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-rw-r--r--test/Transforms/InstCombine/xor.ll6
1 files changed, 6 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/xor.ll b/test/Transforms/InstCombine/xor.ll
index 6516a9f0a2..172da6062f 100644
--- a/test/Transforms/InstCombine/xor.ll
+++ b/test/Transforms/InstCombine/xor.ll
@@ -116,3 +116,9 @@ uint %test17(uint %A) { ; ~(c-X) == X-(c-1) == X+(-c+1)
%C = xor uint %B, 4294967295
ret uint %C
}
+
+uint %test18(uint %A) { ; C - ~X == X + (1+C)
+ %B = xor uint %A, 4294967295; -~X == 0 - ~X == X+1
+ %C = sub uint 123, %B
+ ret uint %C
+}