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Diffstat (limited to 'thirdparty/pcre2/src/sljit/sljitNativeX86_32.c')
-rw-r--r--thirdparty/pcre2/src/sljit/sljitNativeX86_32.c997
1 files changed, 436 insertions, 561 deletions
diff --git a/thirdparty/pcre2/src/sljit/sljitNativeX86_32.c b/thirdparty/pcre2/src/sljit/sljitNativeX86_32.c
index b9a7b39789..08da03026d 100644
--- a/thirdparty/pcre2/src/sljit/sljitNativeX86_32.c
+++ b/thirdparty/pcre2/src/sljit/sljitNativeX86_32.c
@@ -80,21 +80,28 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_uw
if (b & SLJIT_MEM) {
if (!(b & REG_MASK))
inst_size += sizeof(sljit_sw);
- else if (immb != 0 && !(b & OFFS_REG_MASK)) {
- /* Immediate operand. */
- if (immb <= 127 && immb >= -128)
- inst_size += sizeof(sljit_s8);
- else
- inst_size += sizeof(sljit_sw);
- }
- else if (reg_map[b & REG_MASK] == 5)
- inst_size += sizeof(sljit_s8);
+ else {
+ if (immb != 0 && !(b & OFFS_REG_MASK)) {
+ /* Immediate operand. */
+ if (immb <= 127 && immb >= -128)
+ inst_size += sizeof(sljit_s8);
+ else
+ inst_size += sizeof(sljit_sw);
+ }
+ else if (reg_map[b & REG_MASK] == 5) {
+ /* Swap registers if possible. */
+ if ((b & OFFS_REG_MASK) && (immb & 0x3) == 0 && reg_map[OFFS_REG(b)] != 5)
+ b = SLJIT_MEM | OFFS_REG(b) | TO_OFFS_REG(b & REG_MASK);
+ else
+ inst_size += sizeof(sljit_s8);
+ }
- if ((b & REG_MASK) == SLJIT_SP && !(b & OFFS_REG_MASK))
- b |= TO_OFFS_REG(SLJIT_SP);
+ if (reg_map[b & REG_MASK] == 4 && !(b & OFFS_REG_MASK))
+ b |= TO_OFFS_REG(SLJIT_SP);
- if (b & OFFS_REG_MASK)
- inst_size += 1; /* SIB byte. */
+ if (b & OFFS_REG_MASK)
+ inst_size += 1; /* SIB byte. */
+ }
}
/* Calculate size of a. */
@@ -107,9 +114,9 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_uw
inst_size += 4;
}
else if (flags & EX86_SHIFT_INS) {
- imma &= 0x1f;
+ SLJIT_ASSERT(imma <= 0x1f);
if (imma != 1) {
- inst_size ++;
+ inst_size++;
flags |= EX86_BYTE_ARG;
}
} else if (flags & EX86_BYTE_ARG)
@@ -165,7 +172,7 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_uw
} 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 (!(b & OFFS_REG_MASK) || (b & OFFS_REG_MASK) == TO_OFFS_REG(SLJIT_SP)) {
if (immb != 0 || reg_map_b == 5) {
if (immb <= 127 && immb >= -128)
*buf_ptr |= 0x40;
@@ -190,8 +197,14 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_uw
}
}
else {
+ if (reg_map_b == 5)
+ *buf_ptr |= 0x40;
+
*buf_ptr++ |= 0x04;
*buf_ptr++ = U8(reg_map_b | (reg_map[OFFS_REG(b)] << 3) | (immb << 6));
+
+ if (reg_map_b == 5)
+ *buf_ptr++ = 0;
}
}
else {
@@ -243,19 +256,16 @@ static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_
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
+#define ENTER_TMP_TO_R4 0x00001
+#define ENTER_TMP_TO_S 0x00002
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_s32 size, args_size, types, status;
+ sljit_s32 kept_saveds_count = SLJIT_KEPT_SAVEDS_COUNT(options);
sljit_u8 *inst;
#ifdef _WIN32
sljit_s32 r2_offset = -1;
@@ -271,108 +281,97 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
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)
+ if (options & SLJIT_ENTER_REG_ARG) {
+ args_size = 3 * SSIZE_OF(sw);
+
+ while (arg_types) {
+ if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64) {
+ word_arg_count++;
+ 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;
+ arg_types >>= SLJIT_ARG_SHIFT;
}
- types >>= SLJIT_ARG_SHIFT;
- }
- args_size -= SSIZE_OF(sw);
- compiler->args_size = args_size;
+ compiler->args_size = 0;
+ } else {
+ types = arg_types;
+ saved_arg_count = 0;
+ float_arg_count = 0;
+ args_size = SSIZE_OF(sw);
+ 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++;
- /* [esp+0] for saving temporaries and function calls. */
- locals_offset = 2 * SSIZE_OF(sw);
+ if (!(types & SLJIT_ARG_TYPE_SCRATCH_REG))
+ saved_arg_count++;
-#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
+ if (word_arg_count == 4) {
+ if (types & SLJIT_ARG_TYPE_SCRATCH_REG) {
+ status |= ENTER_TMP_TO_R4;
+ arg_types &= ~(SLJIT_ARG_FULL_MASK << 3 * SLJIT_ARG_SHIFT);
+ } else if (saved_arg_count == 4) {
+ status |= ENTER_TMP_TO_S;
+ arg_types &= ~(SLJIT_ARG_FULL_MASK << 3 * SLJIT_ARG_SHIFT);
+ }
+ }
- compiler->scratches_offset = locals_offset;
+ args_size += SSIZE_OF(sw);
+ break;
+ }
+ types >>= SLJIT_ARG_SHIFT;
+ }
- if (scratches > 3)
- locals_offset += ((scratches > (3 + 6)) ? 6 : (scratches - 3)) * SSIZE_OF(sw);
+ args_size -= SSIZE_OF(sw);
+ compiler->args_size = args_size;
+ }
- if (saveds > 3)
- locals_offset += (saveds - 3) * SSIZE_OF(sw);
+ size = (scratches > 9 ? (scratches - 9) : 0) + (saveds <= 3 ? saveds : 3) - kept_saveds_count;
+ if (!(options & SLJIT_ENTER_REG_ARG))
+ size++;
- compiler->locals_offset = locals_offset;
+ if (size != 0) {
+ inst = (sljit_u8*)ensure_buf(compiler, (sljit_uw)(size + 1));
+ FAIL_IF(!inst);
- 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);
- 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]);
+ if (!(options & SLJIT_ENTER_REG_ARG))
+ PUSH_REG(reg_map[TMP_REG1]);
- size *= SSIZE_OF(sw);
+ if ((saveds > 2 && kept_saveds_count <= 2) || scratches > 9)
+ PUSH_REG(reg_map[SLJIT_S2]);
+ if ((saveds > 1 && kept_saveds_count <= 1) || scratches > 10)
+ PUSH_REG(reg_map[SLJIT_S1]);
+ if ((saveds > 0 && kept_saveds_count == 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);
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;
+ local_size = ((SLJIT_LOCALS_OFFSET_BASE + 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;
@@ -386,64 +385,27 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
break;
default:
word_arg_count++;
+ SLJIT_ASSERT(word_arg_count <= 3 || (word_arg_count == 4 && !(status & (ENTER_TMP_TO_R4 | ENTER_TMP_TO_S))));
-#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
+ 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));
+ EMIT_MOV(compiler, word_arg_count, 0, SLJIT_MEM1(SLJIT_SP), args_size);
- if (saved_arg_count <= 3)
- EMIT_MOV(compiler, SLJIT_S0 - saved_arg_count, 0, SLJIT_MEM1(SLJIT_SP), args_size);
+ } else {
+ 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
@@ -459,6 +421,18 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
BINARY_IMM32(OR, 0, SLJIT_MEM1(SLJIT_SP), -4096 * 3);
}
else {
+ if (options & SLJIT_ENTER_REG_ARG) {
+ SLJIT_ASSERT(r2_offset == -1);
+
+ inst = (sljit_u8*)ensure_buf(compiler, (sljit_uw)(1 + 1));
+ FAIL_IF(!inst);
+ INC_SIZE(1);
+ PUSH_REG(reg_map[SLJIT_R2]);
+
+ local_size -= SSIZE_OF(sw);
+ r2_offset = local_size;
+ }
+
EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_IMM, local_size >> 12);
BINARY_IMM32(OR, 0, SLJIT_MEM1(SLJIT_SP), -4096);
@@ -490,8 +464,20 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
#endif /* _WIN32 */
+ size = SLJIT_LOCALS_OFFSET_BASE - SSIZE_OF(sw);
+ kept_saveds_count = SLJIT_R3 - kept_saveds_count;
+
+ while (saved_arg_count > 3) {
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), size, kept_saveds_count, 0);
+ kept_saveds_count++;
+ size -= SSIZE_OF(sw);
+ saved_arg_count--;
+ }
+
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);
+ if (status & ENTER_TMP_TO_R4)
+ size = 2 * SSIZE_OF(sw);
+
EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), size, TMP_REG1, 0);
}
@@ -502,10 +488,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *comp
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, locals_offset;
-#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- sljit_s32 word_arg_count = 0;
-#endif
+ sljit_s32 args_size;
CHECK_ERROR();
CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
@@ -513,87 +496,88 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *comp
arg_types >>= SLJIT_ARG_SHIFT;
args_size = 0;
- 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:
-#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- if (word_arg_count >= 2)
+
+ if (!(options & SLJIT_ENTER_REG_ARG)) {
+ 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:
args_size += SSIZE_OF(sw);
- word_arg_count++;
-#else
- args_size += SSIZE_OF(sw);
-#endif
- break;
+ break;
+ }
+ arg_types >>= SLJIT_ARG_SHIFT;
}
- arg_types >>= SLJIT_ARG_SHIFT;
}
compiler->args_size = args_size;
- /* [esp+0] for saving temporaries and function calls. */
- locals_offset = 2 * SSIZE_OF(sw);
+ /* [esp+0] for saving temporaries and for function calls. */
-#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
+ saveds = (1 + (scratches > 9 ? (scratches - 9) : 0) + (saveds <= 3 ? saveds : 3) - SLJIT_KEPT_SAVEDS_COUNT(options)) * SSIZE_OF(sw);
- compiler->scratches_offset = locals_offset;
+ /* Saving ebp. */
+ if (!(options & SLJIT_ENTER_REG_ARG))
+ saveds += SSIZE_OF(sw);
- 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;
+ compiler->local_size = ((SLJIT_LOCALS_OFFSET_BASE + local_size + saveds + 0xf) & ~0xf) - saveds;
return SLJIT_SUCCESS;
}
-static sljit_s32 emit_stack_frame_release(struct sljit_compiler *compiler)
+static sljit_s32 emit_stack_frame_release(struct sljit_compiler *compiler, sljit_s32 is_return_to)
{
+ sljit_s32 kept_saveds_count = SLJIT_KEPT_SAVEDS_COUNT(compiler->options);
+ sljit_s32 local_size, saveds;
sljit_uw size;
sljit_u8 *inst;
- size = (sljit_uw)(1 + (compiler->scratches > 9 ? (compiler->scratches - 9) : 0) +
- (compiler->saveds <= 3 ? compiler->saveds : 3));
+ size = (sljit_uw)((compiler->scratches > 9 ? (compiler->scratches - 9) : 0) +
+ (compiler->saveds <= 3 ? compiler->saveds : 3) - kept_saveds_count);
+
+ local_size = compiler->local_size;
+
+ if (!(compiler->options & SLJIT_ENTER_REG_ARG))
+ size++;
+ else if (is_return_to && size == 0) {
+ local_size += SSIZE_OF(sw);
+ is_return_to = 0;
+ }
+
+ if (local_size > 0)
+ BINARY_IMM32(ADD, local_size, SLJIT_SP, 0);
+
+ if (size == 0)
+ return SLJIT_SUCCESS;
+
inst = (sljit_u8*)ensure_buf(compiler, 1 + size);
FAIL_IF(!inst);
INC_SIZE(size);
- if (compiler->saveds > 0 || compiler->scratches > 11)
+ saveds = compiler->saveds;
+
+ if ((saveds > 0 && kept_saveds_count == 0) || compiler->scratches > 11)
POP_REG(reg_map[SLJIT_S0]);
- if (compiler->saveds > 1 || compiler->scratches > 10)
+ if ((saveds > 1 && kept_saveds_count <= 1) || compiler->scratches > 10)
POP_REG(reg_map[SLJIT_S1]);
- if (compiler->saveds > 2 || compiler->scratches > 9)
+ if ((saveds > 2 && kept_saveds_count <= 2) || compiler->scratches > 9)
POP_REG(reg_map[SLJIT_S2]);
- POP_REG(reg_map[TMP_REG1]);
+
+ if (!(compiler->options & SLJIT_ENTER_REG_ARG))
+ POP_REG(reg_map[TMP_REG1]);
+
+ if (is_return_to)
+ BINARY_IMM32(ADD, sizeof(sljit_sw), SLJIT_SP, 0);
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();
@@ -602,143 +586,45 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_void(struct sljit_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));
+ FAIL_IF(emit_stack_frame_release(compiler, 0));
- 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);
+ inst = (sljit_u8*)ensure_buf(compiler, 1 + 1);
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
-
+ INC_SIZE(1);
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 += 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 += SSIZE_OF(sw);
- break;
- }
-
- arg_types >>= SLJIT_ARG_SHIFT;
- }
-
- if (word_arg_count_ptr)
- *word_arg_count_ptr = word_arg_count;
-
- return stack_size;
-}
-
-static sljit_s32 c_fast_call_with_args(struct sljit_compiler *compiler,
- sljit_s32 arg_types, sljit_sw stack_size, sljit_s32 word_arg_count, sljit_s32 swap_args)
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_to(struct sljit_compiler *compiler,
+ sljit_s32 src, sljit_sw srcw)
{
- sljit_u8 *inst;
- sljit_s32 float_arg_count;
+ sljit_s32 src_r;
- if (stack_size == SSIZE_OF(sw) && word_arg_count == 3) {
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 1);
- FAIL_IF(!inst);
- INC_SIZE(1);
- PUSH_REG(reg_map[SLJIT_R2]);
- }
- else if (stack_size > 0) {
- if (word_arg_count >= 4)
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), compiler->scratches_offset);
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_return_to(compiler, src, srcw));
- BINARY_IMM32(SUB, stack_size, SLJIT_SP, 0);
+ if ((src & SLJIT_MEM) || (src > SLJIT_R2 && src <= (SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options)))) {
+ ADJUST_LOCAL_OFFSET(src, srcw);
+ CHECK_EXTRA_REGS(src, srcw, (void)0);
- stack_size = 0;
- arg_types >>= SLJIT_ARG_SHIFT;
- word_arg_count = 0;
- float_arg_count = 0;
- while (arg_types) {
- 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 += 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 += SSIZE_OF(sw);
- }
- else if (word_arg_count == 4) {
- EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), stack_size, TMP_REG1, 0);
- stack_size += SSIZE_OF(sw);
- }
- break;
- }
+ src_r = (compiler->options & SLJIT_ENTER_REG_ARG) ? TMP_REG1 : SLJIT_R1;
- arg_types >>= SLJIT_ARG_SHIFT;
- }
+ EMIT_MOV(compiler, src_r, 0, src, srcw);
+ src = src_r;
+ srcw = 0;
}
- if (word_arg_count > 0) {
- if (swap_args) {
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 1);
- FAIL_IF(!inst);
- INC_SIZE(1);
-
- *inst++ = U8(XCHG_EAX_r | reg_map[SLJIT_R2]);
- }
- else {
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 2);
- FAIL_IF(!inst);
- INC_SIZE(2);
-
- *inst++ = MOV_r_rm;
- *inst++ = U8(MOD_REG | (reg_map[SLJIT_R2] << 3) | reg_map[SLJIT_R0]);
- }
- }
+ FAIL_IF(emit_stack_frame_release(compiler, 1));
- return SLJIT_SUCCESS;
+ SLJIT_SKIP_CHECKS(compiler);
+ return sljit_emit_ijump(compiler, SLJIT_JUMP, src, srcw);
}
-#endif
+/* --------------------------------------------------------------------- */
+/* Call / return instructions */
+/* --------------------------------------------------------------------- */
-static sljit_s32 cdecl_call_get_stack_size(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *word_arg_count_ptr)
+static sljit_s32 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;
@@ -765,25 +651,31 @@ static sljit_s32 cdecl_call_get_stack_size(struct sljit_compiler *compiler, slji
if (word_arg_count_ptr)
*word_arg_count_ptr = word_arg_count;
- if (stack_size <= compiler->scratches_offset)
+ if (stack_size <= 4 * SSIZE_OF(sw))
return 0;
- return ((stack_size - compiler->scratches_offset + 0xf) & ~0xf);
+ return ((stack_size - (4 * SSIZE_OF(sw)) + 0xf) & ~0xf);
}
-static sljit_s32 cdecl_call_with_args(struct sljit_compiler *compiler,
- sljit_s32 arg_types, sljit_sw stack_size, sljit_s32 word_arg_count)
+static sljit_s32 call_with_args(struct sljit_compiler *compiler,
+ sljit_s32 arg_types, sljit_sw stack_size, sljit_s32 word_arg_count, sljit_s32 keep_tmp1)
{
- sljit_s32 float_arg_count = 0;
+ sljit_s32 float_arg_count = 0, arg4_reg = 0, arg_offset;
sljit_u8 *inst;
- if (word_arg_count >= 4)
- EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), compiler->scratches_offset);
+ if (word_arg_count >= 4) {
+ arg4_reg = SLJIT_R0;
+
+ if (!keep_tmp1) {
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), 2 * SSIZE_OF(sw));
+ arg4_reg = TMP_REG1;
+ }
+ }
if (stack_size > 0)
BINARY_IMM32(SUB, stack_size, SLJIT_SP, 0);
- stack_size = 0;
+ arg_offset = 0;
word_arg_count = 0;
arg_types >>= SLJIT_ARG_SHIFT;
@@ -791,18 +683,22 @@ static sljit_s32 cdecl_call_with_args(struct sljit_compiler *compiler,
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 += SSIZE_OF(f64);
+ FAIL_IF(emit_sse2_store(compiler, 0, SLJIT_MEM1(SLJIT_SP), arg_offset, float_arg_count));
+ arg_offset += 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);
+ FAIL_IF(emit_sse2_store(compiler, 1, SLJIT_MEM1(SLJIT_SP), arg_offset, float_arg_count));
+ arg_offset += 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 += SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), arg_offset, (word_arg_count >= 4) ? arg4_reg : word_arg_count, 0);
+
+ if (word_arg_count == 1 && arg4_reg == SLJIT_R0)
+ EMIT_MOV(compiler, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_SP), 2 * SSIZE_OF(sw) + stack_size);
+
+ arg_offset += SSIZE_OF(sw);
break;
}
@@ -840,21 +736,19 @@ 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 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_s32 kept_saveds_count = SLJIT_KEPT_SAVEDS_COUNT(compiler->options);
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);
+ + (compiler->saveds <= 3 ? compiler->saveds : 3) - kept_saveds_count) * SSIZE_OF(sw);
word_arg_count = 0;
float_arg_count = 0;
@@ -876,30 +770,15 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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 */
+ if (args_size <= compiler->args_size) {
*extra_space = 0;
stack_size = args_size + SSIZE_OF(sw) + saved_regs_size;
-#endif /* SLJIT_X86_32_FASTCALL */
offset = stack_size + compiler->local_size;
@@ -911,37 +790,6 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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:
@@ -957,12 +805,6 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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);
@@ -971,10 +813,6 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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;
@@ -983,7 +821,7 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
break;
case 4:
offset -= SSIZE_OF(sw);
- EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), compiler->scratches_offset);
+ EMIT_MOV(compiler, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), 2 * SSIZE_OF(sw));
EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
break;
}
@@ -993,15 +831,7 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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;
+ return emit_stack_frame_release(compiler, 0);
}
stack_size = args_size + SSIZE_OF(sw);
@@ -1014,16 +844,10 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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;
+ prev_stack_size = SSIZE_OF(sw) + saved_regs_size;
min_size = prev_stack_size + compiler->local_size;
- word_arg4_offset = compiler->scratches_offset;
+ word_arg4_offset = 2 * SSIZE_OF(sw);
if (stack_size > min_size) {
BINARY_IMM32(SUB, stack_size - min_size, SLJIT_SP, 0);
@@ -1050,75 +874,30 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
}
/* Restore saved registers. */
- offset = stack_size - prev_args_size - 2 * SSIZE_OF(sw);
+ offset = stack_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) {
+ if ((compiler->saveds > 1 && kept_saveds_count <= 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) {
+ if ((compiler->saveds > 0 && kept_saveds_count == 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;
+ 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)
+ if (word_arg_count >= 4) {
+ offset -= SSIZE_OF(sw);
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, SLJIT_R2, 0);
}
-#endif /* SLJIT_X86_32_FASTCALL */
while (types != 0) {
switch (types & SLJIT_ARG_MASK) {
@@ -1135,12 +914,6 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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);
@@ -1149,10 +922,6 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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;
@@ -1168,12 +937,6 @@ static sljit_s32 tail_call_with_args(struct sljit_compiler *compiler,
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)
@@ -1198,6 +961,38 @@ static sljit_s32 emit_tail_call_end(struct sljit_compiler *compiler, sljit_s32 e
return SLJIT_SUCCESS;
}
+static sljit_s32 tail_call_reg_arg_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
+{
+ sljit_s32 word_arg_count = 0;
+ sljit_s32 kept_saveds_count, offset;
+
+ arg_types >>= SLJIT_ARG_SHIFT;
+
+ while (arg_types) {
+ if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64)
+ word_arg_count++;
+
+ arg_types >>= SLJIT_ARG_SHIFT;
+ }
+
+ if (word_arg_count < 4)
+ return SLJIT_SUCCESS;
+
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), 2 * SSIZE_OF(sw));
+
+ kept_saveds_count = SLJIT_KEPT_SAVEDS_COUNT(compiler->options);
+ offset = compiler->local_size + 3 * SSIZE_OF(sw);
+
+ if ((compiler->saveds > 0 && kept_saveds_count == 0) || compiler->scratches > 11)
+ offset += SSIZE_OF(sw);
+ if ((compiler->saveds > 1 && kept_saveds_count <= 1) || compiler->scratches > 10)
+ offset += SSIZE_OF(sw);
+ if ((compiler->saveds > 2 && kept_saveds_count <= 2) || compiler->scratches > 9)
+ offset += SSIZE_OF(sw);
+
+ return emit_mov(compiler, SLJIT_MEM1(SLJIT_SP), offset, TMP_REG1, 0);
+}
+
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
sljit_s32 arg_types)
{
@@ -1209,18 +1004,21 @@ SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compile
CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
if (type & SLJIT_CALL_RETURN) {
+ if ((type & 0xff) == SLJIT_CALL_REG_ARG) {
+ PTR_FAIL_IF(tail_call_reg_arg_with_args(compiler, arg_types));
+ PTR_FAIL_IF(emit_stack_frame_release(compiler, 0));
+
+ SLJIT_SKIP_CHECKS(compiler);
+ return sljit_emit_jump(compiler, SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP));
+ }
+
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
+ SLJIT_SKIP_CHECKS(compiler);
- if (stack_size == 0) {
- type = SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP);
- return sljit_emit_jump(compiler, type);
- }
+ if (stack_size == 0)
+ return sljit_emit_jump(compiler, SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP));
jump = sljit_emit_jump(compiler, type);
PTR_FAIL_IF(jump == NULL);
@@ -1229,32 +1027,15 @@ SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compile
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);
- PTR_FAIL_IF(c_fast_call_with_args(compiler, arg_types, stack_size, word_arg_count, 0));
-
-#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
- || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
- compiler->skip_checks = 1;
-#endif
-
- jump = sljit_emit_jump(compiler, type);
- PTR_FAIL_IF(jump == NULL);
-
- PTR_FAIL_IF(post_call_with_args(compiler, arg_types, 0));
- return jump;
+ if ((type & 0xff) == SLJIT_CALL_REG_ARG) {
+ SLJIT_SKIP_CHECKS(compiler);
+ return sljit_emit_jump(compiler, type);
}
-#endif
-
- stack_size = cdecl_call_get_stack_size(compiler, arg_types, &word_arg_count);
- PTR_FAIL_IF(cdecl_call_with_args(compiler, arg_types, stack_size, word_arg_count));
-#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
- || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
- compiler->skip_checks = 1;
-#endif
+ stack_size = call_get_stack_size(arg_types, &word_arg_count);
+ PTR_FAIL_IF(call_with_args(compiler, arg_types, stack_size, word_arg_count, 0));
+ SLJIT_SKIP_CHECKS(compiler);
jump = sljit_emit_jump(compiler, type);
PTR_FAIL_IF(jump == NULL);
@@ -1268,14 +1049,29 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
{
sljit_sw stack_size = 0;
sljit_s32 word_arg_count;
-#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
- sljit_s32 swap_args;
-#endif
CHECK_ERROR();
CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw));
if (type & SLJIT_CALL_RETURN) {
+ if ((type & 0xff) == SLJIT_CALL_REG_ARG) {
+ FAIL_IF(tail_call_reg_arg_with_args(compiler, arg_types));
+
+ if ((src & SLJIT_MEM) || (src > SLJIT_R2 && src <= (SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options)))) {
+ ADJUST_LOCAL_OFFSET(src, srcw);
+ CHECK_EXTRA_REGS(src, srcw, (void)0);
+
+ EMIT_MOV(compiler, TMP_REG1, 0, src, srcw);
+ src = TMP_REG1;
+ srcw = 0;
+ }
+
+ FAIL_IF(emit_stack_frame_release(compiler, 0));
+
+ SLJIT_SKIP_CHECKS(compiler);
+ return sljit_emit_ijump(compiler, SLJIT_JUMP, src, srcw);
+ }
+
stack_size = type;
FAIL_IF(tail_call_with_args(compiler, &stack_size, arg_types, src, srcw));
@@ -1284,10 +1080,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
srcw = 0;
}
-#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
- || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
- compiler->skip_checks = 1;
-#endif
+ SLJIT_SKIP_CHECKS(compiler);
if (stack_size == 0)
return sljit_emit_ijump(compiler, SLJIT_JUMP, src, srcw);
@@ -1296,57 +1089,57 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi
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);
+ if ((type & 0xff) == SLJIT_CALL_REG_ARG) {
+ SLJIT_SKIP_CHECKS(compiler);
+ return sljit_emit_ijump(compiler, type, src, srcw);
+ }
- if ((type & 0xff) == SLJIT_CALL) {
- stack_size = c_fast_call_get_stack_size(arg_types, &word_arg_count);
- swap_args = 0;
+ ADJUST_LOCAL_OFFSET(src, srcw);
+ CHECK_EXTRA_REGS(src, srcw, (void)0);
- if (word_arg_count > 0) {
- if ((src & REG_MASK) == SLJIT_R2 || OFFS_REG(src) == SLJIT_R2) {
- swap_args = 1;
- if (((src & REG_MASK) | 0x2) == SLJIT_R2)
- src ^= 0x2;
- if ((OFFS_REG(src) | 0x2) == SLJIT_R2)
- src ^= TO_OFFS_REG(0x2);
- }
- }
+ if (src & SLJIT_MEM) {
+ EMIT_MOV(compiler, TMP_REG1, 0, src, srcw);
+ src = TMP_REG1;
+ srcw = 0;
+ }
- FAIL_IF(c_fast_call_with_args(compiler, arg_types, stack_size, word_arg_count, swap_args));
+ stack_size = call_get_stack_size(arg_types, &word_arg_count);
+ FAIL_IF(call_with_args(compiler, arg_types, stack_size, word_arg_count, src == TMP_REG1));
- compiler->scratches_offset += stack_size;
- compiler->locals_offset += stack_size;
+ if (stack_size > 0 && src == SLJIT_MEM1(SLJIT_SP))
+ srcw += stack_size;
-#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
- || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
- compiler->skip_checks = 1;
-#endif
- FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
+ SLJIT_SKIP_CHECKS(compiler);
+ FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
+
+ return post_call_with_args(compiler, arg_types, stack_size);
+}
- compiler->scratches_offset -= stack_size;
- compiler->locals_offset -= stack_size;
+static SLJIT_INLINE sljit_s32 emit_fmov_before_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
+{
+ sljit_u8* inst;
- return post_call_with_args(compiler, arg_types, 0);
- }
-#endif
+ if (compiler->options & SLJIT_ENTER_REG_ARG) {
+ if (src == SLJIT_FR0)
+ return SLJIT_SUCCESS;
- 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));
+ SLJIT_SKIP_CHECKS(compiler);
+ return sljit_emit_fop1(compiler, op, SLJIT_RETURN_FREG, 0, src, srcw);
+ }
- compiler->scratches_offset += stack_size;
- compiler->locals_offset += stack_size;
+ if (FAST_IS_REG(src)) {
+ FAIL_IF(emit_sse2_store(compiler, op & SLJIT_32, SLJIT_MEM1(SLJIT_SP), 0, src));
-#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
- || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
- compiler->skip_checks = 1;
-#endif
- FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
+ src = SLJIT_MEM1(SLJIT_SP);
+ srcw = 0;
+ } else {
+ ADJUST_LOCAL_OFFSET(src, srcw);
+ }
- compiler->scratches_offset -= stack_size;
- compiler->locals_offset -= stack_size;
+ inst = emit_x86_instruction(compiler, 1 | EX86_SSE2_OP1, 0, 0, src, srcw);
+ *inst = (op & SLJIT_32) ? FLDS : FLDL;
- return post_call_with_args(compiler, arg_types, stack_size);
+ return SLJIT_SUCCESS;
}
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
@@ -1404,6 +1197,88 @@ static sljit_s32 emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src
return SLJIT_SUCCESS;
}
+/* --------------------------------------------------------------------- */
+/* Other operations */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_mem(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 reg,
+ sljit_s32 mem, sljit_sw memw)
+{
+ sljit_u8* inst;
+ sljit_s32 i, next, reg_idx, offset;
+ sljit_u8 regs[2];
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw));
+
+ if (!(reg & REG_PAIR_MASK))
+ return sljit_emit_mem_unaligned(compiler, type, reg, mem, memw);
+
+ ADJUST_LOCAL_OFFSET(mem, memw);
+
+ regs[0] = U8(REG_PAIR_FIRST(reg));
+ regs[1] = U8(REG_PAIR_SECOND(reg));
+
+ next = SSIZE_OF(sw);
+
+ if (!(type & SLJIT_MEM_STORE) && (regs[0] == (mem & REG_MASK) || regs[0] == OFFS_REG(mem))) {
+ if (regs[1] == (mem & REG_MASK) || regs[1] == OFFS_REG(mem)) {
+ /* None of them are virtual register so TMP_REG1 will not be used. */
+ EMIT_MOV(compiler, TMP_REG1, 0, OFFS_REG(mem), 0);
+
+ if (regs[1] == OFFS_REG(mem))
+ next = -SSIZE_OF(sw);
+
+ mem = (mem & ~OFFS_REG_MASK) | TO_OFFS_REG(TMP_REG1);
+ } else {
+ next = -SSIZE_OF(sw);
+
+ if (!(mem & OFFS_REG_MASK))
+ memw += SSIZE_OF(sw);
+ }
+ }
+
+ for (i = 0; i < 2; i++) {
+ reg_idx = next > 0 ? i : (i ^ 0x1);
+ reg = regs[reg_idx];
+
+ offset = -1;
+
+ if (reg >= SLJIT_R3 && reg <= SLJIT_S3) {
+ offset = (2 * SSIZE_OF(sw)) + ((reg) - SLJIT_R3) * SSIZE_OF(sw);
+ reg = TMP_REG1;
+
+ if (type & SLJIT_MEM_STORE)
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), offset);
+ }
+
+ if ((mem & OFFS_REG_MASK) && (reg_idx == 1)) {
+ inst = (sljit_u8*)ensure_buf(compiler, (sljit_uw)(1 + 4));
+ FAIL_IF(!inst);
+
+ INC_SIZE(4);
+
+ inst[0] = (type & SLJIT_MEM_STORE) ? MOV_rm_r : MOV_r_rm;
+ inst[1] = 0x44 | U8(reg_map[reg] << 3);
+ inst[2] = U8(memw << 6) | U8(reg_map[OFFS_REG(mem)] << 3) | reg_map[mem & REG_MASK];
+ inst[3] = sizeof(sljit_sw);
+ } else if (type & SLJIT_MEM_STORE) {
+ EMIT_MOV(compiler, mem, memw, reg, 0);
+ } else {
+ EMIT_MOV(compiler, reg, 0, mem, memw);
+ }
+
+ if (!(mem & OFFS_REG_MASK))
+ memw += next;
+
+ if (!(type & SLJIT_MEM_STORE) && offset != -1)
+ EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_SP), offset, TMP_REG1, 0);
+ }
+
+ return SLJIT_SUCCESS;
+}
+
static sljit_s32 skip_frames_before_return(struct sljit_compiler *compiler)
{
sljit_sw size;
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-01 00:55:00 +0000