From 240d42d18559a1f75558951ada556baaf289c7f0 Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Thu, 6 Jan 2011 13:11:05 +0000 Subject: InstCombine: If we call llvm.objectsize on a malloc call we can replace it with the size passed to malloc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122959 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/InstCombine/objsize.ll | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'test/Transforms/InstCombine/objsize.ll') diff --git a/test/Transforms/InstCombine/objsize.ll b/test/Transforms/InstCombine/objsize.ll index 043525b755..9950e5f4cc 100644 --- a/test/Transforms/InstCombine/objsize.ll +++ b/test/Transforms/InstCombine/objsize.ll @@ -160,3 +160,19 @@ define i32 @test7() { ret i32 %objsize } +define i32 @test8(i32 %x) { +; CHECK: @test8 + %alloc = call noalias i8* @malloc(i32 %x) nounwind + %objsize = call i32 @llvm.objectsize.i32(i8* %alloc, i1 false) nounwind readonly +; CHECK-NEXT: ret i32 %x + ret i32 %objsize +} + +define i32 @test9(i32 %x) { +; CHECK: @test9 + %alloc = call noalias i8* @malloc(i32 %x) nounwind + %gep = getelementptr inbounds i8* %alloc, i32 16 + %objsize = call i32 @llvm.objectsize.i32(i8* %gep, i1 false) nounwind readonly +; CHECK-NOT: ret i32 %x + ret i32 %objsize +} -- cgit v1.2.3