20 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-unknown-gnu-linux -emit-llvm %s -o - | FileCheck %s2 3// CHECK-LABEL: define dso_local noundef i32 @_Z4testi(4// CHECK-SAME: i32 noundef [[I:%.*]]) #[[ATTR0:[0-9]+]] {5// CHECK-NEXT: entry:6// CHECK-NEXT: [[I_ADDR:%.*]] = alloca i32, align 47// CHECK-NEXT: store i32 [[I]], ptr [[I_ADDR]], align 48// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[I_ADDR]], align 49// CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP0]], 110// CHECK-NEXT: store i32 [[INC]], ptr [[I_ADDR]], align 411// CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i6412// CHECK-NEXT: [[TMP2:%.*]] = mul nuw i64 4, [[TMP1]]13// CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[I_ADDR]], align 414// CHECK-NEXT: ret i32 [[TMP3]]15//16int test(int i) {17 (void)__datasizeof(int[i++]);18 return i;19}20