llvm-project/clang/test/CodeGen/PR3589-freestanding-libcalls.c

// RUN: %clang_cc1 -emit-llvm %s -o - | grep 'declare i32 @printf' | count 1
// RUN: %clang_cc1 -O2 -emit-llvm %s -o - | grep 'declare i32 @puts' | count 1
// RUN: %clang_cc1 -ffreestanding -O2 -emit-llvm %s -o - | grep 'declare i32 @puts' | count 0

int printf(const char *, ...);

void f0() {
  printf("hello\n");
}
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 'declare i32 @printf' \| count 1`
			`// RUN: %clang_cc1 -O2 -emit-llvm %s -o - \| grep 'declare i32 @puts' \| count 1`
			`// RUN: %clang_cc1 -ffreestanding -O2 -emit-llvm %s -o - \| grep 'declare i32 @puts' \| count 0`
PR3589: Don't simplify libcalls with -ffreestanding. llvm-svn: 64599 2009-02-16 04:00:15 +08:00
Don't #include <stdio.h> when tests don't need it, or use clang instead of clang-cc when they do. llvm-svn: 89070 2009-11-17 16:57:36 +08:00			`int printf(const char *, ...);`
PR3589: Don't simplify libcalls with -ffreestanding. llvm-svn: 64599 2009-02-16 04:00:15 +08:00
			`void f0() {`
			`printf("hello\n");`
			`}`