X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2FTransforms%2FInstCombine%2Fsub-xor.ll;h=3a24074e72a779f77d3c18d1a1a4b8ab174ee63e;hb=4635abb06529379bf2641b26d07d29aed5ce59f4;hp=bfa9f408c6f893a50393bc3741b9ad0be0cf60bd;hpb=009da05e750b7bac7e1902fcdc85394de4ea63b3;p=oota-llvm.git

diff --git a/test/Transforms/InstCombine/sub-xor.ll b/test/Transforms/InstCombine/sub-xor.ll
index bfa9f408c6f..3a24074e72a 100644
--- a/test/Transforms/InstCombine/sub-xor.ll
+++ b/test/Transforms/InstCombine/sub-xor.ll
@@ -5,7 +5,7 @@ define i32 @test1(i32 %x) nounwind {
   %sub = sub i32 63, %and
   ret i32 %sub
 
-; CHECK: @test1
+; CHECK-LABEL: @test1(
 ; CHECK-NEXT: and i32 %x, 31
 ; CHECK-NEXT: xor i32 %and, 63
 ; CHECK-NEXT: ret
@@ -18,8 +18,30 @@ define i32 @test2(i32 %x) nounwind {
   %sub = sub i32 31, %count
   ret i32 %sub
 
-; CHECK: @test2
+; CHECK-LABEL: @test2(
 ; CHECK-NEXT: ctlz
 ; CHECK-NEXT: xor i32 %count, 31
 ; CHECK-NEXT: ret
 }
+
+define i32 @test3(i32 %x) nounwind {
+  %and = and i32 %x, 31
+  %sub = xor i32 31, %and
+  %add = add i32 %sub, 42
+  ret i32 %add
+
+; CHECK-LABEL: @test3(
+; CHECK-NEXT: and i32 %x, 31
+; CHECK-NEXT: sub nsw i32 73, %and
+; CHECK-NEXT: ret
+}
+
+define i32 @test4(i32 %x) nounwind {
+  %sub = xor i32 %x, 2147483648
+  %add = add i32 %sub, 42
+  ret i32 %add
+
+; CHECK-LABEL: @test4(
+; CHECK-NEXT: add i32 %x, -2147483606
+; CHECK-NEXT: ret
+}