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			82 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			TableGen
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			TableGen
		
	
	
	
	
	
| //===- PPC.td - Describe the PowerPC Target Machine --------*- tablegen -*-===//
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| // 
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file was developed by the LLVM research group and is distributed under
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| // the University of Illinois Open Source License. See LICENSE.TXT for details.
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| // 
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| //===----------------------------------------------------------------------===//
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| //
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| // This is the top level entry point for the PowerPC target.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| // Get the target-independent interfaces which we are implementing.
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| //
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| include "../Target.td"
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| 
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| //===----------------------------------------------------------------------===//
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| // PowerPC Subtarget features.
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| //
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|  
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| def Feature64Bit     : SubtargetFeature<"64bit", "bool", "Is64Bit",
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|                                         "Enable 64-bit instructions">;
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| def Feature64BitRegs : SubtargetFeature<"64bitregs", "bool", "Has64BitRegs",
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|                                         "Enable 64-bit registers [beta]">;
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| def FeatureAltivec   : SubtargetFeature<"altivec", "bool", "HasAltivec",
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|                                         "Enable Altivec instructions">;
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| def FeatureGPUL      : SubtargetFeature<"gpul", "bool", "IsGigaProcessor",
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|                                         "Enable GPUL instructions">;
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| def FeatureFSqrt     : SubtargetFeature<"fsqrt", "bool", "HasFSQRT",
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|                                         "Enable the fsqrt instruction">; 
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| 
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| //===----------------------------------------------------------------------===//
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| // Register File Description
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| //===----------------------------------------------------------------------===//
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| 
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| include "PPCRegisterInfo.td"
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| include "PPCSchedule.td"
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| include "PPCInstrInfo.td"
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| 
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| //===----------------------------------------------------------------------===//
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| // PowerPC processors supported.
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| //
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| 
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| def : Processor<"generic", G3Itineraries, []>;
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| def : Processor<"601", G3Itineraries, []>;
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| def : Processor<"602", G3Itineraries, []>;
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| def : Processor<"603", G3Itineraries, []>;
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| def : Processor<"603e", G3Itineraries, []>;
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| def : Processor<"603ev", G3Itineraries, []>;
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| def : Processor<"604", G3Itineraries, []>;
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| def : Processor<"604e", G3Itineraries, []>;
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| def : Processor<"620", G3Itineraries, []>;
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| def : Processor<"g3", G3Itineraries, []>;
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| def : Processor<"7400", G4Itineraries, [FeatureAltivec]>;
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| def : Processor<"g4", G4Itineraries, [FeatureAltivec]>;
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| def : Processor<"7450", G4PlusItineraries, [FeatureAltivec]>;
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| def : Processor<"g4+", G4PlusItineraries, [FeatureAltivec]>;
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| def : Processor<"750", G3Itineraries, []>;
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| def : Processor<"970", G5Itineraries,
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|                   [FeatureAltivec, FeatureGPUL, FeatureFSqrt,
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|                    Feature64Bit /*, Feature64BitRegs */]>;
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| def : Processor<"g5", G5Itineraries,
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|                   [FeatureAltivec, FeatureGPUL, FeatureFSqrt,
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|                    Feature64Bit /*, Feature64BitRegs */]>;
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| 
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| 
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| def PPC : Target {
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|   // Pointers on PPC are 32-bits in size.
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|   let PointerType = i32;
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| 
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|   // According to the Mach-O Runtime ABI, these regs are nonvolatile across
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|   // calls
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|   let CalleeSavedRegisters = [R1, R13, R14, R15, R16, R17, R18, R19,
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|     R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31, F14, F15,
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|     F16, F17, F18, F19, F20, F21, F22, F23, F24, F25, F26, F27, F28, F29,
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|     F30, F31, CR2, CR3, CR4, LR];
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| 
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|   // Pull in Instruction Info:
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|   let InstructionSet = PowerPCInstrInfo;
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| }
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