diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-12-24 01:00:08 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-12-24 01:00:08 +0000 |
| commit | c7dac04c3480f3c20487f912f77343139fce2d99 (patch) | |
| tree | 21a09bce0171e27bd1e92649db9df797fa097cea /test/Transforms/MemCpyOpt/memcpy-invoke-memcpy.ll | |
| parent | 044eb2f6afba375a914ac9d8024f8f5142bb912e (diff) | |
Diffstat (limited to 'test/Transforms/MemCpyOpt/memcpy-invoke-memcpy.ll')
| -rw-r--r-- | test/Transforms/MemCpyOpt/memcpy-invoke-memcpy.ll | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/Transforms/MemCpyOpt/memcpy-invoke-memcpy.ll b/test/Transforms/MemCpyOpt/memcpy-invoke-memcpy.ll new file mode 100644 index 0000000000000..e3d1f6dd2b170 --- /dev/null +++ b/test/Transforms/MemCpyOpt/memcpy-invoke-memcpy.ll @@ -0,0 +1,48 @@ +; RUN: opt < %s -memcpyopt -S | FileCheck %s +; Test memcpy-memcpy dependencies across invoke edges. + +; Test that memcpyopt works across the non-unwind edge of an invoke. + +define hidden void @test_normal(i8* noalias %dst, i8* %src) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { +entry: + %temp = alloca i8, i32 64 + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %temp, i8* nonnull %src, i64 64, i32 8, i1 false) +; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %temp, i8* nonnull %src, i64 64, i32 8, i1 false) + invoke void @invoke_me() + to label %try.cont unwind label %lpad + +lpad: + landingpad { i8*, i32 } + catch i8* null + ret void + +try.cont: + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %temp, i64 64, i32 8, i1 false) +; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 64, i32 8, i1 false) + ret void +} + +; Test that memcpyopt works across the unwind edge of an invoke. + +define hidden void @test_unwind(i8* noalias %dst, i8* %src) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { +entry: + %temp = alloca i8, i32 64 + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %temp, i8* nonnull %src, i64 64, i32 8, i1 false) +; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %temp, i8* nonnull %src, i64 64, i32 8, i1 false) + invoke void @invoke_me() + to label %try.cont unwind label %lpad + +lpad: + landingpad { i8*, i32 } + catch i8* null + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %temp, i64 64, i32 8, i1 false) +; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 64, i32 8, i1 false) + ret void + +try.cont: + ret void +} + +declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i32, i1) +declare i32 @__gxx_personality_v0(...) +declare void @invoke_me() readnone |