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-rw-r--r--lib/CodeGen/Spiller.cpp26
1 files changed, 17 insertions, 9 deletions
diff --git a/lib/CodeGen/Spiller.cpp b/lib/CodeGen/Spiller.cpp
index 7ba4403171..63c55549a3 100644
--- a/lib/CodeGen/Spiller.cpp
+++ b/lib/CodeGen/Spiller.cpp
@@ -46,7 +46,6 @@ namespace {
/// Utility class for spillers.
class SpillerBase : public Spiller {
protected:
-
MachineFunction *mf;
LiveIntervals *lis;
MachineFrameInfo *mfi;
@@ -160,9 +159,11 @@ protected:
return added;
}
-
};
+} // end anonymous namespace
+
+namespace {
/// Spills any live range using the spill-everywhere method with no attempt at
/// folding.
@@ -178,9 +179,12 @@ public:
// Ignore spillIs - we don't use it.
return trivialSpillEverywhere(li);
}
-
};
+} // end anonymous namespace
+
+namespace {
+
/// Falls back on LiveIntervals::addIntervalsForSpills.
class StandardSpiller : public Spiller {
protected:
@@ -198,9 +202,12 @@ public:
SlotIndex*) {
return lis->addIntervalsForSpills(*li, spillIs, loopInfo, *vrm);
}
-
};
+} // end anonymous namespace
+
+namespace {
+
/// When a call to spill is placed this spiller will first try to break the
/// interval up into its component values (one new interval per value).
/// If this fails, or if a call is placed to spill a previously split interval
@@ -513,15 +520,16 @@ private:
};
-}
+} // end anonymous namespace
+
llvm::Spiller* llvm::createSpiller(MachineFunction *mf, LiveIntervals *lis,
const MachineLoopInfo *loopInfo,
VirtRegMap *vrm) {
switch (spillerOpt) {
- case trivial: return new TrivialSpiller(mf, lis, vrm); break;
- case standard: return new StandardSpiller(lis, loopInfo, vrm); break;
- case splitting: return new SplittingSpiller(mf, lis, loopInfo, vrm); break;
- default: llvm_unreachable("Unreachable!"); break;
+ default: assert(0 && "unknown spiller");
+ case trivial: return new TrivialSpiller(mf, lis, vrm);
+ case standard: return new StandardSpiller(lis, loopInfo, vrm);
+ case splitting: return new SplittingSpiller(mf, lis, loopInfo, vrm);
}
}