Sidestep false positive due to a matching git repository name

[rogfer01]

Summary

I have failures in this test because the grep @b gets confused by the clang version including a repository name like this

!1 = !{!"clang version 10.0.0 (git@build-machine:llvm/llvm-monorepo.git fe958c0e8c89ec663c8e551936778e2cbb460154)"}

I considered something like grep -w but my understanding of the manpages was that that isn't super portable. So I think it is easier to make clang not to output that metadata using -fno-ident.

[efriedma]

LGTM

It would be cleaner to convert this test to FileCheck, but it's probably not worth spending the time at this point.

[rogfer01]

Thanks @efriedma. I will commit this shortly.

cfe/trunk/test/CodeGen/constant-comparison.c

 // RUN: %clang_cc1 -emit-llvm %s -o - 2>&1 | not grep warning
-// RUN: %clang_cc1 -emit-llvm %s -o - | grep @b | count 1
+// RUN: %clang_cc1 -fno-ident -emit-llvm %s -o - | grep @b | count 1
 
 int a, b;
 int *c1 = 1 < 2 ? &a : &b;
 int *c2 = 3 != 3LL ? &b : &a;
 int *c3 = !(3 <= 4.0) ? &b : &a;
 int *c4 = &a - (6 * 5 > 30);
 int *c5 = &a + (6 * 5 >= 30);
 int c6 = 44 < 33;