tcg-sparc: Fix qemu_ld/st to handle 32-bit host.

At the same time, split out the tlb load logic to a new function.
Fixes the cases of two data registers and two address registers.
Fixes the signature of, and adds missing, qemu_ld/st opcodes.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2012-03-23 23:27:39 +01:00
parent 9b9c37c364
commit a0ce341aac

View File

@ -59,8 +59,6 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
};
#endif
#define ARG_OFFSET 1
static const int tcg_target_reg_alloc_order[] = {
TCG_REG_L0,
TCG_REG_L1,
@ -288,6 +286,16 @@ static inline int tcg_target_const_match(tcg_target_long val,
#define ASI_PRIMARY_LITTLE 0x88
#endif
#define LDUH_LE (LDUHA | INSN_ASI(ASI_PRIMARY_LITTLE))
#define LDSH_LE (LDSHA | INSN_ASI(ASI_PRIMARY_LITTLE))
#define LDUW_LE (LDUWA | INSN_ASI(ASI_PRIMARY_LITTLE))
#define LDSW_LE (LDSWA | INSN_ASI(ASI_PRIMARY_LITTLE))
#define LDX_LE (LDXA | INSN_ASI(ASI_PRIMARY_LITTLE))
#define STH_LE (STHA | INSN_ASI(ASI_PRIMARY_LITTLE))
#define STW_LE (STWA | INSN_ASI(ASI_PRIMARY_LITTLE))
#define STX_LE (STXA | INSN_ASI(ASI_PRIMARY_LITTLE))
static inline void tcg_out_arith(TCGContext *s, int rd, int rs1, int rs2,
int op)
{
@ -360,64 +368,43 @@ static inline void tcg_out_movi(TCGContext *s, TCGType type,
}
}
static inline void tcg_out_ld_raw(TCGContext *s, int ret,
tcg_target_long arg)
static inline void tcg_out_ldst_rr(TCGContext *s, int data, int a1,
int a2, int op)
{
tcg_out_sethi(s, ret, arg);
tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) |
INSN_IMM13(arg & 0x3ff));
tcg_out32(s, op | INSN_RD(data) | INSN_RS1(a1) | INSN_RS2(a2));
}
static inline void tcg_out_ld_ptr(TCGContext *s, int ret,
tcg_target_long arg)
static inline void tcg_out_ldst(TCGContext *s, int ret, int addr,
int offset, int op)
{
if (!check_fit_tl(arg, 10))
tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ffULL);
if (TCG_TARGET_REG_BITS == 64) {
tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(ret) |
INSN_IMM13(arg & 0x3ff));
} else {
tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) |
INSN_IMM13(arg & 0x3ff));
}
}
static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, int offset, int op)
{
if (check_fit_tl(offset, 13))
if (check_fit_tl(offset, 13)) {
tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(addr) |
INSN_IMM13(offset));
else {
} else {
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, offset);
tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) |
INSN_RS2(addr));
tcg_out_ldst_rr(s, ret, addr, TCG_REG_I5, op);
}
}
static inline void tcg_out_ldst_asi(TCGContext *s, int ret, int addr,
int offset, int op, int asi)
{
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, offset);
tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) |
INSN_ASI(asi) | INSN_RS2(addr));
}
static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret,
TCGReg arg1, tcg_target_long arg2)
{
if (type == TCG_TYPE_I32)
tcg_out_ldst(s, ret, arg1, arg2, LDUW);
else
tcg_out_ldst(s, ret, arg1, arg2, LDX);
tcg_out_ldst(s, ret, arg1, arg2, (type == TCG_TYPE_I32 ? LDUW : LDX));
}
static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg,
TCGReg arg1, tcg_target_long arg2)
{
if (type == TCG_TYPE_I32)
tcg_out_ldst(s, arg, arg1, arg2, STW);
else
tcg_out_ldst(s, arg, arg1, arg2, STX);
tcg_out_ldst(s, arg, arg1, arg2, (type == TCG_TYPE_I32 ? STW : STX));
}
static inline void tcg_out_ld_ptr(TCGContext *s, int ret,
tcg_target_long arg)
{
if (!check_fit_tl(arg, 10)) {
tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ff);
}
tcg_out_ld(s, TCG_TYPE_PTR, ret, ret, arg & 0x3ff);
}
static inline void tcg_out_sety(TCGContext *s, int rs)
@ -442,14 +429,15 @@ static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
}
}
static inline void tcg_out_andi(TCGContext *s, int reg, tcg_target_long val)
static inline void tcg_out_andi(TCGContext *s, int rd, int rs,
tcg_target_long val)
{
if (val != 0) {
if (check_fit_tl(val, 13))
tcg_out_arithi(s, reg, reg, val, ARITH_AND);
tcg_out_arithi(s, rd, rs, val, ARITH_AND);
else {
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, val);
tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_AND);
tcg_out_arith(s, rd, rs, TCG_REG_I5, ARITH_AND);
}
}
}
@ -718,418 +706,328 @@ static const void * const qemu_st_helpers[4] = {
helper_stl_mmu,
helper_stq_mmu,
};
#endif
#if TARGET_LONG_BITS == 32
#define TARGET_LD_OP LDUW
#else
#define TARGET_LD_OP LDX
#endif
/* Perform the TLB load and compare.
#if defined(CONFIG_SOFTMMU)
#if HOST_LONG_BITS == 32
#define TARGET_ADDEND_LD_OP LDUW
#else
#define TARGET_ADDEND_LD_OP LDX
#endif
#endif
Inputs:
ADDRLO_IDX contains the index into ARGS of the low part of the
address; the high part of the address is at ADDR_LOW_IDX+1.
#if TCG_TARGET_REG_BITS == 64
#define HOST_LD_OP LDX
#define HOST_ST_OP STX
#define HOST_SLL_OP SHIFT_SLLX
#define HOST_SRA_OP SHIFT_SRAX
#else
#define HOST_LD_OP LDUW
#define HOST_ST_OP STW
#define HOST_SLL_OP SHIFT_SLL
#define HOST_SRA_OP SHIFT_SRA
#endif
MEM_INDEX and S_BITS are the memory context and log2 size of the load.
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
int opc)
WHICH is the offset into the CPUTLBEntry structure of the slot to read.
This should be offsetof addr_read or addr_write.
The result of the TLB comparison is in %[ix]cc. The sanitized address
is in the returned register, maybe %o0. The TLB addend is in %o1. */
static int tcg_out_tlb_load(TCGContext *s, int addrlo_idx, int mem_index,
int s_bits, const TCGArg *args, int which)
{
int addr_reg, data_reg, arg0, arg1, arg2, mem_index, s_bits;
#if defined(CONFIG_SOFTMMU)
uint32_t *label1_ptr, *label2_ptr;
#endif
const int addrlo = args[addrlo_idx];
const int r0 = TCG_REG_O0;
const int r1 = TCG_REG_O1;
const int r2 = TCG_REG_O2;
int addr = addrlo;
int tlb_ofs;
data_reg = *args++;
addr_reg = *args++;
mem_index = *args;
s_bits = opc & 3;
if (TCG_TARGET_REG_BITS == 32 && TARGET_LONG_BITS == 64) {
/* Assemble the 64-bit address in R0. */
tcg_out_arithi(s, r0, addrlo, 0, SHIFT_SRL);
tcg_out_arithi(s, r1, args[addrlo_idx + 1], 32, SHIFT_SLLX);
tcg_out_arith(s, r0, r0, r1, ARITH_OR);
}
arg0 = TCG_REG_O0;
arg1 = TCG_REG_O1;
arg2 = TCG_REG_O2;
/* Shift the page number down to tlb-entry. */
tcg_out_arithi(s, r1, addrlo,
TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, SHIFT_SRL);
#if defined(CONFIG_SOFTMMU)
/* srl addr_reg, x, arg1 */
tcg_out_arithi(s, arg1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS,
SHIFT_SRL);
/* and addr_reg, x, arg0 */
tcg_out_arithi(s, arg0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
ARITH_AND);
/* Mask out the page offset, except for the required alignment. */
tcg_out_andi(s, r0, addr, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
/* and arg1, x, arg1 */
tcg_out_andi(s, arg1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
/* Compute tlb index, modulo tlb size. */
tcg_out_andi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
/* add arg1, x, arg1 */
tcg_out_addi(s, arg1, offsetof(CPUArchState,
tlb_table[mem_index][0].addr_read));
/* Relative to the current ENV. */
tcg_out_arith(s, r1, TCG_AREG0, r1, ARITH_ADD);
/* add env, arg1, arg1 */
tcg_out_arith(s, arg1, TCG_AREG0, arg1, ARITH_ADD);
/* Find a base address that can load both tlb comparator and addend. */
tlb_ofs = offsetof(CPUArchState, tlb_table[mem_index][0]);
if (!check_fit_tl(tlb_ofs + sizeof(CPUTLBEntry), 13)) {
tcg_out_addi(s, r1, tlb_ofs);
tlb_ofs = 0;
}
/* ld [arg1], arg2 */
tcg_out32(s, TARGET_LD_OP | INSN_RD(arg2) | INSN_RS1(arg1) |
INSN_RS2(TCG_REG_G0));
/* Load the tlb comparator and the addend. */
tcg_out_ld(s, TCG_TYPE_TL, r2, r1, tlb_ofs + which);
tcg_out_ld(s, TCG_TYPE_PTR, r1, r1, tlb_ofs+offsetof(CPUTLBEntry, addend));
/* subcc arg0, arg2, %g0 */
tcg_out_arith(s, TCG_REG_G0, arg0, arg2, ARITH_SUBCC);
tcg_out_cmp(s, r0, r2, 0);
/* will become:
be label1
or
be,pt %xcc label1 */
label1_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, 0);
/* If the guest address must be zero-extended, do so now. */
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) {
tcg_out_arithi(s, r0, addrlo, 0, SHIFT_SRL);
return r0;
}
return addrlo;
}
#endif /* CONFIG_SOFTMMU */
/* mov (delay slot) */
tcg_out_mov(s, TCG_TYPE_PTR, arg0, addr_reg);
static const int qemu_ld_opc[8] = {
#ifdef TARGET_WORDS_BIGENDIAN
LDUB, LDUH, LDUW, LDX, LDSB, LDSH, LDSW, LDX
#else
LDUB, LDUH_LE, LDUW_LE, LDX_LE, LDSB, LDSH_LE, LDSW_LE, LDX_LE
#endif
};
/* mov */
tcg_out_movi(s, TCG_TYPE_I32, arg1, mem_index);
/* XXX/FIXME: suboptimal */
tcg_out_mov(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[3],
tcg_target_call_iarg_regs[2]);
tcg_out_mov(s, TCG_TYPE_I64, tcg_target_call_iarg_regs[2],
tcg_target_call_iarg_regs[1]);
tcg_out_mov(s, TCG_TYPE_TL, tcg_target_call_iarg_regs[1],
tcg_target_call_iarg_regs[0]);
tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[0],
TCG_AREG0);
static const int qemu_st_opc[4] = {
#ifdef TARGET_WORDS_BIGENDIAN
STB, STH, STW, STX
#else
STB, STH_LE, STW_LE, STX_LE
#endif
};
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int sizeop)
{
int addrlo_idx = 1, datalo, datahi, addr_reg;
#if defined(CONFIG_SOFTMMU)
int memi_idx, memi, s_bits, n;
uint32_t *label_ptr[2];
#endif
datahi = datalo = args[0];
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) {
datahi = args[1];
addrlo_idx = 2;
}
#if defined(CONFIG_SOFTMMU)
memi_idx = addrlo_idx + 1 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS);
memi = args[memi_idx];
s_bits = sizeop & 3;
addr_reg = tcg_out_tlb_load(s, addrlo_idx, memi, s_bits, args,
offsetof(CPUTLBEntry, addr_read));
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) {
int reg64;
/* bne,pn %[xi]cc, label0 */
label_ptr[0] = (uint32_t *)s->code_ptr;
tcg_out32(s, (INSN_OP(0) | INSN_COND(COND_NE, 0) | INSN_OP2(0x1)
| ((TARGET_LONG_BITS == 64) << 21)));
/* TLB Hit. */
/* Load all 64-bits into an O/G register. */
reg64 = (datalo < 16 ? datalo : TCG_REG_O0);
tcg_out_ldst_rr(s, reg64, addr_reg, TCG_REG_O1, qemu_ld_opc[sizeop]);
/* Move the two 32-bit pieces into the destination registers. */
tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX);
if (reg64 != datalo) {
tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64);
}
/* b,a,pt label1 */
label_ptr[1] = (uint32_t *)s->code_ptr;
tcg_out32(s, (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x1)
| (1 << 29) | (1 << 19)));
} else {
/* The fast path is exactly one insn. Thus we can perform the
entire TLB Hit in the (annulled) delay slot of the branch
over the TLB Miss case. */
/* beq,a,pt %[xi]cc, label0 */
label_ptr[0] = NULL;
label_ptr[1] = (uint32_t *)s->code_ptr;
tcg_out32(s, (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1)
| ((TARGET_LONG_BITS == 64) << 21)
| (1 << 29) | (1 << 19)));
/* delay slot */
tcg_out_ldst_rr(s, datalo, addr_reg, TCG_REG_O1, qemu_ld_opc[sizeop]);
}
/* TLB Miss. */
if (label_ptr[0]) {
*label_ptr[0] |= INSN_OFF19((unsigned long)s->code_ptr -
(unsigned long)label_ptr[0]);
}
n = 0;
tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[n++], TCG_AREG0);
if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++],
args[addrlo_idx + 1]);
}
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++],
args[addrlo_idx]);
/* Store AREG0 in stack to avoid ugly glibc bugs that mangle
global registers */
tcg_out_st(s, TCG_TYPE_REG, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long));
/* XXX: move that code at the end of the TB */
/* qemu_ld_helper[s_bits](arg0, arg1) */
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_ld_helpers[s_bits]
- (tcg_target_ulong)s->code_ptr) >> 2)
& 0x3fffffff));
/* delay slot */
tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[n], memi);
/* Reload AREG0. */
tcg_out_ld(s, TCG_TYPE_REG, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long));
n = tcg_target_call_oarg_regs[0];
/* datalo = sign_extend(arg0) */
switch (sizeop) {
case 0 | 4:
/* Recall that SRA sign extends from bit 31 through bit 63. */
tcg_out_arithi(s, datalo, n, 24, SHIFT_SLL);
tcg_out_arithi(s, datalo, datalo, 24, SHIFT_SRA);
break;
case 1 | 4:
tcg_out_arithi(s, datalo, n, 16, SHIFT_SLL);
tcg_out_arithi(s, datalo, datalo, 16, SHIFT_SRA);
break;
case 2 | 4:
tcg_out_arithi(s, datalo, n, 0, SHIFT_SRA);
break;
case 3:
if (TCG_TARGET_REG_BITS == 32) {
tcg_out_mov(s, TCG_TYPE_REG, datahi, n);
tcg_out_mov(s, TCG_TYPE_REG, datalo, n + 1);
break;
}
/* FALLTHRU */
case 0:
case 1:
case 2:
default:
/* mov */
tcg_out_mov(s, TCG_TYPE_REG, datalo, n);
break;
}
*label_ptr[1] |= INSN_OFF19((unsigned long)s->code_ptr -
(unsigned long)label_ptr[1]);
#else
addr_reg = args[addrlo_idx];
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) {
tcg_out_arithi(s, TCG_REG_I5, addr_reg, 0, SHIFT_SRL);
addr_reg = TCG_REG_I5;
}
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) {
int reg64 = (datalo < 16 ? datalo : TCG_REG_O0);
tcg_out_ldst_rr(s, reg64, addr_reg, TCG_REG_G0, qemu_ld_opc[sizeop]);
tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX);
if (reg64 != datalo) {
tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64);
}
} else {
tcg_out_ldst_rr(s, datalo, addr_reg, TCG_REG_G0, qemu_ld_opc[sizeop]);
}
#endif /* CONFIG_SOFTMMU */
}
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int sizeop)
{
int addrlo_idx = 1, datalo, datahi, addr_reg;
#if defined(CONFIG_SOFTMMU)
int memi_idx, memi, n;
uint32_t *label_ptr;
#endif
datahi = datalo = args[0];
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) {
datahi = args[1];
addrlo_idx = 2;
}
#if defined(CONFIG_SOFTMMU)
memi_idx = addrlo_idx + 1 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS);
memi = args[memi_idx];
addr_reg = tcg_out_tlb_load(s, addrlo_idx, memi, sizeop, args,
offsetof(CPUTLBEntry, addr_write));
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) {
/* Reconstruct the full 64-bit value in %g1, using %o2 as temp. */
/* ??? Redefine the temps from %i4/%i5 so that we have a o/g temp. */
tcg_out_arithi(s, TCG_REG_G1, datalo, 0, SHIFT_SRL);
tcg_out_arithi(s, TCG_REG_O2, datahi, 32, SHIFT_SLLX);
tcg_out_arith(s, TCG_REG_G1, TCG_REG_G1, TCG_REG_O2, ARITH_OR);
datalo = TCG_REG_G1;
}
/* The fast path is exactly one insn. Thus we can perform the entire
TLB Hit in the (annulled) delay slot of the branch over TLB Miss. */
/* beq,a,pt %[xi]cc, label0 */
label_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1)
| ((TARGET_LONG_BITS == 64) << 21)
| (1 << 29) | (1 << 19)));
/* delay slot */
tcg_out_ldst_rr(s, datalo, addr_reg, TCG_REG_O1, qemu_st_opc[sizeop]);
/* TLB Miss. */
n = 0;
tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[n++], TCG_AREG0);
if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++],
args[addrlo_idx + 1]);
}
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++],
args[addrlo_idx]);
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) {
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++], datahi);
}
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++], datalo);
/* Store AREG0 in stack to avoid ugly glibc bugs that mangle
global registers */
// delay slot
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
tcg_out_st(s, TCG_TYPE_REG, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_ST_OP);
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_LD_OP);
sizeof(long));
/* data_reg = sign_extend(arg0) */
switch(opc) {
case 0 | 4:
/* sll arg0, 24/56, data_reg */
tcg_out_arithi(s, data_reg, arg0, (int)sizeof(tcg_target_long) * 8 - 8,
HOST_SLL_OP);
/* sra data_reg, 24/56, data_reg */
tcg_out_arithi(s, data_reg, data_reg,
(int)sizeof(tcg_target_long) * 8 - 8, HOST_SRA_OP);
break;
case 1 | 4:
/* sll arg0, 16/48, data_reg */
tcg_out_arithi(s, data_reg, arg0,
(int)sizeof(tcg_target_long) * 8 - 16, HOST_SLL_OP);
/* sra data_reg, 16/48, data_reg */
tcg_out_arithi(s, data_reg, data_reg,
(int)sizeof(tcg_target_long) * 8 - 16, HOST_SRA_OP);
break;
case 2 | 4:
/* sll arg0, 32, data_reg */
tcg_out_arithi(s, data_reg, arg0, 32, HOST_SLL_OP);
/* sra data_reg, 32, data_reg */
tcg_out_arithi(s, data_reg, data_reg, 32, HOST_SRA_OP);
break;
case 0:
case 1:
case 2:
case 3:
default:
/* mov */
tcg_out_mov(s, TCG_TYPE_REG, data_reg, arg0);
break;
}
/* will become:
ba label2 */
label2_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, 0);
/* nop (delay slot */
tcg_out_nop(s);
/* label1: */
#if TARGET_LONG_BITS == 32
/* be label1 */
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)s->code_ptr -
(unsigned long)label1_ptr));
#else
/* be,pt %xcc label1 */
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1) |
(0x5 << 19) | INSN_OFF19((unsigned long)s->code_ptr -
(unsigned long)label1_ptr));
#endif
/* ld [arg1 + x], arg1 */
tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_read), TARGET_ADDEND_LD_OP);
#if TARGET_LONG_BITS == 32
/* and addr_reg, x, arg0 */
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, 0xffffffff);
tcg_out_arith(s, arg0, addr_reg, TCG_REG_I5, ARITH_AND);
/* add arg0, arg1, arg0 */
tcg_out_arith(s, arg0, arg0, arg1, ARITH_ADD);
#else
/* add addr_reg, arg1, arg0 */
tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD);
#endif
#else
arg0 = addr_reg;
#endif
switch(opc) {
case 0:
/* ldub [arg0], data_reg */
tcg_out_ldst(s, data_reg, arg0, 0, LDUB);
break;
case 0 | 4:
/* ldsb [arg0], data_reg */
tcg_out_ldst(s, data_reg, arg0, 0, LDSB);
break;
case 1:
#ifdef TARGET_WORDS_BIGENDIAN
/* lduh [arg0], data_reg */
tcg_out_ldst(s, data_reg, arg0, 0, LDUH);
#else
/* lduha [arg0] ASI_PRIMARY_LITTLE, data_reg */
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDUHA, ASI_PRIMARY_LITTLE);
#endif
break;
case 1 | 4:
#ifdef TARGET_WORDS_BIGENDIAN
/* ldsh [arg0], data_reg */
tcg_out_ldst(s, data_reg, arg0, 0, LDSH);
#else
/* ldsha [arg0] ASI_PRIMARY_LITTLE, data_reg */
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDSHA, ASI_PRIMARY_LITTLE);
#endif
break;
case 2:
#ifdef TARGET_WORDS_BIGENDIAN
/* lduw [arg0], data_reg */
tcg_out_ldst(s, data_reg, arg0, 0, LDUW);
#else
/* lduwa [arg0] ASI_PRIMARY_LITTLE, data_reg */
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDUWA, ASI_PRIMARY_LITTLE);
#endif
break;
case 2 | 4:
#ifdef TARGET_WORDS_BIGENDIAN
/* ldsw [arg0], data_reg */
tcg_out_ldst(s, data_reg, arg0, 0, LDSW);
#else
/* ldswa [arg0] ASI_PRIMARY_LITTLE, data_reg */
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDSWA, ASI_PRIMARY_LITTLE);
#endif
break;
case 3:
#ifdef TARGET_WORDS_BIGENDIAN
/* ldx [arg0], data_reg */
tcg_out_ldst(s, data_reg, arg0, 0, LDX);
#else
/* ldxa [arg0] ASI_PRIMARY_LITTLE, data_reg */
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDXA, ASI_PRIMARY_LITTLE);
#endif
break;
default:
tcg_abort();
}
#if defined(CONFIG_SOFTMMU)
/* label2: */
*label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)s->code_ptr -
(unsigned long)label2_ptr));
#endif
}
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
int opc)
{
int addr_reg, data_reg, arg0, arg1, arg2, mem_index, s_bits;
#if defined(CONFIG_SOFTMMU)
uint32_t *label1_ptr, *label2_ptr;
#endif
data_reg = *args++;
addr_reg = *args++;
mem_index = *args;
s_bits = opc;
arg0 = TCG_REG_O0;
arg1 = TCG_REG_O1;
arg2 = TCG_REG_O2;
#if defined(CONFIG_SOFTMMU)
/* srl addr_reg, x, arg1 */
tcg_out_arithi(s, arg1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS,
SHIFT_SRL);
/* and addr_reg, x, arg0 */
tcg_out_arithi(s, arg0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
ARITH_AND);
/* and arg1, x, arg1 */
tcg_out_andi(s, arg1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
/* add arg1, x, arg1 */
tcg_out_addi(s, arg1, offsetof(CPUArchState,
tlb_table[mem_index][0].addr_write));
/* add env, arg1, arg1 */
tcg_out_arith(s, arg1, TCG_AREG0, arg1, ARITH_ADD);
/* ld [arg1], arg2 */
tcg_out32(s, TARGET_LD_OP | INSN_RD(arg2) | INSN_RS1(arg1) |
INSN_RS2(TCG_REG_G0));
/* subcc arg0, arg2, %g0 */
tcg_out_arith(s, TCG_REG_G0, arg0, arg2, ARITH_SUBCC);
/* will become:
be label1
or
be,pt %xcc label1 */
label1_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, 0);
/* mov (delay slot) */
tcg_out_mov(s, TCG_TYPE_PTR, arg0, addr_reg);
/* mov */
tcg_out_mov(s, TCG_TYPE_REG, arg1, data_reg);
/* mov */
tcg_out_movi(s, TCG_TYPE_I32, arg2, mem_index);
/* XXX/FIXME: suboptimal */
tcg_out_mov(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[3],
tcg_target_call_iarg_regs[2]);
tcg_out_mov(s, TCG_TYPE_I64, tcg_target_call_iarg_regs[2],
tcg_target_call_iarg_regs[1]);
tcg_out_mov(s, TCG_TYPE_TL, tcg_target_call_iarg_regs[1],
tcg_target_call_iarg_regs[0]);
tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[0],
TCG_AREG0);
/* XXX: move that code at the end of the TB */
/* qemu_st_helper[s_bits](arg0, arg1, arg2) */
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_st_helpers[s_bits]
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_st_helpers[sizeop]
- (tcg_target_ulong)s->code_ptr) >> 2)
& 0x3fffffff));
/* Store AREG0 in stack to avoid ugly glibc bugs that mangle
global registers */
// delay slot
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
/* delay slot */
tcg_out_movi(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n], memi);
/* Reload AREG0. */
tcg_out_ld(s, TCG_TYPE_REG, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_ST_OP);
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_LD_OP);
sizeof(long));
/* will become:
ba label2 */
label2_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, 0);
/* nop (delay slot) */
tcg_out_nop(s);
#if TARGET_LONG_BITS == 32
/* be label1 */
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)s->code_ptr -
(unsigned long)label1_ptr));
*label_ptr |= INSN_OFF19((unsigned long)s->code_ptr -
(unsigned long)label_ptr);
#else
/* be,pt %xcc label1 */
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1) |
(0x5 << 19) | INSN_OFF19((unsigned long)s->code_ptr -
(unsigned long)label1_ptr));
#endif
/* ld [arg1 + x], arg1 */
tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_write), TARGET_ADDEND_LD_OP);
#if TARGET_LONG_BITS == 32
/* and addr_reg, x, arg0 */
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, 0xffffffff);
tcg_out_arith(s, arg0, addr_reg, TCG_REG_I5, ARITH_AND);
/* add arg0, arg1, arg0 */
tcg_out_arith(s, arg0, arg0, arg1, ARITH_ADD);
#else
/* add addr_reg, arg1, arg0 */
tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD);
#endif
#else
arg0 = addr_reg;
#endif
switch(opc) {
case 0:
/* stb data_reg, [arg0] */
tcg_out_ldst(s, data_reg, arg0, 0, STB);
break;
case 1:
#ifdef TARGET_WORDS_BIGENDIAN
/* sth data_reg, [arg0] */
tcg_out_ldst(s, data_reg, arg0, 0, STH);
#else
/* stha data_reg, [arg0] ASI_PRIMARY_LITTLE */
tcg_out_ldst_asi(s, data_reg, arg0, 0, STHA, ASI_PRIMARY_LITTLE);
#endif
break;
case 2:
#ifdef TARGET_WORDS_BIGENDIAN
/* stw data_reg, [arg0] */
tcg_out_ldst(s, data_reg, arg0, 0, STW);
#else
/* stwa data_reg, [arg0] ASI_PRIMARY_LITTLE */
tcg_out_ldst_asi(s, data_reg, arg0, 0, STWA, ASI_PRIMARY_LITTLE);
#endif
break;
case 3:
#ifdef TARGET_WORDS_BIGENDIAN
/* stx data_reg, [arg0] */
tcg_out_ldst(s, data_reg, arg0, 0, STX);
#else
/* stxa data_reg, [arg0] ASI_PRIMARY_LITTLE */
tcg_out_ldst_asi(s, data_reg, arg0, 0, STXA, ASI_PRIMARY_LITTLE);
#endif
break;
default:
tcg_abort();
addr_reg = args[addrlo_idx];
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) {
tcg_out_arithi(s, TCG_REG_I5, addr_reg, 0, SHIFT_SRL);
addr_reg = TCG_REG_I5;
}
#if defined(CONFIG_SOFTMMU)
/* label2: */
*label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)s->code_ptr -
(unsigned long)label2_ptr));
#endif
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) {
/* Reconstruct the full 64-bit value in %g1, using %o2 as temp. */
/* ??? Redefine the temps from %i4/%i5 so that we have a o/g temp. */
tcg_out_arithi(s, TCG_REG_G1, datalo, 0, SHIFT_SRL);
tcg_out_arithi(s, TCG_REG_O2, datahi, 32, SHIFT_SLLX);
tcg_out_arith(s, TCG_REG_G1, TCG_REG_G1, TCG_REG_O2, ARITH_OR);
datalo = TCG_REG_G1;
}
tcg_out_ldst_rr(s, datalo, addr_reg, TCG_REG_G0, qemu_st_opc[sizeop]);
#endif /* CONFIG_SOFTMMU */
}
static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
@ -1175,12 +1073,12 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
/* Store AREG0 in stack to avoid ugly glibc bugs that mangle
global registers */
// delay slot
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
tcg_out_st(s, TCG_TYPE_REG, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_ST_OP);
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
sizeof(long));
tcg_out_ld(s, TCG_TYPE_REG, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_LD_OP);
sizeof(long));
break;
case INDEX_op_jmp:
case INDEX_op_br:
@ -1348,6 +1246,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
tcg_out_qemu_ld(s, args, 2 | 4);
break;
#endif
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;
@ -1357,6 +1258,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
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;
#if TCG_TARGET_REG_BITS == 64
case INDEX_op_movi_i64:
@ -1421,13 +1325,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
args[2], const_args[2]);
break;
case INDEX_op_qemu_ld64:
tcg_out_qemu_ld(s, args, 3);
break;
case INDEX_op_qemu_st64:
tcg_out_qemu_st(s, args, 3);
break;
#endif
gen_arith:
tcg_out_arithc(s, args[0], args[1], args[2], const_args[2], c);
@ -1492,20 +1389,6 @@ static const TCGTargetOpDef sparc_op_defs[] = {
{ INDEX_op_mulu2_i32, { "r", "r", "r", "rJ" } },
#endif
{ 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" } },
#if TCG_TARGET_REG_BITS == 64
{ INDEX_op_qemu_ld32u, { "r", "L" } },
{ INDEX_op_qemu_ld32s, { "r", "L" } },
#endif
{ INDEX_op_qemu_st8, { "L", "L" } },
{ INDEX_op_qemu_st16, { "L", "L" } },
{ INDEX_op_qemu_st32, { "L", "L" } },
#if TCG_TARGET_REG_BITS == 64
{ INDEX_op_mov_i64, { "r", "r" } },
{ INDEX_op_movi_i64, { "r" } },
@ -1520,8 +1403,6 @@ static const TCGTargetOpDef sparc_op_defs[] = {
{ INDEX_op_st16_i64, { "r", "r" } },
{ INDEX_op_st32_i64, { "r", "r" } },
{ INDEX_op_st_i64, { "r", "r" } },
{ INDEX_op_qemu_ld64, { "L", "L" } },
{ INDEX_op_qemu_st64, { "L", "L" } },
{ INDEX_op_add_i64, { "r", "r", "rJ" } },
{ INDEX_op_mul_i64, { "r", "r", "rJ" } },
@ -1548,10 +1429,48 @@ static const TCGTargetOpDef sparc_op_defs[] = {
{ INDEX_op_brcond_i64, { "r", "rJ" } },
{ INDEX_op_setcond_i64, { "r", "r", "rJ" } },
#else
{ INDEX_op_qemu_ld64, { "L", "L", "L" } },
{ INDEX_op_qemu_st64, { "L", "L", "L" } },
#endif
#if TCG_TARGET_REG_BITS == 64
{ 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, { "L", "L" } },
{ INDEX_op_qemu_st16, { "L", "L" } },
{ INDEX_op_qemu_st32, { "L", "L" } },
{ INDEX_op_qemu_st64, { "L", "L" } },
#elif TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
{ 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_ld64, { "r", "r", "L" } },
{ INDEX_op_qemu_st8, { "L", "L" } },
{ INDEX_op_qemu_st16, { "L", "L" } },
{ INDEX_op_qemu_st32, { "L", "L" } },
{ INDEX_op_qemu_st64, { "L", "L", "L" } },
#else
{ INDEX_op_qemu_ld8u, { "r", "L", "L" } },
{ INDEX_op_qemu_ld8s, { "r", "L", "L" } },
{ INDEX_op_qemu_ld16u, { "r", "L", "L" } },
{ INDEX_op_qemu_ld16s, { "r", "L", "L" } },
{ INDEX_op_qemu_ld32, { "r", "L", "L" } },
{ INDEX_op_qemu_ld64, { "L", "L", "L", "L" } },
{ INDEX_op_qemu_st8, { "L", "L", "L" } },
{ INDEX_op_qemu_st16, { "L", "L", "L" } },
{ INDEX_op_qemu_st32, { "L", "L", "L" } },
{ INDEX_op_qemu_st64, { "L", "L", "L", "L" } },
#endif
{ -1 },
};