new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21774 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/shift.ll b/test/Transforms/InstCombine/shift.ll
index fd1ac0e8309e636760574430f87b51946f84d758..0834efcaf1a4d09e7551961655d1df6d5a8c2cd7 100644 (file)
--- a/test/Transforms/InstCombine/shift.ll
+++ b/test/Transforms/InstCombine/shift.ll
@@ -164,3 +164,11 @@ sbyte %test23(int %A) {
        %D = cast int %C to sbyte
        ret sbyte %D
 }
+
+sbyte %test24(sbyte %X) {
+        %Y = and sbyte %X, -5 ; ~4
+        %Z = shl sbyte %Y, ubyte 5
+        %Q = shr sbyte %Z, ubyte 5
+        ret sbyte %Q
+}
+