| John McCall | bc8d40d | 2011-06-24 21:55:10 +0000 | [diff] [blame^] | 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 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 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 | |