[llvm-bugs] [Bug 31669] New: GlobalISel: Instruction selection failed

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31669

            Bug ID: 31669
           Summary: GlobalISel: Instruction selection failed
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: vleschuk at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 17847
  --> https://llvm.org/bugs/attachment.cgi?id=17847&action=edit
Reproduction script and source

When trying to compile simple source (see attached) with GlobalISel enabled it
generates the following error:

fatal error: error in backend: Instruction selection failed

And doesn't fallback to usage of old ISel.

The problematic code:

struct S {
  void f() {}
};
S s;
int main() {
  s.f();
  return 0;
}

This happens once you introduce call of object's non-static method: if you
change f() to static or make it just a global function, error is not
reproduced.

LLVM was build from master: 62b3258a7c27b81ccc83d0e19fa2baf295ec460e,
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292205

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