| // RUN: %clang_cc1 %s -triple x86_64-unknown-unknown -emit-llvm -o - | FileCheck %s |
| |
| struct P1 { char x[6]; } g1 = { "foo" }; |
| struct LP1 { struct P1 p1; }; |
| |
| struct P2 { int a, b, c; } g2 = { 1, 2, 3 }; |
| struct LP2 { struct P2 p2; }; |
| struct LP2P2 { struct P2 p1, p2; }; |
| union UP2 { struct P2 p2; }; |
| |
| struct LP3 { struct P1 p1[2]; } g3 = { { "dog" }, { "cat" } }; |
| struct LLP3 { struct LP3 l3; }; |
| union ULP3 { struct LP3 l3; }; |
| |
| // CHECK-LABEL: test1 |
| void test1(void) |
| { |
| // CHECK: call void @llvm.memcpy{{.*}}%struct.P1, %struct.P1* @g1{{.*}}i64 6, i32 {{[0-9]}}, i1 false) |
| // CHECK: store i8 120, i8* % |
| |
| struct LP1 l = { .p1 = g1, .p1.x[2] = 'x' }; |
| } |
| |
| // CHECK-LABEL: test2 |
| void test2(void) |
| { |
| // CHECK: call void @llvm.memcpy{{.*}}%struct.P1, %struct.P1* @g1{{.*}}i64 6, i32 {{[0-9]}}, i1 false) |
| // CHECK: store i8 114, i8* % |
| |
| struct LP1 l = { .p1 = g1, .p1.x[1] = 'r' }; |
| } |
| |
| // CHECK-LABEL: test3 |
| void test3(void) |
| { |
| // CHECK: call void @llvm.memcpy{{.*}}%struct.P2* @g2{{.*}}i64 12, i32 {{[0-9]}}, i1 false) |
| // CHECK: store i32 10, i32* % |
| |
| struct LP2 l = { .p2 = g2, .p2.b = 10 }; |
| } |
| |
| // CHECK-LABEL: get235 |
| struct P2 get235() |
| { |
| struct P2 p = { 2, 3, 5 }; |
| return p; |
| } |
| |
| // CHECK-LABEL: get456789 |
| struct LP2P2 get456789() |
| { |
| struct LP2P2 l = { { 4, 5, 6 }, { 7, 8, 9 } }; |
| return l; |
| } |
| |
| // CHECK-LABEL: get123 |
| union UP2 get123() |
| { |
| union UP2 u = { { 1, 2, 3 } }; |
| return u; |
| } |
| |
| // CHECK-LABEL: test4 |
| void test4(void) |
| { |
| // CHECK: [[CALL:%[a-z0-9]+]] = call {{.*}}@get123() |
| // CHECK: store{{.*}}[[CALL]], {{.*}}[[TMP0:%[a-z0-9]+]] |
| // CHECK: [[TMP1:%[a-z0-9]+]] = bitcast {{.*}}[[TMP0]] |
| // CHECK: call void @llvm.memcpy{{.*}}[[TMP1]], i64 12, i32 {{[0-9]}}, i1 false) |
| // CHECK: store i32 100, i32* % |
| |
| struct LUP2 { union UP2 up; } var = { get123(), .up.p2.a = 100 }; |
| } |
| |
| // CHECK-LABEL: test5 |
| void test5(void) |
| { |
| // .l3 = g3 |
| // CHECK: call void @llvm.memcpy{{.*}}%struct.LP3, %struct.LP3* @g3{{.*}}i64 12, i32 {{[0-9]}}, i1 false) |
| |
| // .l3.p1 = { [0] = g1 } implicitly sets [1] to zero |
| // CHECK: call void @llvm.memcpy{{.*}}%struct.P1, %struct.P1* @g1{{.*}}i64 6, i32 {{[0-9]}}, i1 false) |
| // CHECK: getelementptr{{.*}}%struct.P1, %struct.P1*{{.*}}i64 1 |
| // CHECK: call void @llvm.memset{{.*}}i8 0, i64 6, i32 {{[0-9]}}, i1 false) |
| |
| // .l3.p1[1].x[1] = 'x' |
| // CHECK: store i8 120, i8* % |
| |
| struct LLP3 var = { .l3 = g3, .l3.p1 = { [0] = g1 }, .l3.p1[1].x[1] = 'x' }; |
| } |
| |
| // CHECK-LABEL: test6 |
| void test6(void) |
| { |
| // CHECK: [[LP:%[a-z0-9]+]] = getelementptr{{.*}}%struct.LLP2P2, %struct.LLP2P2*{{.*}}, i32 0, i32 0 |
| // CHECK: call {{.*}}get456789(%struct.LP2P2* {{.*}}[[LP]]) |
| |
| // CHECK: [[CALL:%[a-z0-9]+]] = call {{.*}}@get235() |
| // CHECK: store{{.*}}[[CALL]], {{.*}}[[TMP0:%[a-z0-9]+]] |
| // CHECK: [[TMP1:%[a-z0-9]+]] = bitcast {{.*}}[[TMP0]] |
| // CHECK: call void @llvm.memcpy{{.*}}[[TMP1]], i64 12, i32 {{[0-9]}}, i1 false) |
| |
| // CHECK: store i32 10, i32* % |
| |
| struct LLP2P2 { struct LP2P2 lp; } var = { get456789(), |
| .lp.p1 = get235(), |
| .lp.p1.b = 10 }; |
| } |