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Diffstat (limited to 'src/3rdparty/pcre2/src/sljit/sljitNativeX86_32.c')
-rw-r--r--src/3rdparty/pcre2/src/sljit/sljitNativeX86_32.c154
1 files changed, 103 insertions, 51 deletions
diff --git a/src/3rdparty/pcre2/src/sljit/sljitNativeX86_32.c b/src/3rdparty/pcre2/src/sljit/sljitNativeX86_32.c
index 78f3dcb06f..f5cf8834b0 100644
--- a/src/3rdparty/pcre2/src/sljit/sljitNativeX86_32.c
+++ b/src/3rdparty/pcre2/src/sljit/sljitNativeX86_32.c
@@ -1,7 +1,7 @@
/*
* Stack-less Just-In-Time compiler
*
- * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ * Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
@@ -38,7 +38,7 @@ 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_s32 type)
+static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_ptr, sljit_s32 type, sljit_sw executable_offset)
{
if (type == SLJIT_JUMP) {
*code_ptr++ = JMP_i32;
@@ -57,7 +57,7 @@ static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_
if (jump->flags & JUMP_LABEL)
jump->flags |= PATCH_MW;
else
- sljit_unaligned_store_sw(code_ptr, jump->u.target - (jump->addr + 4));
+ sljit_unaligned_store_sw(code_ptr, jump->u.target - (jump->addr + 4) - (sljit_uw)executable_offset);
code_ptr += 4;
return code_ptr;
@@ -75,9 +75,30 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
set_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
compiler->args = args;
- compiler->flags_saved = 0;
- size = 1 + (scratches > 7 ? (scratches - 7) : 0) + (saveds <= 3 ? saveds : 3);
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ /* [esp+0] for saving temporaries and third argument for calls. */
+ compiler->saveds_offset = 1 * sizeof(sljit_sw);
+#else
+ /* [esp+0] for saving temporaries and space for maximum three arguments. */
+ if (scratches <= 1)
+ compiler->saveds_offset = 1 * sizeof(sljit_sw);
+ else
+ compiler->saveds_offset = ((scratches == 2) ? 2 : 3) * sizeof(sljit_sw);
+#endif
+
+ 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
@@ -94,11 +115,11 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
*inst++ = MOD_REG | (reg_map[TMP_REG1] << 3) | 0x4 /* esp */;
}
#endif
- if (saveds > 2 || scratches > 7)
+ if (saveds > 2 || scratches > 9)
PUSH_REG(reg_map[SLJIT_S2]);
- if (saveds > 1 || scratches > 8)
+ if (saveds > 1 || scratches > 10)
PUSH_REG(reg_map[SLJIT_S1]);
- if (saveds > 0 || scratches > 9)
+ if (saveds > 0 || scratches > 11)
PUSH_REG(reg_map[SLJIT_S0]);
#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
@@ -134,51 +155,64 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi
}
#endif
- SLJIT_COMPILE_ASSERT(SLJIT_LOCALS_OFFSET >= (2 + 4) * sizeof(sljit_uw), require_at_least_two_words);
+ 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 > 7 ? (scratches - 7) : 0) + (saveds <= 3 ? saveds : 3)) * sizeof(sljit_uw);
+ 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_DOUBLE_ALIGNMENT) {
- local_size = SLJIT_LOCALS_OFFSET + ((local_size + 7) & ~7);
-
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 17);
- FAIL_IF(!inst);
-
- INC_SIZE(17);
- inst[0] = MOV_r_rm;
- inst[1] = MOD_REG | (reg_map[TMP_REG1] << 3) | reg_map[SLJIT_SP];
- inst[2] = GROUP_F7;
- inst[3] = MOD_REG | (0 << 3) | reg_map[SLJIT_SP];
- sljit_unaligned_store_sw(inst + 4, 0x4);
- inst[8] = JNE_i8;
- inst[9] = 6;
- inst[10] = GROUP_BINARY_81;
- inst[11] = MOD_REG | (5 << 3) | reg_map[SLJIT_SP];
- sljit_unaligned_store_sw(inst + 12, 0x4);
- inst[16] = PUSH_r + reg_map[TMP_REG1];
- }
+ 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 + 3) & ~3);
+ 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 > 1024) {
#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
FAIL_IF(emit_do_imm(compiler, MOV_r_i32 + reg_map[SLJIT_R0], local_size));
#else
- local_size -= SLJIT_LOCALS_OFFSET;
+ /* Space for a single argument. This amount is excluded when the stack is allocated below. */
+ local_size -= sizeof(sljit_sw);
FAIL_IF(emit_do_imm(compiler, MOV_r_i32 + reg_map[SLJIT_R0], local_size));
FAIL_IF(emit_non_cum_binary(compiler, SUB_r_rm, SUB_rm_r, SUB, SUB_EAX_i32,
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, SLJIT_LOCALS_OFFSET));
+ SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, sizeof(sljit_sw)));
#endif
FAIL_IF(sljit_emit_ijump(compiler, SLJIT_CALL1, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_grow_stack)));
}
#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, SUB_r_rm, SUB_rm_r, SUB, SUB_EAX_i32,
+ 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, ADD_r_rm, ADD_rm_r, ADD, ADD_EAX_i32,
+ 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, SUB_r_rm, SUB_rm_r, SUB, SUB_EAX_i32,
SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, local_size);
}
@@ -193,14 +227,36 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *comp
compiler->args = args;
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+ /* [esp+0] for saving temporaries and third argument for calls. */
+ compiler->saveds_offset = 1 * sizeof(sljit_sw);
+#else
+ /* [esp+0] for saving temporaries and space for maximum three arguments. */
+ if (scratches <= 1)
+ compiler->saveds_offset = 1 * sizeof(sljit_sw);
+ else
+ compiler->saveds_offset = ((scratches == 2) ? 2 : 3) * sizeof(sljit_sw);
+#endif
+
+ 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 > 7 ? (scratches - 7) : 0) + (saveds <= 3 ? saveds : 3)) * sizeof(sljit_uw);
+ 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_DOUBLE_ALIGNMENT)
- compiler->local_size = SLJIT_LOCALS_OFFSET + ((local_size + 7) & ~7);
+ 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 + 3) & ~3);
+ compiler->local_size = SLJIT_LOCALS_OFFSET + ((local_size + sizeof(sljit_sw) - 1) & ~(sizeof(sljit_sw) - 1));
#endif
return SLJIT_SUCCESS;
}
@@ -214,23 +270,19 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *comp
CHECK(check_sljit_emit_return(compiler, op, src, srcw));
SLJIT_ASSERT(compiler->args >= 0);
- compiler->flags_saved = 0;
FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
SLJIT_ASSERT(compiler->local_size > 0);
- FAIL_IF(emit_cum_binary(compiler, ADD_r_rm, ADD_rm_r, ADD, ADD_EAX_i32,
- SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, compiler->local_size));
#if !defined(__APPLE__)
- if (compiler->options & SLJIT_DOUBLE_ALIGNMENT) {
- inst = (sljit_u8*)ensure_buf(compiler, 1 + 3);
- FAIL_IF(!inst);
-
- INC_SIZE(3);
- inst[0] = MOV_r_rm;
- inst[1] = (reg_map[SLJIT_SP] << 3) | 0x4 /* SIB */;
- inst[2] = (4 << 3) | reg_map[SLJIT_SP];
- }
+ 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, ADD_r_rm, ADD_rm_r, ADD, ADD_EAX_i32,
+ SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, compiler->local_size));
+#else
+ FAIL_IF(emit_cum_binary(compiler, ADD_r_rm, ADD_rm_r, ADD, ADD_EAX_i32,
+ SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, compiler->local_size));
#endif
size = 2 + (compiler->scratches > 7 ? (compiler->scratches - 7) : 0) +
@@ -247,11 +299,11 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *comp
INC_SIZE(size);
- if (compiler->saveds > 0 || compiler->scratches > 9)
+ if (compiler->saveds > 0 || compiler->scratches > 11)
POP_REG(reg_map[SLJIT_S0]);
- if (compiler->saveds > 1 || compiler->scratches > 8)
+ if (compiler->saveds > 1 || compiler->scratches > 10)
POP_REG(reg_map[SLJIT_S1]);
- if (compiler->saveds > 2 || compiler->scratches > 7)
+ 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)
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-18 08:08:18 +0000