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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 0cbd1320d3..6516a9f0a2 100644
--- a/test/Transforms/InstCombine/xor.ll
+++ b/test/Transforms/InstCombine/xor.ll
@@ -110,3 +110,9 @@ uint %test16(uint %A) { ; ~(X+c) == (-c-1)-X
%C = xor uint %B, 4294967295
ret uint %C
}
+
+uint %test17(uint %A) { ; ~(c-X) == X-(c-1) == X+(-c+1)
+ %B = sub uint 123, %A
+ %C = xor uint %B, 4294967295
+ ret uint %C
+}