Implement _CONFIG macro to allow users to se to configuration settings on the part.

Implement _section macro to allow users to place objects in specific sections.
Implement _address macro to allow users to place objects at a particular address.
Placing objects at a memory address:
crate a unique section name from varname, address, object type and put that section at specified address. Mark this section a full (size = banksize) so that other objects do not compete for it while placing objects to sections in AsmPrinter.

llvm-svn: 74822

1 files changed, 17 insertions, 5 deletions

diff --git a/llvm/lib/Target/PIC16/PIC16.h b/llvm/lib/Target/PIC16/PIC16.h
index 57b08b730d0..0a71b130a0b 100644
--- a/llvm/lib/Target/PIC16/PIC16.h
+++ b/llvm/lib/Target/PIC16/PIC16.h
@@ -221,17 +221,29 @@ namespace PIC16CC {
       return Func1 + tag + "# CODE";
     }
 
-    // udata and idata section names are generated by a given number.
+    // udata, romdata and idata section names are generated by a given number.
     // @udata.<num>.# 
-    static std::string getUdataSectionName(unsigned num) {
+    static std::string getUdataSectionName(unsigned num, 
+                                           std::string prefix = "") {
        std::ostringstream o;
-       o << getTagName(PREFIX_SYMBOL) << "udata." << num << ".# UDATA"; 
+       o << getTagName(PREFIX_SYMBOL) << prefix << "udata." << num 
+         << ".# UDATA"; 
        return o.str(); 
     }
 
-    static std::string getIdataSectionName(unsigned num) {
+    static std::string getRomdataSectionName(unsigned num,
+                                             std::string prefix = "") {
        std::ostringstream o;
-       o << getTagName(PREFIX_SYMBOL) << "idata." << num << ".# IDATA"; 
+       o << getTagName(PREFIX_SYMBOL) << prefix << "romdata." << num 
+         << ".# ROMDATA";
+       return o.str();
+    }
+
+    static std::string getIdataSectionName(unsigned num,
+                                           std::string prefix = "") {
+       std::ostringstream o;
+       o << getTagName(PREFIX_SYMBOL) << prefix << "idata." << num 
+         << ".# IDATA"; 
        return o.str(); 
     }