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X87: Introduce intrinsic to expose debug state to generated code.

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port r21908.

original commit message:

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/349183002

Patch from Chunyang Dai <chunyang.dai@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
weiliang.lin@intel.com 2014-06-23 09:17:04 +00:00
parent bd5f13ebc3
commit 16d5587c6d
1 changed files with 10 additions and 0 deletions
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10
src/x87/full-codegen-x87.cc
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@ -3989,6 +3989,16 @@ void FullCodeGenerator::EmitFastAsciiArrayJoin(CallRuntime* expr) {
}
void FullCodeGenerator::EmitDebugIsActive(CallRuntime* expr) {
ASSERT(expr->arguments()->length() == 0);
ExternalReference debug_is_active =
ExternalReference::debug_is_active_address(isolate());
__ movzx_b(eax, Operand::StaticVariable(debug_is_active));
__ SmiTag(eax);
context()->Plug(eax);
}
void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
if (expr->function() != NULL &&
expr->function()->intrinsic_type == Runtime::INLINE) {