From: Chris Lattner <sabre@nondot.org>
Date: Mon, 23 Feb 2004 20:19:51 +0000 (+0000)
Subject: New testcase
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=cedfd2c78d845336501df3b6eceb430b58783aa4;p=oota-llvm.git

New testcase


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11766 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll b/test/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll
new file mode 100644
index 00000000000..911a73f57c2
--- /dev/null
+++ b/test/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep 34
+
+int %test(int %X) {
+	; Do not fold into shr X, 34, as this uses undefined behavior!
+	%Y = shr int %X, ubyte 17
+	%Z = shr int %Y, ubyte 17
+	ret int %Z
+}