Fix off-by-one stack offset computations (dwarf information) for callee-saved

[oota-llvm.git] / lib / Target / X86 / X86AsmPrinter.h

diff --git a/lib/Target/X86/X86AsmPrinter.h b/lib/Target/X86/X86AsmPrinter.h
old mode 100755 (executable)
new mode 100644 (file)
index abf0b41..a32142c
--- a/lib/Target/X86/X86AsmPrinter.h
+++ b/lib/Target/X86/X86AsmPrinter.h
@@ -17,66 +17,64 @@
 #define X86ASMPRINTER_H
 
 #include "X86.h"
+#include "X86MachineFunctionInfo.h"
 #include "X86TargetMachine.h"
 #include "llvm/CodeGen/AsmPrinter.h"
 #include "llvm/CodeGen/DwarfWriter.h"
-#include "llvm/CodeGen/MachineDebugInfo.h"
-#include "llvm/ADT/Statistic.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/Support/Compiler.h"
 #include <set>
 
 
 namespace llvm {
 
-extern Statistic<> EmittedInsts;
-
-/// X86DwarfWriter - Dwarf debug info writer customized for Darwin/Mac OS X
-///
-struct X86DwarfWriter : public DwarfWriter {
-  X86DwarfWriter(std::ostream &o, AsmPrinter *ap) : DwarfWriter(o, ap) {
-      needsSet = true;
-      DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
-      DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
-      DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
-      DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
-      DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
-      DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
-      DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
-      DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
-      DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
-      DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
-      DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
-      TextSection = ".text";
-      DataSection = ".data";
-  }
-  virtual void virtfn();  // out of line virtual fn.
-};
-
-struct X86SharedAsmPrinter : public AsmPrinter {
-  X86DwarfWriter DW;
+struct VISIBILITY_HIDDEN X86SharedAsmPrinter : public AsmPrinter {
+  DwarfWriter DW;
+  MachineModuleInfo *MMI;
 
-  X86SharedAsmPrinter(std::ostream &O, X86TargetMachine &TM)
-    : AsmPrinter(O, TM), DW(O, this) {
+  X86SharedAsmPrinter(std::ostream &O, X86TargetMachine &TM,
+                      const TargetAsmInfo *T)
+    : AsmPrinter(O, TM, T), DW(O, this, T), MMI(0) {
     Subtarget = &TM.getSubtarget<X86Subtarget>();
   }
 
+  // We have to propagate some information about MachineFunction to
+  // AsmPrinter. It's ok, when we're printing the function, since we have
+  // access to MachineFunction and can get the appropriate MachineFunctionInfo.
+  // Unfortunately, this is not possible when we're printing reference to
+  // Function (e.g. calling it and so on). Even more, there is no way to get the
+  // corresponding MachineFunctions: it can even be not created at all. That's
+  // why we should use additional structure, when we're collecting all necessary
+  // information.
+  //
+  // This structure is using e.g. for name decoration for stdcall & fastcall'ed
+  // function, since we have to use arguments' size for decoration.
+  typedef std::map<const Function*, X86MachineFunctionInfo> FMFInfoMap;
+  FMFInfoMap FunctionInfoMap;
+
+  void decorateName(std::string& Name, const GlobalValue* GV);
+
   bool doInitialization(Module &M);
   bool doFinalization(Module &M);
 
   void getAnalysisUsage(AnalysisUsage &AU) const {
     AU.setPreservesAll();
-    if (Subtarget->isTargetDarwin()) {
-      AU.addRequired<MachineDebugInfo>();
+    if (Subtarget->isTargetDarwin() ||
+        Subtarget->isTargetELF() ||
+        Subtarget->isTargetCygMing()) {
+      AU.addRequired<MachineModuleInfo>();
     }
-    MachineFunctionPass::getAnalysisUsage(AU);
+    AsmPrinter::getAnalysisUsage(AU);
   }
 
-  const char *DefaultTextSection;   // "_text" for MASM, ".text" for others.
-  const char *DefaultDataSection;   // "_data" for MASM, ".data" for others.
   const X86Subtarget *Subtarget;
 
   // Necessary for Darwin to print out the apprioriate types of linker stubs
   std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
 
+  // Necessary for dllexport support
+  std::set<std::string> DLLExportedFns, DLLExportedGVs;
+
   inline static bool isScale(const MachineOperand &MO) {
     return MO.isImmediate() &&
           (MO.getImmedValue() == 1 || MO.getImmedValue() == 2 ||
@@ -90,7 +88,8 @@ struct X86SharedAsmPrinter : public AsmPrinter {
       MI->getOperand(Op+2).isRegister() &&
       (MI->getOperand(Op+3).isImmediate() ||
        MI->getOperand(Op+3).isGlobalAddress() ||
-       MI->getOperand(Op+3).isConstantPoolIndex());
+       MI->getOperand(Op+3).isConstantPoolIndex() ||
+       MI->getOperand(Op+3).isJumpTableIndex());
   }
 };