ScopDetect: Make foreachs 'const auto &'
We mostly iterate over read-only values. Following a suggestion by Duncan P.N
Exons Smith, we use the construct 'const auto &' for this.
llvm-svn: 202651
diff --git a/polly/lib/Analysis/ScopDetection.cpp b/polly/lib/Analysis/ScopDetection.cpp
index 454bb99..a5cfc2c 100644
--- a/polly/lib/Analysis/ScopDetection.cpp
+++ b/polly/lib/Analysis/ScopDetection.cpp
@@ -332,7 +332,7 @@
std::vector<Value *> Pointers;
- for (auto I : AS)
+ for (const auto &I : AS)
Pointers.push_back(I.getValue());
std::sort(Pointers.begin(), Pointers.end());
@@ -607,7 +607,7 @@
static unsigned eraseAllChildren(std::set<const Region *> &Regs,
const Region *R) {
unsigned Count = 0;
- for (auto SubRegion : *R) {
+ for (const auto &SubRegion : *R) {
if (Regs.find(SubRegion) != Regs.end()) {
++Count;
Regs.erase(SubRegion);
@@ -633,7 +633,7 @@
InvalidRegions[&R] = LastFailure;
- for (auto SubRegion : R)
+ for (const auto &SubRegion : R)
findScops(*SubRegion);
// Try to expand regions.
@@ -644,10 +644,10 @@
std::vector<Region *> ToExpand;
- for (auto SubRegion : R)
+ for (const auto &SubRegion : R)
ToExpand.push_back(SubRegion);
- for (auto CurrentRegion : ToExpand) {
+ for (const auto &CurrentRegion : ToExpand) {
// Skip invalid regions. Regions may become invalid, if they are element of
// an already expanded region.
if (ValidRegions.find(CurrentRegion) == ValidRegions.end())
@@ -800,7 +800,7 @@
}
void ScopDetection::printLocations(llvm::Function &F) {
- for (auto R : *this) {
+ for (const auto &R : *this) {
unsigned LineEntry, LineExit;
std::string FileName;
@@ -846,7 +846,7 @@
if (!VerifyScops)
return;
- for (auto R : ValidRegions)
+ for (const auto &R : ValidRegions)
verifyRegion(*R);
}
@@ -862,7 +862,7 @@
}
void ScopDetection::print(raw_ostream &OS, const Module *) const {
- for (auto R : ValidRegions)
+ for (const auto &R : ValidRegions)
OS << "Valid Region for Scop: " << R->getNameStr() << '\n';
OS << "\n";