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Diffstat (limited to 'tcg/i386/tcg-target.c')
-rw-r--r--tcg/i386/tcg-target.c363
1 files changed, 175 insertions, 188 deletions
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index 87eeab3d30..c1f07415ab 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -112,7 +112,7 @@ static bool have_cmov;
static uint8_t *tb_ret_addr;
static void patch_reloc(uint8_t *code_ptr, int type,
- tcg_target_long value, tcg_target_long addend)
+ intptr_t value, intptr_t addend)
{
value += addend;
switch(type) {
@@ -190,11 +190,11 @@ static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
/* qemu_ld/st address constraint */
case 'L':
ct->ct |= TCG_CT_REG;
-#if TCG_TARGET_REG_BITS == 64
+ if (TCG_TARGET_REG_BITS == 64) {
tcg_regset_set32(ct->u.regs, 0, 0xffff);
-#else
+ } else {
tcg_regset_set32(ct->u.regs, 0, 0xff);
-#endif
+ }
tcg_regset_reset_reg(ct->u.regs, TCG_REG_L0);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_L1);
break;
@@ -430,8 +430,7 @@ static void tcg_out_modrm(TCGContext *s, int opc, int r, int rm)
that will follow the instruction. */
static void tcg_out_modrm_sib_offset(TCGContext *s, int opc, int r, int rm,
- int index, int shift,
- tcg_target_long offset)
+ int index, int shift, intptr_t offset)
{
int mod, len;
@@ -439,8 +438,8 @@ static void tcg_out_modrm_sib_offset(TCGContext *s, int opc, int r, int rm,
if (TCG_TARGET_REG_BITS == 64) {
/* Try for a rip-relative addressing mode. This has replaced
the 32-bit-mode absolute addressing encoding. */
- tcg_target_long pc = (tcg_target_long)s->code_ptr + 5 + ~rm;
- tcg_target_long disp = offset - pc;
+ intptr_t pc = (intptr_t)s->code_ptr + 5 + ~rm;
+ intptr_t disp = offset - pc;
if (disp == (int32_t)disp) {
tcg_out_opc(s, opc, r, 0, 0);
tcg_out8(s, (LOWREGMASK(r) << 3) | 5);
@@ -514,7 +513,7 @@ static void tcg_out_modrm_sib_offset(TCGContext *s, int opc, int r, int rm,
/* A simplification of the above with no index or shift. */
static inline void tcg_out_modrm_offset(TCGContext *s, int opc, int r,
- int rm, tcg_target_long offset)
+ int rm, intptr_t offset)
{
tcg_out_modrm_sib_offset(s, opc, r, rm, -1, 0, offset);
}
@@ -541,20 +540,34 @@ static inline void tcg_out_mov(TCGContext *s, TCGType type,
static void tcg_out_movi(TCGContext *s, TCGType type,
TCGReg ret, tcg_target_long arg)
{
+ tcg_target_long diff;
+
if (arg == 0) {
tgen_arithr(s, ARITH_XOR, ret, ret);
return;
- } else if (arg == (uint32_t)arg || type == TCG_TYPE_I32) {
+ }
+ if (arg == (uint32_t)arg || type == TCG_TYPE_I32) {
tcg_out_opc(s, OPC_MOVL_Iv + LOWREGMASK(ret), 0, ret, 0);
tcg_out32(s, arg);
- } else if (arg == (int32_t)arg) {
+ return;
+ }
+ if (arg == (int32_t)arg) {
tcg_out_modrm(s, OPC_MOVL_EvIz + P_REXW, 0, ret);
tcg_out32(s, arg);
- } else {
- tcg_out_opc(s, OPC_MOVL_Iv + P_REXW + LOWREGMASK(ret), 0, ret, 0);
- tcg_out32(s, arg);
- tcg_out32(s, arg >> 31 >> 1);
+ return;
}
+
+ /* Try a 7 byte pc-relative lea before the 10 byte movq. */
+ diff = arg - ((uintptr_t)s->code_ptr + 7);
+ if (diff == (int32_t)diff) {
+ tcg_out_opc(s, OPC_LEA | P_REXW, ret, 0, 0);
+ tcg_out8(s, (LOWREGMASK(ret) << 3) | 5);
+ tcg_out32(s, diff);
+ return;
+ }
+
+ tcg_out_opc(s, OPC_MOVL_Iv + P_REXW + LOWREGMASK(ret), 0, ret, 0);
+ tcg_out64(s, arg);
}
static inline void tcg_out_pushi(TCGContext *s, tcg_target_long val)
@@ -581,19 +594,27 @@ static inline void tcg_out_pop(TCGContext *s, int reg)
}
static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret,
- TCGReg arg1, tcg_target_long arg2)
+ TCGReg arg1, intptr_t arg2)
{
int opc = OPC_MOVL_GvEv + (type == TCG_TYPE_I64 ? P_REXW : 0);
tcg_out_modrm_offset(s, opc, ret, arg1, arg2);
}
static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg,
- TCGReg arg1, tcg_target_long arg2)
+ TCGReg arg1, intptr_t arg2)
{
int opc = OPC_MOVL_EvGv + (type == TCG_TYPE_I64 ? P_REXW : 0);
tcg_out_modrm_offset(s, opc, arg, arg1, arg2);
}
+static inline void tcg_out_sti(TCGContext *s, TCGType type, TCGReg base,
+ tcg_target_long ofs, tcg_target_long val)
+{
+ int opc = OPC_MOVL_EvIz + (type == TCG_TYPE_I64 ? P_REXW : 0);
+ tcg_out_modrm_offset(s, opc, 0, base, ofs);
+ tcg_out32(s, val);
+}
+
static void tcg_out_shifti(TCGContext *s, int subopc, int reg, int count)
{
/* Propagate an opcode prefix, such as P_DATA16. */
@@ -735,7 +756,7 @@ static void tcg_out_jxx(TCGContext *s, int opc, int label_index, int small)
TCGLabel *l = &s->labels[label_index];
if (l->has_value) {
- val = l->u.value - (tcg_target_long)s->code_ptr;
+ val = l->u.value - (intptr_t)s->code_ptr;
val1 = val - 2;
if ((int8_t)val1 == val1) {
if (opc == -1) {
@@ -975,9 +996,9 @@ static void tcg_out_movcond64(TCGContext *s, TCGCond cond, TCGArg dest,
}
#endif
-static void tcg_out_branch(TCGContext *s, int call, tcg_target_long dest)
+static void tcg_out_branch(TCGContext *s, int call, uintptr_t dest)
{
- tcg_target_long disp = dest - (tcg_target_long)s->code_ptr - 5;
+ intptr_t disp = dest - (intptr_t)s->code_ptr - 5;
if (disp == (int32_t)disp) {
tcg_out_opc(s, call ? OPC_CALL_Jz : OPC_JMP_long, 0, 0, 0);
@@ -989,36 +1010,35 @@ static void tcg_out_branch(TCGContext *s, int call, tcg_target_long dest)
}
}
-static inline void tcg_out_calli(TCGContext *s, tcg_target_long dest)
+static inline void tcg_out_calli(TCGContext *s, uintptr_t dest)
{
tcg_out_branch(s, 1, dest);
}
-static void tcg_out_jmp(TCGContext *s, tcg_target_long dest)
+static void tcg_out_jmp(TCGContext *s, uintptr_t dest)
{
tcg_out_branch(s, 0, dest);
}
#if defined(CONFIG_SOFTMMU)
-
-#include "exec/softmmu_defs.h"
-
-/* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr,
- int mmu_idx) */
-static const void *qemu_ld_helpers[4] = {
- helper_ldb_mmu,
- helper_ldw_mmu,
- helper_ldl_mmu,
- helper_ldq_mmu,
+/* helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr,
+ * int mmu_idx, uintptr_t ra)
+ */
+static const void * const qemu_ld_helpers[4] = {
+ helper_ret_ldub_mmu,
+ helper_ret_lduw_mmu,
+ helper_ret_ldul_mmu,
+ helper_ret_ldq_mmu,
};
-/* helper signature: helper_st_mmu(CPUState *env, target_ulong addr,
- uintxx_t val, int mmu_idx) */
-static const void *qemu_st_helpers[4] = {
- helper_stb_mmu,
- helper_stw_mmu,
- helper_stl_mmu,
- helper_stq_mmu,
+/* helper signature: helper_ret_st_mmu(CPUState *env, target_ulong addr,
+ * uintxx_t val, int mmu_idx, uintptr_t ra)
+ */
+static const void * const qemu_st_helpers[4] = {
+ helper_ret_stb_mmu,
+ helper_ret_stw_mmu,
+ helper_ret_stl_mmu,
+ helper_ret_stq_mmu,
};
static void add_qemu_ldst_label(TCGContext *s,
@@ -1062,33 +1082,46 @@ static inline void tcg_out_tlb_load(TCGContext *s, int addrlo_idx,
const int addrlo = args[addrlo_idx];
const int r0 = TCG_REG_L0;
const int r1 = TCG_REG_L1;
- TCGType type = TCG_TYPE_I32;
- int rexw = 0;
+ TCGType ttype = TCG_TYPE_I32;
+ TCGType htype = TCG_TYPE_I32;
+ int trexw = 0, hrexw = 0;
- if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 64) {
- type = TCG_TYPE_I64;
- rexw = P_REXW;
+ if (TCG_TARGET_REG_BITS == 64) {
+ if (TARGET_LONG_BITS == 64) {
+ ttype = TCG_TYPE_I64;
+ trexw = P_REXW;
+ }
+ if (TCG_TYPE_PTR == TCG_TYPE_I64) {
+ htype = TCG_TYPE_I64;
+ hrexw = P_REXW;
+ }
}
- tcg_out_mov(s, type, r0, addrlo);
- tcg_out_mov(s, type, r1, addrlo);
+ tcg_out_mov(s, htype, r0, addrlo);
+ tcg_out_mov(s, ttype, r1, addrlo);
- tcg_out_shifti(s, SHIFT_SHR + rexw, r0,
+ tcg_out_shifti(s, SHIFT_SHR + hrexw, r0,
TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
- tgen_arithi(s, ARITH_AND + rexw, r1,
+ tgen_arithi(s, ARITH_AND + trexw, r1,
TARGET_PAGE_MASK | ((1 << s_bits) - 1), 0);
- tgen_arithi(s, ARITH_AND + rexw, r0,
+ tgen_arithi(s, ARITH_AND + hrexw, r0,
(CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS, 0);
- tcg_out_modrm_sib_offset(s, OPC_LEA + P_REXW, r0, TCG_AREG0, r0, 0,
+ tcg_out_modrm_sib_offset(s, OPC_LEA + hrexw, r0, TCG_AREG0, r0, 0,
offsetof(CPUArchState, tlb_table[mem_index][0])
+ which);
/* cmp 0(r0), r1 */
- tcg_out_modrm_offset(s, OPC_CMP_GvEv + rexw, r1, r0, 0);
+ tcg_out_modrm_offset(s, OPC_CMP_GvEv + trexw, r1, r0, 0);
- tcg_out_mov(s, type, r1, addrlo);
+ /* Prepare for both the fast path add of the tlb addend, and the slow
+ path function argument setup. There are two cases worth note:
+ For 32-bit guest and x86_64 host, MOVL zero-extends the guest address
+ before the fastpath ADDQ below. For 64-bit guest and x32 host, MOVQ
+ copies the entire guest address for the slow path, while truncation
+ for the 32-bit host happens with the fastpath ADDL below. */
+ tcg_out_mov(s, ttype, r1, addrlo);
/* jne slow_path */
tcg_out_opc(s, OPC_JCC_long + JCC_JNE, 0, 0, 0);
@@ -1108,7 +1141,7 @@ static inline void tcg_out_tlb_load(TCGContext *s, int addrlo_idx,
/* TLB Hit. */
/* add addend(r0), r1 */
- tcg_out_modrm_offset(s, OPC_ADD_GvEv + P_REXW, r1, r0,
+ tcg_out_modrm_offset(s, OPC_ADD_GvEv + hrexw, r1, r0,
offsetof(CPUTLBEntry, addend) - which);
}
#elif defined(__x86_64__) && defined(__linux__)
@@ -1130,8 +1163,7 @@ static inline void setup_guest_base_seg(void) { }
#endif /* SOFTMMU */
static void tcg_out_qemu_ld_direct(TCGContext *s, int datalo, int datahi,
- int base, tcg_target_long ofs, int seg,
- int sizeop)
+ int base, intptr_t ofs, int seg, int sizeop)
{
#ifdef TARGET_WORDS_BIGENDIAN
const int bswap = 1;
@@ -1281,7 +1313,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
}
static void tcg_out_qemu_st_direct(TCGContext *s, int datalo, int datahi,
- int base, tcg_target_long ofs, int seg,
+ int base, intptr_t ofs, int seg,
int sizeop)
{
#ifdef TARGET_WORDS_BIGENDIAN
@@ -1449,22 +1481,12 @@ static void add_qemu_ldst_label(TCGContext *s,
/*
* Generate code for the slow path for a load at the end of block
*/
-static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *label)
+static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
{
- int s_bits;
- int opc = label->opc;
- int mem_index = label->mem_index;
-#if TCG_TARGET_REG_BITS == 32
- int stack_adjust;
- int addrlo_reg = label->addrlo_reg;
- int addrhi_reg = label->addrhi_reg;
-#endif
- int data_reg = label->datalo_reg;
- int data_reg2 = label->datahi_reg;
- uint8_t *raddr = label->raddr;
- uint8_t **label_ptr = &label->label_ptr[0];
-
- s_bits = opc & 3;
+ int opc = l->opc;
+ int s_bits = opc & 3;
+ TCGReg data_reg;
+ uint8_t **label_ptr = &l->label_ptr[0];
/* resolve label address */
*(uint32_t *)label_ptr[0] = (uint32_t)(s->code_ptr - label_ptr[0] - 4);
@@ -1472,52 +1494,36 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *label)
*(uint32_t *)label_ptr[1] = (uint32_t)(s->code_ptr - label_ptr[1] - 4);
}
-#if TCG_TARGET_REG_BITS == 32
- tcg_out_pushi(s, mem_index);
- stack_adjust = 4;
- if (TARGET_LONG_BITS == 64) {
- tcg_out_push(s, addrhi_reg);
- stack_adjust += 4;
- }
- tcg_out_push(s, addrlo_reg);
- stack_adjust += 4;
- tcg_out_push(s, TCG_AREG0);
- stack_adjust += 4;
-#else
- tcg_out_mov(s, TCG_TYPE_I64, tcg_target_call_iarg_regs[0], TCG_AREG0);
- /* The second argument is already loaded with addrlo. */
- tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[2], mem_index);
-#endif
+ if (TCG_TARGET_REG_BITS == 32) {
+ int ofs = 0;
- /* Code generation of qemu_ld/st's slow path calling MMU helper
+ tcg_out_st(s, TCG_TYPE_PTR, TCG_AREG0, TCG_REG_ESP, ofs);
+ ofs += 4;
- PRE_PROC ...
- call MMU helper
- jmp POST_PROC (2b) : short forward jump <- GETRA()
- jmp next_code (5b) : dummy long backward jump which is never executed
- POST_PROC ... : do post-processing <- GETRA() + 7
- jmp next_code : jump to the code corresponding to next IR of qemu_ld/st
- */
+ tcg_out_st(s, TCG_TYPE_I32, l->addrlo_reg, TCG_REG_ESP, ofs);
+ ofs += 4;
- tcg_out_calli(s, (tcg_target_long)qemu_ld_helpers[s_bits]);
+ if (TARGET_LONG_BITS == 64) {
+ tcg_out_st(s, TCG_TYPE_I32, l->addrhi_reg, TCG_REG_ESP, ofs);
+ ofs += 4;
+ }
- /* Jump to post-processing code */
- tcg_out8(s, OPC_JMP_short);
- tcg_out8(s, 5);
- /* Dummy backward jump having information of fast path'pc for MMU helpers */
- tcg_out8(s, OPC_JMP_long);
- *(int32_t *)s->code_ptr = (int32_t)(raddr - s->code_ptr - 4);
- s->code_ptr += 4;
+ tcg_out_sti(s, TCG_TYPE_I32, TCG_REG_ESP, ofs, l->mem_index);
+ ofs += 4;
-#if TCG_TARGET_REG_BITS == 32
- if (stack_adjust == (TCG_TARGET_REG_BITS / 8)) {
- /* Pop and discard. This is 2 bytes smaller than the add. */
- tcg_out_pop(s, TCG_REG_ECX);
- } else if (stack_adjust != 0) {
- tcg_out_addi(s, TCG_REG_CALL_STACK, stack_adjust);
+ tcg_out_sti(s, TCG_TYPE_I32, TCG_REG_ESP, ofs, (uintptr_t)l->raddr);
+ } else {
+ tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[0], TCG_AREG0);
+ /* The second argument is already loaded with addrlo. */
+ tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[2],
+ l->mem_index);
+ tcg_out_movi(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[3],
+ (uintptr_t)l->raddr);
}
-#endif
+ tcg_out_calli(s, (uintptr_t)qemu_ld_helpers[s_bits]);
+
+ data_reg = l->datalo_reg;
switch(opc) {
case 0 | 4:
tcg_out_ext8s(s, data_reg, TCG_REG_EAX, P_REXW);
@@ -1525,30 +1531,27 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *label)
case 1 | 4:
tcg_out_ext16s(s, data_reg, TCG_REG_EAX, P_REXW);
break;
- case 0:
- tcg_out_ext8u(s, data_reg, TCG_REG_EAX);
- break;
- case 1:
- tcg_out_ext16u(s, data_reg, TCG_REG_EAX);
- break;
- case 2:
- tcg_out_mov(s, TCG_TYPE_I32, data_reg, TCG_REG_EAX);
- break;
#if TCG_TARGET_REG_BITS == 64
case 2 | 4:
tcg_out_ext32s(s, data_reg, TCG_REG_EAX);
break;
#endif
+ case 0:
+ case 1:
+ /* Note that the helpers have zero-extended to tcg_target_long. */
+ case 2:
+ tcg_out_mov(s, TCG_TYPE_I32, data_reg, TCG_REG_EAX);
+ break;
case 3:
if (TCG_TARGET_REG_BITS == 64) {
tcg_out_mov(s, TCG_TYPE_I64, data_reg, TCG_REG_RAX);
} else if (data_reg == TCG_REG_EDX) {
/* xchg %edx, %eax */
tcg_out_opc(s, OPC_XCHG_ax_r32 + TCG_REG_EDX, 0, 0, 0);
- tcg_out_mov(s, TCG_TYPE_I32, data_reg2, TCG_REG_EAX);
+ tcg_out_mov(s, TCG_TYPE_I32, l->datahi_reg, TCG_REG_EAX);
} else {
tcg_out_mov(s, TCG_TYPE_I32, data_reg, TCG_REG_EAX);
- tcg_out_mov(s, TCG_TYPE_I32, data_reg2, TCG_REG_EDX);
+ tcg_out_mov(s, TCG_TYPE_I32, l->datahi_reg, TCG_REG_EDX);
}
break;
default:
@@ -1556,28 +1559,18 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *label)
}
/* Jump to the code corresponding to next IR of qemu_st */
- tcg_out_jmp(s, (tcg_target_long)raddr);
+ tcg_out_jmp(s, (uintptr_t)l->raddr);
}
/*
* Generate code for the slow path for a store at the end of block
*/
-static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *label)
+static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
{
- int s_bits;
- int stack_adjust;
- int opc = label->opc;
- int mem_index = label->mem_index;
- int data_reg = label->datalo_reg;
-#if TCG_TARGET_REG_BITS == 32
- int data_reg2 = label->datahi_reg;
- int addrlo_reg = label->addrlo_reg;
- int addrhi_reg = label->addrhi_reg;
-#endif
- uint8_t *raddr = label->raddr;
- uint8_t **label_ptr = &label->label_ptr[0];
-
- s_bits = opc & 3;
+ int opc = l->opc;
+ int s_bits = opc & 3;
+ uint8_t **label_ptr = &l->label_ptr[0];
+ TCGReg retaddr;
/* resolve label address */
*(uint32_t *)label_ptr[0] = (uint32_t)(s->code_ptr - label_ptr[0] - 4);
@@ -1585,61 +1578,55 @@ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *label)
*(uint32_t *)label_ptr[1] = (uint32_t)(s->code_ptr - label_ptr[1] - 4);
}
-#if TCG_TARGET_REG_BITS == 32
- tcg_out_pushi(s, mem_index);
- stack_adjust = 4;
- if (opc == 3) {
- tcg_out_push(s, data_reg2);
- stack_adjust += 4;
- }
- tcg_out_push(s, data_reg);
- stack_adjust += 4;
- if (TARGET_LONG_BITS == 64) {
- tcg_out_push(s, addrhi_reg);
- stack_adjust += 4;
- }
- tcg_out_push(s, addrlo_reg);
- stack_adjust += 4;
- tcg_out_push(s, TCG_AREG0);
- stack_adjust += 4;
-#else
- tcg_out_mov(s, TCG_TYPE_I64, tcg_target_call_iarg_regs[0], TCG_AREG0);
- /* The second argument is already loaded with addrlo. */
- tcg_out_mov(s, (opc == 3 ? TCG_TYPE_I64 : TCG_TYPE_I32),
- tcg_target_call_iarg_regs[2], data_reg);
- tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[3], mem_index);
- stack_adjust = 0;
-#endif
+ if (TCG_TARGET_REG_BITS == 32) {
+ int ofs = 0;
- /* Code generation of qemu_ld/st's slow path calling MMU helper
+ tcg_out_st(s, TCG_TYPE_PTR, TCG_AREG0, TCG_REG_ESP, ofs);
+ ofs += 4;
- PRE_PROC ...
- call MMU helper
- jmp POST_PROC (2b) : short forward jump <- GETRA()
- jmp next_code (5b) : dummy long backward jump which is never executed
- POST_PROC ... : do post-processing <- GETRA() + 7
- jmp next_code : jump to the code corresponding to next IR of qemu_ld/st
- */
+ tcg_out_st(s, TCG_TYPE_I32, l->addrlo_reg, TCG_REG_ESP, ofs);
+ ofs += 4;
- tcg_out_calli(s, (tcg_target_long)qemu_st_helpers[s_bits]);
+ if (TARGET_LONG_BITS == 64) {
+ tcg_out_st(s, TCG_TYPE_I32, l->addrhi_reg, TCG_REG_ESP, ofs);
+ ofs += 4;
+ }
- /* Jump to post-processing code */
- tcg_out8(s, OPC_JMP_short);
- tcg_out8(s, 5);
- /* Dummy backward jump having information of fast path'pc for MMU helpers */
- tcg_out8(s, OPC_JMP_long);
- *(int32_t *)s->code_ptr = (int32_t)(raddr - s->code_ptr - 4);
- s->code_ptr += 4;
+ tcg_out_st(s, TCG_TYPE_I32, l->datalo_reg, TCG_REG_ESP, ofs);
+ ofs += 4;
+
+ if (opc == 3) {
+ tcg_out_st(s, TCG_TYPE_I32, l->datahi_reg, TCG_REG_ESP, ofs);
+ ofs += 4;
+ }
+
+ tcg_out_sti(s, TCG_TYPE_I32, TCG_REG_ESP, ofs, l->mem_index);
+ ofs += 4;
- if (stack_adjust == (TCG_TARGET_REG_BITS / 8)) {
- /* Pop and discard. This is 2 bytes smaller than the add. */
- tcg_out_pop(s, TCG_REG_ECX);
- } else if (stack_adjust != 0) {
- tcg_out_addi(s, TCG_REG_CALL_STACK, stack_adjust);
+ retaddr = TCG_REG_EAX;
+ tcg_out_movi(s, TCG_TYPE_I32, retaddr, (uintptr_t)l->raddr);
+ tcg_out_st(s, TCG_TYPE_I32, retaddr, TCG_REG_ESP, ofs);
+ } else {
+ tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[0], TCG_AREG0);
+ /* The second argument is already loaded with addrlo. */
+ tcg_out_mov(s, (opc == 3 ? TCG_TYPE_I64 : TCG_TYPE_I32),
+ tcg_target_call_iarg_regs[2], l->datalo_reg);
+ tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[3],
+ l->mem_index);
+
+ if (ARRAY_SIZE(tcg_target_call_iarg_regs) > 4) {
+ retaddr = tcg_target_call_iarg_regs[4];
+ tcg_out_movi(s, TCG_TYPE_PTR, retaddr, (uintptr_t)l->raddr);
+ } else {
+ retaddr = TCG_REG_RAX;
+ tcg_out_movi(s, TCG_TYPE_PTR, retaddr, (uintptr_t)l->raddr);
+ tcg_out_st(s, TCG_TYPE_PTR, retaddr, TCG_REG_ESP, 0);
+ }
}
- /* Jump to the code corresponding to next IR of qemu_st */
- tcg_out_jmp(s, (tcg_target_long)raddr);
+ /* "Tail call" to the helper, with the return address back inline. */
+ tcg_out_push(s, retaddr);
+ tcg_out_jmp(s, (uintptr_t)qemu_st_helpers[s_bits]);
}
/*
@@ -1680,7 +1667,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
switch(opc) {
case INDEX_op_exit_tb:
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_EAX, args[0]);
- tcg_out_jmp(s, (tcg_target_long) tb_ret_addr);
+ tcg_out_jmp(s, (uintptr_t)tb_ret_addr);
break;
case INDEX_op_goto_tb:
if (s->tb_jmp_offset) {
@@ -1691,7 +1678,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
} else {
/* indirect jump method */
tcg_out_modrm_offset(s, OPC_GRP5, EXT5_JMPN_Ev, -1,
- (tcg_target_long)(s->tb_next + args[0]));
+ (intptr_t)(s->tb_next + args[0]));
}
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
break;
@@ -2384,7 +2371,7 @@ static DebugFrame debug_frame = {
#if defined(ELF_HOST_MACHINE)
void tcg_register_jit(void *buf, size_t buf_size)
{
- debug_frame.fde.func_start = (tcg_target_long) buf;
+ debug_frame.fde.func_start = (uintptr_t)buf;
debug_frame.fde.func_len = buf_size;
tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
generated by cgit v1.2.3 (git 2.26.2) at 2025-02-23 10:50:41 +0000