Add testcases for new rlwinm cases handled, patch by Jim Laskey!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22730 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 44 insertions, 1 deletions

diff --git a/test/CodeGen/PowerPC/rlwinm.ll b/test/CodeGen/PowerPC/rlwinm.ll
index 54cf82e1a2..bb08402d25 100644
--- a/test/CodeGen/PowerPC/rlwinm.ll
+++ b/test/CodeGen/PowerPC/rlwinm.ll
@@ -1,6 +1,6 @@
 ; All of these ands and shifts should be folded into rlwimi's
 ; RUN: llvm-as < rlwinm.ll | llc -march=ppc32 | not grep and && 
-; RUN: llvm-as < rlwinm.ll | llc -march=ppc32 | grep rlwinm | wc -l | grep 2
+; RUN: llvm-as < rlwinm.ll | llc -march=ppc32 | grep rlwinm | wc -l | grep 8
 
 implementation   ; Functions:
 
@@ -15,3 +15,46 @@ entry:
         %tmp.1 = and int %a, -268435441         ; <int> [#uses=1]
         ret int %tmp.1
 }
+
+int %test3(int %a) {
+entry:
+        %tmp.2 = shr int %a, ubyte 8            ; <int> [#uses=1]
+        %tmp.3 = and int %tmp.2, 255            ; <int> [#uses=1]
+        ret int %tmp.3
+}
+
+uint %test4(uint %a) {
+entry:
+        %tmp.3 = shr uint %a, ubyte 8           ; <uint> [#uses=1]
+        %tmp.4 = and uint %tmp.3, 255           ; <uint> [#uses=1]
+        ret uint %tmp.4
+}
+
+int %test5(int %a) {
+entry:
+        %tmp.2 = shl int %a, ubyte 8            ; <int> [#uses=1]
+        %tmp.3 = and int %tmp.2, -8388608       ; <int> [#uses=1]
+        ret int %tmp.3
+}
+
+int %test6(int %a) {
+entry:
+        %tmp.1 = and int %a, 65280               ; <int> [#uses=1]
+        %tmp.2 = shr int %tmp.1, ubyte 8         ; <uint> [#uses=1]
+        ret int %tmp.2
+}
+
+uint %test7(uint %a) {
+entry:
+        %tmp.1 = and uint %a, 65280              ; <uint> [#uses=1]
+        %tmp.2 = shr uint %tmp.1, ubyte 8        ; <uint> [#uses=1]
+        ret uint %tmp.2
+}
+
+int %test8(int %a) {
+entry:
+        %tmp.1 = and int %a, 16711680            ; <int> [#uses=1]
+        %tmp.2 = shl int %tmp.1, ubyte 8         ; <int> [#uses=1]
+        ret int %tmp.2
+}
+