Print variable's display name in dwarf DIE.

[oota-llvm.git] / lib / Target / Mips / MipsTargetMachine.cpp

diff --git a/lib/Target/Mips/MipsTargetMachine.cpp b/lib/Target/Mips/MipsTargetMachine.cpp
index a85833ebc0c6b42f4cad203fa5ed6eec94b6277f..4b13b78d020b5cf82f31b03b169334c972ae7b2e 100644 (file)
--- a/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/lib/Target/Mips/MipsTargetMachine.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Bruno Cardoso Lopes and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -19,10 +19,17 @@
 #include "llvm/Target/TargetMachineRegistry.h"
 using namespace llvm;
 
-namespace {
-  // Register the target.
-  RegisterTarget<MipsTargetMachine> X("mips", "  Mips");
-}
+/// MipsTargetMachineModule - Note that this is used on hosts that
+/// cannot link in a library unless there are references into the
+/// library.  In particular, it seems that it is not possible to get
+/// things to work on Win32 without this.  Though it is unused, do not
+/// remove it.
+extern "C" int MipsTargetMachineModule;
+int MipsTargetMachineModule = 0;
+
+// Register the target.
+static RegisterTarget<MipsTargetMachine>    X("mips", "Mips");
+static RegisterTarget<MipselTargetMachine>  Y("mipsel", "Mipsel");
 
 const TargetAsmInfo *MipsTargetMachine::
 createTargetAsmInfo() const 
@@ -31,30 +38,74 @@ createTargetAsmInfo() const
 }
 
 // DataLayout --> Big-endian, 32-bit pointer/ABI/alignment
-// FrameInfo  --> StackGrowsDown, 8 bytes aligned, LOA : -4 (Ra : 0)
+// The stack is always 8 byte aligned
+// On function prologue, the stack is created by decrementing
+// its pointer. Once decremented, all references are done with positive
+// offset from the stack/frame pointer, using StackGrowsUp enables 
+// an easier handling.
+// Using CodeModel::Large enables different CALL behavior.
 MipsTargetMachine::
-MipsTargetMachine(const Module &M, const std::string &FS): 
-  Subtarget(*this, M, FS), DataLayout("E-p:32:32:32"), 
-  InstrInfo(*this), FrameInfo(TargetFrameInfo::StackGrowsDown, 8, -4),
-  TLInfo(*this) {}
+MipsTargetMachine(const Module &M, const std::string &FS, bool isLittle=false):
+  Subtarget(*this, M, FS, isLittle), 
+  DataLayout(isLittle ? std::string("e-p:32:32:32-i8:8:32-i16:16:32") :
+                        std::string("E-p:32:32:32-i8:8:32-i16:16:32")), 
+  InstrInfo(*this), 
+  FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0),
+  TLInfo(*this) 
+{
+  // Abicall enables PIC by default
+  if (Subtarget.hasABICall())
+    setRelocationModel(Reloc::PIC_);  
+
+  // TODO: create an option to enable long calls, like -mlong-calls, 
+  // that would be our CodeModel::Large. It must not work with Abicall.
+  if (getCodeModel() == CodeModel::Default)
+    setCodeModel(CodeModel::Small);
+}
+
+MipselTargetMachine::
+MipselTargetMachine(const Module &M, const std::string &FS) :
+  MipsTargetMachine(M, FS, true) {}
 
 // return 0 and must specify -march to gen MIPS code.
 unsigned MipsTargetMachine::
-getModuleMatchQuality(const Module &M) {
-  // We strongly match "mips-*".
+getModuleMatchQuality(const Module &M) 
+{
+  // We strongly match "mips*-*".
   std::string TT = M.getTargetTriple();
   if (TT.size() >= 5 && std::string(TT.begin(), TT.begin()+5) == "mips-")
     return 20;
-  // If the target triple is something non-mips, we don't match.
-  if (!TT.empty()) return 0;
+  
+  if (TT.size() >= 13 && std::string(TT.begin(), 
+      TT.begin()+13) == "mipsallegrex-")
+    return 20;
 
   return 0;
 }
 
+// return 0 and must specify -march to gen MIPSEL code.
+unsigned MipselTargetMachine::
+getModuleMatchQuality(const Module &M) 
+{
+  // We strongly match "mips*el-*".
+  std::string TT = M.getTargetTriple();
+  if (TT.size() >= 7 && std::string(TT.begin(), TT.begin()+7) == "mipsel-")
+    return 20;
+
+  if (TT.size() >= 15 && std::string(TT.begin(), 
+      TT.begin()+15) == "mipsallegrexel-")
+    return 20;
+
+  if (TT.size() == 3 && std::string(TT.begin(), TT.begin()+3) == "psp")
+    return 20;
+  
+  return 0;
+}
+
 // Install an instruction selector pass using 
 // the ISelDag to gen Mips code.
 bool MipsTargetMachine::
-addInstSelector(FunctionPassManager &PM, bool Fast) 
+addInstSelector(PassManagerBase &PM, bool Fast) 
 {
   PM.add(createMipsISelDag(*this));
   return false;
@@ -63,20 +114,20 @@ addInstSelector(FunctionPassManager &PM, bool Fast)
 // Implemented by targets that want to run passes immediately before 
 // machine code is emitted. return true if -print-machineinstrs should 
 // print out the code after the passes.
-// TODO: Delay slot must be implemented here.
 bool MipsTargetMachine::
-addPreEmitPass(FunctionPassManager &PM, bool Fast) 
+addPreEmitPass(PassManagerBase &PM, bool Fast) 
 {
-  return false;
+  PM.add(createMipsDelaySlotFillerPass(*this));
+  return true;
 }
 
 // Implements the AssemblyEmitter for the target. Must return
 // true if AssemblyEmitter is supported
 bool MipsTargetMachine::
-addAssemblyEmitter(FunctionPassManager &PM, bool Fast, 
-                   std::ostream &Out) 
+addAssemblyEmitter(PassManagerBase &PM, bool Fast, 
+                   raw_ostream &Out) 
 {
   // Output assembly language.
-  PM.add(createMipsCodePrinterPass(Out, *this));
+  PM.add(createMipsCodePrinterPass(Out, *this, Fast));
   return false;
 }