Revert "[X86] Fix a variable name for r237977 so that it works with every compilers."

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

diff --git a/lib/Target/X86/X86.h b/lib/Target/X86/X86.h
index 6f7707c762fc3c78838c89b30025e8b9146fdce1..62c65bacef51793a174d27a1af5c69b827023d4a 100644 (file)
--- a/lib/Target/X86/X86.h
+++ b/lib/Target/X86/X86.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group 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.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -12,49 +12,31 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef TARGET_X86_H
-#define TARGET_X86_H
+#ifndef LLVM_LIB_TARGET_X86_X86_H
+#define LLVM_LIB_TARGET_X86_X86_H
 
-#include <iosfwd>
+#include "llvm/Support/CodeGen.h"
 
 namespace llvm {
 
-class TargetMachine;
 class FunctionPass;
-class IntrinsicLowering;
+class ImmutablePass;
+class X86TargetMachine;
 
-enum X86VectorEnum {
-  NoSSE, SSE, SSE2, SSE3
-};
-
-extern X86VectorEnum X86Vector;
-
-/// 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.
-///
-FunctionPass *createX86SimpleInstructionSelector(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);
+FunctionPass *createX86ISelDag(X86TargetMachine &TM,
+                               CodeGenOpt::Level OptLevel);
 
-/// createX86SSAPeepholeOptimizerPass - Create a pass to perform SSA-based X86
-/// specific peephole optimizations.
-///
-FunctionPass *createX86SSAPeepholeOptimizerPass();
-
-/// createX86PeepholeOptimizer - Create a pass to perform X86 specific peephole
-/// optimizations.
-///
-FunctionPass *createX86PeepholeOptimizerPass();
+/// createX86GlobalBaseRegPass - This pass initializes a global base
+/// register for PIC on x86-32.
+FunctionPass* createX86GlobalBaseRegPass();
 
-/// 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();
+/// createCleanupLocalDynamicTLSPass() - This pass combines multiple accesses
+/// to local-dynamic TLS variables so that the TLS base address for the module
+/// is only fetched once per execution path through the function.
+FunctionPass *createCleanupLocalDynamicTLSPass();
 
 /// createX86FloatingPointStackifierPass - This function returns a pass which
 /// converts floating point register references and pseudo instructions into
@@ -62,12 +44,10 @@ FunctionPass *createX86FloatingPointKillerPass();
 ///
 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.
-///
-FunctionPass *createX86CodePrinterPass(std::ostream &o,TargetMachine &tm);
+/// createX86IssueVZeroUpperPass - This pass inserts AVX vzeroupper instructions
+/// before each call to avoid transition penalty between functions encoded with
+/// AVX and SSE.
+FunctionPass *createX86IssueVZeroUpperPass();
 
 /// createX86EmitCodeToMemory - Returns a pass that converts a register
 /// allocated function into raw machine code in a dynamically
@@ -75,15 +55,26 @@ FunctionPass *createX86CodePrinterPass(std::ostream &o,TargetMachine &tm);
 ///
 FunctionPass *createEmitX86CodeToMemory();
 
-} // End llvm namespace
+/// createX86PadShortFunctions - Return a pass that pads short functions
+/// with NOOPs. This will prevent a stall when returning on the Atom.
+FunctionPass *createX86PadShortFunctions();
+/// createX86FixupLEAs - Return a a pass that selectively replaces
+/// certain instructions (like add, sub, inc, dec, some shifts,
+/// and some multiplies) by equivalent LEA instructions, in order
+/// to eliminate execution delays in some Atom processors.
+FunctionPass *createX86FixupLEAs();
+
+/// createX86CallFrameOptimization - Return a pass that optimizes
+/// the code-size of x86 call sequences. This is done by replacing
+/// esp-relative movs with pushes.
+FunctionPass *createX86CallFrameOptimization();
+
+/// createX86WinEHStatePass - Return an IR pass that inserts EH registration
+/// stack objects and explicit EH state updates. This pass must run after EH
+/// preparation, which does Windows-specific but architecture-neutral
+/// preparation.
+FunctionPass *createX86WinEHStatePass();
 
-// Defines symbolic names for X86 registers.  This defines a mapping from
-// register name to register number.
-//
-#include "X86GenRegisterNames.inc"
-
-// Defines symbolic names for the X86 instructions.
-//
-#include "X86GenInstrNames.inc"
+} // End llvm namespace
 
 #endif