1 // RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - | FileCheck %s 2 3 // rdar://problem/9506377 4 void test0(void *array, int n) { 5 // CHECK: define void @_Z5test0Pvi( 6 // CHECK: [[ARRAY:%.*]] = alloca i8*, align 8 7 // CHECK-NEXT: [[N:%.*]] = alloca i32, align 4 8 // CHECK-NEXT: [[REF:%.*]] = alloca i16*, align 8 9 // CHECK-NEXT: [[S:%.*]] = alloca i16, align 2 10 // CHECK-NEXT: store i8* 11 // CHECK-NEXT: store i32 12 13 // Capture the bounds. 14 // CHECK-NEXT: [[T0:%.*]] = load i32* [[N]], align 4 15 // CHECK-NEXT: [[DIM0:%.*]] = zext i32 [[T0]] to i64 16 // CHECK-NEXT: [[T0:%.*]] = load i32* [[N]], align 4 17 // CHECK-NEXT: [[T1:%.*]] = add nsw i32 [[T0]], 1 18 // CHECK-NEXT: [[DIM1:%.*]] = zext i32 [[T1]] to i64 19 typedef short array_t[n][n+1]; 20 21 // CHECK-NEXT: [[T0:%.*]] = load i8** [[ARRAY]], align 8 22 // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to i16* 23 // CHECK-NEXT: store i16* [[T1]], i16** [[REF]], align 8 24 array_t &ref = *(array_t*) array; 25 26 // CHECK-NEXT: [[T0:%.*]] = load i16** [[REF]] 27 // CHECK-NEXT: [[T1:%.*]] = mul nsw i64 1, [[DIM1]] 28 // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds i16* [[T0]], i64 [[T1]] 29 // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i16* [[T2]], i64 2 30 // CHECK-NEXT: store i16 3, i16* [[T3]] 31 ref[1][2] = 3; 32 33 // CHECK-NEXT: [[T0:%.*]] = load i16** [[REF]] 34 // CHECK-NEXT: [[T1:%.*]] = mul nsw i64 4, [[DIM1]] 35 // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds i16* [[T0]], i64 [[T1]] 36 // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i16* [[T2]], i64 5 37 // CHECK-NEXT: [[T4:%.*]] = load i16* [[T3]] 38 // CHECK-NEXT: store i16 [[T4]], i16* [[S]], align 2 39 short s = ref[4][5]; 40 41 // CHECK-NEXT: ret void 42 } 43 44