6aa9e9b41a
Amongst other, this will help LTO to correctly handle/honor files compiled with O0, helping debugging failures. It also seems in line with how we handle other options, like how -fnoinline adds the appropriate attribute as well. Differential Revision: https://reviews.llvm.org/D28404 llvm-svn: 304127
28 lines
845 B
C
28 lines
845 B
C
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.7.0 %s -emit-llvm -o - | FileCheck %s
|
|
|
|
void t1() __attribute__((naked));
|
|
|
|
// Basic functionality check
|
|
// (Note that naked needs to imply noinline to work properly.)
|
|
// CHECK: define void @t1() [[NAKED_OPTNONE:#[0-9]+]] {
|
|
void t1()
|
|
{
|
|
}
|
|
|
|
// Make sure this doesn't explode in the verifier.
|
|
// (It doesn't really make sense, but it isn't invalid.)
|
|
// CHECK: define void @t2() [[NAKED:#[0-9]+]] {
|
|
__attribute((naked, always_inline)) void t2() {
|
|
}
|
|
|
|
// Make sure not to generate prolog or epilog for naked functions.
|
|
__attribute((naked)) void t3(int x) {
|
|
// CHECK: define void @t3(i32)
|
|
// CHECK-NOT: alloca
|
|
// CHECK-NOT: store
|
|
// CHECK: unreachable
|
|
}
|
|
|
|
// CHECK: attributes [[NAKED_OPTNONE]] = { naked noinline nounwind optnone{{.*}} }
|
|
// CHECK: attributes [[NAKED]] = { naked noinline nounwind{{.*}} }
|