llvm-project/clang/test/CodeGen/constant-comparison.c

// RUN: %clang_cc1 -emit-llvm %s -o - 2>&1 | not grep warning
// 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;
Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446 2009-12-16 04:14:24 +08:00			`// RUN: %clang_cc1 -emit-llvm %s -o - 2>&1 \| not grep warning`
Sidestep false positive due to a matching git repository name 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. Differential Revision: https://reviews.llvm.org/D65635 llvm-svn: 367826 2019-08-05 18:09:06 +08:00			`// RUN: %clang_cc1 -fno-ident -emit-llvm %s -o - \| grep @b \| count 1`
More complete/correct implementation of the comparison operators for constant expressions. llvm-svn: 51682 2008-05-29 23:17:49 +08:00
			`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;`