From 99cebadb5c971b5946a727dfb09ba43b6d7fe542 Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Tue, 31 Dec 2013 19:30:47 +0000
Subject: Fold vector selects with undef elements in the condition. Fixes
 PR18319. Patch by Ilia Filippov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198267 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Assembler/ConstantExprFoldSelect.ll | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 test/Assembler/ConstantExprFoldSelect.ll

(limited to 'test/Assembler')

diff --git a/test/Assembler/ConstantExprFoldSelect.ll b/test/Assembler/ConstantExprFoldSelect.ll
new file mode 100644
index 0000000000..b000e02653
--- /dev/null
+++ b/test/Assembler/ConstantExprFoldSelect.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llvm-dis | FileCheck %s
+; PR18319
+
+define void @function() {
+  %c = trunc <4 x i16> select (<4 x i1> <i1 undef, i1 undef, i1 false, i1 true>, <4 x i16> <i16 undef, i16 2, i16 3, i16 4>, <4 x i16> <i16 -1, i16 -2, i16 -3, i16 -4>) to <4 x i8>
+; CHECK: <i16 undef, i16 -2, i16 -3, i16 4>
+  ret void
+}
-- 
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