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Save a mapping between original and cloned constpool entries.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124570 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2011-01-30 22:07:39 +00:00
parent ed299f6fa9
commit 98b928ea71
2 changed files with 25 additions and 0 deletions
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8
lib/Target/ARM/ARMConstantIslandPass.cpp
View File

@ -368,6 +368,14 @@ bool ARMConstantIslands::runOnMachineFunction(MachineFunction &MF) {
if (isThumb && !HasFarJump && AFI->isLRSpilledForFarJump())
MadeChange |= UndoLRSpillRestore();
// Save the mapping between original and cloned constpool entries.
for (unsigned i = 0, e = CPEntries.size(); i != e; ++i) {
for (unsigned j = 0, je = CPEntries[i].size(); j != je; ++j) {
const CPEntry & CPE = CPEntries[i][j];
AFI->recordCPEClone(i, CPE.CPI);
}
}
DEBUG(errs() << '\n'; dumpBBs());
BBSizes.clear();

17
lib/Target/ARM/ARMMachineFunctionInfo.h
View File

@ -95,6 +95,10 @@ class ARMFunctionInfo : public MachineFunctionInfo {
/// HasITBlocks - True if IT blocks have been inserted.
bool HasITBlocks;
/// CPEClones - Track constant pool entries clones created by Constant Island
/// pass.
DenseMap<unsigned, unsigned> CPEClones;
public:
ARMFunctionInfo() :
isThumb(false),
@ -244,6 +248,19 @@ public:
bool hasITBlocks() const { return HasITBlocks; }
void setHasITBlocks(bool h) { HasITBlocks = h; }
void recordCPEClone(unsigned CPIdx, unsigned CPCloneIdx) {
if (!CPEClones.insert(std::make_pair(CPCloneIdx, CPIdx)).second)
assert(0 && "Duplicate entries!");
}
unsigned getOriginalCPIdx(unsigned CloneIdx) const {
DenseMap<unsigned, unsigned>::const_iterator I = CPEClones.find(CloneIdx);
if (I != CPEClones.end())
return I->second;
else
return -1U;
}
};
} // End llvm namespace