| // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s |
| |
| // Check that IR gen doesn't try to do an lvalue-to-rvalue conversion |
| // on a volatile reference result. rdar://problem/8338198 |
| namespace test0 { |
| struct A { |
| A(const A& t); |
| A& operator=(const A& t); |
| volatile A& operator=(const volatile A& t) volatile; |
| }; |
| |
| volatile A *array; |
| |
| // CHECK-LABEL: define void @_ZN5test04testENS_1AE( |
| void test(A t) { |
| // CHECK: [[ARR:%.*]] = load [[A:%.*]]*, [[A:%.*]]** @_ZN5test05arrayE, align 8 |
| // CHECK-NEXT: [[IDX:%.*]] = getelementptr inbounds [[A]], [[A]]* [[ARR]], i64 0 |
| // CHECK-NEXT: [[TMP:%.*]] = call dereferenceable({{[0-9]+}}) [[A]]* @_ZNV5test01AaSERVKS0_([[A]]* [[IDX]], [[A]]* dereferenceable({{[0-9]+}}) [[T:%.*]]) |
| // CHECK-NEXT: ret void |
| array[0] = t; |
| } |
| } |
| |
| namespace test1 { |
| volatile int *x; |
| |
| // CHECK-LABEL: define void @_ZN5test14testEv() |
| void test() { |
| // CHECK: [[TMP:%.*]] = load i32*, i32** @_ZN5test11xE, align 8 |
| // CHECK-NEXT: ret void |
| *x; |
| } |
| } |