Add new testcases

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5591 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/test/Transforms/InstCombine/sub.ll b/test/Transforms/InstCombine/sub.ll
index 8b164cb51e..0dd2b7d930 100644
--- a/test/Transforms/InstCombine/sub.ll
+++ b/test/Transforms/InstCombine/sub.ll
@@ -47,3 +47,15 @@ int %test7(int %A) {
 	ret int %B
 }
 
+int %test8(int %A) {
+        %B = mul int 9, %A
+        %C = sub int %B, %A      ; C = 9*A-A == A*8 == A << 3
+        ret int %C
+}
+
+int %test9(int %A) {
+        %B = mul int 3, %A
+        %C = sub int %A, %B      ; C = A-3*A == A*-2
+        ret int %C
+}
+