From 73f565e7546f63900738cd31a2f956444e7bb544 Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Wed, 19 Jan 2011 15:56:12 +0000
Subject: Add a missing SCEV simplification sext(zext x) --> zext x.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123832 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Analysis/ScalarEvolution/fold.ll | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 test/Analysis/ScalarEvolution/fold.ll

(limited to 'test/Analysis')

diff --git a/test/Analysis/ScalarEvolution/fold.ll b/test/Analysis/ScalarEvolution/fold.ll
new file mode 100644
index 0000000..202ddd4
--- /dev/null
+++ b/test/Analysis/ScalarEvolution/fold.ll
@@ -0,0 +1,8 @@
+; RUN: opt -analyze -scalar-evolution %s -S | FileCheck %s
+
+define i16 @test(i8 %x) {
+  %A = zext i8 %x to i12
+  %B = sext i12 %A to i16
+; CHECK: zext i8 %x to i16
+  ret i16 %B
+}
-- 
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