https://bugs.llvm.org/show_bug.cgi?id=44513
Bug ID: 44513
Summary: llvm-profdata failed to merge profraw with Unsupported
instrumentation profile format version
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
I built instrumented llvm with -fprofile-generate and use llvm to build
libunwind and got profraw data.
When using llvm-profdata to merge the profraw file, cmd:
bin/llvm-profdata merge --output perf.data ~/llvm/libunwind.profraw
It shows error:
warning: ~/llvm/libunwind.profraw: Unsupported instrumentation profile format
version
error: No profiles could be merged.
Attached is the profraw data I generated with intrumented llvm.
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