1// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
2
3// Validate that volatile _Complex loads and stores are generated
4// properly, including their alignment (even when overaligned).
5//
6// This test assumes that floats are 32-bit aligned and doubles are
7// 64-bit aligned, and uses x86-64 as a target that should have this
8// property.
9
10volatile _Complex float cf;
11volatile _Complex double cd;
12volatile _Complex float cf32 __attribute__((aligned(32)));
13volatile _Complex double cd32 __attribute__((aligned(32)));
14
15// CHECK-LABEL: define void @test_cf()
16void test_cf() {
17  // CHECK:      load volatile float* getelementptr inbounds ({ float, float }* @cf, i32 0, i32 0), align 4
18  // CHECK-NEXT: load volatile float* getelementptr inbounds ({ float, float }* @cf, i32 0, i32 1), align 4
19  (void)(cf);
20  // CHECK-NEXT: [[R:%.*]] = load volatile float* getelementptr inbounds ({ float, float }* @cf, i32 0, i32 0), align 4
21  // CHECK-NEXT: [[I:%.*]] = load volatile float* getelementptr inbounds ({ float, float }* @cf, i32 0, i32 1), align 4
22  // CHECK-NEXT: store volatile float [[R]], float* getelementptr inbounds ({ float, float }* @cf, i32 0, i32 0), align 4
23  // CHECK-NEXT: store volatile float [[I]], float* getelementptr inbounds ({ float, float }* @cf, i32 0, i32 1), align 4
24  (void)(cf=cf);
25  // CHECK-NEXT: ret void
26}
27
28// CHECK-LABEL: define void @test_cd()
29void test_cd() {
30  // CHECK:      load volatile double* getelementptr inbounds ({ double, double }* @cd, i32 0, i32 0), align 8
31  // CHECK-NEXT: load volatile double* getelementptr inbounds ({ double, double }* @cd, i32 0, i32 1), align 8
32  (void)(cd);
33  // CHECK-NEXT: [[R:%.*]] = load volatile double* getelementptr inbounds ({ double, double }* @cd, i32 0, i32 0), align 8
34  // CHECK-NEXT: [[I:%.*]] = load volatile double* getelementptr inbounds ({ double, double }* @cd, i32 0, i32 1), align 8
35  // CHECK-NEXT: store volatile double [[R]], double* getelementptr inbounds ({ double, double }* @cd, i32 0, i32 0), align 8
36  // CHECK-NEXT: store volatile double [[I]], double* getelementptr inbounds ({ double, double }* @cd, i32 0, i32 1), align 8
37  (void)(cd=cd);
38  // CHECK-NEXT: ret void
39}
40
41// CHECK-LABEL: define void @test_cf32()
42void test_cf32() {
43  // CHECK:      load volatile float* getelementptr inbounds ({ float, float }* @cf32, i32 0, i32 0), align 32
44  // CHECK-NEXT: load volatile float* getelementptr inbounds ({ float, float }* @cf32, i32 0, i32 1), align 4
45  (void)(cf32);
46  // CHECK-NEXT: [[R:%.*]] = load volatile float* getelementptr inbounds ({ float, float }* @cf32, i32 0, i32 0), align 32
47  // CHECK-NEXT: [[I:%.*]] = load volatile float* getelementptr inbounds ({ float, float }* @cf32, i32 0, i32 1), align 4
48  // CHECK-NEXT: store volatile float [[R]], float* getelementptr inbounds ({ float, float }* @cf32, i32 0, i32 0), align 32
49  // CHECK-NEXT: store volatile float [[I]], float* getelementptr inbounds ({ float, float }* @cf32, i32 0, i32 1), align 4
50  (void)(cf32=cf32);
51  // CHECK-NEXT: ret void
52}
53
54// CHECK-LABEL: define void @test_cd32()
55void test_cd32() {
56  // CHECK:      load volatile double* getelementptr inbounds ({ double, double }* @cd32, i32 0, i32 0), align 32
57  // CHECK-NEXT: load volatile double* getelementptr inbounds ({ double, double }* @cd32, i32 0, i32 1), align 8
58  (void)(cd32);
59  // CHECK-NEXT: [[R:%.*]] = load volatile double* getelementptr inbounds ({ double, double }* @cd32, i32 0, i32 0), align 32
60  // CHECK-NEXT: [[I:%.*]] = load volatile double* getelementptr inbounds ({ double, double }* @cd32, i32 0, i32 1), align 8
61  // CHECK-NEXT: store volatile double [[R]], double* getelementptr inbounds ({ double, double }* @cd32, i32 0, i32 0), align 32
62  // CHECK-NEXT: store volatile double [[I]], double* getelementptr inbounds ({ double, double }* @cd32, i32 0, i32 1), align 8
63  (void)(cd32=cd32);
64  // CHECK-NEXT: ret void
65}
66