[llvm] r246973 - add missing regression tests for De Morgan's Law transform in InstCombine

[Sanjay Patel via llvm-commits]

Author: spatel
Date: Mon Sep  7 14:00:38 2015
New Revision: 246973

URL: http://llvm.org/viewvc/llvm-project?rev=246973&view=rev
Log:
add missing regression tests for De Morgan's Law transform in InstCombine

Modified:
    llvm/trunk/test/Transforms/InstCombine/apint-or1.ll
    llvm/trunk/test/Transforms/InstCombine/apint-or2.ll

Modified: llvm/trunk/test/Transforms/InstCombine/apint-or1.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/apint-or1.ll?rev=246973&r1=246972&r2=246973&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/apint-or1.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/apint-or1.ll Mon Sep  7 14:00:38 2015
@@ -2,7 +2,7 @@
 ; This test is for Integer BitWidth <= 64 && BitWidth % 2 != 0.
 ;
 
-; RUN: opt < %s -instcombine -S | not grep or
+; RUN: opt < %s -instcombine -S | not grep " or "
 
 
 define i7 @test0(i7 %X) {
@@ -34,3 +34,12 @@ define i39 @test3(i39 %V, i39 %M) {
     %R = or i39 %B, %D
     ret i39 %R
 }
+
+define i43 @demorgan(i43 %A, i43 %B) {
+    ;; (~A | ~B) == (~(A & B)) - De Morgan's Law
+    %NotA = xor i43 %A, -1
+    %NotB = xor i43 %B, -1
+    %C1 = or i43 %NotA, %NotB
+    ret i43 %C1
+}
+

Modified: llvm/trunk/test/Transforms/InstCombine/apint-or2.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/apint-or2.ll?rev=246973&r1=246972&r2=246973&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/apint-or2.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/apint-or2.ll Mon Sep  7 14:00:38 2015
@@ -1,7 +1,7 @@
 ; This test makes sure that or instructions are properly eliminated.
 ; This test is for Integer BitWidth > 64 && BitWidth <= 1024.
 ;
-; RUN: opt < %s -instcombine -S | not grep or
+; RUN: opt < %s -instcombine -S | not grep " or "
 
 
 define i777 @test0(i777 %X) {
@@ -33,3 +33,12 @@ define i399 @test3(i399 %V, i399 %M) {
     %R = or i399 %B, %D
     ret i399 %R
 }
+
+define i129 @demorgan(i129 %A, i129 %B) {
+    ;; (~A | ~B) == (~(A & B)) - De Morgan's Law
+    %NotA = xor i129 %A, -1
+    %NotB = xor i129 %B, -1
+    %C1 = or i129 %NotA, %NotB
+    ret i129 %C1
+}
+