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Updated ProfileInfo to have clean seperation between different sentinels.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81335 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andreas Neustifter
2009-09-09 12:48:26 +00:00
parent d8b0630027
commit 1f3b00272a
4 changed files with 38 additions and 17 deletions
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30
lib/Analysis/ProfileInfoLoaderPass.cpp
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@ -159,8 +159,12 @@ void LoaderPass::recurseBasicBlock(const BasicBlock *BB) {
void LoaderPass::readOrRememberEdge(ProfileInfo::Edge e,
unsigned weight, unsigned ei,
Function *F) {
if (weight != ~0U) {
EdgeInformation[F][e] += weight;
if (weight != ProfileInfoLoader::Uncounted) {
// Here the data realm changes from the unsigned of the file to the double
// of the ProfileInfo. This conversion is save because we know that
// everything thats representable in unsinged is also representable in
// double.
EdgeInformation[F][e] += (double)weight;
DEBUG(errs()<<"--Read Edge Counter for " << e
<<" (# "<<ei<<"): "<<(unsigned)getEdgeWeight(e)<<"\n");
} else {
@ -178,8 +182,12 @@ bool LoaderPass::runOnModule(Module &M) {
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F) {
if (F->isDeclaration()) continue;
if (ei < ECs.size())
// Here the data realm changes from the unsigned of the file to the
// double of the ProfileInfo. This conversion is save because we know
// that everything thats representable in unsinged is also
// representable in double.
EdgeInformation[F][ProfileInfo::getEdge(0, &F->getEntryBlock())] +=
ECs[ei++];
(double)ECs[ei++];
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
// Okay, we have to add a counter of each outgoing edge. If the
// outgoing edge is not critical don't split it, just insert the counter
@ -187,8 +195,10 @@ bool LoaderPass::runOnModule(Module &M) {
TerminatorInst *TI = BB->getTerminator();
for (unsigned s = 0, e = TI->getNumSuccessors(); s != e; ++s) {
if (ei < ECs.size())
// Here the data realm changes from the unsigned of the file to
// the double of the ProfileInfo.
EdgeInformation[F][ProfileInfo::getEdge(BB, TI->getSuccessor(s))] +=
ECs[ei++];
(double)ECs[ei++];
}
}
}
@ -264,7 +274,11 @@ bool LoaderPass::runOnModule(Module &M) {
if (F->isDeclaration()) continue;
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB)
if (bi < BCs.size())
BlockInformation[F][BB] = BCs[bi++];
// Here the data realm changes from the unsigned of the file to the
// double of the ProfileInfo. This conversion is save because we know
// that everything thats representable in unsinged is also
// representable in double.
BlockInformation[F][BB] = (double)BCs[bi++];
}
if (bi != BCs.size()) {
errs() << "WARNING: profile information is inconsistent with "
@ -279,7 +293,11 @@ bool LoaderPass::runOnModule(Module &M) {
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F) {
if (F->isDeclaration()) continue;
if (fi < FCs.size())
FunctionInformation[F] = FCs[fi++];
// Here the data realm changes from the unsigned of the file to the
// double of the ProfileInfo. This conversion is save because we know
// that everything thats representable in unsinged is also
// representable in double.
FunctionInformation[F] = (double)FCs[fi++];
}
if (fi != FCs.size()) {
errs() << "WARNING: profile information is inconsistent with "