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More dead code removal (using -Wunreachable-code)

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2012-01-20 21:51:11 +00:00
parent 0041d4d447
commit 4d6ccb5f68
110 changed files with 179 additions and 442 deletions
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30
lib/Analysis/ScalarEvolution.cpp
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@ -259,11 +259,9 @@ Type *SCEV::getType() const {
return cast<SCEVUnknown>(this)->getType();
case scCouldNotCompute:
llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
return 0;
default: break;
default:
llvm_unreachable("Unknown SCEV kind!");
}
llvm_unreachable("Unknown SCEV kind!");
return 0;
}
bool SCEV::isZero() const {
@ -611,11 +609,8 @@ namespace {
}
default:
break;
llvm_unreachable("Unknown SCEV kind!");
}
llvm_unreachable("Unknown SCEV kind!");
return 0;
}
};
}
@ -5319,7 +5314,6 @@ const SCEV *ScalarEvolution::computeSCEVAtScope(const SCEV *V, const Loop *L) {
}
llvm_unreachable("Unknown SCEV type!");
return 0;
}
/// getSCEVAtScope - This is a convenience function which does
@ -5950,7 +5944,6 @@ ScalarEvolution::isKnownPredicateWithRanges(ICmpInst::Predicate Pred,
switch (Pred) {
default:
llvm_unreachable("Unexpected ICmpInst::Predicate value!");
break;
case ICmpInst::ICMP_SGT:
Pred = ICmpInst::ICMP_SLT;
std::swap(LHS, RHS);
@ -6801,11 +6794,8 @@ ScalarEvolution::computeLoopDisposition(const SCEV *S, const Loop *L) {
return LoopInvariant;
case scCouldNotCompute:
llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
return LoopVariant;
default: break;
default: llvm_unreachable("Unknown SCEV kind!");
}
llvm_unreachable("Unknown SCEV kind!");
return LoopVariant;
}
bool ScalarEvolution::isLoopInvariant(const SCEV *S, const Loop *L) {
@ -6887,11 +6877,9 @@ ScalarEvolution::computeBlockDisposition(const SCEV *S, const BasicBlock *BB) {
return ProperlyDominatesBlock;
case scCouldNotCompute:
llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
return DoesNotDominateBlock;
default: break;
default:
llvm_unreachable("Unknown SCEV kind!");
}
llvm_unreachable("Unknown SCEV kind!");
return DoesNotDominateBlock;
}
bool ScalarEvolution::dominates(const SCEV *S, const BasicBlock *BB) {
@ -6937,11 +6925,9 @@ bool ScalarEvolution::hasOperand(const SCEV *S, const SCEV *Op) const {
return false;
case scCouldNotCompute:
llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
return false;
default: break;
default:
llvm_unreachable("Unknown SCEV kind!");
}
llvm_unreachable("Unknown SCEV kind!");
return false;
}
void ScalarEvolution::forgetMemoizedResults(const SCEV *S) {