[Openmp-dev] Using opt tool

Abid Malik via Openmp-dev openmp-dev at lists.llvm.org
Wed Nov 25 06:45:17 PST 2020


I am compiling an OpenMP program using clang

clang -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk
-O3 -fopenmp -emit-llvm -S -c  test1.c -o test1.ll

However when I try to compiler test1.ll using opt
$ opt -S -O3 test1.ll

Stack dump:
0. Program arguments: opt -S -O3 test1.ll
1. Running pass 'CallGraph Pass Manager' on module 'test1.ll'.
0  opt                      0x00000001010ce9b5
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 37
1  opt                      0x00000001010cd878
llvm::sys::RunSignalHandlers() + 248
2  opt                      0x00000001010cefcc SignalHandler(int) + 268
3  libsystem_platform.dylib 0x00007fff71f715fd _sigtramp + 29
4  libsystem_platform.dylib 000000000000000000 _sigtramp +
5  opt                      0x0000000100b87a32 (anonymous
namespace)::OpenMPOpt::run() + 4162
6  opt                      0x0000000100b9134b (anonymous
namespace)::OpenMPOptLegacyPass::runOnSCC(llvm::CallGraphSCC&) + 651
7  opt                      0x00000001003e63c4 (anonymous
namespace)::CGPassManager::runOnModule(llvm::Module&) + 1172
8  opt                      0x0000000100a35db9
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 825
9  opt                      0x00000001000aed32 main + 13138
10 libdyld.dylib            0x00007fff71d78cc9 start + 1
11 libdyld.dylib            0x0000000000000004 start + 18446603338606211900
Segmentation fault: 11


Abid M. Malik
"I have learned silence from the talkative, toleration from the intolerant,
and kindness from the unkind"---Gibran
"Success is not for the chosen few, but for the few who choose" --- John
"Being a good person does not depend on your religion or status in life,
your race or skin color, political views or culture. IT DEPENDS ON HOW GOOD
"The Universe is talking to us, and the language of the Universe is
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