Move "A | ~(A & ?) -> -1" from InstCombine to InstructionSimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126082 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/InstructionSimplify.cpp b/lib/Analysis/InstructionSimplify.cpp
index a2f9862..982dacb 100644
--- a/lib/Analysis/InstructionSimplify.cpp
+++ b/lib/Analysis/InstructionSimplify.cpp
@@ -1161,6 +1161,16 @@
(A == Op0 || B == Op0))
return Op0;
+ // ~(A & ?) | A = -1
+ if (match(Op0, m_Not(m_And(m_Value(A), m_Value(B)))) &&
+ (A == Op1 || B == Op1))
+ return Constant::getAllOnesValue(Op1->getType());
+
+ // A | ~(A & ?) = -1
+ if (match(Op1, m_Not(m_And(m_Value(A), m_Value(B)))) &&
+ (A == Op0 || B == Op0))
+ return Constant::getAllOnesValue(Op0->getType());
+
// Try some generic simplifications for associative operations.
if (Value *V = SimplifyAssociativeBinOp(Instruction::Or, Op0, Op1, TD, DT,
MaxRecurse))