[RS4GC] Add a comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265503 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjoy Das 2016-04-06 01:33:54 +00:00
parent 6dd7334ee8
commit 376f5bad7b

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@ -1366,6 +1366,10 @@ makeStatepointExplicitImpl(const CallSite CS, /* to replace */
Flags |= uint32_t(StatepointFlags::GCTransition);
TransitionArgs = TransitionBundle->Inputs;
}
// Instead of lowering calls to @llvm.experimental.deoptimize as normal calls
// with a return value, we lower then as never returning calls to
// __llvm_deoptimize that are followed by unreachable to get better codegen.
bool IsDeoptimize = false;
StatepointDirectives SD =