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-rw-r--r--clang/test/CodeGen/partial-reinitialization1.c74
-rw-r--r--clang/test/CodeGen/partial-reinitialization2.c108
2 files changed, 182 insertions, 0 deletions
diff --git a/clang/test/CodeGen/partial-reinitialization1.c b/clang/test/CodeGen/partial-reinitialization1.c
new file mode 100644
index 00000000000..6a764b7fb02
--- /dev/null
+++ b/clang/test/CodeGen/partial-reinitialization1.c
@@ -0,0 +1,74 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown %s -emit-llvm -o - | FileCheck %s
+
+struct P1 {
+ struct Q1 {
+ char a[6];
+ char b[6];
+ } q;
+};
+
+// CHECK: { [6 x i8] c"foo\00\00\00", [6 x i8] c"\00x\00\00\00\00" }
+struct P1 l1 = {
+ (struct Q1){ "foo", "bar" },
+ .q.b = { "boo" },
+ .q.b = { [1] = 'x' }
+};
+
+// CHECK: { [6 x i8] c"foo\00\00\00", [6 x i8] c"bxo\00\00\00" }
+struct P1 l1a = {
+ (struct Q1){ "foo", "bar" },
+ .q.b = { "boo" },
+ .q.b[1] = 'x'
+};
+
+
+struct P2 { char x[6]; };
+
+// CHECK: { [6 x i8] c"n\00\00\00\00\00" }
+struct P2 l2 = {
+ .x = { [1] = 'o' },
+ .x = { [0] = 'n' }
+};
+
+struct P3 {
+ struct Q3 {
+ struct R1 {
+ int a, b, c;
+ } r1;
+
+ struct R2 {
+ int d, e, f;
+ } r2;
+ } q;
+};
+
+// CHECK: @l3 = global %struct.P3 { %struct.Q3 { %struct.R1 { i32 1, i32 2, i32 3 }, %struct.R2 { i32 0, i32 10, i32 0 } } }
+struct P3 l3 = {
+ (struct Q3){ { 1, 2, 3 }, { 4, 5, 6 } },
+ .q.r2 = { 7, 8, 9 },
+ .q.r2 = { .e = 10 }
+};
+
+// This bit is taken from Sema/wchar.c so we can avoid the wchar.h include.
+typedef __WCHAR_TYPE__ wchar_t;
+
+struct P4 {
+ wchar_t x[6];
+};
+
+// CHECK: { [6 x i32] [i32 102, i32 111, i32 120, i32 0, i32 0, i32 0] }
+struct P4 l4 = { { L"foo" }, .x[2] = L'x' };
+
+struct P5 {
+ int x;
+ struct Q5 {
+ int a, b, c;
+ } q;
+ int y;
+};
+
+// A three-pass test
+// CHECK: @l5 = global %struct.P5 { i32 1, %struct.Q5 { i32 6, i32 9, i32 8 }, i32 5 }
+struct P5 l5 = { 1, { 2, 3, 4 }, 5,
+ .q = { 6, 7, 8 },
+ .q.b = 9 };
diff --git a/clang/test/CodeGen/partial-reinitialization2.c b/clang/test/CodeGen/partial-reinitialization2.c
new file mode 100644
index 00000000000..f8885623713
--- /dev/null
+++ b/clang/test/CodeGen/partial-reinitialization2.c
@@ -0,0 +1,108 @@
+// 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* %arrayinit
+
+ 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* %arrayinit
+
+ 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* %b
+
+ 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* %a
+
+ 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* %arrayinit
+
+ 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* %b
+
+ struct LLP2P2 { struct LP2P2 lp; } var = { get456789(),
+ .lp.p1 = get235(),
+ .lp.p1.b = 10 };
+}
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