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