mirror of
https://github.com/c64scene-ar/llvm-6502.git
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98a366d547
which better identifies what the optimization is doing. And is more flexible for future uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
//===-- SPU.h - Top-level interface for Cell SPU Target ----------*- C++ -*-==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the entry points for global functions defined in the LLVM
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// Cell SPU back-end.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TARGET_IBMCELLSPU_H
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#define LLVM_TARGET_IBMCELLSPU_H
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#include "llvm/Support/DataTypes.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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class SPUTargetMachine;
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class FunctionPass;
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class raw_ostream;
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FunctionPass *createSPUISelDag(SPUTargetMachine &TM);
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FunctionPass *createSPUAsmPrinterPass(raw_ostream &o,
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SPUTargetMachine &tm,
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CodeGenOpt::Level OptLevel,
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bool verbose);
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/*--== Utility functions/predicates/etc used all over the place: --==*/
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//! Predicate test for a signed 10-bit value
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/*!
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\param Value The input value to be tested
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This predicate tests for a signed 10-bit value, returning the 10-bit value
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as a short if true.
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*/
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template<typename T>
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inline bool isS10Constant(T Value);
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template<>
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inline bool isS10Constant<short>(short Value) {
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int SExtValue = ((int) Value << (32 - 10)) >> (32 - 10);
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return ((Value > 0 && Value <= (1 << 9) - 1)
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|| (Value < 0 && (short) SExtValue == Value));
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}
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template<>
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inline bool isS10Constant<int>(int Value) {
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return (Value >= -(1 << 9) && Value <= (1 << 9) - 1);
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}
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template<>
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inline bool isS10Constant<uint32_t>(uint32_t Value) {
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return (Value <= ((1 << 9) - 1));
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}
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template<>
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inline bool isS10Constant<int64_t>(int64_t Value) {
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return (Value >= -(1 << 9) && Value <= (1 << 9) - 1);
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}
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template<>
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inline bool isS10Constant<uint64_t>(uint64_t Value) {
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return (Value <= ((1 << 9) - 1));
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}
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//! Predicate test for an unsigned 10-bit value
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/*!
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\param Value The input value to be tested
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This predicate tests for an unsigned 10-bit value, returning the 10-bit value
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as a short if true.
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*/
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inline bool isU10Constant(short Value) {
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return (Value == (Value & 0x3ff));
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}
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inline bool isU10Constant(int Value) {
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return (Value == (Value & 0x3ff));
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}
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inline bool isU10Constant(uint32_t Value) {
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return (Value == (Value & 0x3ff));
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}
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inline bool isU10Constant(int64_t Value) {
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return (Value == (Value & 0x3ff));
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}
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inline bool isU10Constant(uint64_t Value) {
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return (Value == (Value & 0x3ff));
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}
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}
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// Defines symbolic names for the SPU instructions.
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//
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#include "SPUGenInstrNames.inc"
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#endif /* LLVM_TARGET_IBMCELLSPU_H */
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