Revision: 22022
Author: [email protected]
Date: Wed Jun 25 17:21:44 2014 UTC
Log: Revert "Allow inlining of functions containing %_ArgumentsLength."
This cuased layout test failures.
[email protected]
Review URL: https://codereview.chromium.org/349923009
http://code.google.com/p/v8/source/detail?r=22022
Modified:
/branches/bleeding_edge/src/ast.cc
/branches/bleeding_edge/src/hydrogen.cc
=======================================
--- /branches/bleeding_edge/src/ast.cc Wed Jun 25 16:02:49 2014 UTC
+++ /branches/bleeding_edge/src/ast.cc Wed Jun 25 17:21:44 2014 UTC
@@ -1117,9 +1117,11 @@
// optimize them.
add_flag(kDontInline);
} else if (node->function()->intrinsic_type == Runtime::INLINE &&
- node->raw_name()->IsOneByteEqualTo("_Arguments")) {
- // Don't inline the %_Arguments because it's implementation will not
work.
- // There is no stack frame to get them from.
+ (node->raw_name()->IsOneByteEqualTo("_ArgumentsLength") ||
+ node->raw_name()->IsOneByteEqualTo("_Arguments"))) {
+ // Don't inline the %_ArgumentsLength or %_Arguments because their
+ // implementation will not work. There is no stack frame to get them
+ // from.
add_flag(kDontInline);
}
}
=======================================
--- /branches/bleeding_edge/src/hydrogen.cc Wed Jun 25 16:02:49 2014 UTC
+++ /branches/bleeding_edge/src/hydrogen.cc Wed Jun 25 17:21:44 2014 UTC
@@ -11310,17 +11310,13 @@
// Support for arguments.length and arguments[?].
void HOptimizedGraphBuilder::GenerateArgumentsLength(CallRuntime* call) {
+ // Our implementation of arguments (based on this stack frame or an
+ // adapter below it) does not work for inlined functions. This runtime
+ // function is blacklisted by AstNode::IsInlineable.
+ ASSERT(function_state()->outer() == NULL);
ASSERT(call->arguments()->length() == 0);
- HInstruction* result = NULL;
- if (function_state()->outer() == NULL) {
- HInstruction* elements = Add<HArgumentsElements>(false);
- result = New<HArgumentsLength>(elements);
- } else {
- // Number of arguments without receiver.
- int argument_count = environment()->
- arguments_environment()->parameter_count() - 1;
- result = New<HConstant>(argument_count);
- }
+ HInstruction* elements = Add<HArgumentsElements>(false);
+ HArgumentsLength* result = New<HArgumentsLength>(elements);
return ast_context()->ReturnInstruction(result, call->id());
}
--
--
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