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Hello; I was trying to use utils/profile.pl script to get path profile and print it from a simple hello world program. First I do the following - Compile the hello.c into LLVM bitcode file using - clang hello.c -S -emit-llvm -o hello.bc But when I try to run the following script - ../llvmclang/llvm-3.0.src/utils/profile.pl -edge hello.bc I get the following error - llvm-prof: hello.bc: Invalid bitcode signature Also in the profile.pl, an argument can be "function". But when I try to run with the argument function, the output is - opt: Unknown command line argument '-in...

Is there a known way to preserve a full and accurate stack trace while utilizing most of LLVM's optimization abilities? We are investigating using LLVM as a JIT for a language which requires the ability to generate an accurate stack trace from any arbitrary point(1) during the execution. I know that we can make this work by doing inlining externally, manually recording virtual frames,