Run through the list of globals once and sectionize all types of globlas includeing declarations. Later emit them from their section lists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71661 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PIC16/PIC16TargetAsmInfo.cpp b/lib/Target/PIC16/PIC16TargetAsmInfo.cpp
index 295188f..9d7592a 100644
--- a/lib/Target/PIC16/PIC16TargetAsmInfo.cpp
+++ b/lib/Target/PIC16/PIC16TargetAsmInfo.cpp
@@ -45,6 +45,8 @@
// in BeginModule, and gpasm cribbs for that .text symbol.
TextSection = getUnnamedSection("", SectionFlags::Code);
ROSection = new PIC16Section(getReadOnlySection());
+ ExternalVarDecls = new PIC16Section(getNamedSection("ExternalVarDecls"));
+ ExternalVarDefs = new PIC16Section(getNamedSection("ExternalVarDefs"));
}
const char *PIC16TargetAsmInfo::getRomDirective(unsigned size) const
@@ -196,9 +198,18 @@
// We select the section based on the initializer here, so it really
// has to be a GlobalVariable.
const GlobalVariable *GV = dyn_cast<GlobalVariable>(GV1);
- if (!GV1 || ! GV->hasInitializer())
+
+ if (!GV)
return TargetAsmInfo::SelectSectionForGlobal(GV1);
+ // Record Exteranl Var Decls.
+ if (GV->isDeclaration()) {
+ ExternalVarDecls->Items.push_back(GV);
+ return ExternalVarDecls->S_;
+ }
+
+ assert (GV->hasInitializer() && "A def without initializer?");
+
// First, if this is an automatic variable for a function, get the section
// name for it and return.
const std::string name = GV->getName();
@@ -206,6 +217,11 @@
return getSectionForAuto(GV);
}
+ // Record Exteranl Var Defs.
+ if (GV->hasExternalLinkage() || GV->hasCommonLinkage()) {
+ ExternalVarDefs->Items.push_back(GV);
+ }
+
// See if this is an uninitialized global.
const Constant *C = GV->getInitializer();
if (C->isNullValue())
@@ -240,4 +256,6 @@
}
delete ROSection;
+ delete ExternalVarDecls;
+ delete ExternalVarDefs;
}