diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/memcpy.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/CodeGen/X86/memcpy.ll b/test/CodeGen/X86/memcpy.ll index 16bf7c5a38..7bc31bec16 100644 --- a/test/CodeGen/X86/memcpy.ll +++ b/test/CodeGen/X86/memcpy.ll @@ -25,3 +25,33 @@ entry: ; CHECK: memcpy } +; Large constant memcpy's should lower to a call when optimizing for size. +; PR6623 +define void @test3(i8* nocapture %A, i8* nocapture %B) nounwind optsize noredzone { +entry: + tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %A, i8* %B, i64 64, i32 1, i1 false) + ret void +; CHECK: test3: +; CHECK: memcpy +} + +; Large constant memcpy's should be inlined when not optimizing for size. +define void @test4(i8* nocapture %A, i8* nocapture %B) nounwind noredzone { +entry: + tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %A, i8* %B, i64 64, i32 1, i1 false) + ret void +; CHECK: test4: +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +; CHECK: movq +} + |