forked from OSchip/llvm-project
Add scheduling information for the MBlaze backend.
llvm-svn: 129311
This commit is contained in:
Wesley Peck
parent
64749f2a89
commit
1914c39bd4
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@ -31,49 +31,28 @@ def MBlazeInstrInfo : InstrInfo;
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// Microblaze Subtarget features //
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//===----------------------------------------------------------------------===//
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def FeaturePipe3 : SubtargetFeature<"pipe3", "HasPipe3", "true",
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"Implements 3-stage pipeline">;
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def FeatureBarrel : SubtargetFeature<"barrel", "HasBarrel", "true",
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"Implements barrel shifter">;
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def FeatureDiv : SubtargetFeature<"div", "HasDiv", "true",
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"Implements hardware divider">;
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def FeatureMul : SubtargetFeature<"mul", "HasMul", "true",
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"Implements hardware multiplier">;
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def FeatureFSL : SubtargetFeature<"fsl", "HasFSL", "true",
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"Implements FSL instructions">;
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def FeatureEFSL : SubtargetFeature<"efsl", "HasEFSL", "true",
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"Implements extended FSL instructions">;
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def FeatureMSRSet : SubtargetFeature<"msrset", "HasMSRSet", "true",
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"Implements MSR register set and clear">;
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def FeatureException : SubtargetFeature<"exception", "HasException", "true",
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"Implements hardware exception support">;
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def FeaturePatCmp : SubtargetFeature<"patcmp", "HasPatCmp", "true",
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"Implements pattern compare instruction">;
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def FeatureFPU : SubtargetFeature<"fpu", "HasFPU", "true",
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"Implements floating point unit">;
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def FeatureESR : SubtargetFeature<"esr", "HasESR", "true",
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"Implements ESR and EAR registers">;
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def FeaturePVR : SubtargetFeature<"pvr", "HasPVR", "true",
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"Implements processor version register">;
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def FeatureMul64 : SubtargetFeature<"mul64", "HasMul64", "true",
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"Implements multiplier with 64-bit result">;
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def FeatureSqrt : SubtargetFeature<"sqrt", "HasSqrt", "true",
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"Implements sqrt and floating point convert">;
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def FeatureMMU : SubtargetFeature<"mmu", "HasMMU", "true",
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"Implements memory management unit">;
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//===----------------------------------------------------------------------===//
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// MBlaze processors supported.
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//===----------------------------------------------------------------------===//
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class Proc<string Name, list<SubtargetFeature> Features>
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: Processor<Name, MBlazeGenericItineraries, Features>;
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def : Proc<"v400", []>;
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def : Proc<"v500", []>;
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def : Proc<"v600", []>;
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def : Proc<"v700", []>;
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def : Proc<"v710", []>;
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def : Processor<"mblaze", MBlazeGenericItineraries, []>;
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def : Processor<"mblaze3", MBlazePipe3Itineraries, []>;
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def : Processor<"mblaze5", MBlazePipe5Itineraries, []>;
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//===----------------------------------------------------------------------===//
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// Instruction Descriptions
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@ -21,22 +21,22 @@
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class LoadFM<bits<6> op, string instr_asm, PatFrag OpNode> :
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TA<op, 0x000, (outs GPR:$dst), (ins memrr:$addr),
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!strconcat(instr_asm, " $dst, $addr"),
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[(set (f32 GPR:$dst), (OpNode xaddr:$addr))], IILoad>;
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[(set (f32 GPR:$dst), (OpNode xaddr:$addr))], IIC_MEMl>;
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class LoadFMI<bits<6> op, string instr_asm, PatFrag OpNode> :
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TB<op, (outs GPR:$dst), (ins memri:$addr),
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!strconcat(instr_asm, " $dst, $addr"),
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[(set (f32 GPR:$dst), (OpNode iaddr:$addr))], IILoad>;
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[(set (f32 GPR:$dst), (OpNode iaddr:$addr))], IIC_MEMl>;
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class StoreFM<bits<6> op, string instr_asm, PatFrag OpNode> :
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TA<op, 0x000, (outs), (ins GPR:$dst, memrr:$addr),
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!strconcat(instr_asm, " $dst, $addr"),
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[(OpNode (f32 GPR:$dst), xaddr:$addr)], IIStore>;
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[(OpNode (f32 GPR:$dst), xaddr:$addr)], IIC_MEMs>;
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class StoreFMI<bits<6> op, string instr_asm, PatFrag OpNode> :
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TB<op, (outs), (ins GPR:$dst, memrr:$addr),
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!strconcat(instr_asm, " $dst, $addr"),
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[(OpNode (f32 GPR:$dst), iaddr:$addr)], IIStore>;
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[(OpNode (f32 GPR:$dst), iaddr:$addr)], IIC_MEMs>;
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class ArithF<bits<6> op, bits<11> flags, string instr_asm, SDNode OpNode,
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InstrItinClass itin> :
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@ -56,15 +56,10 @@ class ArithFR<bits<6> op, bits<11> flags, string instr_asm, SDNode OpNode,
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!strconcat(instr_asm, " $dst, $c, $b"),
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[(set GPR:$dst, (OpNode GPR:$b, GPR:$c))], itin>;
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class LogicF<bits<6> op, string instr_asm> :
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TB<op, (outs GPR:$dst), (ins GPR:$b, GPR:$c),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[], IIAlu>;
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class LogicFI<bits<6> op, string instr_asm> :
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TB<op, (outs GPR:$dst), (ins GPR:$b, fimm:$c),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[], IIAlu>;
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[], IIC_ALU>;
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let rb=0 in {
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class ArithF2<bits<6> op, bits<11> flags, string instr_asm,
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@ -95,10 +90,10 @@ let rb=0 in {
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//===----------------------------------------------------------------------===//
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let Predicates=[HasFPU] in {
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def FORI : LogicFI<0x28, "ori ">;
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def FADD : ArithF<0x16, 0x000, "fadd ", fadd, IIAlu>;
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def FRSUB : ArithFR<0x16, 0x080, "frsub ", fsub, IIAlu>;
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def FMUL : ArithF<0x16, 0x100, "fmul ", fmul, IIAlu>;
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def FDIV : ArithF<0x16, 0x180, "fdiv ", fdiv, IIAlu>;
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def FADD : ArithF<0x16, 0x000, "fadd ", fadd, IIC_FPU>;
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def FRSUB : ArithFR<0x16, 0x080, "frsub ", fsub, IIC_FPU>;
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def FMUL : ArithF<0x16, 0x100, "fmul ", fmul, IIC_FPU>;
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def FDIV : ArithF<0x16, 0x180, "fdiv ", fdiv, IIC_FPUd>;
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}
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let Predicates=[HasFPU], isCodeGenOnly=1 in {
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@ -110,19 +105,19 @@ let Predicates=[HasFPU], isCodeGenOnly=1 in {
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}
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let Predicates=[HasFPU,HasSqrt] in {
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def FLT : ArithIF<0x16, 0x280, "flt ", IIAlu>;
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def FINT : ArithFI<0x16, 0x300, "fint ", IIAlu>;
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def FSQRT : ArithF2<0x16, 0x380, "fsqrt ", IIAlu>;
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def FLT : ArithIF<0x16, 0x280, "flt ", IIC_FPUf>;
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def FINT : ArithFI<0x16, 0x300, "fint ", IIC_FPUi>;
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def FSQRT : ArithF2<0x16, 0x380, "fsqrt ", IIC_FPUs>;
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}
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let isAsCheapAsAMove = 1 in {
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def FCMP_UN : CmpFN<0x16, 0x200, "fcmp.un", IIAlu>;
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def FCMP_LT : CmpFN<0x16, 0x210, "fcmp.lt", IIAlu>;
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def FCMP_EQ : CmpFN<0x16, 0x220, "fcmp.eq", IIAlu>;
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def FCMP_LE : CmpFN<0x16, 0x230, "fcmp.le", IIAlu>;
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def FCMP_GT : CmpFN<0x16, 0x240, "fcmp.gt", IIAlu>;
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def FCMP_NE : CmpFN<0x16, 0x250, "fcmp.ne", IIAlu>;
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def FCMP_GE : CmpFN<0x16, 0x260, "fcmp.ge", IIAlu>;
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def FCMP_UN : CmpFN<0x16, 0x200, "fcmp.un", IIC_FPUc>;
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def FCMP_LT : CmpFN<0x16, 0x210, "fcmp.lt", IIC_FPUc>;
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def FCMP_EQ : CmpFN<0x16, 0x220, "fcmp.eq", IIC_FPUc>;
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def FCMP_LE : CmpFN<0x16, 0x230, "fcmp.le", IIC_FPUc>;
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def FCMP_GT : CmpFN<0x16, 0x240, "fcmp.gt", IIC_FPUc>;
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def FCMP_NE : CmpFN<0x16, 0x250, "fcmp.ne", IIC_FPUc>;
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def FCMP_GE : CmpFN<0x16, 0x260, "fcmp.ge", IIC_FPUc>;
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}
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@ -13,7 +13,7 @@
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class FSLGet<bits<6> op, bits<5> flags, string instr_asm, Intrinsic OpNode> :
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MBlazeInst<op, FRCX, (outs GPR:$dst), (ins fslimm:$b),
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!strconcat(instr_asm, " $dst, $b"),
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[(set GPR:$dst, (OpNode immZExt4:$b))],IIAlu>
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[(set GPR:$dst, (OpNode immZExt4:$b))],IIC_FSLg>
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{
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bits<5> rd;
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bits<4> fslno;
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@ -29,7 +29,7 @@ class FSLGet<bits<6> op, bits<5> flags, string instr_asm, Intrinsic OpNode> :
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class FSLGetD<bits<6> op, bits<5> flags, string instr_asm, Intrinsic OpNode> :
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MBlazeInst<op, FRCR, (outs GPR:$dst), (ins GPR:$b),
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!strconcat(instr_asm, " $dst, $b"),
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[(set GPR:$dst, (OpNode GPR:$b))], IIAlu>
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[(set GPR:$dst, (OpNode GPR:$b))], IIC_FSLg>
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{
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bits<5> rd;
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bits<5> rb;
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@ -45,7 +45,7 @@ class FSLGetD<bits<6> op, bits<5> flags, string instr_asm, Intrinsic OpNode> :
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class FSLPut<bits<6> op, bits<4> flags, string instr_asm, Intrinsic OpNode> :
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MBlazeInst<op, FCRCX, (outs), (ins GPR:$v, fslimm:$b),
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!strconcat(instr_asm, " $v, $b"),
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[(OpNode GPR:$v, immZExt4:$b)], IIAlu>
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[(OpNode GPR:$v, immZExt4:$b)], IIC_FSLp>
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{
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bits<5> ra;
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bits<4> fslno;
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@ -61,7 +61,7 @@ class FSLPut<bits<6> op, bits<4> flags, string instr_asm, Intrinsic OpNode> :
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class FSLPutD<bits<6> op, bits<4> flags, string instr_asm, Intrinsic OpNode> :
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MBlazeInst<op, FCRR, (outs), (ins GPR:$v, GPR:$b),
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!strconcat(instr_asm, " $v, $b"),
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[(OpNode GPR:$v, GPR:$b)], IIAlu>
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[(OpNode GPR:$v, GPR:$b)], IIC_FSLp>
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{
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bits<5> ra;
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bits<5> rb;
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@ -77,7 +77,7 @@ class FSLPutD<bits<6> op, bits<4> flags, string instr_asm, Intrinsic OpNode> :
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class FSLPutT<bits<6> op, bits<4> flags, string instr_asm, Intrinsic OpNode> :
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MBlazeInst<op, FCX, (outs), (ins fslimm:$b),
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!strconcat(instr_asm, " $b"),
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[(OpNode immZExt4:$b)], IIAlu>
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[(OpNode immZExt4:$b)], IIC_FSLp>
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{
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bits<4> fslno;
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@ -92,7 +92,7 @@ class FSLPutT<bits<6> op, bits<4> flags, string instr_asm, Intrinsic OpNode> :
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class FSLPutTD<bits<6> op, bits<4> flags, string instr_asm, Intrinsic OpNode> :
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MBlazeInst<op, FCR, (outs), (ins GPR:$b),
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!strconcat(instr_asm, " $b"),
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[(OpNode GPR:$b)], IIAlu>
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[(OpNode GPR:$b)], IIC_FSLp>
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{
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bits<5> rb;
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@ -81,7 +81,7 @@ class MBlazeInst<bits<6> op, Format form, dag outs, dag ins, string asmstr,
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// Pseudo instruction class
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//===----------------------------------------------------------------------===//
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class MBlazePseudo<dag outs, dag ins, string asmstr, list<dag> pattern>:
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MBlazeInst<0x0, FPseudo, outs, ins, asmstr, pattern, IIPseudo>;
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MBlazeInst<0x0, FPseudo, outs, ins, asmstr, pattern, IIC_Pseudo>;
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//===----------------------------------------------------------------------===//
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// Type A instruction class in MBlaze : <|opcode|rd|ra|rb|flags|>
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@ -17,6 +17,8 @@
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/CodeGen/MachineInstrBuilder.h"
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#include "llvm/CodeGen/MachineRegisterInfo.h"
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#include "llvm/CodeGen/ScoreboardHazardRecognizer.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "MBlazeGenInstrInfo.inc"
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@ -261,7 +261,6 @@ public:
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virtual bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond)
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const;
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virtual void copyPhysReg(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I, DebugLoc DL,
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unsigned DestReg, unsigned SrcReg,
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@ -47,22 +47,22 @@ def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MBCallSeqEnd,
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//===----------------------------------------------------------------------===//
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// MBlaze Instruction Predicate Definitions.
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//===----------------------------------------------------------------------===//
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def HasPipe3 : Predicate<"Subtarget.hasPipe3()">;
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// def HasPipe3 : Predicate<"Subtarget.hasPipe3()">;
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def HasBarrel : Predicate<"Subtarget.hasBarrel()">;
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def NoBarrel : Predicate<"!Subtarget.hasBarrel()">;
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// def NoBarrel : Predicate<"!Subtarget.hasBarrel()">;
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def HasDiv : Predicate<"Subtarget.hasDiv()">;
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def HasMul : Predicate<"Subtarget.hasMul()">;
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def HasFSL : Predicate<"Subtarget.hasFSL()">;
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def HasEFSL : Predicate<"Subtarget.hasEFSL()">;
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def HasMSRSet : Predicate<"Subtarget.hasMSRSet()">;
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def HasException : Predicate<"Subtarget.hasException()">;
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// def HasFSL : Predicate<"Subtarget.hasFSL()">;
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// def HasEFSL : Predicate<"Subtarget.hasEFSL()">;
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// def HasMSRSet : Predicate<"Subtarget.hasMSRSet()">;
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// def HasException : Predicate<"Subtarget.hasException()">;
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def HasPatCmp : Predicate<"Subtarget.hasPatCmp()">;
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def HasFPU : Predicate<"Subtarget.hasFPU()">;
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def HasESR : Predicate<"Subtarget.hasESR()">;
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def HasPVR : Predicate<"Subtarget.hasPVR()">;
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// def HasESR : Predicate<"Subtarget.hasESR()">;
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// def HasPVR : Predicate<"Subtarget.hasPVR()">;
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def HasMul64 : Predicate<"Subtarget.hasMul64()">;
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def HasSqrt : Predicate<"Subtarget.hasSqrt()">;
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def HasMMU : Predicate<"Subtarget.hasMMU()">;
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// def HasMMU : Predicate<"Subtarget.hasMMU()">;
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//===----------------------------------------------------------------------===//
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// MBlaze Operand, Complex Patterns and Transformations Definitions.
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@ -170,18 +170,18 @@ class ArithI<bits<6> op, string instr_asm, SDNode OpNode,
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Operand Od, PatLeaf imm_type> :
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TB<op, (outs GPR:$dst), (ins GPR:$b, Od:$c),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[(set GPR:$dst, (OpNode GPR:$b, imm_type:$c))], IIAlu>;
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[(set GPR:$dst, (OpNode GPR:$b, imm_type:$c))], IIC_ALU>;
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class ArithI32<bits<6> op, string instr_asm,Operand Od, PatLeaf imm_type> :
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TB<op, (outs GPR:$dst), (ins GPR:$b, Od:$c),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[], IIAlu>;
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[], IIC_ALU>;
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class ShiftI<bits<6> op, bits<2> flags, string instr_asm, SDNode OpNode,
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Operand Od, PatLeaf imm_type> :
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SHT<op, flags, (outs GPR:$dst), (ins GPR:$b, Od:$c),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[(set GPR:$dst, (OpNode GPR:$b, imm_type:$c))], IIAlu>;
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[(set GPR:$dst, (OpNode GPR:$b, imm_type:$c))], IIC_SHT>;
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class ArithR<bits<6> op, bits<11> flags, string instr_asm, SDNode OpNode,
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InstrItinClass itin> :
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@ -193,7 +193,7 @@ class ArithRI<bits<6> op, string instr_asm, SDNode OpNode,
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Operand Od, PatLeaf imm_type> :
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TBR<op, (outs GPR:$dst), (ins Od:$b, GPR:$c),
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!strconcat(instr_asm, " $dst, $c, $b"),
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[(set GPR:$dst, (OpNode imm_type:$b, GPR:$c))], IIAlu>;
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[(set GPR:$dst, (OpNode imm_type:$b, GPR:$c))], IIC_ALU>;
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class ArithN<bits<6> op, bits<11> flags, string instr_asm,
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InstrItinClass itin> :
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@ -204,7 +204,7 @@ class ArithN<bits<6> op, bits<11> flags, string instr_asm,
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class ArithNI<bits<6> op, string instr_asm,Operand Od, PatLeaf imm_type> :
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TB<op, (outs GPR:$dst), (ins GPR:$b, Od:$c),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[], IIAlu>;
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[], IIC_ALU>;
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class ArithRN<bits<6> op, bits<11> flags, string instr_asm,
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InstrItinClass itin> :
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@ -215,7 +215,7 @@ class ArithRN<bits<6> op, bits<11> flags, string instr_asm,
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class ArithRNI<bits<6> op, string instr_asm,Operand Od, PatLeaf imm_type> :
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TBR<op, (outs GPR:$dst), (ins Od:$c, GPR:$b),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[], IIAlu>;
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[], IIC_ALU>;
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//===----------------------------------------------------------------------===//
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// Misc Arithmetic Instructions
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@ -224,23 +224,23 @@ class ArithRNI<bits<6> op, string instr_asm,Operand Od, PatLeaf imm_type> :
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class Logic<bits<6> op, bits<11> flags, string instr_asm, SDNode OpNode> :
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TA<op, flags, (outs GPR:$dst), (ins GPR:$b, GPR:$c),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[(set GPR:$dst, (OpNode GPR:$b, GPR:$c))], IIAlu>;
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[(set GPR:$dst, (OpNode GPR:$b, GPR:$c))], IIC_ALU>;
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class LogicI<bits<6> op, string instr_asm, SDNode OpNode> :
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TB<op, (outs GPR:$dst), (ins GPR:$b, uimm16:$c),
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!strconcat(instr_asm, " $dst, $b, $c"),
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[(set GPR:$dst, (OpNode GPR:$b, immZExt16:$c))],
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IIAlu>;
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IIC_ALU>;
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class LogicI32<bits<6> op, string instr_asm> :
|
||||
TB<op, (outs GPR:$dst), (ins GPR:$b, uimm16:$c),
|
||||
!strconcat(instr_asm, " $dst, $b, $c"),
|
||||
[], IIAlu>;
|
||||
[], IIC_ALU>;
|
||||
|
||||
class PatCmp<bits<6> op, bits<11> flags, string instr_asm> :
|
||||
TA<op, flags, (outs GPR:$dst), (ins GPR:$b, GPR:$c),
|
||||
!strconcat(instr_asm, " $dst, $b, $c"),
|
||||
[], IIAlu>;
|
||||
[], IIC_ALU>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Memory Access Instructions
|
||||
|
|
@ -248,22 +248,22 @@ class PatCmp<bits<6> op, bits<11> flags, string instr_asm> :
|
|||
class LoadM<bits<6> op, bits<11> flags, string instr_asm> :
|
||||
TA<op, flags, (outs GPR:$dst), (ins memrr:$addr),
|
||||
!strconcat(instr_asm, " $dst, $addr"),
|
||||
[], IILoad>;
|
||||
[], IIC_MEMl>;
|
||||
|
||||
class LoadMI<bits<6> op, string instr_asm, PatFrag OpNode> :
|
||||
TB<op, (outs GPR:$dst), (ins memri:$addr),
|
||||
!strconcat(instr_asm, " $dst, $addr"),
|
||||
[(set (i32 GPR:$dst), (OpNode iaddr:$addr))], IILoad>;
|
||||
[(set (i32 GPR:$dst), (OpNode iaddr:$addr))], IIC_MEMl>;
|
||||
|
||||
class StoreM<bits<6> op, bits<11> flags, string instr_asm> :
|
||||
TA<op, flags, (outs), (ins GPR:$dst, memrr:$addr),
|
||||
!strconcat(instr_asm, " $dst, $addr"),
|
||||
[], IIStore>;
|
||||
[], IIC_MEMs>;
|
||||
|
||||
class StoreMI<bits<6> op, string instr_asm, PatFrag OpNode> :
|
||||
TB<op, (outs), (ins GPR:$dst, memri:$addr),
|
||||
!strconcat(instr_asm, " $dst, $addr"),
|
||||
[(OpNode (i32 GPR:$dst), iaddr:$addr)], IIStore>;
|
||||
[(OpNode (i32 GPR:$dst), iaddr:$addr)], IIC_MEMs>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Branch Instructions
|
||||
|
|
@ -271,7 +271,7 @@ class StoreMI<bits<6> op, string instr_asm, PatFrag OpNode> :
|
|||
class Branch<bits<6> op, bits<5> br, bits<11> flags, string instr_asm> :
|
||||
TA<op, flags, (outs), (ins GPR:$target),
|
||||
!strconcat(instr_asm, " $target"),
|
||||
[], IIBranch> {
|
||||
[], IIC_BR> {
|
||||
let rd = 0x0;
|
||||
let ra = br;
|
||||
let Form = FCCR;
|
||||
|
|
@ -280,7 +280,7 @@ class Branch<bits<6> op, bits<5> br, bits<11> flags, string instr_asm> :
|
|||
class BranchI<bits<6> op, bits<5> br, string instr_asm> :
|
||||
TB<op, (outs), (ins brtarget:$target),
|
||||
!strconcat(instr_asm, " $target"),
|
||||
[], IIBranch> {
|
||||
[], IIC_BR> {
|
||||
let rd = 0;
|
||||
let ra = br;
|
||||
let Form = FCCI;
|
||||
|
|
@ -292,7 +292,7 @@ class BranchI<bits<6> op, bits<5> br, string instr_asm> :
|
|||
class BranchL<bits<6> op, bits<5> br, bits<11> flags, string instr_asm> :
|
||||
TA<op, flags, (outs), (ins GPR:$link, GPR:$target, variable_ops),
|
||||
!strconcat(instr_asm, " $link, $target"),
|
||||
[], IIBranch> {
|
||||
[], IIC_BRl> {
|
||||
let ra = br;
|
||||
let Form = FRCR;
|
||||
}
|
||||
|
|
@ -300,7 +300,7 @@ class BranchL<bits<6> op, bits<5> br, bits<11> flags, string instr_asm> :
|
|||
class BranchLI<bits<6> op, bits<5> br, string instr_asm> :
|
||||
TB<op, (outs), (ins GPR:$link, calltarget:$target, variable_ops),
|
||||
!strconcat(instr_asm, " $link, $target"),
|
||||
[], IIBranch> {
|
||||
[], IIC_BRl> {
|
||||
let ra = br;
|
||||
let Form = FRCI;
|
||||
}
|
||||
|
|
@ -312,7 +312,7 @@ class BranchC<bits<6> op, bits<5> br, bits<11> flags, string instr_asm> :
|
|||
TA<op, flags, (outs),
|
||||
(ins GPR:$a, GPR:$b),
|
||||
!strconcat(instr_asm, " $a, $b"),
|
||||
[], IIBranch> {
|
||||
[], IIC_BRc> {
|
||||
let rd = br;
|
||||
let Form = FCRR;
|
||||
}
|
||||
|
|
@ -320,7 +320,7 @@ class BranchC<bits<6> op, bits<5> br, bits<11> flags, string instr_asm> :
|
|||
class BranchCI<bits<6> op, bits<5> br, string instr_asm> :
|
||||
TB<op, (outs), (ins GPR:$a, brtarget:$offset),
|
||||
!strconcat(instr_asm, " $a, $offset"),
|
||||
[], IIBranch> {
|
||||
[], IIC_BRc> {
|
||||
let rd = br;
|
||||
let Form = FCRI;
|
||||
}
|
||||
|
|
@ -330,71 +330,74 @@ class BranchCI<bits<6> op, bits<5> br, string instr_asm> :
|
|||
//===----------------------------------------------------------------------===//
|
||||
|
||||
let isCommutable = 1, isAsCheapAsAMove = 1 in {
|
||||
def ADDK : Arith<0x04, 0x000, "addk ", add, IIAlu>;
|
||||
def ADDK : Arith<0x04, 0x000, "addk ", add, IIC_ALU>;
|
||||
def AND : Logic<0x21, 0x000, "and ", and>;
|
||||
def OR : Logic<0x20, 0x000, "or ", or>;
|
||||
def XOR : Logic<0x22, 0x000, "xor ", xor>;
|
||||
def PCMPBF : PatCmp<0x20, 0x400, "pcmpbf ">;
|
||||
def PCMPEQ : PatCmp<0x22, 0x400, "pcmpeq ">;
|
||||
def PCMPNE : PatCmp<0x23, 0x400, "pcmpne ">;
|
||||
|
||||
let Predicates=[HasPatCmp] in {
|
||||
def PCMPBF : PatCmp<0x20, 0x400, "pcmpbf ">;
|
||||
def PCMPEQ : PatCmp<0x22, 0x400, "pcmpeq ">;
|
||||
def PCMPNE : PatCmp<0x23, 0x400, "pcmpne ">;
|
||||
}
|
||||
|
||||
let Defs = [CARRY] in {
|
||||
def ADD : Arith<0x00, 0x000, "add ", addc, IIAlu>;
|
||||
def ADD : Arith<0x00, 0x000, "add ", addc, IIC_ALU>;
|
||||
|
||||
let Uses = [CARRY] in {
|
||||
def ADDC : Arith<0x02, 0x000, "addc ", adde, IIAlu>;
|
||||
def ADDC : Arith<0x02, 0x000, "addc ", adde, IIC_ALU>;
|
||||
}
|
||||
}
|
||||
|
||||
let Uses = [CARRY] in {
|
||||
def ADDKC : ArithN<0x06, 0x000, "addkc ", IIAlu>;
|
||||
def ADDKC : ArithN<0x06, 0x000, "addkc ", IIC_ALU>;
|
||||
}
|
||||
}
|
||||
|
||||
let isAsCheapAsAMove = 1 in {
|
||||
def ANDN : ArithN<0x23, 0x000, "andn ", IIAlu>;
|
||||
def CMP : ArithN<0x05, 0x001, "cmp ", IIAlu>;
|
||||
def CMPU : ArithN<0x05, 0x003, "cmpu ", IIAlu>;
|
||||
def RSUBK : ArithR<0x05, 0x000, "rsubk ", sub, IIAlu>;
|
||||
def ANDN : ArithN<0x23, 0x000, "andn ", IIC_ALU>;
|
||||
def CMP : ArithN<0x05, 0x001, "cmp ", IIC_ALU>;
|
||||
def CMPU : ArithN<0x05, 0x003, "cmpu ", IIC_ALU>;
|
||||
def RSUBK : ArithR<0x05, 0x000, "rsubk ", sub, IIC_ALU>;
|
||||
|
||||
let Defs = [CARRY] in {
|
||||
def RSUB : ArithR<0x01, 0x000, "rsub ", subc, IIAlu>;
|
||||
def RSUB : ArithR<0x01, 0x000, "rsub ", subc, IIC_ALU>;
|
||||
|
||||
let Uses = [CARRY] in {
|
||||
def RSUBC : ArithR<0x03, 0x000, "rsubc ", sube, IIAlu>;
|
||||
def RSUBC : ArithR<0x03, 0x000, "rsubc ", sube, IIC_ALU>;
|
||||
}
|
||||
}
|
||||
|
||||
let Uses = [CARRY] in {
|
||||
def RSUBKC : ArithRN<0x07, 0x000, "rsubkc ", IIAlu>;
|
||||
def RSUBKC : ArithRN<0x07, 0x000, "rsubkc ", IIC_ALU>;
|
||||
}
|
||||
}
|
||||
|
||||
let isCommutable = 1, Predicates=[HasMul] in {
|
||||
def MUL : Arith<0x10, 0x000, "mul ", mul, IIAlu>;
|
||||
def MUL : Arith<0x10, 0x000, "mul ", mul, IIC_ALUm>;
|
||||
}
|
||||
|
||||
let isCommutable = 1, Predicates=[HasMul,HasMul64] in {
|
||||
def MULH : Arith<0x10, 0x001, "mulh ", mulhs, IIAlu>;
|
||||
def MULHU : Arith<0x10, 0x003, "mulhu ", mulhu, IIAlu>;
|
||||
def MULH : Arith<0x10, 0x001, "mulh ", mulhs, IIC_ALUm>;
|
||||
def MULHU : Arith<0x10, 0x003, "mulhu ", mulhu, IIC_ALUm>;
|
||||
}
|
||||
|
||||
let Predicates=[HasMul,HasMul64] in {
|
||||
def MULHSU : ArithN<0x10, 0x002, "mulhsu ", IIAlu>;
|
||||
def MULHSU : ArithN<0x10, 0x002, "mulhsu ", IIC_ALUm>;
|
||||
}
|
||||
|
||||
let Predicates=[HasBarrel] in {
|
||||
def BSRL : Arith<0x11, 0x000, "bsrl ", srl, IIAlu>;
|
||||
def BSRA : Arith<0x11, 0x200, "bsra ", sra, IIAlu>;
|
||||
def BSLL : Arith<0x11, 0x400, "bsll ", shl, IIAlu>;
|
||||
def BSRL : Arith<0x11, 0x000, "bsrl ", srl, IIC_SHT>;
|
||||
def BSRA : Arith<0x11, 0x200, "bsra ", sra, IIC_SHT>;
|
||||
def BSLL : Arith<0x11, 0x400, "bsll ", shl, IIC_SHT>;
|
||||
def BSRLI : ShiftI<0x19, 0x0, "bsrli ", srl, uimm5, immZExt5>;
|
||||
def BSRAI : ShiftI<0x19, 0x1, "bsrai ", sra, uimm5, immZExt5>;
|
||||
def BSLLI : ShiftI<0x19, 0x2, "bslli ", shl, uimm5, immZExt5>;
|
||||
}
|
||||
|
||||
let Predicates=[HasDiv] in {
|
||||
def IDIV : ArithR<0x12, 0x000, "idiv ", sdiv, IIAlu>;
|
||||
def IDIVU : ArithR<0x12, 0x002, "idivu ", udiv, IIAlu>;
|
||||
def IDIV : ArithR<0x12, 0x000, "idiv ", sdiv, IIC_ALUd>;
|
||||
def IDIVU : ArithR<0x12, 0x002, "idivu ", udiv, IIC_ALUd>;
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
|
@ -552,7 +555,7 @@ let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1,
|
|||
def RTSD : TB<0x2D, (outs), (ins GPR:$target, simm16:$imm),
|
||||
"rtsd $target, $imm",
|
||||
[],
|
||||
IIBranch>;
|
||||
IIC_BR>;
|
||||
}
|
||||
|
||||
let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1,
|
||||
|
|
@ -560,7 +563,7 @@ let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1,
|
|||
def RTID : TB<0x2D, (outs), (ins GPR:$target, simm16:$imm),
|
||||
"rtid $target, $imm",
|
||||
[],
|
||||
IIBranch>;
|
||||
IIC_BR>;
|
||||
}
|
||||
|
||||
let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1,
|
||||
|
|
@ -568,7 +571,7 @@ let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1,
|
|||
def RTBD : TB<0x2D, (outs), (ins GPR:$target, simm16:$imm),
|
||||
"rtbd $target, $imm",
|
||||
[],
|
||||
IIBranch>;
|
||||
IIC_BR>;
|
||||
}
|
||||
|
||||
let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1,
|
||||
|
|
@ -576,7 +579,7 @@ let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1,
|
|||
def RTED : TB<0x2D, (outs), (ins GPR:$target, simm16:$imm),
|
||||
"rted $target, $imm",
|
||||
[],
|
||||
IIBranch>;
|
||||
IIC_BR>;
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
|
@ -584,7 +587,7 @@ let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1,
|
|||
//===----------------------------------------------------------------------===//
|
||||
|
||||
let neverHasSideEffects = 1 in {
|
||||
def NOP : MBlazeInst< 0x20, FC, (outs), (ins), "nop ", [], IIAlu>;
|
||||
def NOP : MBlazeInst< 0x20, FC, (outs), (ins), "nop ", [], IIC_ALU>;
|
||||
}
|
||||
|
||||
let usesCustomInserter = 1 in {
|
||||
|
|
@ -611,17 +614,17 @@ let usesCustomInserter = 1 in {
|
|||
|
||||
let rb = 0 in {
|
||||
def SEXT16 : TA<0x24, 0x061, (outs GPR:$dst), (ins GPR:$src),
|
||||
"sext16 $dst, $src", [], IIAlu>;
|
||||
"sext16 $dst, $src", [], IIC_ALU>;
|
||||
def SEXT8 : TA<0x24, 0x060, (outs GPR:$dst), (ins GPR:$src),
|
||||
"sext8 $dst, $src", [], IIAlu>;
|
||||
"sext8 $dst, $src", [], IIC_ALU>;
|
||||
let Defs = [CARRY] in {
|
||||
def SRL : TA<0x24, 0x041, (outs GPR:$dst), (ins GPR:$src),
|
||||
"srl $dst, $src", [], IIAlu>;
|
||||
"srl $dst, $src", [], IIC_ALU>;
|
||||
def SRA : TA<0x24, 0x001, (outs GPR:$dst), (ins GPR:$src),
|
||||
"sra $dst, $src", [], IIAlu>;
|
||||
"sra $dst, $src", [], IIC_ALU>;
|
||||
let Uses = [CARRY] in {
|
||||
def SRC : TA<0x24, 0x021, (outs GPR:$dst), (ins GPR:$src),
|
||||
"src $dst, $src", [], IIAlu>;
|
||||
"src $dst, $src", [], IIC_ALU>;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -637,36 +640,36 @@ let isCodeGenOnly=1 in {
|
|||
//===----------------------------------------------------------------------===//
|
||||
let Form=FRCS in {
|
||||
def MFS : SPC<0x25, 0x2, (outs GPR:$dst), (ins SPR:$src),
|
||||
"mfs $dst, $src", [], IIAlu>;
|
||||
"mfs $dst, $src", [], IIC_ALU>;
|
||||
}
|
||||
|
||||
let Form=FCRCS in {
|
||||
def MTS : SPC<0x25, 0x3, (outs SPR:$dst), (ins GPR:$src),
|
||||
"mts $dst, $src", [], IIAlu>;
|
||||
"mts $dst, $src", [], IIC_ALU>;
|
||||
}
|
||||
|
||||
def MSRSET : MSR<0x25, 0x20, (outs GPR:$dst), (ins uimm15:$set),
|
||||
"msrset $dst, $set", [], IIAlu>;
|
||||
"msrset $dst, $set", [], IIC_ALU>;
|
||||
|
||||
def MSRCLR : MSR<0x25, 0x22, (outs GPR:$dst), (ins uimm15:$clr),
|
||||
"msrclr $dst, $clr", [], IIAlu>;
|
||||
"msrclr $dst, $clr", [], IIC_ALU>;
|
||||
|
||||
let rd=0x0, Form=FCRR in {
|
||||
def WDC : TA<0x24, 0x64, (outs), (ins GPR:$a, GPR:$b),
|
||||
"wdc $a, $b", [], IIAlu>;
|
||||
"wdc $a, $b", [], IIC_WDC>;
|
||||
def WDCF : TA<0x24, 0x74, (outs), (ins GPR:$a, GPR:$b),
|
||||
"wdc.flush $a, $b", [], IIAlu>;
|
||||
"wdc.flush $a, $b", [], IIC_WDC>;
|
||||
def WDCC : TA<0x24, 0x66, (outs), (ins GPR:$a, GPR:$b),
|
||||
"wdc.clear $a, $b", [], IIAlu>;
|
||||
"wdc.clear $a, $b", [], IIC_WDC>;
|
||||
def WIC : TA<0x24, 0x68, (outs), (ins GPR:$a, GPR:$b),
|
||||
"wic $a, $b", [], IIAlu>;
|
||||
"wic $a, $b", [], IIC_WDC>;
|
||||
}
|
||||
|
||||
def BRK : BranchL<0x26, 0x0C, 0x000, "brk ">;
|
||||
def BRKI : BranchLI<0x2E, 0x0C, "brki ">;
|
||||
|
||||
def IMM : MBlazeInst<0x2C, FCCI, (outs), (ins simm16:$imm),
|
||||
"imm $imm", [], IIAlu>;
|
||||
"imm $imm", [], IIC_ALU>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Pseudo instructions for atomic operations
|
||||
|
|
@ -848,11 +851,6 @@ def : Pat<(MBWrapper tconstpool:$in), (ORI (i32 R0), tconstpool:$in)>;
|
|||
// Misc instructions
|
||||
def : Pat<(and (i32 GPR:$lh), (not (i32 GPR:$rh))),(ANDN GPR:$lh, GPR:$rh)>;
|
||||
|
||||
// Arithmetic with immediates
|
||||
def : Pat<(add (i32 GPR:$in), imm:$imm),(ADDIK GPR:$in, imm:$imm)>;
|
||||
def : Pat<(or (i32 GPR:$in), imm:$imm),(ORI GPR:$in, imm:$imm)>;
|
||||
def : Pat<(xor (i32 GPR:$in), imm:$imm),(XORI GPR:$in, imm:$imm)>;
|
||||
|
||||
// Convert any extend loads into zero extend loads
|
||||
def : Pat<(extloadi8 iaddr:$src), (i32 (LBUI iaddr:$src))>;
|
||||
def : Pat<(extloadi16 iaddr:$src), (i32 (LHUI iaddr:$src))>;
|
||||
|
|
|
|||
|
|
@ -85,18 +85,19 @@ let Namespace = "MBlaze" in {
|
|||
def RTLBX : MBlazeSPRReg<0x1002, "rtlbx">, DwarfRegNum<[41]>;
|
||||
def RTLBLO : MBlazeSPRReg<0x1003, "rtlblo">, DwarfRegNum<[42]>;
|
||||
def RTLBHI : MBlazeSPRReg<0x1004, "rtlbhi">, DwarfRegNum<[43]>;
|
||||
def RPVR0 : MBlazeSPRReg<0x2000, "rpvr0">, DwarfRegNum<[44]>;
|
||||
def RPVR1 : MBlazeSPRReg<0x2001, "rpvr1">, DwarfRegNum<[45]>;
|
||||
def RPVR2 : MBlazeSPRReg<0x2002, "rpvr2">, DwarfRegNum<[46]>;
|
||||
def RPVR3 : MBlazeSPRReg<0x2003, "rpvr3">, DwarfRegNum<[47]>;
|
||||
def RPVR4 : MBlazeSPRReg<0x2004, "rpvr4">, DwarfRegNum<[48]>;
|
||||
def RPVR5 : MBlazeSPRReg<0x2005, "rpvr5">, DwarfRegNum<[49]>;
|
||||
def RPVR6 : MBlazeSPRReg<0x2006, "rpvr6">, DwarfRegNum<[50]>;
|
||||
def RPVR7 : MBlazeSPRReg<0x2007, "rpvr7">, DwarfRegNum<[51]>;
|
||||
def RPVR8 : MBlazeSPRReg<0x2008, "rpvr8">, DwarfRegNum<[52]>;
|
||||
def RPVR9 : MBlazeSPRReg<0x2009, "rpvr9">, DwarfRegNum<[53]>;
|
||||
def RPVR10 : MBlazeSPRReg<0x200A, "rpvr10">, DwarfRegNum<[54]>;
|
||||
def RPVR11 : MBlazeSPRReg<0x200B, "rpvr11">, DwarfRegNum<[55]>;
|
||||
def RTLBSX : MBlazeSPRReg<0x1004, "rtlbsx">, DwarfRegNum<[44]>;
|
||||
def RPVR0 : MBlazeSPRReg<0x2000, "rpvr0">, DwarfRegNum<[45]>;
|
||||
def RPVR1 : MBlazeSPRReg<0x2001, "rpvr1">, DwarfRegNum<[46]>;
|
||||
def RPVR2 : MBlazeSPRReg<0x2002, "rpvr2">, DwarfRegNum<[47]>;
|
||||
def RPVR3 : MBlazeSPRReg<0x2003, "rpvr3">, DwarfRegNum<[48]>;
|
||||
def RPVR4 : MBlazeSPRReg<0x2004, "rpvr4">, DwarfRegNum<[49]>;
|
||||
def RPVR5 : MBlazeSPRReg<0x2005, "rpvr5">, DwarfRegNum<[50]>;
|
||||
def RPVR6 : MBlazeSPRReg<0x2006, "rpvr6">, DwarfRegNum<[51]>;
|
||||
def RPVR7 : MBlazeSPRReg<0x2007, "rpvr7">, DwarfRegNum<[52]>;
|
||||
def RPVR8 : MBlazeSPRReg<0x2008, "rpvr8">, DwarfRegNum<[53]>;
|
||||
def RPVR9 : MBlazeSPRReg<0x2009, "rpvr9">, DwarfRegNum<[54]>;
|
||||
def RPVR10 : MBlazeSPRReg<0x200A, "rpvr10">, DwarfRegNum<[55]>;
|
||||
def RPVR11 : MBlazeSPRReg<0x200B, "rpvr11">, DwarfRegNum<[56]>;
|
||||
|
||||
// The carry bit. In the Microblaze this is really bit 29 of the
|
||||
// MSR register but this is the only bit of that register that we
|
||||
|
|
|
|||
|
|
@ -8,57 +8,48 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Functional units across MBlaze chips sets. Based on GCC/MBlaze backend files.
|
||||
// MBlaze functional units.
|
||||
//===----------------------------------------------------------------------===//
|
||||
def ALU : FuncUnit;
|
||||
def IMULDIV : FuncUnit;
|
||||
def IF : FuncUnit;
|
||||
def ID : FuncUnit;
|
||||
def EX : FuncUnit;
|
||||
def MA : FuncUnit;
|
||||
def WB : FuncUnit;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Instruction Itinerary classes used for MBlaze
|
||||
//===----------------------------------------------------------------------===//
|
||||
def IIAlu : InstrItinClass;
|
||||
def IILoad : InstrItinClass;
|
||||
def IIStore : InstrItinClass;
|
||||
def IIXfer : InstrItinClass;
|
||||
def IIBranch : InstrItinClass;
|
||||
def IIHiLo : InstrItinClass;
|
||||
def IIImul : InstrItinClass;
|
||||
def IIIdiv : InstrItinClass;
|
||||
def IIFcvt : InstrItinClass;
|
||||
def IIFmove : InstrItinClass;
|
||||
def IIFcmp : InstrItinClass;
|
||||
def IIFadd : InstrItinClass;
|
||||
def IIFmulSingle : InstrItinClass;
|
||||
def IIFmulDouble : InstrItinClass;
|
||||
def IIFdivSingle : InstrItinClass;
|
||||
def IIFdivDouble : InstrItinClass;
|
||||
def IIFsqrtSingle : InstrItinClass;
|
||||
def IIFsqrtDouble : InstrItinClass;
|
||||
def IIFrecipFsqrtStep : InstrItinClass;
|
||||
def IIPseudo : InstrItinClass;
|
||||
def IIC_ALU : InstrItinClass;
|
||||
def IIC_ALUm : InstrItinClass;
|
||||
def IIC_ALUd : InstrItinClass;
|
||||
def IIC_SHT : InstrItinClass;
|
||||
def IIC_FSLg : InstrItinClass;
|
||||
def IIC_FSLp : InstrItinClass;
|
||||
def IIC_MEMs : InstrItinClass;
|
||||
def IIC_MEMl : InstrItinClass;
|
||||
def IIC_FPU : InstrItinClass;
|
||||
def IIC_FPUd : InstrItinClass;
|
||||
def IIC_FPUf : InstrItinClass;
|
||||
def IIC_FPUi : InstrItinClass;
|
||||
def IIC_FPUs : InstrItinClass;
|
||||
def IIC_FPUc : InstrItinClass;
|
||||
def IIC_BR : InstrItinClass;
|
||||
def IIC_BRc : InstrItinClass;
|
||||
def IIC_BRl : InstrItinClass;
|
||||
def IIC_WDC : InstrItinClass;
|
||||
def IIC_Pseudo : InstrItinClass;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// MBlaze Generic instruction itineraries.
|
||||
// MBlaze generic instruction itineraries.
|
||||
//===----------------------------------------------------------------------===//
|
||||
def MBlazeGenericItineraries : ProcessorItineraries<
|
||||
[ALU, IMULDIV], [], [
|
||||
InstrItinData<IIAlu , [InstrStage<1, [ALU]>]>,
|
||||
InstrItinData<IILoad , [InstrStage<3, [ALU]>]>,
|
||||
InstrItinData<IIStore , [InstrStage<1, [ALU]>]>,
|
||||
InstrItinData<IIXfer , [InstrStage<2, [ALU]>]>,
|
||||
InstrItinData<IIBranch , [InstrStage<1, [ALU]>]>,
|
||||
InstrItinData<IIHiLo , [InstrStage<1, [IMULDIV]>]>,
|
||||
InstrItinData<IIImul , [InstrStage<17, [IMULDIV]>]>,
|
||||
InstrItinData<IIIdiv , [InstrStage<38, [IMULDIV]>]>,
|
||||
InstrItinData<IIFcvt , [InstrStage<1, [ALU]>]>,
|
||||
InstrItinData<IIFmove , [InstrStage<2, [ALU]>]>,
|
||||
InstrItinData<IIFcmp , [InstrStage<3, [ALU]>]>,
|
||||
InstrItinData<IIFadd , [InstrStage<4, [ALU]>]>,
|
||||
InstrItinData<IIFmulSingle , [InstrStage<7, [ALU]>]>,
|
||||
InstrItinData<IIFmulDouble , [InstrStage<8, [ALU]>]>,
|
||||
InstrItinData<IIFdivSingle , [InstrStage<23, [ALU]>]>,
|
||||
InstrItinData<IIFdivDouble , [InstrStage<36, [ALU]>]>,
|
||||
InstrItinData<IIFsqrtSingle , [InstrStage<54, [ALU]>]>,
|
||||
InstrItinData<IIFsqrtDouble , [InstrStage<12, [ALU]>]>,
|
||||
InstrItinData<IIFrecipFsqrtStep , [InstrStage<5, [ALU]>]>
|
||||
]>;
|
||||
def MBlazeGenericItineraries : ProcessorItineraries<[], [], []>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// MBlaze instruction itineraries for three stage pipeline.
|
||||
//===----------------------------------------------------------------------===//
|
||||
include "MBlazeSchedule3.td"
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// MBlaze instruction itineraries for five stage pipeline.
|
||||
//===----------------------------------------------------------------------===//
|
||||
include "MBlazeSchedule5.td"
|
||||
|
|
|
|||
|
|
@ -0,0 +1,236 @@
|
|||
//===- MBlazeSchedule3.td - MBlaze Scheduling Definitions --*- tablegen -*-===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// MBlaze instruction itineraries for the threee stage pipeline.
|
||||
//===----------------------------------------------------------------------===//
|
||||
def MBlazePipe3Itineraries : ProcessorItineraries<
|
||||
[IF,ID,EX], [], [
|
||||
|
||||
// ALU instruction with one destination register and either two register
|
||||
// source operands or one register source operand and one immediate operand.
|
||||
// The instruction takes one cycle to execute in each of the stages. The
|
||||
// two source operands are read during the decode stage and the result is
|
||||
// ready after the execute stage.
|
||||
InstrItinData< IIC_ALU,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]>], // one cycle in execute stage
|
||||
[ 2 // result ready after two cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// ALU multiply instruction with one destination register and either two
|
||||
// register source operands or one register source operand and one immediate
|
||||
// operand. The instruction takes one cycle to execute in each of the
|
||||
// pipeline stages except the execute stage, which takes three cycles. The
|
||||
// two source operands are read during the decode stage and the result is
|
||||
// ready after the execute stage.
|
||||
InstrItinData< IIC_ALUm,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<3,[EX]>], // three cycles in execute stage
|
||||
[ 4 // result ready after four cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// ALU divide instruction with one destination register two register source
|
||||
// operands. The instruction takes one cycle to execute in each the pipeline
|
||||
// stages except the execute stage, which takes 34 cycles. The two
|
||||
// source operands are read during the decode stage and the result is ready
|
||||
// after the execute stage.
|
||||
InstrItinData< IIC_ALUd,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<34,[EX]>], // 34 cycles in execute stage
|
||||
[ 35 // result ready after 35 cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Shift instruction with one destination register and either two register
|
||||
// source operands or one register source operand and one immediate operand.
|
||||
// The instruction takes one cycle to execute in each of the pipeline stages
|
||||
// except the execute stage, which takes two cycles. The two source operands
|
||||
// are read during the decode stage and the result is ready after the execute
|
||||
// stage.
|
||||
InstrItinData< IIC_SHT,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<2,[EX]>], // two cycles in execute stage
|
||||
[ 3 // result ready after three cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Branch instruction with one source operand register. The instruction takes
|
||||
// one cycle to execute in each of the pipeline stages. The source operand is
|
||||
// read during the decode stage.
|
||||
InstrItinData< IIC_BR,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]>], // one cycle in execute stage
|
||||
[ 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Conditional branch instruction with two source operand registers. The
|
||||
// instruction takes one cycle to execute in each of the pipeline stages. The
|
||||
// two source operands are read during the decode stage.
|
||||
InstrItinData< IIC_BRc,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]>], // one cycle in execute stage
|
||||
[ 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Branch and link instruction with one destination register and one source
|
||||
// operand register. The instruction takes one cycle to execute in each of
|
||||
// the pipeline stages. The source operand is read during the decode stage
|
||||
// and the destination register is ready after the execute stage.
|
||||
InstrItinData< IIC_BRl,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]>], // one cycle in execute stage
|
||||
[ 2 // result ready after two cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Cache control instruction with two source operand registers. The
|
||||
// instruction takes one cycle to execute in each of the pipeline stages
|
||||
// except the memory access stage, which takes two cycles. The source
|
||||
// operands are read during the decode stage.
|
||||
InstrItinData< IIC_WDC,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<2,[EX]>], // two cycles in execute stage
|
||||
[ 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Floating point instruction with one destination register and two source
|
||||
// operand registers. The instruction takes one cycle to execute in each of
|
||||
// the pipeline stages except the execute stage, which takes six cycles. The
|
||||
// source operands are read during the decode stage and the results are ready
|
||||
// after the execute stage.
|
||||
InstrItinData< IIC_FPU,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<6,[EX]>], // six cycles in execute stage
|
||||
[ 7 // result ready after seven cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Floating point divide instruction with one destination register and two
|
||||
// source operand registers. The instruction takes one cycle to execute in
|
||||
// each of the pipeline stages except the execute stage, which takes 30
|
||||
// cycles. The source operands are read during the decode stage and the
|
||||
// results are ready after the execute stage.
|
||||
InstrItinData< IIC_FPUd,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<30,[EX]>], // one cycle in execute stage
|
||||
[ 31 // result ready after 31 cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Convert floating point to integer instruction with one destination
|
||||
// register and one source operand register. The instruction takes one cycle
|
||||
// to execute in each of the pipeline stages except the execute stage,
|
||||
// which takes seven cycles. The source operands are read during the decode
|
||||
// stage and the results are ready after the execute stage.
|
||||
InstrItinData< IIC_FPUi,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<7,[EX]>], // seven cycles in execute stage
|
||||
[ 8 // result ready after eight cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Convert integer to floating point instruction with one destination
|
||||
// register and one source operand register. The instruction takes one cycle
|
||||
// to execute in each of the pipeline stages except the execute stage,
|
||||
// which takes six cycles. The source operands are read during the decode
|
||||
// stage and the results are ready after the execute stage.
|
||||
InstrItinData< IIC_FPUf,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<6,[EX]>], // six cycles in execute stage
|
||||
[ 7 // result ready after seven cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Floating point square root instruction with one destination register and
|
||||
// one source operand register. The instruction takes one cycle to execute in
|
||||
// each of the pipeline stages except the execute stage, which takes 29
|
||||
// cycles. The source operands are read during the decode stage and the
|
||||
// results are ready after the execute stage.
|
||||
InstrItinData< IIC_FPUs,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<29,[EX]>], // 29 cycles in execute stage
|
||||
[ 30 // result ready after 30 cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Floating point comparison instruction with one destination register and
|
||||
// two source operand registers. The instruction takes one cycle to execute
|
||||
// in each of the pipeline stages except the execute stage, which takes three
|
||||
// cycles. The source operands are read during the decode stage and the
|
||||
// results are ready after the execute stage.
|
||||
InstrItinData< IIC_FPUc,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<3,[EX]>], // three cycles in execute stage
|
||||
[ 4 // result ready after four cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// FSL get instruction with one register or immediate source operand and one
|
||||
// destination register. The instruction takes one cycle to execute in each
|
||||
// of the pipeline stages except the execute stage, which takes two cycles.
|
||||
// The one source operand is read during the decode stage and the result is
|
||||
// ready after the execute stage.
|
||||
InstrItinData< IIC_FSLg,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<2,[EX]>], // two cycles in execute stage
|
||||
[ 3 // result ready after two cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// FSL put instruction with either two register source operands or one
|
||||
// register source operand and one immediate operand. There is no result
|
||||
// produced by the instruction. The instruction takes one cycle to execute in
|
||||
// each of the pipeline stages except the execute stage, which takes two
|
||||
// cycles. The two source operands are read during the decode stage.
|
||||
InstrItinData< IIC_FSLp,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<2,[EX]>], // two cycles in execute stage
|
||||
[ 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Memory store instruction with either three register source operands or two
|
||||
// register source operands and one immediate operand. There is no result
|
||||
// produced by the instruction. The instruction takes one cycle to execute in
|
||||
// each of the pipeline stages except the execute stage, which takes two
|
||||
// cycles. All of the source operands are read during the decode stage.
|
||||
InstrItinData< IIC_MEMs,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<2,[EX]>], // two cycles in execute stage
|
||||
[ 1 // first operand read after one cycle
|
||||
, 1 // second operand read after one cycle
|
||||
, 1 ]>, // third operand read after one cycle
|
||||
|
||||
// Memory load instruction with one destination register and either two
|
||||
// register source operands or one register source operand and one immediate
|
||||
// operand. The instruction takes one cycle to execute in each of the
|
||||
// pipeline stages except the execute stage, which takes two cycles. All of
|
||||
// the source operands are read during the decode stage and the result is
|
||||
// ready after the execute stage.
|
||||
InstrItinData< IIC_MEMl,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<2,[EX]>], // two cycles in execute stage
|
||||
[ 3 // result ready after four cycles
|
||||
, 1 // second operand read after one cycle
|
||||
, 1 ]> // third operand read after one cycle
|
||||
]>;
|
||||
|
|
@ -0,0 +1,267 @@
|
|||
//===- MBlazeSchedule5.td - MBlaze Scheduling Definitions --*- tablegen -*-===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// MBlaze instruction itineraries for the five stage pipeline.
|
||||
//===----------------------------------------------------------------------===//
|
||||
def MBlazePipe5Itineraries : ProcessorItineraries<
|
||||
[IF,ID,EX,MA,WB], [], [
|
||||
|
||||
// ALU instruction with one destination register and either two register
|
||||
// source operands or one register source operand and one immediate operand.
|
||||
// The instruction takes one cycle to execute in each of the stages. The
|
||||
// two source operands are read during the decode stage and the result is
|
||||
// ready after the execute stage.
|
||||
InstrItinData< IIC_ALU,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 2 // result ready after two cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// ALU multiply instruction with one destination register and either two
|
||||
// register source operands or one register source operand and one immediate
|
||||
// operand. The instruction takes one cycle to execute in each of the
|
||||
// pipeline stages. The two source operands are read during the decode stage
|
||||
// and the result is ready after the execute stage.
|
||||
InstrItinData< IIC_ALUm,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 2 // result ready after two cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// ALU divide instruction with one destination register two register source
|
||||
// operands. The instruction takes one cycle to execute in each the pipeline
|
||||
// stages except the memory access stage, which takes 31 cycles. The two
|
||||
// source operands are read during the decode stage and the result is ready
|
||||
// after the memory access stage.
|
||||
InstrItinData< IIC_ALUd,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<31,[MA]> // 31 cycles in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 33 // result ready after 33 cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Shift instruction with one destination register and either two register
|
||||
// source operands or one register source operand and one immediate operand.
|
||||
// The instruction takes one cycle to execute in each of the pipeline stages.
|
||||
// The two source operands are read during the decode stage and the result is
|
||||
// ready after the memory access stage.
|
||||
InstrItinData< IIC_SHT,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 3 // result ready after three cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Branch instruction with one source operand register. The instruction takes
|
||||
// one cycle to execute in each of the pipeline stages. The source operand is
|
||||
// read during the decode stage.
|
||||
InstrItinData< IIC_BR,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Conditional branch instruction with two source operand registers. The
|
||||
// instruction takes one cycle to execute in each of the pipeline stages. The
|
||||
// two source operands are read during the decode stage.
|
||||
InstrItinData< IIC_BRc,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Branch and link instruction with one destination register and one source
|
||||
// operand register. The instruction takes one cycle to execute in each of
|
||||
// the pipeline stages. The source operand is read during the decode stage
|
||||
// and the destination register is ready after the writeback stage.
|
||||
InstrItinData< IIC_BRl,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 4 // result ready after four cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Cache control instruction with two source operand registers. The
|
||||
// instruction takes one cycle to execute in each of the pipeline stages
|
||||
// except the memory access stage, which takes two cycles. The source
|
||||
// operands are read during the decode stage.
|
||||
InstrItinData< IIC_WDC,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<2,[MA]> // two cycles in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Floating point instruction with one destination register and two source
|
||||
// operand registers. The instruction takes one cycle to execute in each of
|
||||
// the pipeline stages except the memory access stage, which takes two
|
||||
// cycles. The source operands are read during the decode stage and the
|
||||
// results are ready after the writeback stage.
|
||||
InstrItinData< IIC_FPU,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<2,[MA]> // two cycles in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 5 // result ready after five cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Floating point divide instruction with one destination register and two
|
||||
// source operand registers. The instruction takes one cycle to execute in
|
||||
// each of the pipeline stages except the memory access stage, which takes 26
|
||||
// cycles. The source operands are read during the decode stage and the
|
||||
// results are ready after the writeback stage.
|
||||
InstrItinData< IIC_FPUd,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<26,[MA]> // 26 cycles in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 29 // result ready after 29 cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Convert floating point to integer instruction with one destination
|
||||
// register and one source operand register. The instruction takes one cycle
|
||||
// to execute in each of the pipeline stages except the memory access stage,
|
||||
// which takes three cycles. The source operands are read during the decode
|
||||
// stage and the results are ready after the writeback stage.
|
||||
InstrItinData< IIC_FPUi,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<3,[MA]> // three cycles in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 6 // result ready after six cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Convert integer to floating point instruction with one destination
|
||||
// register and one source operand register. The instruction takes one cycle
|
||||
// to execute in each of the pipeline stages except the memory access stage,
|
||||
// which takes two cycles. The source operands are read during the decode
|
||||
// stage and the results are ready after the writeback stage.
|
||||
InstrItinData< IIC_FPUf,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<2,[MA]> // two cycles in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 5 // result ready after five cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Floating point square root instruction with one destination register and
|
||||
// one source operand register. The instruction takes one cycle to execute in
|
||||
// each of the pipeline stages except the memory access stage, which takes 25
|
||||
// cycles. The source operands are read during the decode stage and the
|
||||
// results are ready after the writeback stage.
|
||||
InstrItinData< IIC_FPUs,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<25,[MA]> // 25 cycles in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 28 // result ready after 28 cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// Floating point comparison instruction with one destination register and
|
||||
// two source operand registers. The instruction takes one cycle to execute
|
||||
// in each of the pipeline stages. The source operands are read during the
|
||||
// decode stage and the results are ready after the execute stage.
|
||||
InstrItinData< IIC_FPUc,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 2 // result ready after two cycles
|
||||
, 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// FSL get instruction with one register or immediate source operand and one
|
||||
// destination register. The instruction takes one cycle to execute in each
|
||||
// of the pipeline stages. The one source operand is read during the decode
|
||||
// stage and the result is ready after the execute stage.
|
||||
InstrItinData< IIC_FSLg,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 2 // result ready after two cycles
|
||||
, 1 ]>, // first operand read after one cycle
|
||||
|
||||
// FSL put instruction with either two register source operands or one
|
||||
// register source operand and one immediate operand. There is no result
|
||||
// produced by the instruction. The instruction takes one cycle to execute in
|
||||
// each of the pipeline stages. The two source operands are read during the
|
||||
// decode stage.
|
||||
InstrItinData< IIC_FSLp,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 1 // first operand read after one cycle
|
||||
, 1 ]>, // second operand read after one cycle
|
||||
|
||||
// Memory store instruction with either three register source operands or two
|
||||
// register source operands and one immediate operand. There is no result
|
||||
// produced by the instruction. The instruction takes one cycle to execute in
|
||||
// each of the pipeline stages. All of the source operands are read during
|
||||
// the decode stage.
|
||||
InstrItinData< IIC_MEMs,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 1 // first operand read after one cycle
|
||||
, 1 // second operand read after one cycle
|
||||
, 1 ]>, // third operand read after one cycle
|
||||
|
||||
// Memory load instruction with one destination register and either two
|
||||
// register source operands or one register source operand and one immediate
|
||||
// operand. The instruction takes one cycle to execute in each of the
|
||||
// pipeline stages. All of the source operands are read during the decode
|
||||
// stage and the result is ready after the writeback stage.
|
||||
InstrItinData< IIC_MEMl,
|
||||
[ InstrStage<1,[IF]> // one cycle in fetch stage
|
||||
, InstrStage<1,[ID]> // one cycle in decode stage
|
||||
, InstrStage<1,[EX]> // one cycle in execute stage
|
||||
, InstrStage<1,[MA]> // one cycle in memory access stage
|
||||
, InstrStage<1,[WB]>], // one cycle in write back stage
|
||||
[ 4 // result ready after four cycles
|
||||
, 1 // second operand read after one cycle
|
||||
, 1 ]> // third operand read after one cycle
|
||||
]>;
|
||||
|
|
@ -13,19 +13,39 @@
|
|||
|
||||
#include "MBlazeSubtarget.h"
|
||||
#include "MBlaze.h"
|
||||
#include "MBlazeRegisterInfo.h"
|
||||
#include "MBlazeGenSubtarget.inc"
|
||||
#include "llvm/Support/CommandLine.h"
|
||||
using namespace llvm;
|
||||
|
||||
MBlazeSubtarget::MBlazeSubtarget(const std::string &TT, const std::string &FS):
|
||||
HasPipe3(false), HasBarrel(false), HasDiv(false), HasMul(false),
|
||||
HasFSL(false), HasEFSL(false), HasMSRSet(false), HasException(false),
|
||||
HasPatCmp(false), HasFPU(false), HasESR(false), HasPVR(false),
|
||||
HasMul64(false), HasSqrt(false), HasMMU(false)
|
||||
HasBarrel(false), HasDiv(false), HasMul(false), HasPatCmp(false),
|
||||
HasFPU(false), HasMul64(false), HasSqrt(false)
|
||||
{
|
||||
std::string CPU = "v400";
|
||||
MBlazeArchVersion = V400;
|
||||
|
||||
// Parse features string.
|
||||
ParseSubtargetFeatures(FS, CPU);
|
||||
std::string CPU = "mblaze";
|
||||
CPU = ParseSubtargetFeatures(FS, CPU);
|
||||
|
||||
// Only use instruction scheduling if the selected CPU has an instruction
|
||||
// itinerary (the default CPU is the only one that doesn't).
|
||||
HasItin = CPU != "mblaze";
|
||||
DEBUG(dbgs() << "CPU " << CPU << "(" << HasItin << ")\n");
|
||||
|
||||
// Compute the issue width of the MBlaze itineraries
|
||||
computeIssueWidth();
|
||||
}
|
||||
|
||||
void MBlazeSubtarget::computeIssueWidth() {
|
||||
InstrItins.IssueWidth = 1;
|
||||
}
|
||||
|
||||
bool MBlazeSubtarget::
|
||||
enablePostRAScheduler(CodeGenOpt::Level OptLevel,
|
||||
TargetSubtarget::AntiDepBreakMode& Mode,
|
||||
RegClassVector& CriticalPathRCs) const {
|
||||
Mode = TargetSubtarget::ANTIDEP_CRITICAL;
|
||||
CriticalPathRCs.clear();
|
||||
CriticalPathRCs.push_back(&MBlaze::GPRRegClass);
|
||||
return HasItin && OptLevel >= CodeGenOpt::Default;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -24,29 +24,14 @@ namespace llvm {
|
|||
class MBlazeSubtarget : public TargetSubtarget {
|
||||
|
||||
protected:
|
||||
|
||||
enum MBlazeArchEnum {
|
||||
V400, V500, V600, V700, V710
|
||||
};
|
||||
|
||||
// MBlaze architecture version
|
||||
MBlazeArchEnum MBlazeArchVersion;
|
||||
|
||||
bool HasPipe3;
|
||||
bool HasBarrel;
|
||||
bool HasDiv;
|
||||
bool HasMul;
|
||||
bool HasFSL;
|
||||
bool HasEFSL;
|
||||
bool HasMSRSet;
|
||||
bool HasException;
|
||||
bool HasPatCmp;
|
||||
bool HasFPU;
|
||||
bool HasESR;
|
||||
bool HasPVR;
|
||||
bool HasMul64;
|
||||
bool HasSqrt;
|
||||
bool HasMMU;
|
||||
bool HasItin;
|
||||
|
||||
InstrItineraryData InstrItins;
|
||||
|
||||
|
|
@ -61,18 +46,26 @@ public:
|
|||
std::string ParseSubtargetFeatures(const std::string &FS,
|
||||
const std::string &CPU);
|
||||
|
||||
/// Compute the number of maximum number of issues per cycle for the
|
||||
/// MBlaze scheduling itineraries.
|
||||
void computeIssueWidth();
|
||||
|
||||
/// enablePostRAScheduler - True at 'More' optimization.
|
||||
bool enablePostRAScheduler(CodeGenOpt::Level OptLevel,
|
||||
TargetSubtarget::AntiDepBreakMode& Mode,
|
||||
RegClassVector& CriticalPathRCs) const;
|
||||
|
||||
/// getInstrItins - Return the instruction itineraies based on subtarget.
|
||||
const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
|
||||
|
||||
bool hasItin() const { return HasItin; }
|
||||
bool hasPCMP() const { return HasPatCmp; }
|
||||
bool hasFPU() const { return HasFPU; }
|
||||
bool hasSqrt() const { return HasSqrt; }
|
||||
bool hasMul() const { return HasMul; }
|
||||
bool hasMul64() const { return HasMul64; }
|
||||
bool hasDiv() const { return HasDiv; }
|
||||
bool hasBarrel() const { return HasBarrel; }
|
||||
|
||||
bool isV400() const { return MBlazeArchVersion == V400; }
|
||||
bool isV500() const { return MBlazeArchVersion == V500; }
|
||||
bool isV600() const { return MBlazeArchVersion == V600; }
|
||||
bool isV700() const { return MBlazeArchVersion == V700; }
|
||||
bool isV710() const { return MBlazeArchVersion == V710; }
|
||||
};
|
||||
} // End llvm namespace
|
||||
|
||||
|
|
|
|||
|
|
@ -87,7 +87,8 @@ MBlazeTargetMachine(const Target &T, const std::string &TT,
|
|||
DataLayout("E-p:32:32:32-i8:8:8-i16:16:16"),
|
||||
InstrInfo(*this),
|
||||
FrameLowering(Subtarget),
|
||||
TLInfo(*this), TSInfo(*this), ELFWriterInfo(*this) {
|
||||
TLInfo(*this), TSInfo(*this), ELFWriterInfo(*this),
|
||||
InstrItins(Subtarget.getInstrItineraryData()) {
|
||||
if (getRelocationModel() == Reloc::Default) {
|
||||
setRelocationModel(Reloc::Static);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -38,13 +38,18 @@ namespace llvm {
|
|||
MBlazeSelectionDAGInfo TSInfo;
|
||||
MBlazeIntrinsicInfo IntrinsicInfo;
|
||||
MBlazeELFWriterInfo ELFWriterInfo;
|
||||
InstrItineraryData InstrItins;
|
||||
|
||||
public:
|
||||
MBlazeTargetMachine(const Target &T, const std::string &TT,
|
||||
const std::string &FS);
|
||||
const std::string &FS);
|
||||
|
||||
virtual const MBlazeInstrInfo *getInstrInfo() const
|
||||
{ return &InstrInfo; }
|
||||
|
||||
virtual const InstrItineraryData *getInstrItineraryData() const
|
||||
{ return &InstrItins; }
|
||||
|
||||
virtual const TargetFrameLowering *getFrameLowering() const
|
||||
{ return &FrameLowering; }
|
||||
|
||||
|
|
|
|||
|
|
@ -9,8 +9,6 @@
|
|||
needs to be examined more closely:
|
||||
- The stack layout needs to be examined to make sure it meets
|
||||
the standard, especially in regards to var arg functions.
|
||||
- The processor itineraries are copied from a different backend
|
||||
and need to be updated to model the MicroBlaze correctly.
|
||||
- Look at the MBlazeGenFastISel.inc stuff and make use of it
|
||||
if appropriate.
|
||||
|
||||
|
|
@ -18,9 +16,6 @@
|
|||
There are a few things that need to be looked at:
|
||||
- There are some instructions that are not generated by the backend
|
||||
and have not been tested as far as the parser is concerned.
|
||||
- The assembly parser does not use any MicroBlaze specific directives.
|
||||
- The assembly parser does not use many MicroBlaze specific directives.
|
||||
I should investigate if there are MicroBlaze specific directive and,
|
||||
if there are, add them.
|
||||
- The instruction MFS and MTS use special names for some of the
|
||||
special registers that can be accessed. These special register
|
||||
names should be parsed by the assembly parser.
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
; dynamic version of the instructions and that constant values use the
|
||||
; constant version of the instructions.
|
||||
;
|
||||
; RUN: llc < %s -march=mblaze | FileCheck %s
|
||||
; RUN: llc -O3 < %s -march=mblaze | FileCheck %s
|
||||
|
||||
declare i32 @llvm.mblaze.fsl.get(i32 %port)
|
||||
declare i32 @llvm.mblaze.fsl.aget(i32 %port)
|
||||
|
|
@ -55,8 +55,7 @@ declare void @llvm.mblaze.fsl.tnaput(i32 %port)
|
|||
declare void @llvm.mblaze.fsl.tncput(i32 %port)
|
||||
declare void @llvm.mblaze.fsl.tncaput(i32 %port)
|
||||
|
||||
define i32 @fsl_get(i32 %port)
|
||||
{
|
||||
define void @fsl_get(i32 %port) {
|
||||
; CHECK: fsl_get:
|
||||
%v0 = call i32 @llvm.mblaze.fsl.get(i32 %port)
|
||||
; CHECK: getd
|
||||
|
|
@ -122,12 +121,11 @@ define i32 @fsl_get(i32 %port)
|
|||
; CHECK-NEXT: tnecgetd
|
||||
%v31 = call i32 @llvm.mblaze.fsl.tnecaget(i32 %port)
|
||||
; CHECK-NEXT: tnecagetd
|
||||
ret i32 1
|
||||
ret void
|
||||
; CHECK: rtsd
|
||||
}
|
||||
|
||||
define i32 @fslc_get()
|
||||
{
|
||||
define void @fslc_get() {
|
||||
; CHECK: fslc_get:
|
||||
%v0 = call i32 @llvm.mblaze.fsl.get(i32 1)
|
||||
; CHECK: get
|
||||
|
|
@ -224,12 +222,11 @@ define i32 @fslc_get()
|
|||
%v31 = call i32 @llvm.mblaze.fsl.tnecaget(i32 1)
|
||||
; CHECK-NOT: tnecagetd
|
||||
; CHECK: tnecaget
|
||||
ret i32 1
|
||||
ret void
|
||||
; CHECK: rtsd
|
||||
}
|
||||
|
||||
define void @putfsl(i32 %value, i32 %port)
|
||||
{
|
||||
define void @putfsl(i32 %value, i32 %port) {
|
||||
; CHECK: putfsl:
|
||||
call void @llvm.mblaze.fsl.put(i32 %value, i32 %port)
|
||||
; CHECK: putd
|
||||
|
|
@ -267,8 +264,7 @@ define void @putfsl(i32 %value, i32 %port)
|
|||
; CHECK: rtsd
|
||||
}
|
||||
|
||||
define void @putfsl_const(i32 %value)
|
||||
{
|
||||
define void @putfsl_const(i32 %value) {
|
||||
; CHECK: putfsl_const:
|
||||
call void @llvm.mblaze.fsl.put(i32 %value, i32 1)
|
||||
; CHECK-NOT: putd
|
||||
|
|
|
|||
|
|
@ -29,14 +29,12 @@ loop_inner_finish:
|
|||
%inner.5 = add i32 %inner.2, 1
|
||||
call i32 (i8*,...)* @printf( i8* getelementptr([19 x i8]* @MSG,i32 0,i32 0),
|
||||
i32 %inner.0, i32 %inner.1, i32 %inner.2 )
|
||||
; CHECK: brlid
|
||||
; CHECK: addik {{.*, 1}}
|
||||
|
||||
%inner.6 = icmp eq i32 %inner.5, 100
|
||||
; CHECK: cmp
|
||||
; CHECK: cmp [[REG:r[0-9]*]]
|
||||
|
||||
br i1 %inner.6, label %loop_inner, label %loop_outer_finish
|
||||
; CHECK: {{beq|bne}}
|
||||
; CHECK: {{beqid|bneid}} [[REG]]
|
||||
|
||||
loop_outer_finish:
|
||||
%outer.1 = add i32 %outer.0, 1
|
||||
|
|
|
|||
Loading…
Reference in New Issue