diff options
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/MemCpyOpt/memcpy.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/llvm/test/Transforms/MemCpyOpt/memcpy.ll b/llvm/test/Transforms/MemCpyOpt/memcpy.ll index 6181543cfc6..f638d8d5701 100644 --- a/llvm/test/Transforms/MemCpyOpt/memcpy.ll +++ b/llvm/test/Transforms/MemCpyOpt/memcpy.ll @@ -202,6 +202,21 @@ define void @test10(%opaque* noalias nocapture sret %x, i32 %y) { ret void } +; don't create new addressspacecasts when we don't know they're safe for the target +define void @test11([20 x i32] addrspace(1)* nocapture dereferenceable(80) %P) { + %A = alloca [20 x i32], align 4 + %a = bitcast [20 x i32]* %A to i8* + %b = bitcast [20 x i32] addrspace(1)* %P to i8 addrspace(1)* + call void @llvm.memset.p0i8.i64(i8* %a, i8 0, i64 80, i32 4, i1 false) + call void @llvm.memcpy.p1i8.p0i8.i64(i8 addrspace(1)* %b, i8* %a, i64 80, i32 4, i1 false) + ret void +; CHECK-LABEL: @test11( +; CHECK-NOT: addrspacecast +} + +declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind +declare void @llvm.memcpy.p1i8.p0i8.i64(i8 addrspace(1)* nocapture, i8* nocapture, i64, i32, i1) nounwind + declare void @f1(%struct.big* nocapture sret) declare void @f2(%struct.big*) |
