| // RUN: %clang_cc1 -verify -fopenmp -O1 -disable-llvm-passes -x c -triple x86_64-unknown-linux-gnu -fopenmp-targets=x86_64-unknown-linux-gnu -emit-llvm %s -o - | FileCheck %s |
| // expected-no-diagnostics |
| |
| // The loop bounds used to compute a target region's trip count live in |
| // '.capture_expr.' allocas created by OMPLoopScope. The scope has to outlive |
| // the trip count computation, otherwise its cleanups emit lifetime.end before |
| // the loads and the trip count reads dead memory. |
| |
| void f(int n, int *a) { |
| #pragma omp target teams distribute parallel for |
| for (int i = 0; i < n; ++i) |
| a[i] = i; |
| } |
| |
| // CHECK-LABEL: define {{.*}}@f( |
| // CHECK: store i32 %{{.+}}, ptr %[[CE:\.capture_expr\.[0-9]+]], align 4 |
| // CHECK-NEXT: [[TC:%.+]] = load i32, ptr %[[CE]], align 4 |
| // CHECK-NEXT: [[ADD:%.+]] = add nsw i32 [[TC]], 1 |
| // CHECK-NEXT: [[EXT:%.+]] = zext i32 [[ADD]] to i64 |
| // CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr %[[CE]]) |
