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