diff options
Diffstat (limited to 'llvm/lib/Analysis/InstructionSimplify.cpp')
-rw-r--r-- | llvm/lib/Analysis/InstructionSimplify.cpp | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp index 808674fc813..d42cad92e76 100644 --- a/llvm/lib/Analysis/InstructionSimplify.cpp +++ b/llvm/lib/Analysis/InstructionSimplify.cpp @@ -1500,16 +1500,14 @@ static Value *simplifyUnsignedRangeCheck(ICmpInst *ZeroICmp, } static Value *SimplifyAndOfICmps(ICmpInst *Op0, ICmpInst *Op1) { - Type *ITy = Op0->getType(); - ICmpInst::Predicate Pred0, Pred1; - ConstantInt *CI1, *CI2; - Value *V; - if (Value *X = simplifyUnsignedRangeCheck(Op0, Op1, /*IsAnd=*/true)) return X; // Look for this pattern: (icmp V, C0) & (icmp V, C1)). + Type *ITy = Op0->getType(); + ICmpInst::Predicate Pred0, Pred1; const APInt *C0, *C1; + Value *V; if (match(Op0, m_ICmp(Pred0, m_Value(V), m_APInt(C0))) && match(Op1, m_ICmp(Pred1, m_Specific(V), m_APInt(C1)))) { // Make a constant range that's the intersection of the two icmp ranges. @@ -1520,6 +1518,8 @@ static Value *SimplifyAndOfICmps(ICmpInst *Op0, ICmpInst *Op1) { return getFalse(ITy); } + // FIXME: Use m_APInt to allow vector splat matches. + ConstantInt *CI1, *CI2; if (!match(Op0, m_ICmp(Pred0, m_Add(m_Value(V), m_ConstantInt(CI1)), m_ConstantInt(CI2)))) return nullptr; @@ -1685,16 +1685,16 @@ Value *llvm::SimplifyAndInst(Value *Op0, Value *Op1, const DataLayout &DL, /// Simplify (or (icmp ...) (icmp ...)) to true when we can tell that the union /// contains all possible values. static Value *SimplifyOrOfICmps(ICmpInst *Op0, ICmpInst *Op1) { - ICmpInst::Predicate Pred0, Pred1; - ConstantInt *CI1, *CI2; - Value *V; - if (Value *X = simplifyUnsignedRangeCheck(Op0, Op1, /*IsAnd=*/false)) return X; + // FIXME: Use m_APInt to allow vector splat matches. + ICmpInst::Predicate Pred0, Pred1; + ConstantInt *CI1, *CI2; + Value *V; if (!match(Op0, m_ICmp(Pred0, m_Add(m_Value(V), m_ConstantInt(CI1)), m_ConstantInt(CI2)))) - return nullptr; + return nullptr; if (!match(Op1, m_ICmp(Pred1, m_Specific(V), m_Specific(CI1)))) return nullptr; |