[llvm-bugs] [Bug 38007] New: sigsegv in llvm::PMTopLevelManager::addImmutablePass

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=38007

            Bug ID: 38007
           Summary: sigsegv in llvm::PMTopLevelManager::addImmutablePass
           Product: new-bugs
           Version: 6.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: gienah at gentoo.org
                CC: llvm-bugs at lists.llvm.org

The test is run on Gentoo linux amd64, with clang 6.0.1 (or 6.0.0) compiled
to use gold as its default linker:

-DCLANG_DEFAULT_LINKER=/usr/bin/ld.gold'

Compiling a trivial program:

argus% cat main.c
int main(){ return 0; }
argus% 

clang its a debug assertion, or crashes with a SIGSEGV when compiled without
debug:

argus% clang -save-temps -v -flto=thin
-Wl,-plugin=/usr/lib/llvm/6/lib64/LLVMgold.so main.c
clang version 6.0.1 (tags/RELEASE_601/final)
...
See the attached file clang-lto-plugin-sigsegv-bug-report.txt for the
stack trace.

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