From 21323f3a829df0e6d9b4566a551619a01e269ba6 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Thu, 29 May 2008 19:42:22 +0000 Subject: Expand small memmovs using inline code. Set the X86 threshold for expanding memmove to a more plausible value, now that it's actually being used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51696 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/X86/memmove-4.ll | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 test/CodeGen/X86/memmove-4.ll (limited to 'test/CodeGen/X86/memmove-4.ll') diff --git a/test/CodeGen/X86/memmove-4.ll b/test/CodeGen/X86/memmove-4.ll new file mode 100644 index 0000000..f23c7d5 --- /dev/null +++ b/test/CodeGen/X86/memmove-4.ll @@ -0,0 +1,12 @@ +; RUN: llvm-as < %s | llc | not grep call + +target triple = "i686-pc-linux-gnu" + +define void @a(i8* %a, i8* %b) nounwind { + %tmp2 = bitcast i8* %a to i8* + %tmp3 = bitcast i8* %b to i8* + tail call void @llvm.memmove.i32( i8* %tmp2, i8* %tmp3, i32 12, i32 4 ) + ret void +} + +declare void @llvm.memmove.i32(i8*, i8*, i32, i32) -- cgit v1.1