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Update to in-place spilling framework. Includes live interval scaling and trivial rewriter.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72729 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames
2009-06-02 16:53:25 +00:00
parent 874ae251c3
commit f41538d1b5
13 changed files with 405 additions and 114 deletions
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9
lib/CodeGen/LiveStackAnalysis.cpp
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@@ -15,15 +15,24 @@
#define DEBUG_TYPE "livestacks"
#include "llvm/CodeGen/LiveStackAnalysis.h"
#include "llvm/CodeGen/LiveIntervalAnalysis.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Support/Debug.h"
#include "llvm/ADT/Statistic.h"
#include <limits>
using namespace llvm;
char LiveStacks::ID = 0;
static RegisterPass<LiveStacks> X("livestacks", "Live Stack Slot Analysis");
void LiveStacks::scaleNumbering(int factor) {
// Scale the intervals.
for (iterator LI = begin(), LE = end(); LI != LE; ++LI) {
LI->second.scaleNumbering(factor);
}
}
void LiveStacks::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
MachineFunctionPass::getAnalysisUsage(AU);