Add a pass to do call graph analyis to overlay the autos and frame sections of
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
diff --git a/lib/Target/PIC16/PIC16TargetObjectFile.cpp b/lib/Target/PIC16/PIC16TargetObjectFile.cpp
index 3ff27a9..4c2349f 100644
--- a/lib/Target/PIC16/PIC16TargetObjectFile.cpp
+++ b/lib/Target/PIC16/PIC16TargetObjectFile.cpp
@@ -82,6 +82,35 @@
return getPIC16Section(T.c_str(), SectionKind::getDataRel());
}
+std::string PIC16TargetObjectFile::getNameForFunctFrame(const Function *F,
+ bool IsAutosSection) {
+ std::string SectionName = F->getName();
+ if (F->hasSection()) {
+ std::string Sectn = F->getSection();
+ std::string StrToFind = "Overlay=";
+ unsigned Pos = Sectn.find(StrToFind);
+ if (Pos != std::string::npos) {
+ Pos += StrToFind.length();
+ std::string Color = "";
+ char c = Sectn.at(Pos);
+ // A Color can only consist on upper case letters or underscore.
+ while ((c >= 'A' && c<= 'Z') || c == '_') {
+ Color.append(1,c);
+ Pos++;
+ if (Pos >= Sectn.length())
+ break;
+ c = Sectn.at(Pos);
+ }
+ // Autos Section need to be given a different name from function frame.
+ if (IsAutosSection)
+ SectionName = PAN::getAutosSectionForColor(Color);
+ else
+ SectionName = Color;
+ }
+ }
+ return SectionName;
+}
+
const MCSection *
PIC16TargetObjectFile::getBSSSectionForGlobal(const GlobalVariable *GV) const {
assert(GV->hasInitializer() && "This global doesn't need space");