commit 4a90d5fbbb6802c59093b866f3478a814bf02b95
author Ben Murdoch <benm@google.com> Tue Mar 22 12:00:34 2016 +0000
committer Dirk Vogt <dirk@fairphone.com> Fri Mar 17 16:05:42 2017 +0100
tree 486867e3a04e7f17454c94a4c97891bb0e237f1f
parent 3821a70061b1b2077ee51c70eda717bddac94f58

Upgrade V8 to version 4.9.385.28

https://chromium.googlesource.com/v8/v8/+/4.9.385.28

FPIIM-449

Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4

src/x87/codegen-x87.cc

diff --git a/src/x87/codegen-x87.cc b/src/x87/codegen-x87.cc
index 1321461..c66166f 100644
--- a/src/x87/codegen-x87.cc
+++ b/src/x87/codegen-x87.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "src/v8.h"
+#include "src/x87/codegen-x87.h"
 
 #if V8_TARGET_ARCH_X87
 
@@ -33,16 +33,34 @@
 
 #define __ masm.
 
-
-UnaryMathFunction CreateExpFunction() {
-  // No SSE2 support
-  return &std::exp;
+UnaryMathFunctionWithIsolate CreateExpFunction(Isolate* isolate) {
+  return nullptr;
 }
 
 
-UnaryMathFunction CreateSqrtFunction() {
-  // No SSE2 support
-  return &std::sqrt;
+UnaryMathFunctionWithIsolate CreateSqrtFunction(Isolate* isolate) {
+  size_t actual_size;
+  // Allocate buffer in executable space.
+  byte* buffer =
+      static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true));
+  if (buffer == nullptr) return nullptr;
+
+  MacroAssembler masm(isolate, buffer, static_cast<int>(actual_size),
+                      CodeObjectRequired::kNo);
+  // Load double input into registers.
+  __ fld_d(MemOperand(esp, 4));
+  __ X87SetFPUCW(0x027F);
+  __ fsqrt();
+  __ X87SetFPUCW(0x037F);
+  __ Ret();
+
+  CodeDesc desc;
+  masm.GetCode(&desc);
+  DCHECK(!RelocInfo::RequiresRelocation(desc));
+
+  Assembler::FlushICache(isolate, buffer, actual_size);
+  base::OS::ProtectCode(buffer, actual_size);
+  return FUNCTION_CAST<UnaryMathFunctionWithIsolate>(buffer);
 }
 
 
@@ -76,13 +94,14 @@
 };
 
 
-MemMoveFunction CreateMemMoveFunction() {
+MemMoveFunction CreateMemMoveFunction(Isolate* isolate) {
   size_t actual_size;
   // Allocate buffer in executable space.
   byte* buffer =
       static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true));
-  if (buffer == NULL) return NULL;
-  MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size));
+  if (buffer == nullptr) return nullptr;
+  MacroAssembler masm(isolate, buffer, static_cast<int>(actual_size),
+                      CodeObjectRequired::kNo);
   LabelConverter conv(buffer);
 
   // Generated code is put into a fixed, unmovable buffer, and not into
@@ -182,7 +201,7 @@
   CodeDesc desc;
   masm.GetCode(&desc);
   DCHECK(!RelocInfo::RequiresRelocation(desc));
-  CpuFeatures::FlushICache(buffer, actual_size);
+  Assembler::FlushICache(isolate, buffer, actual_size);
   base::OS::ProtectCode(buffer, actual_size);
   // TODO(jkummerow): It would be nice to register this code creation event
   // with the PROFILE / GDBJIT system.
@@ -571,9 +590,11 @@
 #undef __
 
 
-CodeAgingHelper::CodeAgingHelper() {
+CodeAgingHelper::CodeAgingHelper(Isolate* isolate) {
+  USE(isolate);
   DCHECK(young_sequence_.length() == kNoCodeAgeSequenceLength);
-  CodePatcher patcher(young_sequence_.start(), young_sequence_.length());
+  CodePatcher patcher(isolate, young_sequence_.start(),
+                      young_sequence_.length());
   patcher.masm()->push(ebp);
   patcher.masm()->mov(ebp, esp);
   patcher.masm()->push(esi);
@@ -617,15 +638,16 @@
   uint32_t young_length = isolate->code_aging_helper()->young_sequence_length();
   if (age == kNoAgeCodeAge) {
     isolate->code_aging_helper()->CopyYoungSequenceTo(sequence);
-    CpuFeatures::FlushICache(sequence, young_length);
+    Assembler::FlushICache(isolate, sequence, young_length);
   } else {
     Code* stub = GetCodeAgeStub(isolate, age, parity);
-    CodePatcher patcher(sequence, young_length);
+    CodePatcher patcher(isolate, sequence, young_length);
     patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32);
   }
 }
 
 
-} }  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87