Compute feature bits at time of MCSubtargetInfo initialization.

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

diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp
index 87c2208e9d42a0cb2fb46270c354610ae69a05be..7a5d417ce647b07e25e407f97cbfba1ff9c22b80 100644 (file)
--- a/lib/Target/Mips/MipsSubtarget.cpp
+++ b/lib/Target/Mips/MipsSubtarget.cpp
@@ -7,43 +7,44 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file implements the Mips specific subclass of TargetSubtarget.
+// This file implements the Mips specific subclass of TargetSubtargetInfo.
 //
 //===----------------------------------------------------------------------===//
 
 #include "MipsSubtarget.h"
 #include "Mips.h"
-#include "MipsGenSubtarget.inc"
-#include "llvm/Module.h"
-#include "llvm/Support/CommandLine.h"
-using namespace llvm;
 
-static cl::opt<bool>
-NotABICall("disable-mips-abicall", cl::Hidden,
-           cl::desc("Disable code for SVR4-style dynamic objects"));
-static cl::opt<bool>
-AbsoluteCall("enable-mips-absolute-call", cl::Hidden,
-             cl::desc("Enable absolute call within abicall"));
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "MipsGenSubtargetInfo.inc"
+
+using namespace llvm;
 
-MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M, 
-                             const std::string &FS, bool little) : 
+MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
+                             const std::string &FS, bool little) :
+  MipsGenSubtargetInfo(TT, CPU, FS),
   MipsArchVersion(Mips1), MipsABI(O32), IsLittle(little), IsSingleFloat(false),
-  IsFP64bit(false), IsGP64bit(false), HasVFPU(false), HasABICall(true), 
-  HasAbsoluteCall(false), IsLinux(true), HasSEInReg(false), HasCondMov(false),
-  HasMulDivAdd(false), HasMinMax(false), HasSwap(false), HasBitCount(false)
+  IsFP64bit(false), IsGP64bit(false), HasVFPU(false), IsLinux(true),
+  HasSEInReg(false), HasCondMov(false), HasMulDivAdd(false), HasMinMax(false),
+  HasSwap(false), HasBitCount(false)
 {
-  std::string CPU = "mips1";
+  std::string CPUName = CPU;
+  if (CPUName.empty())
+    CPUName = "mips1";
   MipsArchVersion = Mips1;
 
   // Parse features string.
-  ParseSubtargetFeatures(FS, CPU);
-  const std::string& TT = M.getTargetTriple();
+  ParseSubtargetFeatures(CPUName, FS);
+
+  // Initialize scheduling itinerary for the specified CPU.
+  InstrItins = getInstrItineraryForCPU(CPUName);
 
   // Is the target system Linux ?
   if (TT.find("linux") == std::string::npos)
     IsLinux = false;
 
-  // When only the target triple is specified and is 
+  // When only the target triple is specified and is
   // a allegrex target, set the features. We also match
   // big and little endian allegrex cores (dont really
   // know if a big one exists)
@@ -58,13 +59,4 @@ MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M,
     HasSwap = true;
     HasCondMov = true;
   }
-
-  // Abicall is the default for O32 ABI, but is disabled within EABI and in
-  // static code.
-  if (NotABICall || isABI_EABI() || (TM.getRelocationModel() == Reloc::Static))
-    HasABICall = false;
-
-  // TODO: disable when handling 64 bit symbols in the future.
-  if (HasABICall && AbsoluteCall)
-    HasAbsoluteCall = true;
 }