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[TableGen] Remove local SmallSet from TypeSetByHwMode::insert. 

This keeps track of which modes are in VVT so we can find out
if a mode is missing later. But we can just ask VVT whether it
has a particular mode.
This commit is contained in:
Craig Topper 2021-04-17 10:47:04 -07:00
parent 21bef4e11e
commit a5e579cc2b
1 changed files with 1 additions and 3 deletions
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4
llvm/utils/TableGen/CodeGenDAGPatterns.cpp
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@ -111,10 +111,8 @@ bool TypeSetByHwMode::insert(const ValueTypeByHwMode &VVT) {
bool ContainsDefault = false;
MVT DT = MVT::Other;
SmallSet<unsigned, 4> Modes;
for (const auto &P : VVT) {
unsigned M = P.first;
Modes.insert(M);
// Make sure there exists a set for each specific mode from VVT.
Changed |= getOrCreate(M).insert(P.second).second;
// Cache VVT's default mode.
@ -128,7 +126,7 @@ bool TypeSetByHwMode::insert(const ValueTypeByHwMode &VVT) {
// modes in "this" that do not exist in VVT.
if (ContainsDefault)
for (auto &I : *this)
if (!Modes.count(I.first))
if (!VVT.hasMode(I.first))
Changed |= I.second.insert(DT).second;
return Changed;