Check for cannonicalization of shl X, 1 -> add X, X

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3670 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/shift.ll b/test/Transforms/InstCombine/shift.ll
index dde01f56586328a9be5dbd846a87edbcab82d7a6..c6a341f454f46bd8f2c9cef24ab499492ff6be22 100644 (file)
--- a/test/Transforms/InstCombine/shift.ll
+++ b/test/Transforms/InstCombine/shift.ll
@@ -33,3 +33,7 @@ uint "test5"(uint %A) {
        ret uint %B
 }
 
+uint %test6(uint %A) {
+       %B = shl uint %A, ubyte 1   ;; convert to an add instruction
+       ret uint %B
+}