Add a pass to overlay pic16 data sections for function frame and automatic

variables. This pass can be invoked by llvm-ld or opt to traverse over the call graph 
to detect what function frames and their automatic variables can be overlaid.
Currently this builds an archive , but needs to be changed to a loadable module.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84753 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/Target/PIC16/PIC16TargetObjectFile.h b/lib/Target/PIC16/PIC16TargetObjectFile.h
index 6ec5512719..ca07bedafe 100644
--- a/lib/Target/PIC16/PIC16TargetObjectFile.h
+++ b/lib/Target/PIC16/PIC16TargetObjectFile.h
@@ -116,6 +116,9 @@ namespace llvm {
     ~PIC16TargetObjectFile();
     void Initialize(MCContext &Ctx, const TargetMachine &TM);
 
+    /// Return the section with the given Name. Null if not found.
+    PIC16Section *findPIC16Section(const std::string &Name);
+
     /// Override section allocations for user specified sections.
     virtual const MCSection *
     getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind, 
@@ -127,6 +130,7 @@ namespace llvm {
                                                     Mangler *Mang,
                                                     const TargetMachine&) const;
 
+
     /// Return a code section for a function.
     const PIC16Section *SectionForCode (const std::string &FnName) const;