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Unified Diff: src/x64/codegen-x64.cc

Issue 6447007: Fix a bug that occurs when functions are defined with more than 16,382 parame... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 10 months ago
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Index: src/x64/codegen-x64.cc
===================================================================
--- src/x64/codegen-x64.cc (revision 6692)
+++ src/x64/codegen-x64.cc (working copy)
@@ -2993,21 +2993,22 @@
// Leave the frame and return popping the arguments and the
// receiver.
frame_->Exit();
- masm_->ret((scope()->num_parameters() + 1) * kPointerSize);
+ int arguments_bytes = (scope()->num_parameters() + 1) * kPointerSize;
+ __ Ret(arguments_bytes, rcx);
DeleteFrame();
#ifdef ENABLE_DEBUGGER_SUPPORT
// Add padding that will be overwritten by a debugger breakpoint.
- // frame_->Exit() generates "movq rsp, rbp; pop rbp; ret k"
+ // The shortest return sequence generated is "movq rsp, rbp; pop rbp; ret k"
// with length 7 (3 + 1 + 3).
const int kPadding = Assembler::kJSReturnSequenceLength - 7;
for (int i = 0; i < kPadding; ++i) {
masm_->int3();
}
- // Check that the size of the code used for returning matches what is
- // expected by the debugger.
- ASSERT_EQ(Assembler::kJSReturnSequenceLength,
- masm_->SizeOfCodeGeneratedSince(&check_exit_codesize));
+ // Check that the size of the code used for returning is large enough
+ // for the debugger's requirements.
+ ASSERT(Assembler::kJSReturnSequenceLength <=
+ masm_->SizeOfCodeGeneratedSince(&check_exit_codesize));
#endif
}
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