llvm-project/clang/test/CodeGen/builtin-attributes.c

// RUN: %clang_cc1 -triple arm-unknown-unknown -emit-llvm -o - %s | FileCheck %s

// CHECK: declare i32 @printf(i8*, ...)
void f0() {
  printf("a\n");
}

// CHECK: call void @exit
// CHECK: unreachable
void f1() {
  exit(1);
}
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 -triple arm-unknown-unknown -emit-llvm -o - %s \| FileCheck %s`
Fix subtle bug in generating LLVM function declarations for builtin functions. The decl wasn't being passed down, which meant that function attributes were not being set correctly. This is particularly important for ARM, since it wants to override the calling convention. Instead we would emit the builtin with the wrong calling convention, and instcombine would come along and merrily shred all the calls to it. :) llvm-svn: 81756 2009-09-14 12:33:21 +08:00
Fix tests that I missed from my previous commit. llvm-svn: 106118 2010-06-17 01:49:52 +08:00			`// CHECK: declare i32 @printf(i8*, ...)`
Fix subtle bug in generating LLVM function declarations for builtin functions. The decl wasn't being passed down, which meant that function attributes were not being set correctly. This is particularly important for ARM, since it wants to override the calling convention. Instead we would emit the builtin with the wrong calling convention, and instcombine would come along and merrily shred all the calls to it. :) llvm-svn: 81756 2009-09-14 12:33:21 +08:00			`void f0() {`
			`printf("a\n");`
			`}`

Fix tests that I missed from my previous commit. llvm-svn: 106118 2010-06-17 01:49:52 +08:00			`// CHECK: call void @exit`
Fix subtle bug in generating LLVM function declarations for builtin functions. The decl wasn't being passed down, which meant that function attributes were not being set correctly. This is particularly important for ARM, since it wants to override the calling convention. Instead we would emit the builtin with the wrong calling convention, and instcombine would come along and merrily shred all the calls to it. :) llvm-svn: 81756 2009-09-14 12:33:21 +08:00			`// CHECK: unreachable`
			`void f1() {`
			`exit(1);`
			`}`