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Use new m_SelectCst template to eliminate macros.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59392 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-11-16 04:33:38 +00:00
parent 67abc10616
commit 321e6a6e82
1 changed files with 5 additions and 9 deletions
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14
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -4212,23 +4212,19 @@ static Instruction *MatchSelectFromAndOr(Value *A, Value *B,
Value *C, Value *D) {
// If A is not a select of -1/0, this cannot match.
Value *Cond = 0, *Cond2 = 0;
if (!match(A, m_Select(m_Value(Cond), m_ConstantInt(-1), m_ConstantInt(0))))
if (!match(A, m_SelectCst(m_Value(Cond), -1, 0)))
return 0;
#define SELECT_MATCH(Val, I1, I2) \
m_Select(m_Value(Val), m_ConstantInt(I1), m_ConstantInt(I2))
// ((cond?-1:0)&C) | (B&(cond?0:-1)) -> cond ? C : B.
if (match(D, SELECT_MATCH(Cond2, 0, -1)) && Cond2 == Cond)
if (match(D, m_SelectCst(m_Value(Cond2), 0, -1)) && Cond2 == Cond)
return SelectInst::Create(Cond, C, B);
if (match(D, m_Not(SELECT_MATCH(Cond2, -1, 0))) && Cond2 == Cond)
if (match(D, m_Not(m_SelectCst(m_Value(Cond2), -1, 0))) && Cond2 == Cond)
return SelectInst::Create(Cond, C, B);
// ((cond?-1:0)&C) | ((cond?0:-1)&D) -> cond ? C : D.
if (match(B, SELECT_MATCH(Cond2, 0, -1)) && Cond2 == Cond)
if (match(B, m_SelectCst(m_Value(Cond2), 0, -1)) && Cond2 == Cond)
return SelectInst::Create(Cond, C, D);
if (match(B, m_Not(SELECT_MATCH(Cond2, -1, 0))) && Cond2 == Cond)
if (match(B, m_Not(m_SelectCst(m_Value(Cond2), -1, 0))) && Cond2 == Cond)
return SelectInst::Create(Cond, C, D);
#undef SELECT_MATCH
return 0;
}