CodeExtractor : Add ability to preserve profile data.
Added ability to estimate the entry count of the extracted function and
the branch probabilities of the exit branches.
Patch by River Riddle!
Differential Revision: https://reviews.llvm.org/D22744
llvm-svn: 277411
diff --git a/llvm/lib/Analysis/BlockFrequencyInfo.cpp b/llvm/lib/Analysis/BlockFrequencyInfo.cpp
index 1dd8f4f..5f7060a 100644
--- a/llvm/lib/Analysis/BlockFrequencyInfo.cpp
+++ b/llvm/lib/Analysis/BlockFrequencyInfo.cpp
@@ -162,6 +162,13 @@
return BFI->getBlockProfileCount(*getFunction(), BB);
}
+Optional<uint64_t>
+BlockFrequencyInfo::getProfileCountFromFreq(uint64_t Freq) const {
+ if (!BFI)
+ return None;
+ return BFI->getProfileCountFromFreq(*getFunction(), Freq);
+}
+
void BlockFrequencyInfo::setBlockFreq(const BasicBlock *BB, uint64_t Freq) {
assert(BFI && "Expected analysis to be available");
BFI->setBlockFreq(BB, Freq);