Add two new patterns that instcombine should or does handle
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2563 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/InstCombine/sub.ll b/test/Transforms/InstCombine/sub.ll
index fbec5e8..bbdf0b3 100644
--- a/test/Transforms/InstCombine/sub.ll
+++ b/test/Transforms/InstCombine/sub.ll
@@ -23,3 +23,15 @@
%C = sub int 0, %B ; C = -B = A
ret int %C
}
+
+int "test4"(int %A, int %x) {
+ %B = sub int 0, %A
+ %C = sub int %x, %B
+ ret int %C
+}
+
+int "test5"(int %A, int %B, int %C) {
+ %D = sub int %B, %C
+ %E = sub int %A, %D
+ ret int %E
+}