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Unified Diff: src/ia32/code-stubs-ia32.cc

Issue 1196193014: Do not add extra argument for new.target (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Comment added Created 5 years, 6 months ago
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Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 7435ccd8aa12f7bce975dbd2423ebc4edec4138a..1d53d719a99b0fc1a7eb539ef4d4e16f19e65543 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -733,7 +733,6 @@ void LoadIndexedStringStub::Generate(MacroAssembler* masm) {
void ArgumentsAccessStub::GenerateReadElement(MacroAssembler* masm) {
- CHECK(!has_new_target());
// The key is in edx and the parameter count is in eax.
DCHECK(edx.is(ArgumentsAccessReadDescriptor::index()));
DCHECK(eax.is(ArgumentsAccessReadDescriptor::parameter_count()));
@@ -800,8 +799,6 @@ void ArgumentsAccessStub::GenerateNewSloppySlow(MacroAssembler* masm) {
// esp[8] : receiver displacement
// esp[12] : function
- CHECK(!has_new_target());
-
// Check if the calling frame is an arguments adaptor frame.
Label runtime;
__ mov(edx, Operand(ebp, StandardFrameConstants::kCallerFPOffset));
@@ -830,8 +827,6 @@ void ArgumentsAccessStub::GenerateNewSloppyFast(MacroAssembler* masm) {
// ebx = parameter count (tagged)
__ mov(ebx, Operand(esp, 1 * kPointerSize));
- CHECK(!has_new_target());
-
// Check if the calling frame is an arguments adaptor frame.
// TODO(rossberg): Factor out some of the bits that are shared with the other
// Generate* functions.
@@ -1072,18 +1067,6 @@ void ArgumentsAccessStub::GenerateNewStrict(MacroAssembler* masm) {
__ bind(&adaptor_frame);
__ mov(ecx, Operand(edx, ArgumentsAdaptorFrameConstants::kLengthOffset));
- if (has_new_target()) {
- // If the constructor was [[Call]]ed, the call will not push a new.target
- // onto the stack. In that case the arguments array we construct is bogus,
- // bu we do not care as the constructor throws immediately.
- __ cmp(ecx, Immediate(Smi::FromInt(0)));
- Label skip_decrement;
- __ j(equal, &skip_decrement);
- // Subtract 1 from smi-tagged arguments count.
- __ sub(ecx, Immediate(2));
- __ bind(&skip_decrement);
- }
-
__ lea(edx, Operand(edx, ecx, times_2,
StandardFrameConstants::kCallerSPOffset));
__ mov(Operand(esp, 1 * kPointerSize), ecx);

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