[llvm-commits] [llvm] r111212 - /llvm/trunk/test/CodeGen/ARM/2009-12-02-vtrn-undef.ll

[Bob Wilson]

Author: bwilson
Date: Mon Aug 16 18:44:29 2010
New Revision: 111212

URL: http://llvm.org/viewvc/llvm-project?rev=111212&view=rev
Log:
Add a testcase for svn 111208.

Modified:
    llvm/trunk/test/CodeGen/ARM/2009-12-02-vtrn-undef.ll

Modified: llvm/trunk/test/CodeGen/ARM/2009-12-02-vtrn-undef.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/2009-12-02-vtrn-undef.ll?rev=111212&r1=111211&r2=111212&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/2009-12-02-vtrn-undef.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/2009-12-02-vtrn-undef.ll Mon Aug 16 18:44:29 2010
@@ -17,3 +17,17 @@
   store <8 x i16> %1, <8 x i16>* %agg.result12.1.0, align 16
   ret void
 }
+
+; Radar 8290937: Ignore undef shuffle indices.
+; CHECK: t2
+; CHECK: vtrn.16
+define void @t2(%struct.int16x8x2_t* nocapture %ptr, <4 x i16> %a.0, <4 x i16> %b.0) nounwind {
+entry:
+  %0 = shufflevector <4 x i16> %a.0, <4 x i16> undef, <8 x i32> <i32 0, i32 0, i32 2, i32 2, i32 undef, i32 undef, i32 undef, i32 undef>
+  %1 = shufflevector <4 x i16> %a.0, <4 x i16> undef, <8 x i32> <i32 1, i32 1, i32 3, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
+  %ptr26.0 = getelementptr inbounds %struct.int16x8x2_t* %ptr, i32 0, i32 0, i32 0, i32 0
+  store <8 x i16> %0, <8 x i16>* %ptr26.0, align 16
+  %ptr20.1.0 = getelementptr inbounds %struct.int16x8x2_t* %ptr, i32 0, i32 0, i32 1, i32 0
+  store <8 x i16> %1, <8 x i16>* %ptr20.1.0, align 16
+  ret void
+}