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Simplify SCEVAffinator code [NFC] 

llvm-svn: 266051
This commit is contained in:
Johannes Doerfert 2016-04-12 09:33:47 +00:00
parent ba45680758
commit 65f86cd8b0
1 changed files with 8 additions and 15 deletions
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23
polly/lib/Support/SCEVAffinator.cpp
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@ -51,6 +51,13 @@ static bool isToComplex(isl_pw_aff *PWA) {
return true;
}
/// @brief Return the flag describing the possible wrapping of @p Expr.
static SCEV::NoWrapFlags getNoWrapFlags(const SCEV *Expr) {
if (auto *NAry = dyn_cast<SCEVNAryExpr>(Expr))
return NAry->getNoWrapFlags();
return SCEV::NoWrapMask;
}
SCEVAffinator::SCEVAffinator(Scop *S, LoopInfo &LI)
: S(S), Ctx(S->getIslCtx()), R(S->getRegion()), SE(*S->getSE()), LI(LI),
TD(R.getEntry()->getParent()->getParent()->getDataLayout()) {}
@ -112,21 +119,7 @@ __isl_give isl_set *SCEVAffinator::getWrappingContext() const {
for (const auto &CachedPair : CachedExpressions) {
const SCEV *Expr = CachedPair.first.first;
SCEV::NoWrapFlags Flags;
switch (Expr->getSCEVType()) {
case scAddExpr:
Flags = cast<SCEVAddExpr>(Expr)->getNoWrapFlags();
break;
case scMulExpr:
Flags = cast<SCEVMulExpr>(Expr)->getNoWrapFlags();
break;
case scAddRecExpr:
Flags = cast<SCEVAddRecExpr>(Expr)->getNoWrapFlags();
break;
default:
continue;
}
SCEV::NoWrapFlags Flags = getNoWrapFlags(Expr);
isl_pw_aff *PWA = CachedPair.second;
BasicBlock *BB = CachedPair.first.second;