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-rw-r--r--llvm/test/Transforms/InstCombine/sub-xor.ll12
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/sub-xor.ll b/llvm/test/Transforms/InstCombine/sub-xor.ll
new file mode 100644
index 00000000000..41e01fbdae8
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/sub-xor.ll
@@ -0,0 +1,12 @@
+; RUN: opt -instcombine -S < %s | FileCheck %s
+
+define i32 @test1(i32 %x) nounwind {
+ %and = and i32 %x, 31
+ %sub = sub i32 63, %and
+ ret i32 %sub
+
+; CHECK: @test1
+; CHECK-NEXT: and i32 %x, 31
+; CHECK-NEXT: xor i32 %and, 63
+; CHECK-NEXT: ret
+}
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