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SCEV: Cast switched values to make -Wswitch more useful.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201170 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2014-02-11 19:02:55 +00:00
parent 6a089db385
commit 193c0914e7
1 changed files with 16 additions and 16 deletions
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32
lib/Analysis/ScalarEvolution.cpp
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@ -135,7 +135,7 @@ void SCEV::dump() const {
#endif
void SCEV::print(raw_ostream &OS) const {
switch (getSCEVType()) {
switch (static_cast<SCEVTypes>(getSCEVType())) {
case scConstant:
cast<SCEVConstant>(this)->getValue()->printAsOperand(OS, false);
return;
@ -240,13 +240,12 @@ void SCEV::print(raw_ostream &OS) const {
case scCouldNotCompute:
OS << "***COULDNOTCOMPUTE***";
return;
default: break;
}
llvm_unreachable("Unknown SCEV kind!");
}
Type *SCEV::getType() const {
switch (getSCEVType()) {
switch (static_cast<SCEVTypes>(getSCEVType())) {
case scConstant:
return cast<SCEVConstant>(this)->getType();
case scTruncate:
@ -266,9 +265,8 @@ Type *SCEV::getType() const {
return cast<SCEVUnknown>(this)->getType();
case scCouldNotCompute:
llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
default:
llvm_unreachable("Unknown SCEV kind!");
}
llvm_unreachable("Unknown SCEV kind!");
}
bool SCEV::isZero() const {
@ -481,7 +479,7 @@ namespace {
// Aside from the getSCEVType() ordering, the particular ordering
// isn't very important except that it's beneficial to be consistent,
// so that (a + b) and (b + a) don't end up as different expressions.
switch (LType) {
switch (static_cast<SCEVTypes>(LType)) {
case scUnknown: {
const SCEVUnknown *LU = cast<SCEVUnknown>(LHS);
const SCEVUnknown *RU = cast<SCEVUnknown>(RHS);
@ -618,9 +616,10 @@ namespace {
return compare(LC->getOperand(), RC->getOperand());
}
default:
llvm_unreachable("Unknown SCEV kind!");
case scCouldNotCompute:
llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
}
llvm_unreachable("Unknown SCEV kind!");
}
};
}
@ -2784,7 +2783,7 @@ namespace {
bool FindOne;
FindInvalidSCEVUnknown() { FindOne = false; }
bool follow(const SCEV *S) {
switch (S->getSCEVType()) {
switch (static_cast<SCEVTypes>(S->getSCEVType())) {
case scConstant:
return false;
case scUnknown:
@ -5209,8 +5208,7 @@ const SCEV *ScalarEvolution::getSCEVAtScope(const SCEV *V, const Loop *L) {
/// SCEVConstant, because SCEVConstant is restricted to ConstantInt.
/// Returns NULL if the SCEV isn't representable as a Constant.
static Constant *BuildConstantFromSCEV(const SCEV *V) {
switch (V->getSCEVType()) {
default: // TODO: smax, umax.
switch (static_cast<SCEVTypes>(V->getSCEVType())) {
case scCouldNotCompute:
case scAddRecExpr:
break;
@ -5297,6 +5295,9 @@ static Constant *BuildConstantFromSCEV(const SCEV *V) {
return ConstantExpr::getUDiv(LHS, RHS);
break;
}
case scSMaxExpr:
case scUMaxExpr:
break; // TODO: smax, umax.
}
return 0;
}
@ -7534,7 +7535,7 @@ ScalarEvolution::getLoopDisposition(const SCEV *S, const Loop *L) {
ScalarEvolution::LoopDisposition
ScalarEvolution::computeLoopDisposition(const SCEV *S, const Loop *L) {
switch (S->getSCEVType()) {
switch (static_cast<SCEVTypes>(S->getSCEVType())) {
case scConstant:
return LoopInvariant;
case scTruncate:
@ -7607,8 +7608,8 @@ ScalarEvolution::computeLoopDisposition(const SCEV *S, const Loop *L) {
return LoopInvariant;
case scCouldNotCompute:
llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
default: llvm_unreachable("Unknown SCEV kind!");
}
llvm_unreachable("Unknown SCEV kind!");
}
bool ScalarEvolution::isLoopInvariant(const SCEV *S, const Loop *L) {
@ -7640,7 +7641,7 @@ ScalarEvolution::getBlockDisposition(const SCEV *S, const BasicBlock *BB) {
ScalarEvolution::BlockDisposition
ScalarEvolution::computeBlockDisposition(const SCEV *S, const BasicBlock *BB) {
switch (S->getSCEVType()) {
switch (static_cast<SCEVTypes>(S->getSCEVType())) {
case scConstant:
return ProperlyDominatesBlock;
case scTruncate:
@ -7697,9 +7698,8 @@ ScalarEvolution::computeBlockDisposition(const SCEV *S, const BasicBlock *BB) {
return ProperlyDominatesBlock;
case scCouldNotCompute:
llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
default:
llvm_unreachable("Unknown SCEV kind!");
}
llvm_unreachable("Unknown SCEV kind!");
}
bool ScalarEvolution::dominates(const SCEV *S, const BasicBlock *BB) {