_br(s, args[0]); break; case INDEX_op_call: tcg_out_call(s, args[0]); break; case INDEX_op_goto_tb: tcg_out_goto_tb(s, args[0]); break; case INDEX_op_jmp: tcg_out_jmp(s, 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_ld_rel(s, OPC_LD1_M1, args[0], args[1], args[2]); break; case INDEX_op_ld8s_i32: case INDEX_op_ld8s_i64: tcg_out_ld_rel(s, OPC_LD1_M1, args[0], args[1], args[2]); tcg_out_ext(s, OPC_SXT1_I29, args[0], args[0]); break; case INDEX_op_ld16u_i32: case INDEX_op_ld16u_i64: tcg_out_ld_rel(s, OPC_LD2_M1, args[0], args[1], args[2]); break; case INDEX_op_ld16s_i32: case INDEX_op_ld16s_i64: tcg_out_ld_rel(s, OPC_LD2_M1, args[0], args[1], args[2]); tcg_out_ext(s, OPC_SXT2_I29, args[0], args[0]); break; case INDEX_op_ld_i32: case INDEX_op_ld32u_i64: tcg_out_ld_rel(s, OPC_LD4_M1, args[0], args[1], args[2]); break; case INDEX_op_ld32s_i64: tcg_out_ld_rel(s, OPC_LD4_M1, args[0], args[1], args[2]); tcg_out_ext(s, OPC_SXT4_I29, args[0], args[0]); break; case INDEX_op_ld_i64: tcg_out_ld_rel(s, OPC_LD8_M1, args[0], args[1], args[2]); break; case INDEX_op_st8_i32: case INDEX_op_st8_i64: tcg_out_st_rel(s, OPC_ST1_M4, args[0], args[1], args[2]); break; case INDEX_op_st16_i32: case INDEX_op_st16_i64: tcg_out_st_rel(s, OPC_ST2_M4, args[0], args[1], args[2]); break; case INDEX_op_st_i32: case INDEX_op_st32_i64: tcg_out_st_rel(s, OPC_ST4_M4, args[0], args[1], args[2]); break; case INDEX_op_st_i64: tcg_out_st_rel(s, OPC_ST8_M4, args[0], args[1], args[2]); break; case INDEX_op_add_i32: case INDEX_op_add_i64: tcg_out_alu(s, OPC_ADD_A1, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_sub_i32: case INDEX_op_sub_i64: tcg_out_alu(s, OPC_SUB_A1, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_and_i32: case INDEX_op_and_i64: tcg_out_alu(s, OPC_AND_A1, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_andc_i32: case INDEX_op_andc_i64: tcg_out_alu(s, OPC_ANDCM_A1, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_eqv_i32: case INDEX_op_eqv_i64: tcg_out_eqv(s, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_nand_i32: case INDEX_op_nand_i64: tcg_out_nand(s, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_nor_i32: case INDEX_op_nor_i64: tcg_out_nor(s, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_or_i32: case INDEX_op_or_i64: tcg_out_alu(s, OPC_OR_A1, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_orc_i32: case INDEX_op_orc_i64: tcg_out_orc(s, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_xor_i32: case INDEX_op_xor_i64: tcg_out_alu(s, OPC_XOR_A1, args[0], args[1], const_args[1], args[2], const_args[2]); break; case INDEX_op_mul_i32: case INDEX_op_mul_i64: tcg_out_mul(s, args[0], args[1], args[2]); break; case INDEX_op_sar_i32: tcg_out_sar_i32(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_sar_i64: tcg_out_sar_i64(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_shl_i32: tcg_out_shl_i32(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_shl_i64: tcg_out_shl_i64(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_shr_i32: tcg_out_shr_i32(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_shr_i64: tcg_out_shr_i64(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_rotl_i32: tcg_out_rotl_i32(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_rotl_i64: tcg_out_rotl_i64(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_rotr_i32: tcg_out_rotr_i32(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_rotr_i64: tcg_out_rotr_i64(s, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_ext8s_i32: case INDEX_op_ext8s_i64: tcg_out_ext(s, OPC_SXT1_I29, args[0], args[1]); break; case INDEX_op_ext8u_i32: case INDEX_op_ext8u_i64: tcg_out_ext(s, OPC_ZXT1_I29, args[0], args[1]); break; case INDEX_op_ext16s_i32: case INDEX_op_ext16s_i64: tcg_out_ext(s, OPC_SXT2_I29, args[0], args[1]); break; case INDEX_op_ext16u_i32: case INDEX_op_ext16u_i64: tcg_out_ext(s, OPC_ZXT2_I29, args[0], args[1]); break; case INDEX_op_ext32s_i64: tcg_out_ext(s, OPC_SXT4_I29, args[0], args[1]); break; case INDEX_op_ext32u_i64: tcg_out_ext(s, OPC_ZXT4_I29, args[0], args[1]); break; case INDEX_op_bswap16_i32: case INDEX_op_bswap16_i64: tcg_out_bswap16(s, args[0], args[1]); break; case INDEX_op_bswap32_i32: case INDEX_op_bswap32_i64: tcg_out_bswap32(s, args[0], args[1]); break; case INDEX_op_bswap64_i64: tcg_out_bswap64(s, args[0], args[1]); break; case INDEX_op_brcond_i32: tcg_out_brcond(s, args[2], args[0], const_args[0], args[1], const_args[1], args[3], 1); break; case INDEX_op_brcond_i64: tcg_out_brcond(s, args[2], args[0], const_args[0], args[1], const_args[1], args[3], 0); break; case INDEX_op_setcond_i32: tcg_out_setcond(s, args[3], args[0], args[1], args[2], 1); break; case INDEX_op_setcond_i64: tcg_out_setcond(s, args[3], args[0], args[1], args[2], 0); 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; default: tcg_abort(); } } static const TCGTargetOpDef ia64_op_defs[] = { { INDEX_op_br, { } }, { INDEX_op_call, { "r" } }, { INDEX_op_exit_tb, { } }, { INDEX_op_goto_tb, { } }, { INDEX_op_jmp, { "r" } }, { INDEX_op_mov_i32, { "r", "r" } }, { INDEX_op_movi_i32, { "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_st8_i32, { "rZ", "r" } }, { INDEX_op_st16_i32, { "rZ", "r" } }, { INDEX_op_st_i32, { "rZ", "r" } }, { INDEX_op_add_i32, { "r", "rI", "rI" } }, { INDEX_op_sub_i32, { "r", "rI", "rI" } }, { INDEX_op_and_i32, { "r", "rI", "rI" } }, { INDEX_op_andc_i32, { "r", "rI", "rI" } }, { INDEX_op_eqv_i32, { "r", "rZ", "rZ" } }, { INDEX_op_nand_i32, { "r", "rZ", "rZ" } }, { INDEX_op_nor_i32, { "r", "rZ", "rZ" } }, { INDEX_op_or_i32, { "r", "rI", "rI" } }, { INDEX_op_orc_i32, { "r", "rZ", "rZ" } }, { INDEX_op_xor_i32, { "r", "rI", "rI" } }, { INDEX_op_mul_i32, { "r", "rZ", "rZ" } }, { INDEX_op_sar_i32, { "r", "rZ", "ri" } }, { INDEX_op_shl_i32, { "r", "rZ", "ri" } }, { INDEX_op_shr_i32, { "r", "rZ", "ri" } }, { INDEX_op_rotl_i32, { "r", "rZ", "ri" } }, { INDEX_op_rotr_i32, { "r", "rZ", "ri" } }, { INDEX_op_ext8s_i32, { "r", "rZ"} }, { INDEX_op_ext8u_i32, { "r", "rZ"} }, { INDEX_op_ext16s_i32, { "r", "rZ"} }, { INDEX_op_ext16u_i32, { "r", "rZ"} }, { INDEX_op_bswap16_i32, { "r", "rZ" } }, { INDEX_op_bswap32_i32, { "r", "rZ" } }, { INDEX_op_brcond_i32, { "rI", "rI" } }, { INDEX_op_setcond_i32, { "r", "rZ", "rZ" } }, { INDEX_op_mov_i64, { "r", "r" } }, { INDEX_op_movi_i64, { "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_ld_i64, { "r", "r" } }, { INDEX_op_st8_i64, { "rZ", "r" } }, { INDEX_op_st16_i64, { "rZ", "r" } }, { INDEX_op_st32_i64, { "rZ", "r" } }, { INDEX_op_st_i64, { "rZ", "r" } }, { INDEX_op_add_i64, { "r", "rI", "rI" } }, { INDEX_op_sub_i64, { "r", "rI", "rI" } }, { INDEX_op_and_i64, { "r", "rI", "rI" } }, { INDEX_op_andc_i64, { "r", "rI", "rI" } }, { INDEX_op_eqv_i64, { "r", "rZ", "rZ" } }, { INDEX_op_nand_i64, { "r", "rZ", "rZ" } }, { INDEX_op_nor_i64, { "r", "rZ", "rZ" } }, { INDEX_op_or_i64, { "r", "rI", "rI" } }, { INDEX_op_orc_i64, { "r", "rZ", "rZ" } }, { INDEX_op_xor_i64, { "r", "rI", "rI" } }, { INDEX_op_mul_i64, { "r", "rZ", "rZ" } }, { INDEX_op_sar_i64, { "r", "rZ", "ri" } }, { INDEX_op_shl_i64, { "r", "rZ", "ri" } }, { INDEX_op_shr_i64, { "r", "rZ", "ri" } }, { INDEX_op_rotl_i64, { "r", "rZ", "ri" } }, { INDEX_op_rotr_i64, { "r", "rZ", "ri" } }, { INDEX_op_ext8s_i64, { "r", "rZ"} }, { INDEX_op_ext8u_i64, { "r", "rZ"} }, { INDEX_op_ext16s_i64, { "r", "rZ"} }, { INDEX_op_ext16u_i64, { "r", "rZ"} }, { INDEX_op_ext32s_i64, { "r", "rZ"} }, { INDEX_op_ext32u_i64, { "r", "rZ"} }, { INDEX_op_bswap16_i64, { "r", "rZ" } }, { INDEX_op_bswap32_i64, { "r", "rZ" } }, { INDEX_op_bswap64_i64, { "r", "rZ" } }, { INDEX_op_brcond_i64, { "rI", "rI" } }, { INDEX_op_setcond_i64, { "r", "rZ", "rZ" } }, { INDEX_op_qemu_ld8u, { "r", "r" } }, { INDEX_op_qemu_ld8s, { "r", "r" } }, { INDEX_op_qemu_ld16u, { "r", "r" } }, { INDEX_op_qemu_ld16s, { "r", "r" } }, { INDEX_op_qemu_ld32, { "r", "r" } }, { INDEX_op_qemu_ld32u, { "r", "r" } }, { INDEX_op_qemu_ld32s, { "r", "r" } }, { INDEX_op_qemu_ld64, { "r", "r" } }, { INDEX_op_qemu_st8, { "SZ", "r" } }, { INDEX_op_qemu_st16, { "SZ", "r" } }, { INDEX_op_qemu_st32, { "SZ", "r" } }, { INDEX_op_qemu_st64, { "SZ", "r" } }, { -1 }, }; /* Generate global QEMU prologue and epilogue code */ static void tcg_target_qemu_prologue(TCGContext *s) { int frame_size; /* reserve some stack space */ frame_size = TCG_STATIC_CALL_ARGS_SIZE; frame_size = (frame_size + TCG_TARGET_STACK_ALIGN - 1) & ~(TCG_TARGET_STACK_ALIGN - 1); /* First emit adhoc function descriptor */ *(uint64_t *)(s->code_ptr) = (uint64_t)s->code_ptr + 16; /* entry point */ s->code_ptr += 16; /* skip GP */ /* prologue */ tcg_out_bundle(s, mII, tcg_opc_m34(TCG_REG_P0, OPC_ALLOC_M34, TCG_REG_R33, 32, 24, 0), tcg_opc_i21(TCG_REG_P0, OPC_MOV_I21, TCG_REG_B6, TCG_REG_R32, 0), tcg_opc_i22(TCG_REG_P0, OPC_MOV_I22, TCG_REG_R32, TCG_REG_B0)); /* ??? If GUEST_BASE < 0x200000, we could load the register via an ADDL in the M slot of the next bundle. */ if (GUEST_BASE != 0) { tcg_out_bundle(s, mlx, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_l2 (GUEST_BASE), tcg_opc_x2 (TCG_REG_P0, OPC_MOVL_X2, TCG_GUEST_BASE_REG, GUEST_BASE)); tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); } tcg_out_bundle(s, miB, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_a4 (TCG_REG_P0, OPC_ADDS_A4, TCG_REG_R12, -frame_size, TCG_REG_R12), tcg_opc_b4 (TCG_REG_P0, OPC_BR_SPTK_MANY_B4, TCG_REG_B6)); /* epilogue */ tb_ret_addr = s->code_ptr; tcg_out_bundle(s, miI, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i21(TCG_REG_P0, OPC_MOV_I21, TCG_REG_B0, TCG_REG_R32, 0), tcg_opc_a4 (TCG_REG_P0, OPC_ADDS_A4, TCG_REG_R12, frame_size, TCG_REG_R12)); tcg_out_bundle(s, miB, tcg_opc_m48(TCG_REG_P0, OPC_NOP_M48, 0), tcg_opc_i26(TCG_REG_P0, OPC_MOV_I_I26, TCG_REG_PFS, TCG_REG_R33), tcg_opc_b4 (TCG_REG_P0, OPC_BR_RET_SPTK_MANY_B4, TCG_REG_B0)); } static void tcg_target_init(TCGContext *s) { tcg_regset_set(tcg_target_available_regs[TCG_TYPE_I32], 0xffffffffffffffffull); tcg_regset_set(tcg_target_available_regs[TCG_TYPE_I64], 0xffffffffffffffffull); tcg_regset_clear(tcg_target_call_clobber_regs); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R8); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R9); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R10); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R11); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R14); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R15); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R16); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R17); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R18); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R19); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R20); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R21); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R22); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R23); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R24); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R25); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R26); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R27); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R28); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R29); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R30); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R31); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R56); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R57); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R58); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R59); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R60); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R61); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R62); tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R63); tcg_regset_clear(s->reserved_regs); tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); /* zero register */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); /* global pointer */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2); /* internal use */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R3); /* internal use */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R12); /* stack pointer */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); /* thread pointer */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R32); /* return address */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R33); /* PFS */ /* The following 3 are not in use, are call-saved, but *not* saved by the prologue. Therefore we cannot use them without modifying the prologue. There doesn't seem to be any good reason to use these as opposed to the windowed registers. */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R4); tcg_regset_set_reg(s->reserved_regs, TCG_REG_R5); tcg_regset_set_reg(s->reserved_regs, TCG_REG_R6); tcg_add_target_add_op_defs(ia64_op_defs); }