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[LAA] Default getInfo to not speculate symbolic strides. NFC

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Soon we won't be passing Strides to getInfo and then we'll have fewer
call sites to update.

llvm-svn: 272878
This commit is contained in:
Adam Nemet 2016-06-16 08:26:56 +00:00
parent 5ef896839b
commit dd71114f54
5 changed files with 6 additions and 7 deletions
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3
include/llvm/Analysis/LoopAccessAnalysis.h
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@ -699,7 +699,8 @@ public:
/// of symbolic strides, \p Strides provides the mapping (see
/// replaceSymbolicStrideSCEV). If there is no cached result available run
/// the analysis.
const LoopAccessInfo &getInfo(Loop *L, const ValueToValueMap &Strides);
const LoopAccessInfo &
getInfo(Loop *L, const ValueToValueMap &Strides = ValueToValueMap());
void releaseMemory() override {
// Invalidate the cache when the pass is freed.

4
lib/Analysis/LoopAccessAnalysis.cpp
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@ -1954,12 +1954,10 @@ LoopAccessAnalysis::getInfo(Loop *L, const ValueToValueMap &Strides) {
void LoopAccessAnalysis::print(raw_ostream &OS, const Module *M) const {
LoopAccessAnalysis &LAA = *const_cast<LoopAccessAnalysis *>(this);
ValueToValueMap NoSymbolicStrides;
for (Loop *TopLevelLoop : *LI)
for (Loop *L : depth_first(TopLevelLoop)) {
OS.indent(2) << L->getHeader()->getName() << ":\n";
auto &LAI = LAA.getInfo(L, NoSymbolicStrides);
auto &LAI = LAA.getInfo(L);
LAI.print(OS, 4);
}
}

2
lib/Transforms/Scalar/LoopDistribute.cpp
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@ -608,7 +608,7 @@ public:
return fail("multiple exit blocks");
// LAA will check that we only have a single exiting block.
LAI = &LAA->getInfo(L, ValueToValueMap());
LAI = &LAA->getInfo(L);
// Currently, we only distribute to isolate the part of the loop with
// dependence cycles to enable partial vectorization.

2
lib/Transforms/Scalar/LoopLoadElimination.cpp
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@ -552,7 +552,7 @@ public:
// Now walk the identified inner loops.
bool Changed = false;
for (Loop *L : Worklist) {
const LoopAccessInfo &LAI = LAA->getInfo(L, ValueToValueMap());
const LoopAccessInfo &LAI = LAA->getInfo(L);
// The actual work is performed by LoadEliminationForLoop.
LoadEliminationForLoop LEL(L, LI, LAI, DT);
Changed |= LEL.processLoop();

2
lib/Transforms/Utils/LoopVersioning.cpp
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@ -277,7 +277,7 @@ public:
// Now walk the identified inner loops.
bool Changed = false;
for (Loop *L : Worklist) {
const LoopAccessInfo &LAI = LAA->getInfo(L, ValueToValueMap());
const LoopAccessInfo &LAI = LAA->getInfo(L);
if (LAI.getNumRuntimePointerChecks() ||
!LAI.PSE.getUnionPredicate().isAlwaysTrue()) {
LoopVersioning LVer(LAI, L, LI, DT, SE);