| // RUN: %clang_cc1 -triple x86_64-unknown-gnu-linux -emit-llvm %s -o - | FileCheck %s |
| |
| // CHECK-LABEL: define dso_local noundef i32 @_Z4testi( |
| // CHECK-SAME: i32 noundef [[I:%.*]]) #[[ATTR0:[0-9]+]] { |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: [[I_ADDR:%.*]] = alloca i32, align 4 |
| // CHECK-NEXT: store i32 [[I]], ptr [[I_ADDR]], align 4 |
| // CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[I_ADDR]], align 4 |
| // CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP0]], 1 |
| // CHECK-NEXT: store i32 [[INC]], ptr [[I_ADDR]], align 4 |
| // CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 |
| // CHECK-NEXT: [[TMP2:%.*]] = mul nuw i64 4, [[TMP1]] |
| // CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[I_ADDR]], align 4 |
| // CHECK-NEXT: ret i32 [[TMP3]] |
| // |
| int test(int i) { |
| (void)__datasizeof(int[i++]); |
| return i; |
| } |
