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Add statistics to the loop extractor. The loop extractor has successfully

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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
This commit is contained in:
Chris Lattner
2004-03-18 05:46:10 +00:00
parent fdded9f95a
commit f6e43bc796
1 changed files with 6 additions and 0 deletions
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6
lib/Transforms/IPO/LoopExtractor.cpp
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@ -22,9 +22,12 @@
#include "llvm/Analysis/LoopInfo.h" #include "llvm/Analysis/LoopInfo.h"
#include "llvm/Transforms/Scalar.h" #include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/FunctionUtils.h" #include "llvm/Transforms/Utils/FunctionUtils.h"
#include "Support/Statistic.h"
using namespace llvm; using namespace llvm;
namespace { namespace {
Statistic<> NumExtracted("loop-extract", "Number of loops extracted");
// FIXME: This is not a function pass, but the PassManager doesn't allow // FIXME: This is not a function pass, but the PassManager doesn't allow
// Module passes to require FunctionPasses, so we can't get loop info if we're // Module passes to require FunctionPasses, so we can't get loop info if we're
// not a function pass. // not a function pass.
@ -72,6 +75,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
if (NumLoops == 0) return Changed; if (NumLoops == 0) return Changed;
--NumLoops; --NumLoops;
Changed |= ExtractLoop(DS, *i) != 0; Changed |= ExtractLoop(DS, *i) != 0;
++NumExtracted;
} }
} else { } else {
// Otherwise there is exactly one top-level loop. If this function is more // Otherwise there is exactly one top-level loop. If this function is more
@ -99,6 +103,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
if (NumLoops == 0) return Changed; if (NumLoops == 0) return Changed;
--NumLoops; --NumLoops;
Changed |= ExtractLoop(DS, TLL) != 0; Changed |= ExtractLoop(DS, TLL) != 0;
++NumExtracted;
} else { } else {
// Okay, this function is a minimal container around the specified loop. // Okay, this function is a minimal container around the specified loop.
// If we extract the loop, we will continue to just keep extracting it // If we extract the loop, we will continue to just keep extracting it
@ -108,6 +113,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
if (NumLoops == 0) return Changed; if (NumLoops == 0) return Changed;
--NumLoops; --NumLoops;
Changed |= ExtractLoop(DS, *i) != 0; Changed |= ExtractLoop(DS, *i) != 0;
++NumExtracted;
} }
} }
} }