1 files changed, 69 insertions, 35 deletions
diff --git a/test/Transforms/InstCombine/not.ll b/test/Transforms/InstCombine/not.ll
index edb402a125ac..d0c242f65558 100644
--- a/test/Transforms/InstCombine/not.ll
+++ b/test/Transforms/InstCombine/not.ll
@@ -1,61 +1,95 @@
-; This test makes sure that these instructions are properly eliminated.
-;
-
 ; RUN: opt < %s -instcombine -S | FileCheck %s
-; CHECK-NOT: xor
 
 define i32 @test1(i32 %A) {
-        %B = xor i32 %A, -1
-        %C = xor i32 %B, -1
-        ret i32 %C
+; CHECK-LABEL: @test1(
+; CHECK-NEXT:    ret i32 %A
+;
+  %B = xor i32 %A, -1
+  %C = xor i32 %B, -1
+  ret i32 %C
 }
 
-define i1 @test2(i32 %A, i32 %B) {
-        ; Can change into setge
-        %cond = icmp sle i32 %A, %B
-        %Ret = xor i1 %cond, true
-        ret i1 %Ret
+define i1 @invert_icmp(i32 %A, i32 %B) {
+; CHECK-LABEL: @invert_icmp(
+; CHECK-NEXT:    [[NOT:%.*]] = icmp sgt i32 %A, %B
+; CHECK-NEXT:    ret i1 [[NOT]]
+;
+  %cmp = icmp sle i32 %A, %B
+  %not = xor i1 %cmp, true
+  ret i1 %not
+}
+
+; PR1570
+
+define i1 @invert_fcmp(float %X, float %Y) {
+; CHECK-LABEL: @invert_fcmp(
+; CHECK-NEXT:    [[NOT:%.*]] = fcmp uge float %X, %Y
+; CHECK-NEXT:    ret i1 [[NOT]]
+;
+  %cmp = fcmp olt float %X, %Y
+  %not = xor i1 %cmp, true
+  ret i1 %not
 }
 
 ; Test that De Morgan's law can be instcombined.
 define i32 @test3(i32 %A, i32 %B) {
-        %a = xor i32 %A, -1
-        %b = xor i32 %B, -1
-        %c = and i32 %a, %b
-        %d = xor i32 %c, -1
-        ret i32 %d
+; CHECK-LABEL: @test3(
+; CHECK-NEXT:    [[C_DEMORGAN:%.*]] = or i32 %A, %B
+; CHECK-NEXT:    ret i32 [[C_DEMORGAN]]
+;
+  %a = xor i32 %A, -1
+  %b = xor i32 %B, -1
+  %c = and i32 %a, %b
+  %d = xor i32 %c, -1
+  ret i32 %d
 }
 
 ; Test that De Morgan's law can work with constants.
 define i32 @test4(i32 %A, i32 %B) {
-        %a = xor i32 %A, -1
-        %c = and i32 %a, 5
-        %d = xor i32 %c, -1
-        ret i32 %d
+; CHECK-LABEL: @test4(
+; CHECK-NEXT:    [[D1:%.*]] = or i32 %A, -6
+; CHECK-NEXT:    ret i32 [[D1]]
+;
+  %a = xor i32 %A, -1
+  %c = and i32 %a, 5
+  %d = xor i32 %c, -1
+  ret i32 %d
 }
 
 ; Test the mirror of De Morgan's law.
 define i32 @test5(i32 %A, i32 %B) {
-        %a = xor i32 %A, -1
-        %b = xor i32 %B, -1
-        %c = or i32 %a, %b
-        %d = xor i32 %c, -1
-        ret i32 %d
+; CHECK-LABEL: @test5(
+; CHECK-NEXT:    [[C_DEMORGAN:%.*]] = and i32 %A, %B
+; CHECK-NEXT:    ret i32 [[C_DEMORGAN]]
+;
+  %a = xor i32 %A, -1
+  %b = xor i32 %B, -1
+  %c = or i32 %a, %b
+  %d = xor i32 %c, -1
+  ret i32 %d
 }
 
 ; PR2298
 define zeroext i8 @test6(i32 %a, i32 %b) {
-entry:
-	%tmp1not = xor i32 %a, -1
-	%tmp2not = xor i32 %b, -1
-	%tmp3 = icmp slt i32 %tmp1not, %tmp2not
-	%retval67 = zext i1 %tmp3 to i8
-	ret i8 %retval67
+; CHECK-LABEL: @test6(
+; CHECK-NEXT:    [[TMP3:%.*]] = icmp slt i32 %b, %a
+; CHECK-NEXT:    [[RETVAL67:%.*]] = zext i1 [[TMP3]] to i8
+; CHECK-NEXT:    ret i8 [[RETVAL67]]
+;
+  %tmp1not = xor i32 %a, -1
+  %tmp2not = xor i32 %b, -1
+  %tmp3 = icmp slt i32 %tmp1not, %tmp2not
+  %retval67 = zext i1 %tmp3 to i8
+  ret i8 %retval67
 }
 
 define <2 x i1> @test7(<2 x i32> %A, <2 x i32> %B) {
-        %cond = icmp sle <2 x i32> %A, %B
-        %Ret = xor <2 x i1> %cond, <i1 true, i1 true>
-        ret <2 x i1> %Ret
+; CHECK-LABEL: @test7(
+; CHECK-NEXT:    [[RET:%.*]] = icmp sgt <2 x i32> %A, %B
+; CHECK-NEXT:    ret <2 x i1> [[RET]]
+;
+  %cond = icmp sle <2 x i32> %A, %B
+  %Ret = xor <2 x i1> %cond, <i1 true, i1 true>
+  ret <2 x i1> %Ret
 }