From d2b71e7fa9ff1cfd889a16bbf583bdce200236f9 Mon Sep 17 00:00:00 2001 From: Nuno Lopes Date: Thu, 3 May 2012 21:19:58 +0000 Subject: add support for calloc to objectsize lowering llvm-svn: 156102 --- llvm/test/Transforms/InstCombine/objsize.ll | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'llvm/test/Transforms') diff --git a/llvm/test/Transforms/InstCombine/objsize.ll b/llvm/test/Transforms/InstCombine/objsize.ll index 28ceb68b49a..6b5c0f56eb1 100644 --- a/llvm/test/Transforms/InstCombine/objsize.ll +++ b/llvm/test/Transforms/InstCombine/objsize.ll @@ -158,3 +158,23 @@ define i32 @test7() { ret i32 %objsize } +declare noalias i8* @calloc(i32, i32) nounwind + +define i32 @test8() { +; CHECK: @test8 + %alloc = call noalias i8* @calloc(i32 5, i32 7) nounwind + %gep = getelementptr inbounds i8* %alloc, i32 5 + %objsize = call i32 @llvm.objectsize.i32(i8* %gep, i1 false) nounwind readonly +; CHECK: ret i32 30 + ret i32 %objsize +} + +; test for overflow in calloc +define i32 @test9() { +; CHECK: @test9 + %alloc = call noalias i8* @calloc(i32 100000000, i32 100000000) nounwind + %gep = getelementptr inbounds i8* %alloc, i32 2 + %objsize = call i32 @llvm.objectsize.i32(i8* %gep, i1 true) nounwind readonly +; CHECK: ret i32 0 + ret i32 %objsize +} -- cgit v1.2.3