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Add a pass to do call graph analyis to overlay the autos and frame sections of

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leaf functions. This pass will be extended to color other nodes of the call tree 
as well in future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79631 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjiv Gupta
2009-08-21 15:22:33 +00:00
parent 1f2b32c5c6
commit eaa8b1f81d
10 changed files with 202 additions and 8 deletions
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20
lib/Target/PIC16/AsmPrinter/PIC16AsmPrinter.cpp
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@@ -73,7 +73,7 @@ bool PIC16AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
DbgInfo.BeginFunction(MF);
// Emit the autos section of function.
EmitAutos(CurrentFnName);
EmitAutos(F);
// Now emit the instructions of function in its code section.
const MCSection *fCodeSection =
@@ -362,9 +362,10 @@ void PIC16AsmPrinter::EmitFunctionFrame(MachineFunction &MF) {
const TargetData *TD = TM.getTargetData();
// Emit the data section name.
O << "\n";
std::string SectionName = getObjFileLowering().getNameForFunctFrame(F);
const MCSection *fPDataSection =
getObjFileLowering().getSectionForFunctionFrame(CurrentFnName);
getObjFileLowering().getSectionForFunctionFrame(SectionName);
OutStreamer.SwitchSection(fPDataSection);
// Emit function frame label
@@ -440,12 +441,12 @@ void PIC16AsmPrinter::EmitUData(Module &M) {
}
}
void PIC16AsmPrinter::EmitAutos(std::string FunctName) {
void PIC16AsmPrinter::EmitAutos(const Function *F) {
// Section names for all globals are already set.
const TargetData *TD = TM.getTargetData();
// Now print Autos section for this function.
std::string SectionName = PAN::getAutosSectionName(FunctName);
std::string SectionName = PAN::getAutosSectionName(CurrentFnName);
// If this function is a cloned function then the name of auto section
// will not be present in the list of existing section. Hence this section
@@ -459,6 +460,15 @@ void PIC16AsmPrinter::EmitAutos(std::string FunctName) {
if (AutosSections[i]->S_->getName() == SectionName) {
// Set the printing status to true
AutosSections[i]->setPrintedStatus(true);
// Overlay auto sections with same function color.
std::string BaseSectionName = getObjFileLowering().
getNameForFunctFrame(F, true);
if (BaseSectionName != F->getName()) {
std::string NewSectionName = PAN::getAutosSectionName(BaseSectionName);
const_cast<MCSectionPIC16 *>(AutosSections[i]->S_)->setName(
NewSectionName);
}
OutStreamer.SwitchSection(AutosSections[i]->S_);
const std::vector<const GlobalVariable*> &Items = AutosSections[i]->Items;
for (unsigned j = 0; j < Items.size(); j++) {