[SampleFDO] Extend profile-sample-accurate option to cover isFunctionColdInCallGraph
For SampleFDO, when a callsite doesn't appear in the profile, it will not be marked as cold callsite unless the option -profile-sample-accurate is specified.
But profile-sample-accurate doesn't cover function isFunctionColdInCallGraph which is used to decide whether a function should be put into text.unlikely section, so even if the user knows the profile is accurate and specifies profile-sample-accurate, those functions not appearing in the sample profile are still not be put into text.unlikely section right now.
The patch fixes that.
Differential Revision: https://reviews.llvm.org/D55567
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348940 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed