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authorHao Liu <Hao.Liu@arm.com>2013-05-13 02:07:05 +0000
committerHao Liu <Hao.Liu@arm.com>2013-05-13 02:07:05 +0000
commit3778c04b2e3bc879cb7f175ba4d42f23fb9cef76 (patch)
treed362021d1e3028b1154e3b8473dd3eecaba168e8 /test/CodeGen/ARM
parent4a971705bc6030dc2e4338b3cd5cffa2e0f88b7b (diff)
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Fix PR15950 A bug in DAG Combiner about undef mask
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181682 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM')
-rw-r--r--test/CodeGen/ARM/2013-05-13-DAGCombiner-undef-mask.ll10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/2013-05-13-DAGCombiner-undef-mask.ll b/test/CodeGen/ARM/2013-05-13-DAGCombiner-undef-mask.ll
new file mode 100644
index 0000000000..8f6709ec5e
--- /dev/null
+++ b/test/CodeGen/ARM/2013-05-13-DAGCombiner-undef-mask.ll
@@ -0,0 +1,10 @@
+; RUN: llc < %s
+target triple = "armv7-none-linux-gnueabi"
+
+define <3 x i64> @shuffle(i1 %dec1, i1 %dec0, <3 x i64> %b) {
+entry:
+ %.sink = select i1 %dec1, <3 x i64> %b, <3 x i64> zeroinitializer
+ %.sink15 = select i1 %dec0, <3 x i64> %b, <3 x i64> zeroinitializer
+ %vecinit7 = shufflevector <3 x i64> %.sink, <3 x i64> %.sink15, <3 x i32> <i32 0, i32 4, i32 undef>
+ ret <3 x i64> %vecinit7
+}