From 9d8f002d8f5a5aba665bb6f85c19eee77810043c Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Tue, 23 Mar 2010 06:06:09 +0000 Subject: Fix an incorrect logic causing instcombine to miss some _chk -> non-chk transformations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99263 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/InstCombine/objsize.ll | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'test/Transforms') diff --git a/test/Transforms/InstCombine/objsize.ll b/test/Transforms/InstCombine/objsize.ll index cd7b7c8..f8b2ffc 100644 --- a/test/Transforms/InstCombine/objsize.ll +++ b/test/Transforms/InstCombine/objsize.ll @@ -118,6 +118,7 @@ entry: ret i32 0 } +; rdar://7782496 @s = external global i8* define void @test5(i32 %n) nounwind ssp { @@ -127,11 +128,23 @@ entry: %1 = tail call i32 @llvm.objectsize.i32(i8* %0, i1 false) %2 = load i8** @s, align 8 ; CHECK-NOT: @llvm.objectsize -; CHECK: @__memcpy_chk(i8* %0, i8* %1, i32 10, i32 20) +; CHECK: @llvm.memcpy.i32(i8* %0, i8* %1, i32 10, i32 1) %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 10, i32 %1) nounwind ret void } +define void @test6(i32 %n) nounwind ssp { +; CHECK: @test6 +entry: + %0 = tail call noalias i8* @malloc(i32 20) nounwind + %1 = tail call i32 @llvm.objectsize.i32(i8* %0, i1 false) + %2 = load i8** @s, align 8 +; CHECK-NOT: @llvm.objectsize +; CHECK: @__memcpy_chk(i8* %0, i8* %1, i32 30, i32 20) + %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 30, i32 %1) nounwind + ret void +} + declare i8* @__memset_chk(i8*, i32, i64, i64) nounwind declare noalias i8* @malloc(i32) nounwind -- cgit v1.1