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Add statistics to the loop extractor. The loop extractor has successfully
extracted all 63 loops for Olden/bh without crashing and without miscompiling the program!!! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12491 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -22,9 +22,12 @@
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#include "llvm/Analysis/LoopInfo.h"
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#include "llvm/Transforms/Scalar.h"
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#include "llvm/Transforms/Utils/FunctionUtils.h"
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#include "Support/Statistic.h"
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using namespace llvm;
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namespace {
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Statistic<> NumExtracted("loop-extract", "Number of loops extracted");
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// FIXME: This is not a function pass, but the PassManager doesn't allow
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// Module passes to require FunctionPasses, so we can't get loop info if we're
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// not a function pass.
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@ -72,6 +75,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
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if (NumLoops == 0) return Changed;
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--NumLoops;
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Changed |= ExtractLoop(DS, *i) != 0;
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++NumExtracted;
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}
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} else {
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// Otherwise there is exactly one top-level loop. If this function is more
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@ -99,6 +103,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
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if (NumLoops == 0) return Changed;
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--NumLoops;
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Changed |= ExtractLoop(DS, TLL) != 0;
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++NumExtracted;
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} else {
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// Okay, this function is a minimal container around the specified loop.
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// If we extract the loop, we will continue to just keep extracting it
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@ -108,6 +113,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
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if (NumLoops == 0) return Changed;
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--NumLoops;
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Changed |= ExtractLoop(DS, *i) != 0;
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++NumExtracted;
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}
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}
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}
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