Add new testcase for arithmetic shr of -1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4069 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/shift.ll b/test/Transforms/InstCombine/shift.ll
index c6a341f454f46bd8f2c9cef24ab499492ff6be22..5f7d2a59c44fec2b46bee88ea701eb9eb787a40f 100644 (file)
--- a/test/Transforms/InstCombine/shift.ll
+++ b/test/Transforms/InstCombine/shift.ll
@@ -37,3 +37,8 @@ uint %test6(uint %A) {
        %B = shl uint %A, ubyte 1   ;; convert to an add instruction
        ret uint %B
 }
+
+int %test7(ubyte %A) {
+       %B = shr int -1, ubyte %A   ;; Always equal to -1
+       ret int %B
+}