X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FX86%2FX86.h;h=202581972528889fab15b067cd9b75c312a36392;hb=875710a2fd6b3c4f814961582594bd5c1cdb493a;hp=210d0268bf8faaca528f023133741567cf25152b;hpb=9b2f25e3132524166d7669d52fffd6c6b6eaaf44;p=oota-llvm.git diff --git a/lib/Target/X86/X86.h b/lib/Target/X86/X86.h index 210d0268bf8..20258197252 100644 --- a/lib/Target/X86/X86.h +++ b/lib/Target/X86/X86.h @@ -15,31 +15,32 @@ #ifndef TARGET_X86_H #define TARGET_X86_H -#include "llvm/Target/TargetMachine.h" +#include "llvm/Support/CodeGen.h" namespace llvm { class FunctionPass; -class JITCodeEmitter; -class MCCodeEmitter; -class MCContext; -class MCObjectWriter; -class MachineCodeEmitter; -class Target; -class TargetAsmBackend; +class ImmutablePass; class X86TargetMachine; -class formatted_raw_ostream; -class raw_ostream; -/// createX86ISelDag - This pass converts a legalized DAG into a +/// createX86AtomicExpandPass - This pass expands atomic operations that cannot +/// be handled natively in terms of a loop using cmpxchg. +FunctionPass *createX86AtomicExpandPass(const X86TargetMachine *TM); + +/// createX86ISelDag - This pass converts a legalized DAG into a /// X86-specific DAG, ready for instruction scheduling. /// FunctionPass *createX86ISelDag(X86TargetMachine &TM, CodeGenOpt::Level OptLevel); -/// createGlobalBaseRegPass - This pass initializes a global base +/// createX86GlobalBaseRegPass - This pass initializes a global base /// register for PIC on x86-32. -FunctionPass* createGlobalBaseRegPass(); +FunctionPass* createX86GlobalBaseRegPass(); + +/// 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 @@ -47,22 +48,10 @@ FunctionPass* createGlobalBaseRegPass(); /// FunctionPass *createX86FloatingPointStackifierPass(); -/// createSSEDomainFixPass - This pass twiddles SSE opcodes to prevent domain -/// crossings. -FunctionPass *createSSEDomainFixPass(); - -/// createX86CodeEmitterPass - Return a pass that emits the collected X86 code -/// to the specified MCE object. -FunctionPass *createX86JITCodeEmitterPass(X86TargetMachine &TM, - JITCodeEmitter &JCE); - -MCCodeEmitter *createX86_32MCCodeEmitter(const Target &, TargetMachine &TM, - MCContext &Ctx); -MCCodeEmitter *createX86_64MCCodeEmitter(const Target &, TargetMachine &TM, - MCContext &Ctx); - -TargetAsmBackend *createX86_32AsmBackend(const Target &, const std::string &); -TargetAsmBackend *createX86_64AsmBackend(const Target &, const std::string &); +/// 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 @@ -70,30 +59,18 @@ TargetAsmBackend *createX86_64AsmBackend(const Target &, const std::string &); /// FunctionPass *createEmitX86CodeToMemory(); -/// createX86MaxStackAlignmentHeuristicPass - This function returns a pass -/// which determines whether the frame pointer register should be -/// reserved in case dynamic stack alignment is later required. -/// -FunctionPass *createX86MaxStackAlignmentHeuristicPass(); - - -/// createX86MachObjectWriter - Construct an X86 Mach-O object writer. -MCObjectWriter *createX86MachObjectWriter(raw_ostream &OS, - bool Is64Bit, - uint32_t CPUType, - uint32_t CPUSubtype); +/// \brief Creates an X86-specific Target Transformation Info pass. +ImmutablePass *createX86TargetTransformInfoPass(const X86TargetMachine *TM); -extern Target TheX86_32Target, TheX86_64Target; +/// 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(); } // End llvm namespace -// 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" - #endif