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, 12 insertions, 0 deletions

diff --git a/lib/Target/PIC16/PIC16TargetObjectFile.cpp b/lib/Target/PIC16/PIC16TargetObjectFile.cpp
index 11c579cc57..7eedf7fe23 100644
--- a/lib/Target/PIC16/PIC16TargetObjectFile.cpp
+++ b/lib/Target/PIC16/PIC16TargetObjectFile.cpp
@@ -25,6 +25,18 @@ PIC16TargetObjectFile::PIC16TargetObjectFile() {
 PIC16TargetObjectFile::~PIC16TargetObjectFile() {
 }
 
+/// Find a pic16 section. Return null if not found. Do not create one.
+PIC16Section *PIC16TargetObjectFile::
+findPIC16Section(const std::string &Name) {
+  /// Return if we have an already existing one.
+  PIC16Section *Entry = SectionsByName[Name];
+  if (Entry)
+    return Entry;
+
+  return NULL;
+}
+
+
 /// Find a pic16 section. If not found, create one.
 PIC16Section *PIC16TargetObjectFile::
 getPIC16Section(const std::string &Name, PIC16SectionType Ty,