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[ScopInfo] Introduce list of statements in Scop::StmtMap. NFC. 

Once statements are split, a BasicBlock will comprise of multiple
statements. To prepare for this change in future, we introduce a list
of statements in the statement map.

Contributed-by: Nandini Singhal <cs15mtech01004@iith.ac.in>

Differential Revision: https://reviews.llvm.org/D35301

llvm-svn: 308318
This commit is contained in:
Michael Kruse 2017-07-18 15:41:49 +00:00
parent fad872fc2d
commit 4dfa732750
2 changed files with 7 additions and 5 deletions
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5
polly/include/polly/ScopInfo.h
View File

@ -1670,8 +1670,9 @@ private:
/// delete the last object that creates isl objects with the context.
std::shared_ptr<isl_ctx> IslCtx;
/// A map from basic blocks to SCoP statements.
DenseMap<BasicBlock *, ScopStmt *> StmtMap;
/// A map from basic blocks to vector of SCoP statements. Currently this
/// vector comprises only of a single statement.
DenseMap<BasicBlock *, std::vector<ScopStmt *>> StmtMap;
/// A map from basic blocks to their domains.
DenseMap<BasicBlock *, isl::set> DomainMap;

7
polly/lib/Analysis/ScopInfo.cpp
View File

@ -4748,7 +4748,7 @@ void Scop::addScopStmt(BasicBlock *BB, Loop *SurroundingLoop,
assert(BB && "Unexpected nullptr!");
Stmts.emplace_back(*this, *BB, SurroundingLoop, Instructions);
auto *Stmt = &Stmts.back();
StmtMap[BB] = Stmt;
StmtMap[BB].push_back(Stmt);
}
void Scop::addScopStmt(Region *R, Loop *SurroundingLoop) {
@ -4756,7 +4756,7 @@ void Scop::addScopStmt(Region *R, Loop *SurroundingLoop) {
Stmts.emplace_back(*this, *R, SurroundingLoop);
auto *Stmt = &Stmts.back();
for (BasicBlock *BB : R->blocks())
StmtMap[BB] = Stmt;
StmtMap[BB].push_back(Stmt);
}
ScopStmt *Scop::addScopStmt(__isl_take isl_map *SourceRel,
@ -4908,7 +4908,8 @@ ScopStmt *Scop::getStmtFor(BasicBlock *BB) const {
auto StmtMapIt = StmtMap.find(BB);
if (StmtMapIt == StmtMap.end())
return nullptr;
return StmtMapIt->second;
assert(StmtMapIt->second.size() == 1);
return StmtMapIt->second.front();
}
ScopStmt *Scop::getStmtFor(RegionNode *RN) const {