[llvm-bugs] [Bug 33808] New: PowerPC64: Code built with -mcpu=power9 hits select issue

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33808

            Bug ID: 33808
           Summary: PowerPC64: Code built with -mcpu=power9 hits select
                    issue
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: PowerPC
          Assignee: unassignedbugs at nondot.org
          Reporter: anton at samba.org
                CC: echristo at gmail.com, hfinkel at anl.gov,
                    kit.barton at gmail.com, llvm-bugs at lists.llvm.org,
                    nemanja.i.ibm at gmail.com

I'm hitting an error with the following test case:

typedef struct {
        short b, c, d, e;
} f;
char g;
f *h;
int i;
void j(void)
{
        short k;
        for (; i; i++) {
                h->b = h->c = h->d = k = 257 * g;
                h->e = k;
                h++;
        }
}

# clang -O2 -mcpu=power9 test.i

fatal error: error in backend: Cannot select: 0x127a99d10: v8i16 = BUILD_VECTOR
Constant:i32<257>, Constant:i32<257>, Constant:i32<257>, Constant:i32<257>,
Constant:i32<257>, Constant:i32<257>, Constant:i32<257>,
      Constant:i32<257>
  0x127a99c40: i32 = Constant<257>
  0x127a99c40: i32 = Constant<257>
  0x127a99c40: i32 = Constant<257>
  0x127a99c40: i32 = Constant<257>
  0x127a99c40: i32 = Constant<257>
  0x127a99c40: i32 = Constant<257>
  0x127a99c40: i32 = Constant<257>
  0x127a99c40: i32 = Constant<257>
In function: j
clang-3.9: error: clang frontend command failed with exit code 70 (use -v to
see invocation)
clang version 5.0.0 (git://github.com/llvm-mirror/clang.git
3c1756a95139610e837bfd6c992d45950f18db75)
(https://github.com/llvm-mirror/llvm.git
40d67727c7971b006a0ccd28a2f8992e22b9ea26)
Target: powerpc64le-unknown-linux-gnu

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