69 lines
3.2 KiB
C
69 lines
3.2 KiB
C
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
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int* a = &(int){1};
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struct s {int a, b, c;} * b = &(struct s) {1, 2, 3};
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_Complex double * x = &(_Complex double){1.0f};
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typedef int v4i32 __attribute((vector_size(16)));
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v4i32 *y = &(v4i32){1,2,3,4};
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void xxx() {
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int* a = &(int){1};
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struct s {int a, b, c;} * b = &(struct s) {1, 2, 3};
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_Complex double * x = &(_Complex double){1.0f};
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}
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// CHECK-LABEL: define void @f()
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void f() {
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typedef struct S { int x,y; } S;
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// CHECK: [[S:%[a-zA-Z0-9.]+]] = alloca [[STRUCT:%[a-zA-Z0-9.]+]],
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struct S s;
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// CHECK-NEXT: [[COMPOUNDLIT:%[a-zA-Z0-9.]+]] = alloca [[STRUCT]]
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// CHECK-NEXT: [[CX:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[COMPOUNDLIT]], i32 0, i32 0
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// CHECK-NEXT: [[SY:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[S]], i32 0, i32 1
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// CHECK-NEXT: [[TMP:%[a-zA-Z0-9.]+]] = load i32, i32* [[SY]]
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// CHECK-NEXT: store i32 [[TMP]], i32* [[CX]]
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// CHECK-NEXT: [[CY:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[COMPOUNDLIT]], i32 0, i32 1
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// CHECK-NEXT: [[SX:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[S]], i32 0, i32 0
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// CHECK-NEXT: [[TMP:%[a-zA-Z0-9.]+]] = load i32, i32* [[SX]]
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// CHECK-NEXT: store i32 [[TMP]], i32* [[CY]]
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// CHECK-NEXT: [[SI8:%[a-zA-Z0-9.]+]] = bitcast [[STRUCT]]* [[S]] to i8*
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// CHECK-NEXT: [[COMPOUNDLITI8:%[a-zA-Z0-9.]+]] = bitcast [[STRUCT]]* [[COMPOUNDLIT]] to i8*
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// CHECK-NEXT: call void @llvm.memcpy{{.*}}(i8* [[SI8]], i8* [[COMPOUNDLITI8]]
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s = (S){s.y,s.x};
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define i48 @g(
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struct G { short x, y, z; };
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struct G g(int x, int y, int z) {
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// CHECK: [[RESULT:%.*]] = alloca [[G:%.*]], align 2
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// CHECK-NEXT: [[X:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[Y:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[Z:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[COERCE_TEMP:%.*]] = alloca i48
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// CHECK-NEXT: store i32
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// CHECK-NEXT: store i32
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// CHECK-NEXT: store i32
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// Evaluate the compound literal directly in the result value slot.
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 0
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// CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[X]], align 4
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// CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16
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// CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 1
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// CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[Y]], align 4
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// CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16
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// CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 2
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// CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[Z]], align 4
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// CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16
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// CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2
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return (struct G) { x, y, z };
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// CHECK-NEXT: [[T0:%.*]] = bitcast i48* [[COERCE_TEMP]] to i8*
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// CHECK-NEXT: [[T1:%.*]] = bitcast [[G]]* [[RESULT]] to i8*
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// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[T0]], i8* [[T1]], i64 6
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// CHECK-NEXT: [[T0:%.*]] = load i48, i48* [[COERCE_TEMP]]
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// CHECK-NEXT: ret i48 [[T0]]
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}
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