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Diffstat (limited to 'thirdparty/pcre2/src/sljit/sljitNativeX86_64.c')
-rw-r--r--thirdparty/pcre2/src/sljit/sljitNativeX86_64.c120
1 files changed, 55 insertions, 65 deletions
diff --git a/thirdparty/pcre2/src/sljit/sljitNativeX86_64.c b/thirdparty/pcre2/src/sljit/sljitNativeX86_64.c
index 635ebd087c..8506565614 100644
--- a/thirdparty/pcre2/src/sljit/sljitNativeX86_64.c
+++ b/thirdparty/pcre2/src/sljit/sljitNativeX86_64.c
@@ -83,6 +83,8 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
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);
+ compiler->mode32 = 0;
+
#ifdef _WIN64
/* Two/four register slots for parameters plus space for xmm6 register if needed. */
if (fscratches >= 6 || fsaveds >= 1)
@@ -126,35 +128,39 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
#ifndef _WIN64
if (args > 0) {
- *inst++ = REX_W;
- *inst++ = MOV_r_rm;
- *inst++ = MOD_REG | (reg_map[SLJIT_S0] << 3) | 0x7 /* rdi */;
+ inst[0] = REX_W;
+ inst[1] = MOV_r_rm;
+ inst[2] = MOD_REG | (reg_map[SLJIT_S0] << 3) | 0x7 /* rdi */;
+ inst += 3;
}
if (args > 1) {
- *inst++ = REX_W | REX_R;
- *inst++ = MOV_r_rm;
- *inst++ = MOD_REG | (reg_lmap[SLJIT_S1] << 3) | 0x6 /* rsi */;
+ inst[0] = REX_W | REX_R;
+ inst[1] = MOV_r_rm;
+ inst[2] = MOD_REG | (reg_lmap[SLJIT_S1] << 3) | 0x6 /* rsi */;
+ inst += 3;
}
if (args > 2) {
- *inst++ = REX_W | REX_R;
- *inst++ = MOV_r_rm;
- *inst++ = MOD_REG | (reg_lmap[SLJIT_S2] << 3) | 0x2 /* rdx */;
+ inst[0] = REX_W | REX_R;
+ inst[1] = MOV_r_rm;
+ inst[2] = MOD_REG | (reg_lmap[SLJIT_S2] << 3) | 0x2 /* rdx */;
}
#else
if (args > 0) {
- *inst++ = REX_W;
- *inst++ = MOV_r_rm;
- *inst++ = MOD_REG | (reg_map[SLJIT_S0] << 3) | 0x1 /* rcx */;
+ inst[0] = REX_W;
+ inst[1] = MOV_r_rm;
+ inst[2] = MOD_REG | (reg_map[SLJIT_S0] << 3) | 0x1 /* rcx */;
+ inst += 3;
}
if (args > 1) {
- *inst++ = REX_W;
- *inst++ = MOV_r_rm;
- *inst++ = MOD_REG | (reg_map[SLJIT_S1] << 3) | 0x2 /* rdx */;
+ inst[0] = REX_W;
+ inst[1] = MOV_r_rm;
+ inst[2] = MOD_REG | (reg_map[SLJIT_S1] << 3) | 0x2 /* rdx */;
+ inst += 3;
}
if (args > 2) {
- *inst++ = REX_W | REX_B;
- *inst++ = MOV_r_rm;
- *inst++ = MOD_REG | (reg_map[SLJIT_S2] << 3) | 0x0 /* r8 */;
+ inst[0] = REX_W | REX_B;
+ inst[1] = MOV_r_rm;
+ inst[2] = MOD_REG | (reg_map[SLJIT_S2] << 3) | 0x0 /* r8 */;
}
#endif
}
@@ -163,58 +169,42 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
compiler->local_size = local_size;
#ifdef _WIN64
- if (local_size > 1024) {
- /* Allocate stack for the callback, which grows the stack. */
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 4 + (3 + sizeof(sljit_s32)));
- FAIL_IF(!inst);
- INC_SIZE(4 + (3 + sizeof(sljit_s32)));
- *inst++ = REX_W;
- *inst++ = GROUP_BINARY_83;
- *inst++ = MOD_REG | SUB | reg_map[SLJIT_SP];
- /* Allocated size for registers must be divisible by 8. */
- SLJIT_ASSERT(!(saved_register_size & 0x7));
- /* Aligned to 16 byte. */
- if (saved_register_size & 0x8) {
- *inst++ = 5 * sizeof(sljit_sw);
- local_size -= 5 * sizeof(sljit_sw);
- } else {
- *inst++ = 4 * sizeof(sljit_sw);
- local_size -= 4 * sizeof(sljit_sw);
- }
- /* Second instruction */
- SLJIT_ASSERT(reg_map[SLJIT_R0] < 8);
- *inst++ = REX_W;
- *inst++ = MOV_rm_i32;
- *inst++ = MOD_REG | reg_lmap[SLJIT_R0];
- sljit_unaligned_store_s32(inst, local_size);
-#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
- || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
- compiler->skip_checks = 1;
-#endif
- FAIL_IF(sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARG1(SW), SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_grow_stack)));
- }
-#endif
-
if (local_size > 0) {
- if (local_size <= 127) {
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 4);
- FAIL_IF(!inst);
- INC_SIZE(4);
- *inst++ = REX_W;
- *inst++ = GROUP_BINARY_83;
- *inst++ = MOD_REG | SUB | reg_map[SLJIT_SP];
- *inst++ = local_size;
+ 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 {
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 7);
+ EMIT_MOV(compiler, SLJIT_R0, 0, SLJIT_SP, 0);
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_IMM, (local_size - 1) >> 12);
+
+ SLJIT_ASSERT (reg_map[SLJIT_R0] == 0);
+
+ EMIT_MOV(compiler, TMP_REG2, 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),
+ TMP_REG1, 0, TMP_REG1, 0, SLJIT_IMM, 1));
+
+ inst = (sljit_u8*)ensure_buf(compiler, 1 + 2);
FAIL_IF(!inst);
- INC_SIZE(7);
- *inst++ = REX_W;
- *inst++ = GROUP_BINARY_81;
- *inst++ = MOD_REG | SUB | reg_map[SLJIT_SP];
- sljit_unaligned_store_s32(inst, local_size);
- inst += sizeof(sljit_s32);
+
+ INC_SIZE(2);
+ inst[0] = JNE_i8;
+ inst[1] = (sljit_s8) -19;
}
+
+ EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), -local_size);
+ }
+#endif
+
+ if (local_size > 0) {
+ FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB),
+ SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, local_size));
}
#ifdef _WIN64
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 11:10:16 +0000