Add tests for 16-bit byteswaps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29086 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 15 insertions, 1 deletions

diff --git a/test/Transforms/InstCombine/bswap.ll b/test/Transforms/InstCombine/bswap.ll
index 75cfc1daed..6f434e3f27 100644
--- a/test/Transforms/InstCombine/bswap.ll
+++ b/test/Transforms/InstCombine/bswap.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'call.*llvm.bswap' | wc -l | grep 2
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'call.*llvm.bswap' | wc -l | grep 4
 
 uint %test1(uint %i) {
         %tmp1 = shr uint %i, ubyte 24           ; <uint> [#uses=1]
@@ -26,3 +26,17 @@ uint %test2(uint %arg) {
         ret uint %tmp14
 }
 
+ushort %test3(ushort %s) {
+        %tmp2 = shr ushort %s, ubyte 8
+        %tmp4 = shl ushort %s, ubyte 8
+        %tmp5 = or ushort %tmp2, %tmp4
+	ret ushort %tmp5
+}
+
+ushort %test4(ushort %s) {
+        %tmp2 = shr ushort %s, ubyte 8
+        %tmp4 = shl ushort %s, ubyte 8
+        %tmp5 = or ushort %tmp4, %tmp2
+	ret ushort %tmp5
+}
+