llvm-project/clang/test/CodeGen/builtin-count-zeros.c

// RUN: %clang_cc1 -emit-llvm %s -o - | grep 'cttz' | count 2
// RUN: %clang_cc1 -emit-llvm %s -o - | grep 'ctlz' | count 2

int a(int a) {return __builtin_ctz(a) + __builtin_clz(a);}
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 - \| grep 'cttz' \| count 2`
			`// RUN: %clang_cc1 -emit-llvm %s -o - \| grep 'ctlz' \| count 2`
Implementation of __builtin_ctlz. llvm-svn: 51595 2008-05-27 23:32:46 +08:00
			`int a(int a) {return __builtin_ctz(a) + __builtin_clz(a);}`