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Update GCOVLines to provide interfaces to write line table and calculate complete length.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140167 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2011-09-20 18:35:00 +00:00
parent f34fa6f34e
commit 16c19a155c
1 changed files with 17 additions and 13 deletions
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30
lib/Transforms/Instrumentation/GCOVProfiling.cpp
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@ -158,7 +158,8 @@ namespace {
class GCOVBlock;
// Constructed only by requesting it from a GCOVBlock, this object stores a
// list of line numbers representing lines that belong to the block.
// list of line numbers and a single filename, representing lines that belong
// to the block.
class GCOVLines : public GCOVRecord {
public:
void addLine(uint32_t Line) {
@ -166,17 +167,25 @@ namespace {
}
uint32_t length() {
// FIXME: ??? What is the significance of 2 here ?
return 2 + Lines.size();
// Here 2 = 1 for string lenght + 1 for '0' id#.
return lengthOfGCOVString(Filename) + 2 + Lines.size();
}
void writeOut() {
write(0);
writeGCOVString(Filename);
for (int i = 0, e = Lines.size(); i != e; ++i)
write(Lines[i]);
}
private:
friend class GCOVBlock;
GCOVLines(raw_ostream *os) {
GCOVLines(StringRef F, raw_ostream *os)
: Filename(F) {
this->os = os;
}
StringRef Filename;
SmallVector<uint32_t, 32> Lines;
};
@ -188,7 +197,7 @@ namespace {
GCOVLines &getFile(StringRef Filename) {
GCOVLines *&Lines = LinesByFile[Filename];
if (!Lines) {
Lines = new GCOVLines(os);
Lines = new GCOVLines(Filename, os);
}
return *Lines;
}
@ -201,20 +210,15 @@ namespace {
uint32_t Len = 3;
for (StringMap<GCOVLines *>::iterator I = LinesByFile.begin(),
E = LinesByFile.end(); I != E; ++I) {
Len = Len + lengthOfGCOVString(I->first()) + I->second->length();
Len += I->second->length();
}
writeBytes(LinesTag, 4);
write(Len);
write(Number);
for (StringMap<GCOVLines *>::iterator I = LinesByFile.begin(),
E = LinesByFile.end(); I != E; ++I) {
write(0);
writeGCOVString(I->first());
for (int i = 0, e = I->second->Lines.size(); i != e; ++i) {
write(I->second->Lines[i]);
}
}
E = LinesByFile.end(); I != E; ++I)
I->second->writeOut();
write(0);
write(0);
}