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70153000
2019 Jan 13
2
Problem using BlockFrequencyInfo's getBlockProfileCount
Hey,
I am trying to use the BlockFrequencyInfoWrapperPass to obtain hotness
information in my LLVM pass. Attached is a minimal example of code which
creates a SIGSEGV. The pass calls
AU.addRequired<BlockFrequencyInfoWrapperPass>(); in
getAnalysisUsage(..). The problem exists with changed and unchanged IR.
The binary is instrumented like this: clang input.bc -fprofile-generate
-o