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Diffstat (limited to 'src/3rdparty/pcre/sljit/sljitNativeX86_64.c')
-rw-r--r--src/3rdparty/pcre/sljit/sljitNativeX86_64.c842
1 files changed, 842 insertions, 0 deletions
diff --git a/src/3rdparty/pcre/sljit/sljitNativeX86_64.c b/src/3rdparty/pcre/sljit/sljitNativeX86_64.c
new file mode 100644
index 0000000000..40d875b841
--- /dev/null
+++ b/src/3rdparty/pcre/sljit/sljitNativeX86_64.c
@@ -0,0 +1,842 @@
+/*
+ * Stack-less Just-In-Time compiler
+ *
+ * Copyright 2009-2012 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:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* x86 64-bit arch dependent functions. */
+
+static int emit_load_imm64(struct sljit_compiler *compiler, int reg, sljit_w imm)
+{
+ sljit_ub *buf;
+
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 2 + sizeof(sljit_w));
+ FAIL_IF(!buf);
+ INC_SIZE(2 + sizeof(sljit_w));
+ *buf++ = REX_W | ((reg_map[reg] <= 7) ? 0 : REX_B);
+ *buf++ = 0xb8 + (reg_map[reg] & 0x7);
+ *(sljit_w*)buf = imm;
+ return SLJIT_SUCCESS;
+}
+
+static sljit_ub* generate_far_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, int type)
+{
+ if (type < SLJIT_JUMP) {
+ *code_ptr++ = get_jump_code(type ^ 0x1) - 0x10;
+ *code_ptr++ = 10 + 3;
+ }
+
+ SLJIT_COMPILE_ASSERT(reg_map[TMP_REG3] == 9, tmp3_is_9_first);
+ *code_ptr++ = REX_W | REX_B;
+ *code_ptr++ = 0xb8 + 1;
+ jump->addr = (sljit_uw)code_ptr;
+
+ if (jump->flags & JUMP_LABEL)
+ jump->flags |= PATCH_MD;
+ else
+ *(sljit_w*)code_ptr = jump->u.target;
+
+ code_ptr += sizeof(sljit_w);
+ *code_ptr++ = REX_B;
+ *code_ptr++ = 0xff;
+ *code_ptr++ = (type >= SLJIT_FAST_CALL) ? 0xd1 /* call */ : 0xe1 /* jmp */;
+
+ return code_ptr;
+}
+
+static sljit_ub* generate_fixed_jump(sljit_ub *code_ptr, sljit_w addr, int type)
+{
+ sljit_w delta = addr - ((sljit_w)code_ptr + 1 + sizeof(sljit_hw));
+
+ if (delta <= SLJIT_W(0x7fffffff) && delta >= SLJIT_W(-0x80000000)) {
+ *code_ptr++ = (type == 2) ? 0xe8 /* call */ : 0xe9 /* jmp */;
+ *(sljit_w*)code_ptr = delta;
+ }
+ else {
+ SLJIT_COMPILE_ASSERT(reg_map[TMP_REG3] == 9, tmp3_is_9_second);
+ *code_ptr++ = REX_W | REX_B;
+ *code_ptr++ = 0xb8 + 1;
+ *(sljit_w*)code_ptr = addr;
+ code_ptr += sizeof(sljit_w);
+ *code_ptr++ = REX_B;
+ *code_ptr++ = 0xff;
+ *code_ptr++ = (type == 2) ? 0xd1 /* call */ : 0xe1 /* jmp */;
+ }
+
+ return code_ptr;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+ int size, pushed_size;
+ sljit_ub *buf;
+
+ CHECK_ERROR();
+ check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
+
+ compiler->temporaries = temporaries;
+ compiler->saveds = saveds;
+ compiler->flags_saved = 0;
+
+ size = saveds;
+ /* Including the return address saved by the call instruction. */
+ pushed_size = (saveds + 1) * sizeof(sljit_w);
+#ifndef _WIN64
+ if (saveds >= 2)
+ size += saveds - 1;
+#else
+ /* Saving the virtual stack pointer. */
+ compiler->has_locals = local_size > 0;
+ if (local_size > 0) {
+ size += 2;
+ pushed_size += sizeof(sljit_w);
+ }
+ if (saveds >= 4)
+ size += saveds - 3;
+ if (temporaries >= 5) {
+ size += (5 - 4) * 2;
+ pushed_size += sizeof(sljit_w);
+ }
+#endif
+ size += args * 3;
+ if (size > 0) {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
+ FAIL_IF(!buf);
+
+ INC_SIZE(size);
+ if (saveds >= 5) {
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_EREG2] >= 8, saved_ereg2_is_hireg);
+ *buf++ = REX_B;
+ PUSH_REG(reg_lmap[SLJIT_SAVED_EREG2]);
+ }
+ if (saveds >= 4) {
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_EREG1] >= 8, saved_ereg1_is_hireg);
+ *buf++ = REX_B;
+ PUSH_REG(reg_lmap[SLJIT_SAVED_EREG1]);
+ }
+ if (saveds >= 3) {
+#ifndef _WIN64
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG3] >= 8, saved_reg3_is_hireg);
+ *buf++ = REX_B;
+#else
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG3] < 8, saved_reg3_is_loreg);
+#endif
+ PUSH_REG(reg_lmap[SLJIT_SAVED_REG3]);
+ }
+ if (saveds >= 2) {
+#ifndef _WIN64
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG2] >= 8, saved_reg2_is_hireg);
+ *buf++ = REX_B;
+#else
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG2] < 8, saved_reg2_is_loreg);
+#endif
+ PUSH_REG(reg_lmap[SLJIT_SAVED_REG2]);
+ }
+ if (saveds >= 1) {
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG1] < 8, saved_reg1_is_loreg);
+ PUSH_REG(reg_lmap[SLJIT_SAVED_REG1]);
+ }
+#ifdef _WIN64
+ if (temporaries >= 5) {
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_TEMPORARY_EREG2] >= 8, temporary_ereg2_is_hireg);
+ *buf++ = REX_B;
+ PUSH_REG(reg_lmap[SLJIT_TEMPORARY_EREG2]);
+ }
+ if (local_size > 0) {
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_LOCALS_REG] >= 8, locals_reg_is_hireg);
+ *buf++ = REX_B;
+ PUSH_REG(reg_lmap[SLJIT_LOCALS_REG]);
+ }
+#endif
+
+#ifndef _WIN64
+ if (args > 0) {
+ *buf++ = REX_W;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG1] << 3) | 0x7;
+ }
+ if (args > 1) {
+ *buf++ = REX_W | REX_R;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (reg_lmap[SLJIT_SAVED_REG2] << 3) | 0x6;
+ }
+ if (args > 2) {
+ *buf++ = REX_W | REX_R;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (reg_lmap[SLJIT_SAVED_REG3] << 3) | 0x2;
+ }
+#else
+ if (args > 0) {
+ *buf++ = REX_W;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG1] << 3) | 0x1;
+ }
+ if (args > 1) {
+ *buf++ = REX_W;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG2] << 3) | 0x2;
+ }
+ if (args > 2) {
+ *buf++ = REX_W | REX_B;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG3] << 3) | 0x0;
+ }
+#endif
+ }
+
+ local_size = ((local_size + pushed_size + 16 - 1) & ~(16 - 1)) - pushed_size;
+#ifdef _WIN64
+ local_size += 4 * sizeof(sljit_w);
+ compiler->local_size = local_size;
+ if (local_size > 1024) {
+ /* Allocate the stack for the function itself. */
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+ FAIL_IF(!buf);
+ INC_SIZE(4);
+ *buf++ = REX_W;
+ *buf++ = 0x83;
+ *buf++ = 0xc0 | (5 << 3) | 4;
+ /* Pushed size must be divisible by 8. */
+ SLJIT_ASSERT(!(pushed_size & 0x7));
+ if (pushed_size & 0x8) {
+ *buf++ = 5 * sizeof(sljit_w);
+ local_size -= 5 * sizeof(sljit_w);
+ } else {
+ *buf++ = 4 * sizeof(sljit_w);
+ local_size -= 4 * sizeof(sljit_w);
+ }
+ FAIL_IF(emit_load_imm64(compiler, SLJIT_TEMPORARY_REG1, local_size));
+ FAIL_IF(sljit_emit_ijump(compiler, SLJIT_CALL1, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_touch_stack)));
+ }
+#else
+ compiler->local_size = local_size;
+ if (local_size > 0) {
+#endif
+ /* In case of Win64, local_size is always > 4 * sizeof(sljit_w) */
+ if (local_size <= 127) {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+ FAIL_IF(!buf);
+ INC_SIZE(4);
+ *buf++ = REX_W;
+ *buf++ = 0x83;
+ *buf++ = 0xc0 | (5 << 3) | 4;
+ *buf++ = local_size;
+ }
+ else {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 7);
+ FAIL_IF(!buf);
+ INC_SIZE(7);
+ *buf++ = REX_W;
+ *buf++ = 0x81;
+ *buf++ = 0xc0 | (5 << 3) | 4;
+ *(sljit_hw*)buf = local_size;
+ buf += sizeof(sljit_hw);
+ }
+#ifndef _WIN64
+ }
+#endif
+
+#ifdef _WIN64
+ if (compiler->has_locals) {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 5);
+ FAIL_IF(!buf);
+ INC_SIZE(5);
+ *buf++ = REX_W | REX_R;
+ *buf++ = 0x8d;
+ *buf++ = 0x40 | (reg_lmap[SLJIT_LOCALS_REG] << 3) | 0x4;
+ *buf++ = 0x24;
+ *buf = 4 * sizeof(sljit_w);
+ }
+#endif
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+ int pushed_size;
+
+ CHECK_ERROR_VOID();
+ check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
+
+ compiler->temporaries = temporaries;
+ compiler->saveds = saveds;
+ /* Including the return address saved by the call instruction. */
+ pushed_size = (saveds + 1) * sizeof(sljit_w);
+#ifdef _WIN64
+ compiler->has_locals = local_size > 0;
+ if (local_size > 0)
+ pushed_size += sizeof(sljit_w);
+ if (temporaries >= 5)
+ pushed_size += sizeof(sljit_w);
+#endif
+ compiler->local_size = ((local_size + pushed_size + 16 - 1) & ~(16 - 1)) - pushed_size;
+#ifdef _WIN64
+ compiler->local_size += 4 * sizeof(sljit_w);
+#endif
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+ int size;
+ sljit_ub *buf;
+
+ CHECK_ERROR();
+ check_sljit_emit_return(compiler, op, src, srcw);
+
+ compiler->flags_saved = 0;
+ FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+ if (compiler->local_size > 0) {
+ if (compiler->local_size <= 127) {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+ FAIL_IF(!buf);
+ INC_SIZE(4);
+ *buf++ = REX_W;
+ *buf++ = 0x83;
+ *buf++ = 0xc0 | (0 << 3) | 4;
+ *buf = compiler->local_size;
+ }
+ else {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 7);
+ FAIL_IF(!buf);
+ INC_SIZE(7);
+ *buf++ = REX_W;
+ *buf++ = 0x81;
+ *buf++ = 0xc0 | (0 << 3) | 4;
+ *(sljit_hw*)buf = compiler->local_size;
+ }
+ }
+
+ size = 1 + compiler->saveds;
+#ifndef _WIN64
+ if (compiler->saveds >= 2)
+ size += compiler->saveds - 1;
+#else
+ if (compiler->has_locals)
+ size += 2;
+ if (compiler->saveds >= 4)
+ size += compiler->saveds - 3;
+ if (compiler->temporaries >= 5)
+ size += (5 - 4) * 2;
+#endif
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
+ FAIL_IF(!buf);
+
+ INC_SIZE(size);
+
+#ifdef _WIN64
+ if (compiler->has_locals) {
+ *buf++ = REX_B;
+ POP_REG(reg_lmap[SLJIT_LOCALS_REG]);
+ }
+ if (compiler->temporaries >= 5) {
+ *buf++ = REX_B;
+ POP_REG(reg_lmap[SLJIT_TEMPORARY_EREG2]);
+ }
+#endif
+ if (compiler->saveds >= 1)
+ POP_REG(reg_map[SLJIT_SAVED_REG1]);
+ if (compiler->saveds >= 2) {
+#ifndef _WIN64
+ *buf++ = REX_B;
+#endif
+ POP_REG(reg_lmap[SLJIT_SAVED_REG2]);
+ }
+ if (compiler->saveds >= 3) {
+#ifndef _WIN64
+ *buf++ = REX_B;
+#endif
+ POP_REG(reg_lmap[SLJIT_SAVED_REG3]);
+ }
+ if (compiler->saveds >= 4) {
+ *buf++ = REX_B;
+ POP_REG(reg_lmap[SLJIT_SAVED_EREG1]);
+ }
+ if (compiler->saveds >= 5) {
+ *buf++ = REX_B;
+ POP_REG(reg_lmap[SLJIT_SAVED_EREG2]);
+ }
+
+ RET();
+ return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/* Operators */
+/* --------------------------------------------------------------------- */
+
+static int emit_do_imm32(struct sljit_compiler *compiler, sljit_ub rex, sljit_ub opcode, sljit_w imm)
+{
+ sljit_ub *buf;
+
+ if (rex != 0) {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 2 + sizeof(sljit_hw));
+ FAIL_IF(!buf);
+ INC_SIZE(2 + sizeof(sljit_hw));
+ *buf++ = rex;
+ *buf++ = opcode;
+ *(sljit_hw*)buf = imm;
+ }
+ else {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 1 + sizeof(sljit_hw));
+ FAIL_IF(!buf);
+ INC_SIZE(1 + sizeof(sljit_hw));
+ *buf++ = opcode;
+ *(sljit_hw*)buf = imm;
+ }
+ return SLJIT_SUCCESS;
+}
+
+static sljit_ub* emit_x86_instruction(struct sljit_compiler *compiler, int size,
+ /* The register or immediate operand. */
+ int a, sljit_w imma,
+ /* The general operand (not immediate). */
+ int b, sljit_w immb)
+{
+ sljit_ub *buf;
+ sljit_ub *buf_ptr;
+ sljit_ub rex = 0;
+ int flags = size & ~0xf;
+ int inst_size;
+
+ /* The immediate operand must be 32 bit. */
+ SLJIT_ASSERT(!(a & SLJIT_IMM) || compiler->mode32 || IS_HALFWORD(imma));
+ /* Both cannot be switched on. */
+ SLJIT_ASSERT((flags & (EX86_BIN_INS | EX86_SHIFT_INS)) != (EX86_BIN_INS | EX86_SHIFT_INS));
+ /* Size flags not allowed for typed instructions. */
+ SLJIT_ASSERT(!(flags & (EX86_BIN_INS | EX86_SHIFT_INS)) || (flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) == 0);
+ /* Both size flags cannot be switched on. */
+ SLJIT_ASSERT((flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) != (EX86_BYTE_ARG | EX86_HALF_ARG));
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+ /* SSE2 and immediate is not possible. */
+ SLJIT_ASSERT(!(a & SLJIT_IMM) || !(flags & EX86_SSE2));
+#endif
+
+ size &= 0xf;
+ inst_size = size;
+
+ if ((b & SLJIT_MEM) && !(b & 0xf0) && NOT_HALFWORD(immb)) {
+ if (emit_load_imm64(compiler, TMP_REG3, immb))
+ return NULL;
+ immb = 0;
+ if (b & 0xf)
+ b |= TMP_REG3 << 4;
+ else
+ b |= TMP_REG3;
+ }
+
+ if (!compiler->mode32 && !(flags & EX86_NO_REXW))
+ rex |= REX_W;
+ else if (flags & EX86_REX)
+ rex |= REX;
+
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+ if (flags & EX86_PREF_F2)
+ inst_size++;
+#endif
+ if (flags & EX86_PREF_66)
+ inst_size++;
+
+ /* Calculate size of b. */
+ inst_size += 1; /* mod r/m byte. */
+ if (b & SLJIT_MEM) {
+ if ((b & 0x0f) == SLJIT_UNUSED)
+ inst_size += 1 + sizeof(sljit_hw); /* SIB byte required to avoid RIP based addressing. */
+ else {
+ if (reg_map[b & 0x0f] >= 8)
+ rex |= REX_B;
+ if (immb != 0 && !(b & 0xf0)) {
+ /* Immediate operand. */
+ if (immb <= 127 && immb >= -128)
+ inst_size += sizeof(sljit_b);
+ else
+ inst_size += sizeof(sljit_hw);
+ }
+ }
+
+#ifndef _WIN64
+ if ((b & 0xf) == SLJIT_LOCALS_REG && (b & 0xf0) == 0)
+ b |= SLJIT_LOCALS_REG << 4;
+#endif
+
+ if ((b & 0xf0) != SLJIT_UNUSED) {
+ inst_size += 1; /* SIB byte. */
+ if (reg_map[(b >> 4) & 0x0f] >= 8)
+ rex |= REX_X;
+ }
+ }
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+ else if (!(flags & EX86_SSE2) && reg_map[b] >= 8)
+ rex |= REX_B;
+#else
+ else if (reg_map[b] >= 8)
+ rex |= REX_B;
+#endif
+
+ if (a & SLJIT_IMM) {
+ if (flags & EX86_BIN_INS) {
+ if (imma <= 127 && imma >= -128) {
+ inst_size += 1;
+ flags |= EX86_BYTE_ARG;
+ } else
+ inst_size += 4;
+ }
+ else if (flags & EX86_SHIFT_INS) {
+ imma &= compiler->mode32 ? 0x1f : 0x3f;
+ if (imma != 1) {
+ inst_size ++;
+ flags |= EX86_BYTE_ARG;
+ }
+ } else if (flags & EX86_BYTE_ARG)
+ inst_size++;
+ else if (flags & EX86_HALF_ARG)
+ inst_size += sizeof(short);
+ else
+ inst_size += sizeof(sljit_hw);
+ }
+ else {
+ SLJIT_ASSERT(!(flags & EX86_SHIFT_INS) || a == SLJIT_PREF_SHIFT_REG);
+ /* reg_map[SLJIT_PREF_SHIFT_REG] is less than 8. */
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+ if (!(flags & EX86_SSE2) && reg_map[a] >= 8)
+ rex |= REX_R;
+#else
+ if (reg_map[a] >= 8)
+ rex |= REX_R;
+#endif
+ }
+
+ if (rex)
+ inst_size++;
+
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + inst_size);
+ PTR_FAIL_IF(!buf);
+
+ /* Encoding the byte. */
+ INC_SIZE(inst_size);
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+ if (flags & EX86_PREF_F2)
+ *buf++ = 0xf2;
+#endif
+ if (flags & EX86_PREF_66)
+ *buf++ = 0x66;
+ if (rex)
+ *buf++ = rex;
+ buf_ptr = buf + size;
+
+ /* Encode mod/rm byte. */
+ if (!(flags & EX86_SHIFT_INS)) {
+ if ((flags & EX86_BIN_INS) && (a & SLJIT_IMM))
+ *buf = (flags & EX86_BYTE_ARG) ? 0x83 : 0x81;
+
+ if ((a & SLJIT_IMM) || (a == 0))
+ *buf_ptr = 0;
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+ else if (!(flags & EX86_SSE2))
+ *buf_ptr = reg_lmap[a] << 3;
+ else
+ *buf_ptr = a << 3;
+#else
+ else
+ *buf_ptr = reg_lmap[a] << 3;
+#endif
+ }
+ else {
+ if (a & SLJIT_IMM) {
+ if (imma == 1)
+ *buf = 0xd1;
+ else
+ *buf = 0xc1;
+ } else
+ *buf = 0xd3;
+ *buf_ptr = 0;
+ }
+
+ if (!(b & SLJIT_MEM))
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+ *buf_ptr++ |= 0xc0 + ((!(flags & EX86_SSE2)) ? reg_lmap[b] : b);
+#else
+ *buf_ptr++ |= 0xc0 + reg_lmap[b];
+#endif
+ else if ((b & 0x0f) != SLJIT_UNUSED) {
+#ifdef _WIN64
+ SLJIT_ASSERT((b & 0xf0) != (SLJIT_LOCALS_REG << 4));
+#endif
+ if ((b & 0xf0) == SLJIT_UNUSED || (b & 0xf0) == (SLJIT_LOCALS_REG << 4)) {
+ if (immb != 0) {
+ if (immb <= 127 && immb >= -128)
+ *buf_ptr |= 0x40;
+ else
+ *buf_ptr |= 0x80;
+ }
+
+ if ((b & 0xf0) == SLJIT_UNUSED)
+ *buf_ptr++ |= reg_lmap[b & 0x0f];
+ else {
+ *buf_ptr++ |= 0x04;
+ *buf_ptr++ = reg_lmap[b & 0x0f] | (reg_lmap[(b >> 4) & 0x0f] << 3);
+ }
+
+ if (immb != 0) {
+ if (immb <= 127 && immb >= -128)
+ *buf_ptr++ = immb; /* 8 bit displacement. */
+ else {
+ *(sljit_hw*)buf_ptr = immb; /* 32 bit displacement. */
+ buf_ptr += sizeof(sljit_hw);
+ }
+ }
+ }
+ else {
+ *buf_ptr++ |= 0x04;
+ *buf_ptr++ = reg_lmap[b & 0x0f] | (reg_lmap[(b >> 4) & 0x0f] << 3) | (immb << 6);
+ }
+ }
+ else {
+ *buf_ptr++ |= 0x04;
+ *buf_ptr++ = 0x25;
+ *(sljit_hw*)buf_ptr = immb; /* 32 bit displacement. */
+ buf_ptr += sizeof(sljit_hw);
+ }
+
+ if (a & SLJIT_IMM) {
+ if (flags & EX86_BYTE_ARG)
+ *buf_ptr = imma;
+ else if (flags & EX86_HALF_ARG)
+ *(short*)buf_ptr = imma;
+ else if (!(flags & EX86_SHIFT_INS))
+ *(sljit_hw*)buf_ptr = imma;
+ }
+
+ return !(flags & EX86_SHIFT_INS) ? buf : (buf + 1);
+}
+
+/* --------------------------------------------------------------------- */
+/* Call / return instructions */
+/* --------------------------------------------------------------------- */
+
+static SLJIT_INLINE int call_with_args(struct sljit_compiler *compiler, int type)
+{
+ sljit_ub *buf;
+
+#ifndef _WIN64
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_TEMPORARY_REG2] == 6 && reg_map[SLJIT_TEMPORARY_REG1] < 8 && reg_map[SLJIT_TEMPORARY_REG3] < 8, args_registers);
+
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + ((type < SLJIT_CALL3) ? 3 : 6));
+ FAIL_IF(!buf);
+ INC_SIZE((type < SLJIT_CALL3) ? 3 : 6);
+ if (type >= SLJIT_CALL3) {
+ *buf++ = REX_W;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (0x2 << 3) | reg_lmap[SLJIT_TEMPORARY_REG3];
+ }
+ *buf++ = REX_W;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (0x7 << 3) | reg_lmap[SLJIT_TEMPORARY_REG1];
+#else
+ SLJIT_COMPILE_ASSERT(reg_map[SLJIT_TEMPORARY_REG2] == 2 && reg_map[SLJIT_TEMPORARY_REG1] < 8 && reg_map[SLJIT_TEMPORARY_REG3] < 8, args_registers);
+
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + ((type < SLJIT_CALL3) ? 3 : 6));
+ FAIL_IF(!buf);
+ INC_SIZE((type < SLJIT_CALL3) ? 3 : 6);
+ if (type >= SLJIT_CALL3) {
+ *buf++ = REX_W | REX_R;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (0x0 << 3) | reg_lmap[SLJIT_TEMPORARY_REG3];
+ }
+ *buf++ = REX_W;
+ *buf++ = 0x8b;
+ *buf++ = 0xc0 | (0x1 << 3) | reg_lmap[SLJIT_TEMPORARY_REG1];
+#endif
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int saveds, int local_size)
+{
+ sljit_ub *buf;
+
+ CHECK_ERROR();
+ check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, saveds, local_size);
+
+ compiler->temporaries = temporaries;
+ compiler->saveds = saveds;
+ compiler->local_size = (local_size + sizeof(sljit_uw) - 1) & ~(sizeof(sljit_uw) - 1);
+#ifdef _WIN64
+ compiler->local_size += 4 * sizeof(sljit_w);
+#endif
+
+ /* For UNUSED dst. Uncommon, but possible. */
+ if (dst == SLJIT_UNUSED)
+ dst = TMP_REGISTER;
+
+ if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) {
+ if (reg_map[dst] < 8) {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+ FAIL_IF(!buf);
+
+ INC_SIZE(1);
+ POP_REG(reg_lmap[dst]);
+ }
+ else {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 2);
+ FAIL_IF(!buf);
+
+ INC_SIZE(2);
+ *buf++ = REX_B;
+ POP_REG(reg_lmap[dst]);
+ }
+ }
+ else if (dst & SLJIT_MEM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+ /* REX_W is not necessary (src is not immediate). */
+ compiler->mode32 = 1;
+#endif
+ buf = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw);
+ FAIL_IF(!buf);
+ *buf++ = 0x8f;
+ }
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+ sljit_ub *buf;
+
+ CHECK_ERROR();
+ check_sljit_emit_fast_return(compiler, src, srcw);
+
+ CHECK_EXTRA_REGS(src, srcw, (void)0);
+
+ if ((src & SLJIT_IMM) && NOT_HALFWORD(srcw)) {
+ FAIL_IF(emit_load_imm64(compiler, TMP_REGISTER, srcw));
+ src = TMP_REGISTER;
+ }
+
+ if (src >= SLJIT_TEMPORARY_REG1 && src <= TMP_REGISTER) {
+ if (reg_map[src] < 8) {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 1 + 1);
+ FAIL_IF(!buf);
+
+ INC_SIZE(1 + 1);
+ PUSH_REG(reg_lmap[src]);
+ }
+ else {
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 2 + 1);
+ FAIL_IF(!buf);
+
+ INC_SIZE(2 + 1);
+ *buf++ = REX_B;
+ PUSH_REG(reg_lmap[src]);
+ }
+ }
+ else if (src & SLJIT_MEM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+ /* REX_W is not necessary (src is not immediate). */
+ compiler->mode32 = 1;
+#endif
+ buf = emit_x86_instruction(compiler, 1, 0, 0, src, srcw);
+ FAIL_IF(!buf);
+ *buf++ = 0xff;
+ *buf |= 6 << 3;
+
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+ FAIL_IF(!buf);
+ INC_SIZE(1);
+ }
+ else {
+ SLJIT_ASSERT(IS_HALFWORD(srcw));
+ /* SLJIT_IMM. */
+ buf = (sljit_ub*)ensure_buf(compiler, 1 + 5 + 1);
+ FAIL_IF(!buf);
+
+ INC_SIZE(5 + 1);
+ *buf++ = 0x68;
+ *(sljit_hw*)buf = srcw;
+ buf += sizeof(sljit_hw);
+ }
+
+ RET();
+ return SLJIT_SUCCESS;
+}
+
+
+/* --------------------------------------------------------------------- */
+/* Extend input */
+/* --------------------------------------------------------------------- */
+
+static int emit_mov_int(struct sljit_compiler *compiler, int sign,
+ int dst, sljit_w dstw,
+ int src, sljit_w srcw)
+{
+ sljit_ub* code;
+ int dst_r;
+
+ compiler->mode32 = 0;
+
+ if (dst == SLJIT_UNUSED && !(src & SLJIT_MEM))
+ return SLJIT_SUCCESS; /* Empty instruction. */
+
+ if (src & SLJIT_IMM) {
+ if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+ if (sign || ((sljit_uw)srcw <= 0x7fffffff)) {
+ code = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_w)(sljit_i)srcw, dst, dstw);
+ FAIL_IF(!code);
+ *code = 0xc7;
+ return SLJIT_SUCCESS;
+ }
+ return emit_load_imm64(compiler, dst, srcw);
+ }
+ compiler->mode32 = 1;
+ code = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_w)(sljit_i)srcw, dst, dstw);
+ FAIL_IF(!code);
+ *code = 0xc7;
+ compiler->mode32 = 0;
+ return SLJIT_SUCCESS;
+ }
+
+ dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_SAVED_REG3) ? dst : TMP_REGISTER;
+
+ if ((dst & SLJIT_MEM) && (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_SAVED_REG3))
+ dst_r = src;
+ else {
+ if (sign) {
+ code = emit_x86_instruction(compiler, 1, dst_r, 0, src, srcw);
+ FAIL_IF(!code);
+ *code++ = 0x63;
+ } else {
+ compiler->mode32 = 1;
+ FAIL_IF(emit_mov(compiler, dst_r, 0, src, srcw));
+ compiler->mode32 = 0;
+ }
+ }
+
+ if (dst & SLJIT_MEM) {
+ compiler->mode32 = 1;
+ code = emit_x86_instruction(compiler, 1, dst_r, 0, dst, dstw);
+ FAIL_IF(!code);
+ *code = 0x89;
+ compiler->mode32 = 0;
+ }
+
+ return SLJIT_SUCCESS;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 17:02:43 +0000