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ScopDetection: Make enum function-local

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The 'Color' enum is only used for irreducible control flow detection. Johannes
already moved this enum in r270054 from ScopDetection.h to ScopDetection.cpp to
limit its scope to a single cpp file. We now move it into the only function
where this enum is needed to make clear that it is only needed locally in this
single function.

Thanks to Johannes for pointing out this cleanup opportunity.

llvm-svn: 272462
This commit is contained in:
Tobias Grosser 2016-06-11 09:00:37 +00:00
parent b05edfc10d
commit ef6ae7030d
1 changed files with 7 additions and 7 deletions
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2
polly/lib/Analysis/ScopDetection.cpp
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@ -1380,6 +1380,7 @@ void ScopDetection::emitMissedRemarks(const Function &F) {
}
}
bool ScopDetection::isReducibleRegion(Region &R, DebugLoc &DbgLoc) const {
/// @brief Enum for coloring BBs in Region.
///
/// WHITE - Unvisited BB in DFS walk.
@ -1387,7 +1388,6 @@ void ScopDetection::emitMissedRemarks(const Function &F) {
/// BLACK - Visited and completely processed BB.
enum Color { WHITE, GREY, BLACK };
bool ScopDetection::isReducibleRegion(Region &R, DebugLoc &DbgLoc) const {
BasicBlock *REntry = R.getEntry();
BasicBlock *RExit = R.getExit();
// Map to match the color of a BasicBlock during the DFS walk.