another missed SSE optimization

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

diff --git a/lib/Target/X86/X86AsmPrinter.h b/lib/Target/X86/X86AsmPrinter.h
index 3b05ed96f922377f2215e4a34f753a0fe7416a6a..45be89eb2161b1bf1ea039875238787e49ba3ba9 100755 (executable)
--- a/lib/Target/X86/X86AsmPrinter.h
+++ b/lib/Target/X86/X86AsmPrinter.h
@@ -17,24 +17,62 @@
 #define X86ASMPRINTER_H
 
 #include "X86.h"
+#include "X86MachineFunctionInfo.h"
+#include "X86TargetMachine.h"
 #include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/ADT/Statistic.h"
+#include "llvm/CodeGen/DwarfWriter.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/Support/Compiler.h"
+#include <set>
+
 
 namespace llvm {
-namespace x86 {
 
-extern Statistic<> EmittedInsts;
+struct VISIBILITY_HIDDEN X86SharedAsmPrinter : public AsmPrinter {
+  DwarfWriter DW;
+
+  X86SharedAsmPrinter(std::ostream &O, X86TargetMachine &TM,
+                      const TargetAsmInfo *T)
+    : AsmPrinter(O, TM, T), DW(O, this, T) {
+    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;
 
-struct X86SharedAsmPrinter : public AsmPrinter {
-  X86SharedAsmPrinter(std::ostream &O, TargetMachine &TM)
-    : AsmPrinter(O, TM), forCygwin(false), forDarwin(false) { }
+  void decorateName(std::string& Name, const GlobalValue* GV);
 
   bool doInitialization(Module &M);
-  void printConstantPool(MachineConstantPool *MCP);
   bool doFinalization(Module &M);
 
-  bool forCygwin;
-  bool forDarwin;
+  void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesAll();
+    if (Subtarget->isTargetDarwin() ||
+        Subtarget->isTargetELF() ||
+        Subtarget->isTargetCygMing()) {
+      AU.addRequired<MachineModuleInfo>();
+    }
+    MachineFunctionPass::getAnalysisUsage(AU);
+  }
+
+  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() &&
@@ -44,26 +82,16 @@ struct X86SharedAsmPrinter : public AsmPrinter {
 
   inline static bool isMem(const MachineInstr *MI, unsigned Op) {
     if (MI->getOperand(Op).isFrameIndex()) return true;
-    if (MI->getOperand(Op).isConstantPoolIndex()) return true;
     return Op+4 <= MI->getNumOperands() &&
       MI->getOperand(Op  ).isRegister() && isScale(MI->getOperand(Op+1)) &&
-      MI->getOperand(Op+2).isRegister() && (MI->getOperand(Op+3).isImmediate()||
-      MI->getOperand(Op+3).isGlobalAddress());
-  }
-
-  // SwitchSection - Switch to the specified section of the executable if we are
-  // not already in it!
-  inline static void SwitchSection(std::ostream &OS, std::string &CurSection,
-                                   const char *NewSection) {
-    if (CurSection != NewSection) {
-      CurSection = NewSection;
-      if (!CurSection.empty())
-        OS << "\t" << NewSection << "\n";
-    }
+      MI->getOperand(Op+2).isRegister() &&
+      (MI->getOperand(Op+3).isImmediate() ||
+       MI->getOperand(Op+3).isGlobalAddress() ||
+       MI->getOperand(Op+3).isConstantPoolIndex() ||
+       MI->getOperand(Op+3).isJumpTableIndex());
   }
 };
 
-} // end namespace x86
 } // end namespace llvm
 
 #endif