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OptimalEdgeProfiling: Reading in Profiles.

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This enables LLVM to read the OptimalEdgeProfiles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80715 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andreas Neustifter
2009-09-01 19:08:51 +00:00
parent ad09d42e04
commit da5ea94554
3 changed files with 196 additions and 7 deletions
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33
lib/Analysis/ProfileInfoLoader.cpp
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@ -54,17 +54,34 @@ static void ReadProfilingBlock(const char *ToolName, FILE *F,
exit(1);
}
// Make sure we have enough space...
// Make sure we have enough space... The space is initialised to -1 to
// facitiltate the loading of missing values for OptimalEdgeProfiling.
if (Data.size() < NumEntries)
Data.resize(NumEntries);
Data.resize(NumEntries, -1);
// Accumulate the data we just read into the data.
if (!ShouldByteSwap) {
for (unsigned i = 0; i != NumEntries; ++i)
Data[i] += TempSpace[i];
for (unsigned i = 0; i != NumEntries; ++i) {
unsigned data = TempSpace[i];
if (data != (unsigned)-1) { // only load data if its not MissingVal
if (Data[i] == (unsigned)-1) {
Data[i] = data; // if data is still initialised
} else {
Data[i] += data;
}
}
}
} else {
for (unsigned i = 0; i != NumEntries; ++i)
Data[i] += ByteSwap(TempSpace[i], true);
for (unsigned i = 0; i != NumEntries; ++i) {
unsigned data = ByteSwap(TempSpace[i], true);
if (data != (unsigned)-1) { // only load data if its not MissingVal
if (Data[i] == (unsigned)-1) {
Data[i] = data;
} else {
Data[i] += data;
}
}
}
}
}
@ -127,6 +144,10 @@ ProfileInfoLoader::ProfileInfoLoader(const char *ToolName,
ReadProfilingBlock(ToolName, F, ShouldByteSwap, EdgeCounts);
break;
case OptEdgeInfo:
ReadProfilingBlock(ToolName, F, ShouldByteSwap, OptimalEdgeCounts);
break;
case BBTraceInfo:
ReadProfilingBlock(ToolName, F, ShouldByteSwap, BBTrace);
break;