From 43c4361178465bff33205c7e8c6be7253b75fe4e Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sat, 28 Feb 2004 05:28:42 +0000 Subject: [PATCH] new testcase for intrinsic folding git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11943 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/InstCombine/call-intrinsics.ll | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 test/Transforms/InstCombine/call-intrinsics.ll diff --git a/test/Transforms/InstCombine/call-intrinsics.ll b/test/Transforms/InstCombine/call-intrinsics.ll new file mode 100644 index 00000000000..07435c4a3bd --- /dev/null +++ b/test/Transforms/InstCombine/call-intrinsics.ll @@ -0,0 +1,17 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis + +declare void %llvm.memmove(sbyte*, sbyte*, uint, uint) +declare void %llvm.memcpy(sbyte*, sbyte*, uint, uint) +declare void %llvm.memset(sbyte*, ubyte, uint, uint) + +%X = global sbyte 0 +%Y = global sbyte 12 + +void %zero_byte_test() { + ; These process zero bytes, so they are a noop. + call void %llvm.memmove(sbyte* %X, sbyte* %Y, uint 0, uint 100) + call void %llvm.memcpy(sbyte* %X, sbyte* %Y, uint 0, uint 100) + call void %llvm.memset(sbyte* %X, ubyte 123, uint 0, uint 100) + ret void +} + -- 2.11.0