Allow deferred handle dereference in EmitLoadRegister to retrieve number.

R=mstarzinger@chromium.org
BUG=chromium:507977
LOG=N

Review URL: https://codereview.chromium.org/1230653004

Cr-Commit-Position: refs/heads/master@{#29549}

diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 747730b..c56206a 100644 (file)
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -427,6 +427,7 @@ Register LCodeGen::EmitLoadRegister(LOperand* op, Register scratch) {
     Handle<Object> literal = constant->handle(isolate());
     Representation r = chunk_->LookupLiteralRepresentation(const_op);
     if (r.IsInteger32()) {
+      AllowDeferredHandleDereference get_number;
       DCHECK(literal->IsNumber());
       __ mov(scratch, Operand(static_cast<int32_t>(literal->Number())));
     } else if (r.IsDouble()) {

diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index 5c26001..b1166c7 100644 (file)
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -424,6 +424,7 @@ Register LCodeGen::EmitLoadRegister(LOperand* op, Register scratch) {
     Handle<Object> literal = constant->handle(isolate());
     Representation r = chunk_->LookupLiteralRepresentation(const_op);
     if (r.IsInteger32()) {
+      AllowDeferredHandleDereference get_number;
       DCHECK(literal->IsNumber());
       __ li(scratch, Operand(static_cast<int32_t>(literal->Number())));
     } else if (r.IsSmi()) {

diff --git a/src/mips64/lithium-codegen-mips64.cc b/src/mips64/lithium-codegen-mips64.cc
index 1273d85..c860606 100644 (file)
--- a/src/mips64/lithium-codegen-mips64.cc
+++ b/src/mips64/lithium-codegen-mips64.cc
@@ -407,6 +407,7 @@ Register LCodeGen::EmitLoadRegister(LOperand* op, Register scratch) {
     Handle<Object> literal = constant->handle(isolate());
     Representation r = chunk_->LookupLiteralRepresentation(const_op);
     if (r.IsInteger32()) {
+      AllowDeferredHandleDereference get_number;
       DCHECK(literal->IsNumber());
       __ li(scratch, Operand(static_cast<int32_t>(literal->Number())));
     } else if (r.IsSmi()) {

diff --git a/src/ppc/lithium-codegen-ppc.cc b/src/ppc/lithium-codegen-ppc.cc
index 8f4cd46..85438f4 100644 (file)
--- a/src/ppc/lithium-codegen-ppc.cc
+++ b/src/ppc/lithium-codegen-ppc.cc
@@ -417,6 +417,7 @@ Register LCodeGen::EmitLoadRegister(LOperand* op, Register scratch) {
     Handle<Object> literal = constant->handle(isolate());
     Representation r = chunk_->LookupLiteralRepresentation(const_op);
     if (r.IsInteger32()) {
+      AllowDeferredHandleDereference get_number;
       DCHECK(literal->IsNumber());
       __ LoadIntLiteral(scratch, static_cast<int32_t>(literal->Number()));
     } else if (r.IsDouble()) {