1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s 2 3 int* a = &(int){1}; 4 struct s {int a, b, c;} * b = &(struct s) {1, 2, 3}; 5 _Complex double * x = &(_Complex double){1.0f}; 6 typedef int v4i32 __attribute((vector_size(16))); 7 v4i32 *y = &(v4i32){1,2,3,4}; 8 9 void xxx() { 10 int* a = &(int){1}; 11 struct s {int a, b, c;} * b = &(struct s) {1, 2, 3}; 12 _Complex double * x = &(_Complex double){1.0f}; 13 } 14 15 // CHECK-LABEL: define void @f() 16 void f() { 17 typedef struct S { int x,y; } S; 18 // CHECK: [[S:%[a-zA-Z0-9.]+]] = alloca [[STRUCT:%[a-zA-Z0-9.]+]], 19 struct S s; 20 // CHECK-NEXT: [[COMPOUNDLIT:%[a-zA-Z0-9.]+]] = alloca [[STRUCT]] 21 // CHECK-NEXT: [[CX:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[COMPOUNDLIT]], i32 0, i32 0 22 // CHECK-NEXT: [[SY:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[S]], i32 0, i32 1 23 // CHECK-NEXT: [[TMP:%[a-zA-Z0-9.]+]] = load i32, i32* [[SY]] 24 // CHECK-NEXT: store i32 [[TMP]], i32* [[CX]] 25 // CHECK-NEXT: [[CY:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[COMPOUNDLIT]], i32 0, i32 1 26 // CHECK-NEXT: [[SX:%[a-zA-Z0-9.]+]] = getelementptr inbounds [[STRUCT]], [[STRUCT]]* [[S]], i32 0, i32 0 27 // CHECK-NEXT: [[TMP:%[a-zA-Z0-9.]+]] = load i32, i32* [[SX]] 28 // CHECK-NEXT: store i32 [[TMP]], i32* [[CY]] 29 // CHECK-NEXT: [[SI8:%[a-zA-Z0-9.]+]] = bitcast [[STRUCT]]* [[S]] to i8* 30 // CHECK-NEXT: [[COMPOUNDLITI8:%[a-zA-Z0-9.]+]] = bitcast [[STRUCT]]* [[COMPOUNDLIT]] to i8* 31 // CHECK-NEXT: call void @llvm.memcpy{{.*}}(i8* [[SI8]], i8* [[COMPOUNDLITI8]] 32 s = (S){s.y,s.x}; 33 // CHECK-NEXT: ret void 34 } 35 36 // CHECK-LABEL: define i48 @g( 37 struct G { short x, y, z; }; 38 struct G g(int x, int y, int z) { 39 // CHECK: [[RESULT:%.*]] = alloca [[G:%.*]], align 2 40 // CHECK-NEXT: [[X:%.*]] = alloca i32, align 4 41 // CHECK-NEXT: [[Y:%.*]] = alloca i32, align 4 42 // CHECK-NEXT: [[Z:%.*]] = alloca i32, align 4 43 // CHECK-NEXT: [[COERCE_TEMP:%.*]] = alloca i48 44 // CHECK-NEXT: store i32 45 // CHECK-NEXT: store i32 46 // CHECK-NEXT: store i32 47 48 // Evaluate the compound literal directly in the result value slot. 49 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 0 50 // CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[X]], align 4 51 // CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16 52 // CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2 53 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 1 54 // CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[Y]], align 4 55 // CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16 56 // CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2 57 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[G]], [[G]]* [[RESULT]], i32 0, i32 2 58 // CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[Z]], align 4 59 // CHECK-NEXT: [[T2:%.*]] = trunc i32 [[T1]] to i16 60 // CHECK-NEXT: store i16 [[T2]], i16* [[T0]], align 2 61 return (struct G) { x, y, z }; 62 63 // CHECK-NEXT: [[T0:%.*]] = bitcast i48* [[COERCE_TEMP]] to i8* 64 // CHECK-NEXT: [[T1:%.*]] = bitcast [[G]]* [[RESULT]] to i8* 65 // CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[T0]], i8* [[T1]], i64 6 66 // CHECK-NEXT: [[T0:%.*]] = load i48, i48* [[COERCE_TEMP]] 67 // CHECK-NEXT: ret i48 [[T0]] 68 } 69
