[llvm-commits] CVS: llvm/lib/Transforms/Scalar/InstructionCombining.cpp

[Chris Lattner]

Changes in directory llvm/lib/Transforms/Scalar:

InstructionCombining.cpp updated: 1.110 -> 1.111

---
Log message:

Simplify code


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Diffs of the changes:

Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.110 llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.111
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.110	Tue Aug 12 14:11:07 2003
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp	Tue Aug 12 14:17:27 2003
@@ -241,7 +241,8 @@
 // dyn_castMaskingAnd - If this value is an And instruction masking a value with
 // a constant, return the constant being anded with.
 //
-static inline Constant *dyn_castMaskingAnd(Value *V) {
+template<class ValueType>
+static inline Constant *dyn_castMaskingAnd(ValueType *V) {
   if (Instruction *I = dyn_cast<Instruction>(V))
     if (I->getOpcode() == Instruction::And)
       return dyn_cast<Constant>(I->getOperand(1));
@@ -613,16 +614,12 @@
   }
 
   // (A & C1)|(A & C2) == A & (C1|C2)
-  if (BinaryOperator *BO0 = dyn_cast<BinaryOperator>(Op0))
-    if (BinaryOperator *BO1 = dyn_cast<BinaryOperator>(Op1))
-      if (BO0->getOperand(0) == BO1->getOperand(0) &&
-          BO0->getOpcode() == Instruction::And &&
-          BO1->getOpcode() == Instruction::And)
-        if (ConstantIntegral *C0 =
-            dyn_cast<ConstantIntegral>(BO0->getOperand(1)))
-          if (ConstantIntegral *C1 =
-              dyn_cast<ConstantIntegral>(BO1->getOperand(1)))
-            return BinaryOperator::create(Instruction::And, BO0->getOperand(0),
+  if (Instruction *LHS = dyn_cast<BinaryOperator>(Op0))
+    if (Instruction *RHS = dyn_cast<BinaryOperator>(Op1))
+      if (LHS->getOperand(0) == RHS->getOperand(0))
+        if (Constant *C0 = dyn_castMaskingAnd(LHS))
+          if (Constant *C1 = dyn_castMaskingAnd(RHS))
+            return BinaryOperator::create(Instruction::And, LHS->getOperand(0),
                                           *C0 | *C1);            
 
   Value *Op0NotVal = dyn_castNotVal(Op0);