From 5cc924ac42f6ded8c560dcdf706c86634f5b0db7 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 7 May 2005 04:23:29 +0000
Subject: [PATCH] test that reassociate can handle shifts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21760 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/Reassociate/shifttest.ll | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 test/Transforms/Reassociate/shifttest.ll

diff --git a/test/Transforms/Reassociate/shifttest.ll b/test/Transforms/Reassociate/shifttest.ll
new file mode 100644
index 00000000000..6ca6622467f
--- /dev/null
+++ b/test/Transforms/Reassociate/shifttest.ll
@@ -0,0 +1,10 @@
+; With shl->mul reassociation, we can see that this is (shl A, 9) * A
+;
+; RUN: llvm-as < %s | opt -reassociate -instcombine | llvm-dis | grep 'shl .*, ubyte 9'
+
+int %test(int %A, int %B) {
+	%X = shl int %A, ubyte 5
+	%Y = shl int %A, ubyte 4
+	%Z = mul int %Y, %X
+	ret int %Z
+}
-- 
2.34.1