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Diffstat (limited to 'thirdparty/pcre2/src/sljit/sljitNativeX86_32.c')
-rw-r--r--thirdparty/pcre2/src/sljit/sljitNativeX86_32.c1337
1 files changed, 916 insertions, 421 deletions
diff --git a/thirdparty/pcre2/src/sljit/sljitNativeX86_32.c b/thirdparty/pcre2/src/sljit/sljitNativeX86_32.c
index 79a7e8bba5..b9a7b39789 100644
--- a/thirdparty/pcre2/src/sljit/sljitNativeX86_32.c
+++ b/thirdparty/pcre2/src/sljit/sljitNativeX86_32.c
@@ -26,6 +26,10 @@
/* x86 32-bit arch dependent functions. */
+/* --------------------------------------------------------------------- */
+/* Operators */
+/* --------------------------------------------------------------------- */
+
static sljit_s32 emit_do_imm(struct sljit_compiler *compiler, sljit_u8 opcode, sljit_sw imm)
{
sljit_u8 *inst;
@@ -38,314 +42,8 @@ static sljit_s32 emit_do_imm(struct sljit_compiler *compiler, sljit_u8 opcode, s
return SLJIT_SUCCESS;
}
-static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_ptr, sljit_sw executable_offset)
-{
- sljit_s32 type = jump->flags >> TYPE_SHIFT;
-
- if (type == SLJIT_JUMP) {
- *code_ptr++ = JMP_i32;
- jump->addr++;
- }
- else if (type >= SLJIT_FAST_CALL) {
- *code_ptr++ = CALL_i32;
- jump->addr++;
- }
- else {
- *code_ptr++ = GROUP_0F;
- *code_ptr++ = get_jump_code(type);
- jump->addr += 2;
- }
-
- if (jump->flags & JUMP_LABEL)
- jump->flags |= PATCH_MW;
- else
- sljit_unaligned_store_sw(code_ptr, jump->u.target - (jump->addr + 4) - (sljit_uw)executable_offset);
- code_ptr += 4;
-
- return code_ptr;
-}
-
-SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
- sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
- sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
-{
- sljit_s32 args, size;
- sljit_u8 *inst;
-
- CHECK_ERROR();
- CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
- set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
-
- /* Emit ENDBR32 at function entry if needed. */
- FAIL_IF(emit_endbranch(compiler));
-
- args = get_arg_count(arg_types);
- compiler->args = args;
-
- /* [esp+0] for saving temporaries and function calls. */
- compiler->stack_tmp_size = 2 * sizeof(sljit_sw);
-
-#if !(defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- if (scratches > 3)
- compiler->stack_tmp_size = 3 * sizeof(sljit_sw);
-#endif
-
- compiler->saveds_offset = compiler->stack_tmp_size;
- if (scratches > 3)
- compiler->saveds_offset += ((scratches > (3 + 6)) ? 6 : (scratches - 3)) * sizeof(sljit_sw);
-
- compiler->locals_offset = compiler->saveds_offset;
-
- if (saveds > 3)
- compiler->locals_offset += (saveds - 3) * sizeof(sljit_sw);
-
- if (options & SLJIT_F64_ALIGNMENT)
- compiler->locals_offset = (compiler->locals_offset + sizeof(sljit_f64) - 1) & ~(sizeof(sljit_f64) - 1);
-
- size = 1 + (scratches > 9 ? (scratches - 9) : 0) + (saveds <= 3 ? saveds : 3);
-#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- size += (args > 0 ? (args * 2) : 0) + (args > 2 ? 2 : 0);
-#else
- size += (args > 0 ? (2 + args * 3) : 0);
-#endif
- inst = (sljit_u8*)ensure_buf(compiler, 1 + size);
- FAIL_IF(!inst);
-
- INC_SIZE(size);
- PUSH_REG(reg_map[TMP_REG1]);
-#if !(defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- if (args > 0) {
- *inst++ = MOV_r_rm;
- *inst++ = MOD_REG | (reg_map[TMP_REG1] << 3) | 0x4 /* esp */;
- }
-#endif
- if (saveds > 2 || scratches > 9)
- PUSH_REG(reg_map[SLJIT_S2]);
- if (saveds > 1 || scratches > 10)
- PUSH_REG(reg_map[SLJIT_S1]);
- if (saveds > 0 || scratches > 11)
- PUSH_REG(reg_map[SLJIT_S0]);
-
-#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- if (args > 0) {
- inst[0] = MOV_r_rm;
- inst[1] = MOD_REG | (reg_map[SLJIT_S0] << 3) | reg_map[SLJIT_R2];
- inst += 2;
- }
- if (args > 1) {
- inst[0] = MOV_r_rm;
- inst[1] = MOD_REG | (reg_map[SLJIT_S1] << 3) | reg_map[SLJIT_R1];
- inst += 2;
- }
- if (args > 2) {
- inst[0] = MOV_r_rm;
- inst[1] = MOD_DISP8 | (reg_map[SLJIT_S2] << 3) | 0x4 /* esp */;
- inst[2] = 0x24;
- inst[3] = sizeof(sljit_sw) * (3 + 2); /* saveds >= 3 as well. */
- }
-#else
- if (args > 0) {
- inst[0] = MOV_r_rm;
- inst[1] = MOD_DISP8 | (reg_map[SLJIT_S0] << 3) | reg_map[TMP_REG1];
- inst[2] = sizeof(sljit_sw) * 2;
- inst += 3;
- }
- if (args > 1) {
- inst[0] = MOV_r_rm;
- inst[1] = MOD_DISP8 | (reg_map[SLJIT_S1] << 3) | reg_map[TMP_REG1];
- inst[2] = sizeof(sljit_sw) * 3;
- inst += 3;
- }
- if (args > 2) {
- inst[0] = MOV_r_rm;
- inst[1] = MOD_DISP8 | (reg_map[SLJIT_S2] << 3) | reg_map[TMP_REG1];
- inst[2] = sizeof(sljit_sw) * 4;
- }
-#endif
-
- SLJIT_ASSERT(SLJIT_LOCALS_OFFSET > 0);
-
-#if defined(__APPLE__)
- /* Ignore pushed registers and SLJIT_LOCALS_OFFSET when computing the aligned local size. */
- saveds = (2 + (scratches > 9 ? (scratches - 9) : 0) + (saveds <= 3 ? saveds : 3)) * sizeof(sljit_uw);
- local_size = ((SLJIT_LOCALS_OFFSET + saveds + local_size + 15) & ~15) - saveds;
-#else
- if (options & SLJIT_F64_ALIGNMENT)
- local_size = SLJIT_LOCALS_OFFSET + ((local_size + sizeof(sljit_f64) - 1) & ~(sizeof(sljit_f64) - 1));
- else
- local_size = SLJIT_LOCALS_OFFSET + ((local_size + sizeof(sljit_sw) - 1) & ~(sizeof(sljit_sw) - 1));
-#endif
-
- compiler->local_size = local_size;
-
-#ifdef _WIN32
- if (local_size > 0) {
- if (local_size <= 4 * 4096) {
- if (local_size > 4096)
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), -4096);
- if (local_size > 2 * 4096)
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), -4096 * 2);
- if (local_size > 3 * 4096)
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), -4096 * 3);
- }
- else {
- EMIT_MOV(compiler, SLJIT_R0, 0, SLJIT_SP, 0);
- EMIT_MOV(compiler, SLJIT_R1, 0, SLJIT_IMM, (local_size - 1) >> 12);
-
- SLJIT_ASSERT (reg_map[SLJIT_R0] == 0);
-
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_R0), -4096);
- FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB),
- SLJIT_R0, 0, SLJIT_R0, 0, SLJIT_IMM, 4096));
- FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB),
- SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1));
-
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 2);
- FAIL_IF(!inst);
-
- INC_SIZE(2);
- inst[0] = JNE_i8;
- inst[1] = (sljit_s8) -16;
- }
-
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), -local_size);
- }
-#endif
-
- SLJIT_ASSERT(local_size > 0);
-
-#if !defined(__APPLE__)
- if (options & SLJIT_F64_ALIGNMENT) {
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_SP, 0);
-
- /* Some space might allocated during sljit_grow_stack() above on WIN32. */
- FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB),
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, local_size + sizeof(sljit_sw)));
-
-#if defined _WIN32 && !(defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- if (compiler->local_size > 1024)
- FAIL_IF(emit_cum_binary(compiler, BINARY_OPCODE(ADD),
- TMP_REG1, 0, TMP_REG1, 0, SLJIT_IMM, sizeof(sljit_sw)));
-#endif
-
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 6);
- FAIL_IF(!inst);
-
- INC_SIZE(6);
- inst[0] = GROUP_BINARY_81;
- inst[1] = MOD_REG | AND | reg_map[SLJIT_SP];
- sljit_unaligned_store_sw(inst + 2, ~(sizeof(sljit_f64) - 1));
-
- /* The real local size must be used. */
- return emit_mov(compiler, SLJIT_MEM1(SLJIT_SP), compiler->local_size, TMP_REG1, 0);
- }
-#endif
- return emit_non_cum_binary(compiler, BINARY_OPCODE(SUB),
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, local_size);
-}
-
-SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
- sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
- sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
-{
- CHECK_ERROR();
- CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
- set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
-
- compiler->args = get_arg_count(arg_types);
-
- /* [esp+0] for saving temporaries and function calls. */
- compiler->stack_tmp_size = 2 * sizeof(sljit_sw);
-
-#if !(defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- if (scratches > 3)
- compiler->stack_tmp_size = 3 * sizeof(sljit_sw);
-#endif
-
- compiler->saveds_offset = compiler->stack_tmp_size;
- if (scratches > 3)
- compiler->saveds_offset += ((scratches > (3 + 6)) ? 6 : (scratches - 3)) * sizeof(sljit_sw);
-
- compiler->locals_offset = compiler->saveds_offset;
-
- if (saveds > 3)
- compiler->locals_offset += (saveds - 3) * sizeof(sljit_sw);
-
- if (options & SLJIT_F64_ALIGNMENT)
- compiler->locals_offset = (compiler->locals_offset + sizeof(sljit_f64) - 1) & ~(sizeof(sljit_f64) - 1);
-
-#if defined(__APPLE__)
- saveds = (2 + (scratches > 9 ? (scratches - 9) : 0) + (saveds <= 3 ? saveds : 3)) * sizeof(sljit_uw);
- compiler->local_size = ((SLJIT_LOCALS_OFFSET + saveds + local_size + 15) & ~15) - saveds;
-#else
- if (options & SLJIT_F64_ALIGNMENT)
- compiler->local_size = SLJIT_LOCALS_OFFSET + ((local_size + sizeof(sljit_f64) - 1) & ~(sizeof(sljit_f64) - 1));
- else
- compiler->local_size = SLJIT_LOCALS_OFFSET + ((local_size + sizeof(sljit_sw) - 1) & ~(sizeof(sljit_sw) - 1));
-#endif
- return SLJIT_SUCCESS;
-}
-
-SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
-{
- sljit_s32 size;
- sljit_u8 *inst;
-
- CHECK_ERROR();
- CHECK(check_sljit_emit_return(compiler, op, src, srcw));
- SLJIT_ASSERT(compiler->args >= 0);
-
- FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
-
- SLJIT_ASSERT(compiler->local_size > 0);
-
-#if !defined(__APPLE__)
- if (compiler->options & SLJIT_F64_ALIGNMENT)
- EMIT_MOV(compiler, SLJIT_SP, 0, SLJIT_MEM1(SLJIT_SP), compiler->local_size)
- else
- FAIL_IF(emit_cum_binary(compiler, BINARY_OPCODE(ADD),
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, compiler->local_size));
-#else
- FAIL_IF(emit_cum_binary(compiler, BINARY_OPCODE(ADD),
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, compiler->local_size));
-#endif
-
- size = 2 + (compiler->scratches > 9 ? (compiler->scratches - 9) : 0) +
- (compiler->saveds <= 3 ? compiler->saveds : 3);
-#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- if (compiler->args > 2)
- size += 2;
-#endif
- inst = (sljit_u8*)ensure_buf(compiler, 1 + size);
- FAIL_IF(!inst);
-
- INC_SIZE(size);
-
- if (compiler->saveds > 0 || compiler->scratches > 11)
- POP_REG(reg_map[SLJIT_S0]);
- if (compiler->saveds > 1 || compiler->scratches > 10)
- POP_REG(reg_map[SLJIT_S1]);
- if (compiler->saveds > 2 || compiler->scratches > 9)
- POP_REG(reg_map[SLJIT_S2]);
- POP_REG(reg_map[TMP_REG1]);
-#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- if (compiler->args > 2)
- RET_I16(sizeof(sljit_sw));
- else
- RET();
-#else
- RET();
-#endif
-
- return SLJIT_SUCCESS;
-}
-
-/* --------------------------------------------------------------------- */
-/* Operators */
-/* --------------------------------------------------------------------- */
-
/* Size contains the flags as well. */
-static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32 size,
+static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_uw size,
/* The register or immediate operand. */
sljit_s32 a, sljit_sw imma,
/* The general operand (not immediate). */
@@ -353,8 +51,9 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
{
sljit_u8 *inst;
sljit_u8 *buf_ptr;
- sljit_s32 flags = size & ~0xf;
- sljit_s32 inst_size;
+ sljit_u8 reg_map_b;
+ sljit_uw flags = size;
+ sljit_uw inst_size;
/* Both cannot be switched on. */
SLJIT_ASSERT((flags & (EX86_BIN_INS | EX86_SHIFT_INS)) != (EX86_BIN_INS | EX86_SHIFT_INS));
@@ -367,8 +66,6 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
SLJIT_ASSERT((flags & (EX86_PREF_F2 | EX86_PREF_F3)) != (EX86_PREF_F2 | EX86_PREF_F3)
&& (flags & (EX86_PREF_F2 | EX86_PREF_66)) != (EX86_PREF_F2 | EX86_PREF_66)
&& (flags & (EX86_PREF_F3 | EX86_PREF_66)) != (EX86_PREF_F3 | EX86_PREF_66));
- /* We don't support (%ebp). */
- SLJIT_ASSERT(!(b & SLJIT_MEM) || immb || reg_map[b & REG_MASK] != 5);
size &= 0xf;
inst_size = size;
@@ -381,7 +78,7 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
/* Calculate size of b. */
inst_size += 1; /* mod r/m byte. */
if (b & SLJIT_MEM) {
- if ((b & REG_MASK) == SLJIT_UNUSED)
+ if (!(b & REG_MASK))
inst_size += sizeof(sljit_sw);
else if (immb != 0 && !(b & OFFS_REG_MASK)) {
/* Immediate operand. */
@@ -390,11 +87,13 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
else
inst_size += sizeof(sljit_sw);
}
+ else if (reg_map[b & REG_MASK] == 5)
+ inst_size += sizeof(sljit_s8);
if ((b & REG_MASK) == SLJIT_SP && !(b & OFFS_REG_MASK))
b |= TO_OFFS_REG(SLJIT_SP);
- if ((b & OFFS_REG_MASK) != SLJIT_UNUSED)
+ if (b & OFFS_REG_MASK)
inst_size += 1; /* SIB byte. */
}
@@ -445,9 +144,9 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
if (a & SLJIT_IMM)
*buf_ptr = 0;
else if (!(flags & EX86_SSE2_OP1))
- *buf_ptr = reg_map[a] << 3;
+ *buf_ptr = U8(reg_map[a] << 3);
else
- *buf_ptr = a << 3;
+ *buf_ptr = U8(a << 3);
}
else {
if (a & SLJIT_IMM) {
@@ -460,27 +159,30 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
*buf_ptr = 0;
}
- if (!(b & SLJIT_MEM))
- *buf_ptr++ |= MOD_REG + ((!(flags & EX86_SSE2_OP2)) ? reg_map[b] : b);
- else if ((b & REG_MASK) != SLJIT_UNUSED) {
- if ((b & OFFS_REG_MASK) == SLJIT_UNUSED || (b & OFFS_REG_MASK) == TO_OFFS_REG(SLJIT_SP)) {
- if (immb != 0) {
+ if (!(b & SLJIT_MEM)) {
+ *buf_ptr = U8(*buf_ptr | MOD_REG | (!(flags & EX86_SSE2_OP2) ? reg_map[b] : b));
+ buf_ptr++;
+ } else if (b & REG_MASK) {
+ reg_map_b = reg_map[b & REG_MASK];
+
+ if (!(b & OFFS_REG_MASK) || (b & OFFS_REG_MASK) == TO_OFFS_REG(SLJIT_SP) || reg_map_b == 5) {
+ if (immb != 0 || reg_map_b == 5) {
if (immb <= 127 && immb >= -128)
*buf_ptr |= 0x40;
else
*buf_ptr |= 0x80;
}
- if ((b & OFFS_REG_MASK) == SLJIT_UNUSED)
- *buf_ptr++ |= reg_map[b & REG_MASK];
+ if (!(b & OFFS_REG_MASK))
+ *buf_ptr++ |= reg_map_b;
else {
*buf_ptr++ |= 0x04;
- *buf_ptr++ = reg_map[b & REG_MASK] | (reg_map[OFFS_REG(b)] << 3);
+ *buf_ptr++ = U8(reg_map_b | (reg_map[OFFS_REG(b)] << 3));
}
- if (immb != 0) {
+ if (immb != 0 || reg_map_b == 5) {
if (immb <= 127 && immb >= -128)
- *buf_ptr++ = immb; /* 8 bit displacement. */
+ *buf_ptr++ = U8(immb); /* 8 bit displacement. */
else {
sljit_unaligned_store_sw(buf_ptr, immb); /* 32 bit displacement. */
buf_ptr += sizeof(sljit_sw);
@@ -489,7 +191,7 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
}
else {
*buf_ptr++ |= 0x04;
- *buf_ptr++ = reg_map[b & REG_MASK] | (reg_map[OFFS_REG(b)] << 3) | (immb << 6);
+ *buf_ptr++ = U8(reg_map_b | (reg_map[OFFS_REG(b)] << 3) | (immb << 6));
}
}
else {
@@ -500,9 +202,9 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
if (a & SLJIT_IMM) {
if (flags & EX86_BYTE_ARG)
- *buf_ptr = imma;
+ *buf_ptr = U8(imma);
else if (flags & EX86_HALF_ARG)
- sljit_unaligned_store_s16(buf_ptr, imma);
+ sljit_unaligned_store_s16(buf_ptr, (sljit_s16)imma);
else if (!(flags & EX86_SHIFT_INS))
sljit_unaligned_store_sw(buf_ptr, imma);
}
@@ -511,34 +213,449 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32
}
/* --------------------------------------------------------------------- */
-/* Call / return instructions */
+/* Enter / return */
/* --------------------------------------------------------------------- */
+static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_ptr, sljit_sw executable_offset)
+{
+ sljit_uw type = jump->flags >> TYPE_SHIFT;
+
+ if (type == SLJIT_JUMP) {
+ *code_ptr++ = JMP_i32;
+ jump->addr++;
+ }
+ else if (type >= SLJIT_FAST_CALL) {
+ *code_ptr++ = CALL_i32;
+ jump->addr++;
+ }
+ else {
+ *code_ptr++ = GROUP_0F;
+ *code_ptr++ = get_jump_code(type);
+ jump->addr += 2;
+ }
+
+ if (jump->flags & JUMP_LABEL)
+ jump->flags |= PATCH_MW;
+ else
+ sljit_unaligned_store_sw(code_ptr, (sljit_sw)(jump->u.target - (jump->addr + 4) - (sljit_uw)executable_offset));
+ code_ptr += 4;
+
+ return code_ptr;
+}
+
+#define ENTER_R2_USED 0x00001
+#define ENTER_R2_TO_S 0x00002
+#define ENTER_R2_TO_R0 0x00004
+#define ENTER_R1_TO_S 0x00008
+#define ENTER_TMP_TO_R4 0x00010
+#define ENTER_TMP_TO_S 0x00020
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
+ sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
+ sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
+{
+ sljit_s32 word_arg_count, saved_arg_count, float_arg_count;
+ sljit_s32 size, locals_offset, args_size, types, status;
+ sljit_u8 *inst;
+#ifdef _WIN32
+ sljit_s32 r2_offset = -1;
+#endif
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
+ set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
+
+ /* Emit ENDBR32 at function entry if needed. */
+ FAIL_IF(emit_endbranch(compiler));
+
+ SLJIT_COMPILE_ASSERT(SLJIT_FR0 == 1, float_register_index_start);
+
+ arg_types >>= SLJIT_ARG_SHIFT;
+ types = arg_types;
+ word_arg_count = 0;
+ saved_arg_count = 0;
+ float_arg_count = 0;
+ args_size = SSIZE_OF(sw);
+ status = 0;
+ while (types) {
+ switch (types & SLJIT_ARG_MASK) {
+ case SLJIT_ARG_TYPE_F64:
+ float_arg_count++;
+ FAIL_IF(emit_sse2_load(compiler, 0, float_arg_count, SLJIT_MEM1(SLJIT_SP), args_size));
+ args_size += SSIZE_OF(f64);
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ float_arg_count++;
+ FAIL_IF(emit_sse2_load(compiler, 1, float_arg_count, SLJIT_MEM1(SLJIT_SP), args_size));
+ args_size += SSIZE_OF(f32);
+ break;
+ default:
+ word_arg_count++;
+
+ if (!(types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
+ saved_arg_count++;
+ if (saved_arg_count == 4)
+ status |= ENTER_TMP_TO_S;
+ } else {
+ if (word_arg_count == 4)
+ status |= ENTER_TMP_TO_R4;
#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (word_arg_count == 3)
+ status |= ENTER_R2_USED;
+#endif
+ }
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (word_arg_count <= 2 && !(options & SLJIT_ENTER_CDECL))
+ break;
+#endif
+
+ args_size += SSIZE_OF(sw);
+ break;
+ }
+ types >>= SLJIT_ARG_SHIFT;
+ }
+
+ args_size -= SSIZE_OF(sw);
+ compiler->args_size = args_size;
+
+ /* [esp+0] for saving temporaries and function calls. */
+ locals_offset = 2 * SSIZE_OF(sw);
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if ((options & SLJIT_ENTER_CDECL) && scratches >= 3)
+ locals_offset = 4 * SSIZE_OF(sw);
+#else
+ if (scratches >= 3)
+ locals_offset = 4 * SSIZE_OF(sw);
+#endif
+
+ compiler->scratches_offset = locals_offset;
+
+ if (scratches > 3)
+ locals_offset += ((scratches > (3 + 6)) ? 6 : (scratches - 3)) * SSIZE_OF(sw);
+
+ if (saveds > 3)
+ locals_offset += (saveds - 3) * SSIZE_OF(sw);
+
+ compiler->locals_offset = locals_offset;
+
+ size = 1 + (scratches > 9 ? (scratches - 9) : 0) + (saveds <= 3 ? saveds : 3);
+ inst = (sljit_u8*)ensure_buf(compiler, (sljit_uw)(size + 1));
+ FAIL_IF(!inst);
+
+ INC_SIZE((sljit_uw)size);
+ PUSH_REG(reg_map[TMP_REG1]);
+ if (saveds > 2 || scratches > 9)
+ PUSH_REG(reg_map[SLJIT_S2]);
+ if (saveds > 1 || scratches > 10)
+ PUSH_REG(reg_map[SLJIT_S1]);
+ if (saveds > 0 || scratches > 11)
+ PUSH_REG(reg_map[SLJIT_S0]);
+
+ size *= SSIZE_OF(sw);
+
+ if (status & (ENTER_TMP_TO_R4 | ENTER_TMP_TO_S))
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), args_size + size);
-static sljit_s32 c_fast_call_get_stack_size(sljit_s32 arg_types, sljit_s32 *word_arg_count_ptr)
+ size += SSIZE_OF(sw);
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (!(options & SLJIT_ENTER_CDECL))
+ size += args_size;
+#endif
+
+ local_size = ((locals_offset + local_size + size + 0xf) & ~0xf) - size;
+ compiler->local_size = local_size;
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (!(options & SLJIT_ENTER_CDECL))
+ size -= args_size;
+#endif
+
+ word_arg_count = 0;
+ saved_arg_count = 0;
+ args_size = size;
+ while (arg_types) {
+ switch (arg_types & SLJIT_ARG_MASK) {
+ case SLJIT_ARG_TYPE_F64:
+ args_size += SSIZE_OF(f64);
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ args_size += SSIZE_OF(f32);
+ break;
+ default:
+ word_arg_count++;
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (!(options & SLJIT_ENTER_CDECL) && word_arg_count <= 2) {
+ if (word_arg_count == 1) {
+ if (status & ENTER_R2_USED) {
+ EMIT_MOV(compiler, (arg_types & SLJIT_ARG_TYPE_SCRATCH_REG) ? SLJIT_R0 : SLJIT_S0, 0, SLJIT_R2, 0);
+ } else if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
+ status |= ENTER_R2_TO_S;
+ saved_arg_count++;
+ } else
+ status |= ENTER_R2_TO_R0;
+ } else if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
+ status |= ENTER_R1_TO_S;
+ saved_arg_count++;
+ }
+ break;
+ }
+#endif
+ if (arg_types & SLJIT_ARG_TYPE_SCRATCH_REG) {
+ SLJIT_ASSERT(word_arg_count <= 3 || (status & ENTER_TMP_TO_R4));
+
+ if (word_arg_count <= 3) {
+#ifdef _WIN32
+ if (word_arg_count == 3 && local_size > 4 * 4096)
+ r2_offset = local_size + args_size;
+ else
+#endif
+ EMIT_MOV(compiler, word_arg_count, 0, SLJIT_MEM1(SLJIT_SP), args_size);
+ }
+ } else {
+ SLJIT_ASSERT(saved_arg_count <= 3 || (status & ENTER_TMP_TO_S));
+
+ if (saved_arg_count <= 3)
+ EMIT_MOV(compiler, SLJIT_S0 - saved_arg_count, 0, SLJIT_MEM1(SLJIT_SP), args_size);
+ saved_arg_count++;
+ }
+ args_size += SSIZE_OF(sw);
+ break;
+ }
+ arg_types >>= SLJIT_ARG_SHIFT;
+ }
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (!(options & SLJIT_ENTER_CDECL)) {
+ if (status & ENTER_R2_TO_R0)
+ EMIT_MOV(compiler, SLJIT_R0, 0, SLJIT_R2, 0);
+
+ saved_arg_count = 0;
+ if (status & ENTER_R2_TO_S) {
+ EMIT_MOV(compiler, SLJIT_S0, 0, SLJIT_R2, 0);
+ saved_arg_count++;
+ }
+
+ if (status & ENTER_R1_TO_S)
+ EMIT_MOV(compiler, SLJIT_S0 - saved_arg_count, 0, SLJIT_R1, 0);
+ }
+#endif
+
+ SLJIT_ASSERT(SLJIT_LOCALS_OFFSET > 0);
+
+#ifdef _WIN32
+ SLJIT_ASSERT(r2_offset == -1 || local_size > 4 * 4096);
+
+ if (local_size > 4096) {
+ if (local_size <= 4 * 4096) {
+ BINARY_IMM32(OR, 0, SLJIT_MEM1(SLJIT_SP), -4096);
+
+ if (local_size > 2 * 4096)
+ BINARY_IMM32(OR, 0, SLJIT_MEM1(SLJIT_SP), -4096 * 2);
+ if (local_size > 3 * 4096)
+ BINARY_IMM32(OR, 0, SLJIT_MEM1(SLJIT_SP), -4096 * 3);
+ }
+ else {
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_IMM, local_size >> 12);
+
+ BINARY_IMM32(OR, 0, SLJIT_MEM1(SLJIT_SP), -4096);
+ BINARY_IMM32(SUB, 4096, SLJIT_SP, 0);
+
+ inst = (sljit_u8*)ensure_buf(compiler, 1 + 2);
+ FAIL_IF(!inst);
+
+ INC_SIZE(2);
+ inst[0] = LOOP_i8;
+ inst[1] = (sljit_u8)-16;
+ local_size &= 0xfff;
+ }
+ }
+
+ if (local_size > 0) {
+ BINARY_IMM32(OR, 0, SLJIT_MEM1(SLJIT_SP), -local_size);
+ BINARY_IMM32(SUB, local_size, SLJIT_SP, 0);
+ }
+
+ if (r2_offset != -1)
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), r2_offset);
+
+#else /* !_WIN32 */
+
+ SLJIT_ASSERT(local_size > 0);
+
+ BINARY_IMM32(SUB, local_size, SLJIT_SP, 0);
+
+#endif /* _WIN32 */
+
+ if (status & (ENTER_TMP_TO_R4 | ENTER_TMP_TO_S)) {
+ size = (status & ENTER_TMP_TO_R4) ? compiler->scratches_offset : compiler->locals_offset - SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), size, TMP_REG1, 0);
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
+ sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
+ sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
{
- sljit_s32 stack_size = 0;
+ sljit_s32 args_size, locals_offset;
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
sljit_s32 word_arg_count = 0;
+#endif
- arg_types >>= SLJIT_DEF_SHIFT;
+ CHECK_ERROR();
+ CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
+ set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
+ arg_types >>= SLJIT_ARG_SHIFT;
+ args_size = 0;
while (arg_types) {
- switch (arg_types & SLJIT_DEF_MASK) {
+ switch (arg_types & SLJIT_ARG_MASK) {
+ case SLJIT_ARG_TYPE_F64:
+ args_size += SSIZE_OF(f64);
+ break;
case SLJIT_ARG_TYPE_F32:
- stack_size += sizeof(sljit_f32);
+ args_size += SSIZE_OF(f32);
+ break;
+ default:
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (word_arg_count >= 2)
+ args_size += SSIZE_OF(sw);
+ word_arg_count++;
+#else
+ args_size += SSIZE_OF(sw);
+#endif
break;
+ }
+ arg_types >>= SLJIT_ARG_SHIFT;
+ }
+
+ compiler->args_size = args_size;
+
+ /* [esp+0] for saving temporaries and function calls. */
+ locals_offset = 2 * SSIZE_OF(sw);
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if ((options & SLJIT_ENTER_CDECL) && scratches >= 3)
+ locals_offset = 4 * SSIZE_OF(sw);
+#else
+ if (scratches >= 3)
+ locals_offset = 4 * SSIZE_OF(sw);
+#endif
+
+ compiler->scratches_offset = locals_offset;
+
+ if (scratches > 3)
+ locals_offset += ((scratches > (3 + 6)) ? 6 : (scratches - 3)) * SSIZE_OF(sw);
+
+ if (saveds > 3)
+ locals_offset += (saveds - 3) * SSIZE_OF(sw);
+
+ compiler->locals_offset = locals_offset;
+
+ saveds = (2 + (scratches > 9 ? (scratches - 9) : 0) + (saveds <= 3 ? saveds : 3)) * SSIZE_OF(sw);
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (!(options & SLJIT_ENTER_CDECL))
+ saveds += args_size;
+#endif
+
+ compiler->local_size = ((locals_offset + local_size + saveds + 0xf) & ~0xf) - saveds;
+ return SLJIT_SUCCESS;
+}
+
+static sljit_s32 emit_stack_frame_release(struct sljit_compiler *compiler)
+{
+ sljit_uw size;
+ sljit_u8 *inst;
+
+ size = (sljit_uw)(1 + (compiler->scratches > 9 ? (compiler->scratches - 9) : 0) +
+ (compiler->saveds <= 3 ? compiler->saveds : 3));
+ inst = (sljit_u8*)ensure_buf(compiler, 1 + size);
+ FAIL_IF(!inst);
+
+ INC_SIZE(size);
+
+ if (compiler->saveds > 0 || compiler->scratches > 11)
+ POP_REG(reg_map[SLJIT_S0]);
+ if (compiler->saveds > 1 || compiler->scratches > 10)
+ POP_REG(reg_map[SLJIT_S1]);
+ if (compiler->saveds > 2 || compiler->scratches > 9)
+ POP_REG(reg_map[SLJIT_S2]);
+ POP_REG(reg_map[TMP_REG1]);
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_void(struct sljit_compiler *compiler)
+{
+ sljit_uw size;
+ sljit_u8 *inst;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_return_void(compiler));
+
+ SLJIT_ASSERT(compiler->args_size >= 0);
+ SLJIT_ASSERT(compiler->local_size > 0);
+
+ BINARY_IMM32(ADD, compiler->local_size, SLJIT_SP, 0);
+
+ FAIL_IF(emit_stack_frame_release(compiler));
+
+ size = 1;
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (compiler->args_size > 0 && !(compiler->options & SLJIT_ENTER_CDECL))
+ size = 3;
+#endif
+ inst = (sljit_u8*)ensure_buf(compiler, 1 + size);
+ FAIL_IF(!inst);
+
+ INC_SIZE(size);
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (compiler->args_size > 0 && !(compiler->options & SLJIT_ENTER_CDECL)) {
+ RET_I16(U8(compiler->args_size));
+ return SLJIT_SUCCESS;
+ }
+#endif
+
+ RET();
+ return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/* Call / return instructions */
+/* --------------------------------------------------------------------- */
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+
+static sljit_sw c_fast_call_get_stack_size(sljit_s32 arg_types, sljit_s32 *word_arg_count_ptr)
+{
+ sljit_sw stack_size = 0;
+ sljit_s32 word_arg_count = 0;
+
+ arg_types >>= SLJIT_ARG_SHIFT;
+
+ while (arg_types) {
+ switch (arg_types & SLJIT_ARG_MASK) {
case SLJIT_ARG_TYPE_F64:
- stack_size += sizeof(sljit_f64);
+ stack_size += SSIZE_OF(f64);
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ stack_size += SSIZE_OF(f32);
break;
default:
word_arg_count++;
if (word_arg_count > 2)
- stack_size += sizeof(sljit_sw);
+ stack_size += SSIZE_OF(sw);
break;
}
- arg_types >>= SLJIT_DEF_SHIFT;
+ arg_types >>= SLJIT_ARG_SHIFT;
}
if (word_arg_count_ptr)
@@ -548,12 +665,12 @@ static sljit_s32 c_fast_call_get_stack_size(sljit_s32 arg_types, sljit_s32 *word
}
static sljit_s32 c_fast_call_with_args(struct sljit_compiler *compiler,
- sljit_s32 arg_types, sljit_s32 stack_size, sljit_s32 word_arg_count, sljit_s32 swap_args)
+ sljit_s32 arg_types, sljit_sw stack_size, sljit_s32 word_arg_count, sljit_s32 swap_args)
{
sljit_u8 *inst;
sljit_s32 float_arg_count;
- if (stack_size == sizeof(sljit_sw) && word_arg_count == 3) {
+ if (stack_size == SSIZE_OF(sw) && word_arg_count == 3) {
inst = (sljit_u8*)ensure_buf(compiler, 1 + 1);
FAIL_IF(!inst);
INC_SIZE(1);
@@ -561,41 +678,40 @@ static sljit_s32 c_fast_call_with_args(struct sljit_compiler *compiler,
}
else if (stack_size > 0) {
if (word_arg_count >= 4)
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), compiler->saveds_offset - sizeof(sljit_sw));
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), compiler->scratches_offset);
- FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB),
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, stack_size));
+ BINARY_IMM32(SUB, stack_size, SLJIT_SP, 0);
stack_size = 0;
- arg_types >>= SLJIT_DEF_SHIFT;
+ arg_types >>= SLJIT_ARG_SHIFT;
word_arg_count = 0;
float_arg_count = 0;
while (arg_types) {
- switch (arg_types & SLJIT_DEF_MASK) {
- case SLJIT_ARG_TYPE_F32:
- float_arg_count++;
- FAIL_IF(emit_sse2_store(compiler, 1, SLJIT_MEM1(SLJIT_SP), stack_size, float_arg_count));
- stack_size += sizeof(sljit_f32);
- break;
+ switch (arg_types & SLJIT_ARG_MASK) {
case SLJIT_ARG_TYPE_F64:
float_arg_count++;
FAIL_IF(emit_sse2_store(compiler, 0, SLJIT_MEM1(SLJIT_SP), stack_size, float_arg_count));
- stack_size += sizeof(sljit_f64);
+ stack_size += SSIZE_OF(f64);
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ float_arg_count++;
+ FAIL_IF(emit_sse2_store(compiler, 1, SLJIT_MEM1(SLJIT_SP), stack_size, float_arg_count));
+ stack_size += SSIZE_OF(f32);
break;
default:
word_arg_count++;
if (word_arg_count == 3) {
EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), stack_size, SLJIT_R2, 0);
- stack_size += sizeof(sljit_sw);
+ stack_size += SSIZE_OF(sw);
}
else if (word_arg_count == 4) {
EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), stack_size, TMP_REG1, 0);
- stack_size += sizeof(sljit_sw);
+ stack_size += SSIZE_OF(sw);
}
break;
}
- arg_types >>= SLJIT_DEF_SHIFT;
+ arg_types >>= SLJIT_ARG_SHIFT;
}
}
@@ -605,7 +721,7 @@ static sljit_s32 c_fast_call_with_args(struct sljit_compiler *compiler,
FAIL_IF(!inst);
INC_SIZE(1);
- *inst++ = XCHG_EAX_r | reg_map[SLJIT_R2];
+ *inst++ = U8(XCHG_EAX_r | reg_map[SLJIT_R2]);
}
else {
inst = (sljit_u8*)ensure_buf(compiler, 1 + 2);
@@ -613,7 +729,7 @@ static sljit_s32 c_fast_call_with_args(struct sljit_compiler *compiler,
INC_SIZE(2);
*inst++ = MOV_r_rm;
- *inst++ = MOD_REG | (reg_map[SLJIT_R2] << 3) | reg_map[SLJIT_R0];
+ *inst++ = U8(MOD_REG | (reg_map[SLJIT_R2] << 3) | reg_map[SLJIT_R0]);
}
}
@@ -624,77 +740,73 @@ static sljit_s32 c_fast_call_with_args(struct sljit_compiler *compiler,
static sljit_s32 cdecl_call_get_stack_size(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *word_arg_count_ptr)
{
- sljit_s32 stack_size = 0;
+ sljit_sw stack_size = 0;
sljit_s32 word_arg_count = 0;
- arg_types >>= SLJIT_DEF_SHIFT;
+ arg_types >>= SLJIT_ARG_SHIFT;
while (arg_types) {
- switch (arg_types & SLJIT_DEF_MASK) {
- case SLJIT_ARG_TYPE_F32:
- stack_size += sizeof(sljit_f32);
- break;
+ switch (arg_types & SLJIT_ARG_MASK) {
case SLJIT_ARG_TYPE_F64:
- stack_size += sizeof(sljit_f64);
+ stack_size += SSIZE_OF(f64);
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ stack_size += SSIZE_OF(f32);
break;
default:
word_arg_count++;
- stack_size += sizeof(sljit_sw);
+ stack_size += SSIZE_OF(sw);
break;
}
- arg_types >>= SLJIT_DEF_SHIFT;
+ arg_types >>= SLJIT_ARG_SHIFT;
}
if (word_arg_count_ptr)
*word_arg_count_ptr = word_arg_count;
- if (stack_size <= compiler->stack_tmp_size)
+ if (stack_size <= compiler->scratches_offset)
return 0;
-#if defined(__APPLE__)
- return ((stack_size - compiler->stack_tmp_size + 15) & ~15);
-#else
- return stack_size - compiler->stack_tmp_size;
-#endif
+ return ((stack_size - compiler->scratches_offset + 0xf) & ~0xf);
}
static sljit_s32 cdecl_call_with_args(struct sljit_compiler *compiler,
- sljit_s32 arg_types, sljit_s32 stack_size, sljit_s32 word_arg_count)
+ sljit_s32 arg_types, sljit_sw stack_size, sljit_s32 word_arg_count)
{
sljit_s32 float_arg_count = 0;
+ sljit_u8 *inst;
if (word_arg_count >= 4)
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), compiler->saveds_offset - sizeof(sljit_sw));
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), compiler->scratches_offset);
if (stack_size > 0)
- FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB),
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, stack_size));
+ BINARY_IMM32(SUB, stack_size, SLJIT_SP, 0);
stack_size = 0;
word_arg_count = 0;
- arg_types >>= SLJIT_DEF_SHIFT;
+ arg_types >>= SLJIT_ARG_SHIFT;
while (arg_types) {
- switch (arg_types & SLJIT_DEF_MASK) {
- case SLJIT_ARG_TYPE_F32:
- float_arg_count++;
- FAIL_IF(emit_sse2_store(compiler, 1, SLJIT_MEM1(SLJIT_SP), stack_size, float_arg_count));
- stack_size += sizeof(sljit_f32);
- break;
+ switch (arg_types & SLJIT_ARG_MASK) {
case SLJIT_ARG_TYPE_F64:
float_arg_count++;
FAIL_IF(emit_sse2_store(compiler, 0, SLJIT_MEM1(SLJIT_SP), stack_size, float_arg_count));
- stack_size += sizeof(sljit_f64);
+ stack_size += SSIZE_OF(f64);
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ float_arg_count++;
+ FAIL_IF(emit_sse2_store(compiler, 1, SLJIT_MEM1(SLJIT_SP), stack_size, float_arg_count));
+ stack_size += SSIZE_OF(f32);
break;
default:
word_arg_count++;
EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), stack_size, (word_arg_count >= 4) ? TMP_REG1 : word_arg_count, 0);
- stack_size += sizeof(sljit_sw);
+ stack_size += SSIZE_OF(sw);
break;
}
- arg_types >>= SLJIT_DEF_SHIFT;
+ arg_types >>= SLJIT_ARG_SHIFT;
}
return SLJIT_SUCCESS;
@@ -707,13 +819,12 @@ static sljit_s32 post_call_with_args(struct sljit_compiler *compiler,
sljit_s32 single;
if (stack_size > 0)
- FAIL_IF(emit_cum_binary(compiler, BINARY_OPCODE(ADD),
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, stack_size));
+ BINARY_IMM32(ADD, stack_size, SLJIT_SP, 0);
- if ((arg_types & SLJIT_DEF_MASK) < SLJIT_ARG_TYPE_F32)
+ if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64)
return SLJIT_SUCCESS;
- single = ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F32);
+ single = ((arg_types & SLJIT_ARG_MASK) == SLJIT_ARG_TYPE_F32);
inst = (sljit_u8*)ensure_buf(compiler, 1 + 3);
FAIL_IF(!inst);
@@ -725,16 +836,399 @@ static sljit_s32 post_call_with_args(struct sljit_compiler *compiler,
return emit_sse2_load(compiler, single, SLJIT_FR0, SLJIT_MEM1(SLJIT_SP), 0);
}
+static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
+ sljit_s32 *extra_space, sljit_s32 arg_types,
+ sljit_s32 src, sljit_sw srcw)
+{
+ sljit_sw args_size, prev_args_size, saved_regs_size;
+ sljit_sw types, word_arg_count, float_arg_count;
+ sljit_sw stack_size, prev_stack_size, min_size, offset;
+ sljit_sw word_arg4_offset;
+ sljit_u8 r2_offset = 0;
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ sljit_u8 fast_call = (*extra_space & 0xff) == SLJIT_CALL;
+#endif
+ sljit_u8* inst;
+
+ ADJUST_LOCAL_OFFSET(src, srcw);
+ CHECK_EXTRA_REGS(src, srcw, (void)0);
+
+ saved_regs_size = (1 + (compiler->scratches > 9 ? (compiler->scratches - 9) : 0)
+ + (compiler->saveds <= 3 ? compiler->saveds : 3)) * SSIZE_OF(sw);
+
+ word_arg_count = 0;
+ float_arg_count = 0;
+ arg_types >>= SLJIT_ARG_SHIFT;
+ types = 0;
+ args_size = 0;
+
+ while (arg_types != 0) {
+ types = (types << SLJIT_ARG_SHIFT) | (arg_types & SLJIT_ARG_MASK);
+
+ switch (arg_types & SLJIT_ARG_MASK) {
+ case SLJIT_ARG_TYPE_F64:
+ args_size += SSIZE_OF(f64);
+ float_arg_count++;
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ args_size += SSIZE_OF(f32);
+ float_arg_count++;
+ break;
+ default:
+ word_arg_count++;
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (!fast_call || word_arg_count > 2)
+ args_size += SSIZE_OF(sw);
+#else
+ args_size += SSIZE_OF(sw);
+#endif
+ break;
+ }
+ arg_types >>= SLJIT_ARG_SHIFT;
+ }
+
+ if (args_size <= compiler->args_size
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ && (!(compiler->options & SLJIT_ENTER_CDECL) || args_size == 0 || !fast_call)
+#endif /* SLJIT_X86_32_FASTCALL */
+ && 1) {
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ *extra_space = fast_call ? 0 : args_size;
+ prev_args_size = compiler->args_size;
+ stack_size = prev_args_size + SSIZE_OF(sw) + saved_regs_size;
+#else /* !SLJIT_X86_32_FASTCALL */
+ *extra_space = 0;
+ stack_size = args_size + SSIZE_OF(sw) + saved_regs_size;
+#endif /* SLJIT_X86_32_FASTCALL */
+
+ offset = stack_size + compiler->local_size;
+
+ if (!(src & SLJIT_IMM) && src != SLJIT_R0) {
+ if (word_arg_count >= 1) {
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), 0, SLJIT_R0, 0);
+ r2_offset = sizeof(sljit_sw);
+ }
+ EMIT_MOV(compiler, SLJIT_R0, 0, src, srcw);
+ }
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (!(compiler->options & SLJIT_ENTER_CDECL)) {
+ if (!fast_call)
+ offset -= SSIZE_OF(sw);
+
+ if (word_arg_count >= 3) {
+ word_arg4_offset = SSIZE_OF(sw);
+
+ if (word_arg_count + float_arg_count >= 4) {
+ word_arg4_offset = SSIZE_OF(sw) + SSIZE_OF(sw);
+ if ((types & SLJIT_ARG_MASK) == SLJIT_ARG_TYPE_F64)
+ word_arg4_offset = SSIZE_OF(sw) + SSIZE_OF(f64);
+ }
+
+ /* In cdecl mode, at least one more word value must
+ * be present on the stack before the return address. */
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset - word_arg4_offset, SLJIT_R2, 0);
+ }
+
+ if (fast_call) {
+ if (args_size < prev_args_size) {
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), offset - prev_args_size - SSIZE_OF(sw));
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset - args_size - SSIZE_OF(sw), SLJIT_R2, 0);
+ }
+ } else if (prev_args_size > 0) {
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), offset - prev_args_size);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
+ }
+ }
+#endif /* SLJIT_X86_32_FASTCALL */
+
+ while (types != 0) {
+ switch (types & SLJIT_ARG_MASK) {
+ case SLJIT_ARG_TYPE_F64:
+ offset -= SSIZE_OF(f64);
+ FAIL_IF(emit_sse2_store(compiler, 0, SLJIT_MEM1(SLJIT_SP), offset, float_arg_count));
+ float_arg_count--;
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ offset -= SSIZE_OF(f32);
+ FAIL_IF(emit_sse2_store(compiler, 0, SLJIT_MEM1(SLJIT_SP), offset, float_arg_count));
+ float_arg_count--;
+ break;
+ default:
+ switch (word_arg_count) {
+ case 1:
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (fast_call) {
+ EMIT_MOV(compiler, SLJIT_R2, 0, r2_offset != 0 ? SLJIT_MEM1(SLJIT_SP) : SLJIT_R0, 0);
+ break;
+ }
+#endif
+ offset -= SSIZE_OF(sw);
+ if (r2_offset != 0) {
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), 0);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
+ } else
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R0, 0);
+ break;
+ case 2:
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (fast_call)
+ break;
+#endif
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R1, 0);
+ break;
+ case 3:
+ offset -= SSIZE_OF(sw);
+ break;
+ case 4:
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), compiler->scratches_offset);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
+ break;
+ }
+ word_arg_count--;
+ break;
+ }
+ types >>= SLJIT_ARG_SHIFT;
+ }
+
+ BINARY_IMM32(ADD, compiler->local_size, SLJIT_SP, 0);
+ FAIL_IF(emit_stack_frame_release(compiler));
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (args_size < prev_args_size)
+ BINARY_IMM32(ADD, prev_args_size - args_size, SLJIT_SP, 0);
+#endif
+
+ return SLJIT_SUCCESS;
+ }
+
+ stack_size = args_size + SSIZE_OF(sw);
+
+ if (word_arg_count >= 1 && !(src & SLJIT_IMM) && src != SLJIT_R0) {
+ r2_offset = SSIZE_OF(sw);
+ stack_size += SSIZE_OF(sw);
+ }
+
+ if (word_arg_count >= 3)
+ stack_size += SSIZE_OF(sw);
+
+ prev_args_size = 0;
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (!(compiler->options & SLJIT_ENTER_CDECL))
+ prev_args_size = compiler->args_size;
+#endif
+
+ prev_stack_size = prev_args_size + SSIZE_OF(sw) + saved_regs_size;
+ min_size = prev_stack_size + compiler->local_size;
+
+ word_arg4_offset = compiler->scratches_offset;
+
+ if (stack_size > min_size) {
+ BINARY_IMM32(SUB, stack_size - min_size, SLJIT_SP, 0);
+ if (src == SLJIT_MEM1(SLJIT_SP))
+ srcw += stack_size - min_size;
+ word_arg4_offset += stack_size - min_size;
+ }
+ else
+ stack_size = min_size;
+
+ if (word_arg_count >= 3) {
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), r2_offset, SLJIT_R2, 0);
+
+ if (word_arg_count >= 4)
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), word_arg4_offset);
+ }
+
+ if (!(src & SLJIT_IMM) && src != SLJIT_R0) {
+ if (word_arg_count >= 1) {
+ SLJIT_ASSERT(r2_offset == sizeof(sljit_sw));
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), 0, SLJIT_R0, 0);
+ }
+ EMIT_MOV(compiler, SLJIT_R0, 0, src, srcw);
+ }
+
+ /* Restore saved registers. */
+ offset = stack_size - prev_args_size - 2 * SSIZE_OF(sw);
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), offset);
+
+ if (compiler->saveds > 2 || compiler->scratches > 9) {
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_S2, 0, SLJIT_MEM1(SLJIT_SP), offset);
+ }
+ if (compiler->saveds > 1 || compiler->scratches > 10) {
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_S1, 0, SLJIT_MEM1(SLJIT_SP), offset);
+ }
+ if (compiler->saveds > 0 || compiler->scratches > 11) {
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_S0, 0, SLJIT_MEM1(SLJIT_SP), offset);
+ }
+
+ /* Copy fourth argument and return address. */
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (fast_call) {
+ offset = stack_size;
+ *extra_space = 0;
+
+ if (word_arg_count >= 4 && prev_args_size == 0) {
+ offset -= SSIZE_OF(sw);
+ inst = emit_x86_instruction(compiler, 1, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), offset);
+ FAIL_IF(!inst);
+ *inst = XCHG_r_rm;
+
+ SLJIT_ASSERT(args_size != prev_args_size);
+ } else {
+ if (word_arg_count >= 4) {
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
+ }
+
+ if (args_size != prev_args_size)
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), stack_size - prev_args_size - SSIZE_OF(sw));
+ }
+
+ if (args_size != prev_args_size)
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), stack_size - args_size - SSIZE_OF(sw), SLJIT_R2, 0);
+ } else {
+#endif /* SLJIT_X86_32_FASTCALL */
+ offset = stack_size - SSIZE_OF(sw);
+ *extra_space = args_size;
+
+ if (word_arg_count >= 4 && prev_args_size == SSIZE_OF(sw)) {
+ offset -= SSIZE_OF(sw);
+ inst = emit_x86_instruction(compiler, 1, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), offset);
+ FAIL_IF(!inst);
+ *inst = XCHG_r_rm;
+
+ SLJIT_ASSERT(prev_args_size > 0);
+ } else {
+ if (word_arg_count >= 4) {
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
+ }
+
+ if (prev_args_size > 0)
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), stack_size - prev_args_size - SSIZE_OF(sw));
+ }
+
+ /* Copy return address. */
+ if (prev_args_size > 0)
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), stack_size - SSIZE_OF(sw), SLJIT_R2, 0);
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ }
+#endif /* SLJIT_X86_32_FASTCALL */
+
+ while (types != 0) {
+ switch (types & SLJIT_ARG_MASK) {
+ case SLJIT_ARG_TYPE_F64:
+ offset -= SSIZE_OF(f64);
+ FAIL_IF(emit_sse2_store(compiler, 0, SLJIT_MEM1(SLJIT_SP), offset, float_arg_count));
+ float_arg_count--;
+ break;
+ case SLJIT_ARG_TYPE_F32:
+ offset -= SSIZE_OF(f32);
+ FAIL_IF(emit_sse2_store(compiler, 0, SLJIT_MEM1(SLJIT_SP), offset, float_arg_count));
+ float_arg_count--;
+ break;
+ default:
+ switch (word_arg_count) {
+ case 1:
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (fast_call) {
+ EMIT_MOV(compiler, SLJIT_R2, 0, r2_offset != 0 ? SLJIT_MEM1(SLJIT_SP) : SLJIT_R0, 0);
+ break;
+ }
+#endif
+ offset -= SSIZE_OF(sw);
+ if (r2_offset != 0) {
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), 0);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
+ } else
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R0, 0);
+ break;
+ case 2:
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ if (fast_call)
+ break;
+#endif
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R1, 0);
+ break;
+ case 3:
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), r2_offset);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
+ break;
+ }
+ word_arg_count--;
+ break;
+ }
+ types >>= SLJIT_ARG_SHIFT;
+ }
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ /* Skip return address. */
+ if (fast_call)
+ offset -= SSIZE_OF(sw);
+#endif
+
+ SLJIT_ASSERT(offset >= 0);
+
+ if (offset == 0)
+ return SLJIT_SUCCESS;
+
+ BINARY_IMM32(ADD, offset, SLJIT_SP, 0);
+ return SLJIT_SUCCESS;
+}
+
+static sljit_s32 emit_tail_call_end(struct sljit_compiler *compiler, sljit_s32 extra_space)
+{
+ /* Called when stack consumption cannot be reduced to 0. */
+ sljit_u8 *inst;
+
+ BINARY_IMM32(ADD, extra_space, SLJIT_SP, 0);
+
+ inst = (sljit_u8*)ensure_buf(compiler, 1 + 1);
+ FAIL_IF(!inst);
+ INC_SIZE(1);
+ RET();
+
+ return SLJIT_SUCCESS;
+}
+
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
sljit_s32 arg_types)
{
struct sljit_jump *jump;
- sljit_s32 stack_size = 0;
+ sljit_sw stack_size = 0;
sljit_s32 word_arg_count;
CHECK_ERROR_PTR();
CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
+ if (type & SLJIT_CALL_RETURN) {
+ stack_size = type;
+ PTR_FAIL_IF(tail_call_with_args(compiler, &stack_size, arg_types, SLJIT_IMM, 0));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ if (stack_size == 0) {
+ type = SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP);
+ return sljit_emit_jump(compiler, type);
+ }
+
+ jump = sljit_emit_jump(compiler, type);
+ PTR_FAIL_IF(jump == NULL);
+
+ PTR_FAIL_IF(emit_tail_call_end(compiler, stack_size));
+ return jump;
+ }
+
#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
if ((type & 0xff) == SLJIT_CALL) {
stack_size = c_fast_call_get_stack_size(arg_types, &word_arg_count);
@@ -772,7 +1266,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
sljit_s32 arg_types,
sljit_s32 src, sljit_sw srcw)
{
- sljit_s32 stack_size = 0;
+ sljit_sw stack_size = 0;
sljit_s32 word_arg_count;
#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
sljit_s32 swap_args;
@@ -781,6 +1275,27 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
CHECK_ERROR();
CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw));
+ if (type & SLJIT_CALL_RETURN) {
+ stack_size = type;
+ FAIL_IF(tail_call_with_args(compiler, &stack_size, arg_types, src, srcw));
+
+ if (!(src & SLJIT_IMM)) {
+ src = SLJIT_R0;
+ srcw = 0;
+ }
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ if (stack_size == 0)
+ return sljit_emit_ijump(compiler, SLJIT_JUMP, src, srcw);
+
+ FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
+ return emit_tail_call_end(compiler, stack_size);
+ }
+
#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
SLJIT_ASSERT(reg_map[SLJIT_R0] == 0 && reg_map[SLJIT_R2] == 1 && SLJIT_R0 == 1 && SLJIT_R2 == 3);
@@ -800,7 +1315,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
FAIL_IF(c_fast_call_with_args(compiler, arg_types, stack_size, word_arg_count, swap_args));
- compiler->saveds_offset += stack_size;
+ compiler->scratches_offset += stack_size;
compiler->locals_offset += stack_size;
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
@@ -809,7 +1324,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
#endif
FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
- compiler->saveds_offset -= stack_size;
+ compiler->scratches_offset -= stack_size;
compiler->locals_offset -= stack_size;
return post_call_with_args(compiler, arg_types, 0);
@@ -819,7 +1334,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
stack_size = cdecl_call_get_stack_size(compiler, arg_types, &word_arg_count);
FAIL_IF(cdecl_call_with_args(compiler, arg_types, stack_size, word_arg_count));
- compiler->saveds_offset += stack_size;
+ compiler->scratches_offset += stack_size;
compiler->locals_offset += stack_size;
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
@@ -828,7 +1343,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
#endif
FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
- compiler->saveds_offset -= stack_size;
+ compiler->scratches_offset -= stack_size;
compiler->locals_offset -= stack_size;
return post_call_with_args(compiler, arg_types, stack_size);
@@ -844,10 +1359,6 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *
CHECK_EXTRA_REGS(dst, dstw, (void)0);
- /* For UNUSED dst. Uncommon, but possible. */
- if (dst == SLJIT_UNUSED)
- dst = TMP_REG1;
-
if (FAST_IS_REG(dst)) {
/* Unused dest is possible here. */
inst = (sljit_u8*)ensure_buf(compiler, 1 + 1);
@@ -895,34 +1406,18 @@ static sljit_s32 emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src
static sljit_s32 skip_frames_before_return(struct sljit_compiler *compiler)
{
- sljit_s32 size, saved_size;
- sljit_s32 has_f64_aligment;
+ sljit_sw size;
/* Don't adjust shadow stack if it isn't enabled. */
- if (!cpu_has_shadow_stack ())
+ if (!cpu_has_shadow_stack())
return SLJIT_SUCCESS;
- SLJIT_ASSERT(compiler->args >= 0);
+ SLJIT_ASSERT(compiler->args_size >= 0);
SLJIT_ASSERT(compiler->local_size > 0);
-#if !defined(__APPLE__)
- has_f64_aligment = compiler->options & SLJIT_F64_ALIGNMENT;
-#else
- has_f64_aligment = 0;
-#endif
-
size = compiler->local_size;
- saved_size = (1 + (compiler->scratches > 9 ? (compiler->scratches - 9) : 0) + (compiler->saveds <= 3 ? compiler->saveds : 3)) * sizeof(sljit_uw);
- if (has_f64_aligment) {
- /* mov TMP_REG1, [esp + local_size]. */
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), size);
- /* mov TMP_REG1, [TMP_REG1+ saved_size]. */
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(TMP_REG1), saved_size);
- /* Move return address to [esp]. */
- EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), 0, TMP_REG1, 0);
- size = 0;
- } else
- size += saved_size;
-
- return adjust_shadow_stack(compiler, SLJIT_UNUSED, 0, SLJIT_SP, size);
+ size += (1 + (compiler->scratches > 9 ? (compiler->scratches - 9) : 0)
+ + (compiler->saveds <= 3 ? compiler->saveds : 3)) * SSIZE_OF(sw);
+
+ return adjust_shadow_stack(compiler, SLJIT_MEM1(SLJIT_SP), size);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 05:33:50 +0000