test vperm promotion

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27454 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/PowerPC/vec_shuffle.ll b/test/CodeGen/PowerPC/vec_shuffle.ll
index a39fa90ce974765b72e68e3fe5c6df41bf516bad..50e89efdd25ba010c5869da452eac0dd802d20bd 100644 (file)
--- a/test/CodeGen/PowerPC/vec_shuffle.ll
+++ b/test/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>)
+