Added preliminary x86 subtarget support.

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

diff --git a/lib/Target/X86/X86.h b/lib/Target/X86/X86.h
index 6f7707c762fc3c78838c89b30025e8b9146fdce1..ff109c94269ee9630f858139d2cb19fbe39398d3 100644 (file)
--- a/lib/Target/X86/X86.h
+++ b/lib/Target/X86/X86.h
@@ -20,42 +20,35 @@
 namespace llvm {
 
 class TargetMachine;
+class PassManager;
 class FunctionPass;
 class IntrinsicLowering;
+class MachineCodeEmitter;
 
 enum X86VectorEnum {
-  NoSSE, SSE, SSE2, SSE3
+  AutoDetect, NoSSE, SSE, SSE2, SSE3
 };
 
 extern X86VectorEnum X86Vector;
+extern bool X86ScalarSSE;
+extern bool X86DAGIsel;
 
-/// createX86SimpleInstructionSelector - This pass converts an LLVM function
-/// into a machine code representation in a very simple peep-hole fashion.  The
-/// generated code sucks but the implementation is nice and simple.
+/// createX86ISelPattern - This pass converts an LLVM function into a 
+/// machine code representation using pattern matching and a machine
+/// description file.
 ///
-FunctionPass *createX86SimpleInstructionSelector(TargetMachine &TM);
+FunctionPass *createX86ISelPattern(TargetMachine &TM);
 
-/// createX86PatternInstructionSelector - This pass converts an LLVM function
-/// into a machine code representation in a more aggressive way.
+/// createX86ISelDag - This pass converts a legalized DAG into a 
+/// X86-specific DAG, ready for instruction scheduling.
 ///
-FunctionPass *createX86PatternInstructionSelector(TargetMachine &TM);
-
-/// createX86SSAPeepholeOptimizerPass - Create a pass to perform SSA-based X86
-/// specific peephole optimizations.
-///
-FunctionPass *createX86SSAPeepholeOptimizerPass();
+FunctionPass *createX86ISelDag(TargetMachine &TM);
 
 /// createX86PeepholeOptimizer - Create a pass to perform X86 specific peephole
 /// optimizations.
 ///
 FunctionPass *createX86PeepholeOptimizerPass();
 
-/// createX86FloatingPointKiller - This function returns a pass which
-/// kills every floating point register at the end of each basic block
-/// because our FloatingPointStackifier cannot handle them.
-///
-FunctionPass *createX86FloatingPointKillerPass();
-
 /// createX86FloatingPointStackifierPass - This function returns a pass which
 /// converts floating point register references and pseudo instructions into
 /// floating point stack references and physical instructions.
@@ -64,10 +57,19 @@ FunctionPass *createX86FloatingPointStackifierPass();
 
 /// createX86CodePrinterPass - Returns a pass that prints the X86
 /// assembly code for a MachineFunction to the given output stream,
-/// using the given target machine description.  This should work
-/// regardless of whether the function is in SSA form.
+/// using the given target machine description.
+///
+FunctionPass *createX86CodePrinterPass(std::ostream &o, TargetMachine &tm);
+
+/// createX86CodeEmitterPass - Return a pass that emits the collected X86 code
+/// to the specified MCE object.
+FunctionPass *createX86CodeEmitterPass(MachineCodeEmitter &MCE);
+
+/// addX86ELFObjectWriterPass - Add passes to the FPM that output the generated
+/// code as an ELF object file.
 ///
-FunctionPass *createX86CodePrinterPass(std::ostream &o,TargetMachine &tm);
+void addX86ELFObjectWriterPass(PassManager &FPM,
+                               std::ostream &o, TargetMachine &tm);
 
 /// createX86EmitCodeToMemory - Returns a pass that converts a register
 /// allocated function into raw machine code in a dynamically