[InstCombine] use AddOne helper to reduce code; NFC
llvm-svn: 315709
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
index 75cc683..92452d7 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
@@ -960,13 +960,9 @@
return NV;
Value *X;
- Type *Ty = Add.getType();
- if (match(Op0, m_ZExt(m_Value(X))) &&
- X->getType()->getScalarSizeInBits() == 1) {
+ if (match(Op0, m_ZExt(m_Value(X))) && X->getType()->getScalarSizeInBits() == 1)
// zext(bool) + C -> bool ? C + 1 : C
- Constant *One = ConstantInt::get(Ty, 1);
- return SelectInst::Create(X, ConstantExpr::getAdd(Op1C, One), Op1);
- }
+ return SelectInst::Create(X, AddOne(Op1C), Op1);
const APInt *C;
if (!match(Op1, m_APInt(C)))
@@ -985,6 +981,7 @@
// Is this add the last step in a convoluted sext?
// add(zext(xor i16 X, -32768), -32768) --> sext X
+ Type *Ty = Add.getType();
const APInt *C2;
if (match(Op0, m_ZExt(m_Xor(m_Value(X), m_APInt(C2)))) &&
C2->isMinSignedValue() && C2->sext(Ty->getScalarSizeInBits()) == *C)