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| author | Chad Rosier <mcrosier@apple.com> | 2012-02-27 18:45:03 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@apple.com> | 2012-02-27 18:45:03 +0000 |
| commit | 07d164266d9563919d07d423ce00655fcfa8a4d4 (patch) | |
| tree | 293202e9dc43e057e4516e9ce64c5df49a333d6f | |
| parent | 1b1a507098bac79bb1d48db09f52ba98b000df9a (diff) | |
Test case for r151429/r151430, which ensures llvm.lifetime intrinsics are not
being emitted at -O0, but are emitted when optimizations are enabled.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151533 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/CodeGen/lifetime.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/lifetime.c b/test/CodeGen/lifetime.c new file mode 100644 index 0000000000..2203840d4b --- /dev/null +++ b/test/CodeGen/lifetime.c @@ -0,0 +1,23 @@ +// RUN: %clang -S -emit-llvm -o - -O0 %s | FileCheck %s -check-prefix=O0 +// RUN: %clang -S -emit-llvm -o - -O1 %s | FileCheck %s -check-prefix=O1 +// RUN: %clang -S -emit-llvm -o - -O2 %s | FileCheck %s -check-prefix=O2 +// RUN: %clang -S -emit-llvm -o - -O3 %s | FileCheck %s -check-prefix=O3 + +extern void use(char *a); + +__attribute__((always_inline)) void helper_no_markers() { + char a; + use(&a); +} + +void lifetime_test() { +// O0: lifetime_test +// O1: lifetime_test +// O2: lifetime_test +// O3: lifetime_test +// O0-NOT: @llvm.lifetime.start +// O1: @llvm.lifetime.start +// O2: @llvm.lifetime.start +// O3: @llvm.lifetime.start + helper_no_markers(); +} |