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Add the ability to synthesize function counts from block count information

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9595 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-10-29 21:47:44 +00:00
parent 18884a86ae
commit 750ba3d6eb
2 changed files with 10 additions and 3 deletions
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11
tools/llvm-prof/ProfileInfo.cpp
View File

@ -141,8 +141,15 @@ ProfileInfo::ProfileInfo(const char *ToolName, const std::string &Filename,
void ProfileInfo::getFunctionCounts(std::vector<std::pair<Function*,
unsigned> > &Counts) {
if (FunctionCounts.empty()) {
std::cerr << "Function counts not available, and no synthesis "
<< "is implemented yet!\n";
// Synthesize function frequency information from the number of times their
// entry blocks were executed.
std::vector<std::pair<BasicBlock*, unsigned> > BlockCounts;
getBlockCounts(BlockCounts);
for (unsigned i = 0, e = BlockCounts.size(); i != e; ++i)
if (&BlockCounts[i].first->getParent()->front() == BlockCounts[i].first)
Counts.push_back(std::make_pair(BlockCounts[i].first->getParent(),
BlockCounts[i].second));
return;
}

2
tools/llvm-prof/llvm-prof.cpp
View File

@ -123,7 +123,7 @@ int main(int argc, char **argv) {
unsigned BlocksToPrint = Counts.size();
if (BlocksToPrint > 20) BlocksToPrint = 20;
for (unsigned i = 0; i != BlocksToPrint; ++i)
printf("%3d. %5d/%d %s - %s\n", i+1, Counts[i].second, TotalExecutions,
printf("%3d. %5d/%d %s() - %s\n", i+1, Counts[i].second, TotalExecutions,
Counts[i].first->getParent()->getName().c_str(),
Counts[i].first->getName().c_str());