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Diffstat (limited to 'chromium/v8/src/ia32/lithium-gap-resolver-ia32.cc')
-rw-r--r--chromium/v8/src/ia32/lithium-gap-resolver-ia32.cc121
1 files changed, 27 insertions, 94 deletions
diff --git a/chromium/v8/src/ia32/lithium-gap-resolver-ia32.cc b/chromium/v8/src/ia32/lithium-gap-resolver-ia32.cc
index d621bd261d6..71a4a0e8d93 100644
--- a/chromium/v8/src/ia32/lithium-gap-resolver-ia32.cc
+++ b/chromium/v8/src/ia32/lithium-gap-resolver-ia32.cc
@@ -1,36 +1,13 @@
// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * 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.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
-// OWNER 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.
-
-#include "v8.h"
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/v8.h"
#if V8_TARGET_ARCH_IA32
-#include "ia32/lithium-gap-resolver-ia32.h"
-#include "ia32/lithium-codegen-ia32.h"
+#include "src/ia32/lithium-gap-resolver-ia32.h"
+#include "src/ia32/lithium-codegen-ia32.h"
namespace v8 {
namespace internal {
@@ -309,7 +286,7 @@ void LGapResolver::EmitMove(int index) {
Representation r = cgen_->IsSmi(constant_source)
? Representation::Smi() : Representation::Integer32();
if (cgen_->IsInteger32(constant_source)) {
- __ Set(dst, cgen_->ToImmediate(constant_source, r));
+ __ Move(dst, cgen_->ToImmediate(constant_source, r));
} else {
__ LoadObject(dst, cgen_->ToHandle(constant_source));
}
@@ -318,22 +295,13 @@ void LGapResolver::EmitMove(int index) {
uint64_t int_val = BitCast<uint64_t, double>(v);
int32_t lower = static_cast<int32_t>(int_val);
int32_t upper = static_cast<int32_t>(int_val >> kBitsPerInt);
- if (CpuFeatures::IsSupported(SSE2)) {
- CpuFeatureScope scope(cgen_->masm(), SSE2);
- XMMRegister dst = cgen_->ToDoubleRegister(destination);
- if (int_val == 0) {
- __ xorps(dst, dst);
- } else {
- __ push(Immediate(upper));
- __ push(Immediate(lower));
- __ movsd(dst, Operand(esp, 0));
- __ add(esp, Immediate(kDoubleSize));
- }
+ XMMRegister dst = cgen_->ToDoubleRegister(destination);
+ if (int_val == 0) {
+ __ xorps(dst, dst);
} else {
__ push(Immediate(upper));
__ push(Immediate(lower));
- X87Register dst = cgen_->ToX87Register(destination);
- cgen_->X87Mov(dst, MemOperand(esp, 0));
+ __ movsd(dst, Operand(esp, 0));
__ add(esp, Immediate(kDoubleSize));
}
} else {
@@ -342,7 +310,7 @@ void LGapResolver::EmitMove(int index) {
Representation r = cgen_->IsSmi(constant_source)
? Representation::Smi() : Representation::Integer32();
if (cgen_->IsInteger32(constant_source)) {
- __ Set(dst, cgen_->ToImmediate(constant_source, r));
+ __ Move(dst, cgen_->ToImmediate(constant_source, r));
} else {
Register tmp = EnsureTempRegister();
__ LoadObject(tmp, cgen_->ToHandle(constant_source));
@@ -351,59 +319,27 @@ void LGapResolver::EmitMove(int index) {
}
} else if (source->IsDoubleRegister()) {
- if (CpuFeatures::IsSupported(SSE2)) {
- CpuFeatureScope scope(cgen_->masm(), SSE2);
- XMMRegister src = cgen_->ToDoubleRegister(source);
- if (destination->IsDoubleRegister()) {
- XMMRegister dst = cgen_->ToDoubleRegister(destination);
- __ movaps(dst, src);
- } else {
- ASSERT(destination->IsDoubleStackSlot());
- Operand dst = cgen_->ToOperand(destination);
- __ movsd(dst, src);
- }
+ XMMRegister src = cgen_->ToDoubleRegister(source);
+ if (destination->IsDoubleRegister()) {
+ XMMRegister dst = cgen_->ToDoubleRegister(destination);
+ __ movaps(dst, src);
} else {
- // load from the register onto the stack, store in destination, which must
- // be a double stack slot in the non-SSE2 case.
ASSERT(destination->IsDoubleStackSlot());
Operand dst = cgen_->ToOperand(destination);
- X87Register src = cgen_->ToX87Register(source);
- cgen_->X87Mov(dst, src);
+ __ movsd(dst, src);
}
} else if (source->IsDoubleStackSlot()) {
- if (CpuFeatures::IsSupported(SSE2)) {
- CpuFeatureScope scope(cgen_->masm(), SSE2);
- ASSERT(destination->IsDoubleRegister() ||
- destination->IsDoubleStackSlot());
- Operand src = cgen_->ToOperand(source);
- if (destination->IsDoubleRegister()) {
- XMMRegister dst = cgen_->ToDoubleRegister(destination);
- __ movsd(dst, src);
- } else {
- // We rely on having xmm0 available as a fixed scratch register.
- Operand dst = cgen_->ToOperand(destination);
- __ movsd(xmm0, src);
- __ movsd(dst, xmm0);
- }
+ ASSERT(destination->IsDoubleRegister() ||
+ destination->IsDoubleStackSlot());
+ Operand src = cgen_->ToOperand(source);
+ if (destination->IsDoubleRegister()) {
+ XMMRegister dst = cgen_->ToDoubleRegister(destination);
+ __ movsd(dst, src);
} else {
- // load from the stack slot on top of the floating point stack, and then
- // store in destination. If destination is a double register, then it
- // represents the top of the stack and nothing needs to be done.
- if (destination->IsDoubleStackSlot()) {
- Register tmp = EnsureTempRegister();
- Operand src0 = cgen_->ToOperand(source);
- Operand src1 = cgen_->HighOperand(source);
- Operand dst0 = cgen_->ToOperand(destination);
- Operand dst1 = cgen_->HighOperand(destination);
- __ mov(tmp, src0); // Then use tmp to copy source to destination.
- __ mov(dst0, tmp);
- __ mov(tmp, src1);
- __ mov(dst1, tmp);
- } else {
- Operand src = cgen_->ToOperand(source);
- X87Register dst = cgen_->ToX87Register(destination);
- cgen_->X87Mov(dst, src);
- }
+ // We rely on having xmm0 available as a fixed scratch register.
+ Operand dst = cgen_->ToOperand(destination);
+ __ movsd(xmm0, src);
+ __ movsd(dst, xmm0);
}
} else {
UNREACHABLE();
@@ -468,7 +404,6 @@ void LGapResolver::EmitSwap(int index) {
__ mov(src, tmp0);
}
} else if (source->IsDoubleRegister() && destination->IsDoubleRegister()) {
- CpuFeatureScope scope(cgen_->masm(), SSE2);
// XMM register-register swap. We rely on having xmm0
// available as a fixed scratch register.
XMMRegister src = cgen_->ToDoubleRegister(source);
@@ -477,7 +412,6 @@ void LGapResolver::EmitSwap(int index) {
__ movaps(src, dst);
__ movaps(dst, xmm0);
} else if (source->IsDoubleRegister() || destination->IsDoubleRegister()) {
- CpuFeatureScope scope(cgen_->masm(), SSE2);
// XMM register-memory swap. We rely on having xmm0
// available as a fixed scratch register.
ASSERT(source->IsDoubleStackSlot() || destination->IsDoubleStackSlot());
@@ -490,7 +424,6 @@ void LGapResolver::EmitSwap(int index) {
__ movsd(other, reg);
__ movaps(reg, xmm0);
} else if (source->IsDoubleStackSlot() && destination->IsDoubleStackSlot()) {
- CpuFeatureScope scope(cgen_->masm(), SSE2);
// Double-width memory-to-memory. Spill on demand to use a general
// purpose temporary register and also rely on having xmm0 available as
// a fixed scratch register.
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-08 01:52:59 +0000