test vperm promotion

llvm-svn: 27454

1 files changed, 16 insertions, 0 deletions

diff --git a/llvm/test/Regression/CodeGen/PowerPC/vec_shuffle.ll b/llvm/test/Regression/CodeGen/PowerPC/vec_shuffle.ll
index a39fa90ce97..50e89efdd25 100644
--- a/llvm/test/Regression/CodeGen/PowerPC/vec_shuffle.ll
+++ b/llvm/test/Regression/CodeGen/PowerPC/vec_shuffle.ll
@@ -1,4 +1,5 @@
 ; RUN: llvm-as < %s | llc -march=ppc32 -mcpu=g5 | grep vsldoi | wc -l | grep 2
+; RUN: llvm-as < %s | opt -instcombine | llc -march=ppc32 -mcpu=g5 | not grep vperm
 
 void %VSLDOI_xy(<8 x short>* %A, <8 x short>* %B) {
 entry:
@@ -84,3 +85,18 @@ void %VSLDOI_xx(<8 x short>* %A, <8 x short>* %B) {
 	store <8 x short> %tmp33, <8 x short>* %A
 	ret void
 }
+
+void %VPERM_promote(<8 x short>* %A, <8 x short>* %B) {
+entry:
+        %tmp = load <8 x short>* %A             ; <<8 x short>> [#uses=1]
+        %tmp = cast <8 x short> %tmp to <4 x int>               ; <<4 x int>> [#uses=1]
+        %tmp2 = load <8 x short>* %B            ; <<8 x short>> [#uses=1]
+        %tmp2 = cast <8 x short> %tmp2 to <4 x int>             ; <<4 x int>> [#uses=1]
+        %tmp3 = call <4 x int> %llvm.ppc.altivec.vperm( <4 x int> %tmp, <4 x int> %tmp2, <16 x sbyte> < sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14, sbyte 14 > )                ; <<4 x int>> [#uses=1]
+        %tmp3 = cast <4 x int> %tmp3 to <8 x short>             ; <<8 x short>> [#uses=1]
+        store <8 x short> %tmp3, <8 x short>* %A
+        ret void
+}
+
+declare <4 x int> %llvm.ppc.altivec.vperm(<4 x int>, <4 x int>, <16 x sbyte>)
+