Eliot Miranda uploaded a new version of VMMaker to project VM Maker: http://source.squeak.org/VMMaker/VMMaker.oscog-cb.1487.mcz
==================== Summary ====================
Name: VMMaker.oscog-cb.1487 Author: cb Time: 1 October 2015, 4:07:44.54 pm UUID: 7f65b3d4-eb96-4fff-abc2-bb6edd58e98d Ancestors: VMMaker.oscog-cb.1486
empty log message
=============== Diff against VMMaker.oscog-cb.1486 ===============
Item was changed: ----- Method: StackToRegisterMappingCogit>>genBinaryConstOpVarInlinePrimitive: (in category 'inline primitive generators') ----- genBinaryConstOpVarInlinePrimitive: prim "Const op var version of binary inline primitives." "SistaV1: 248 11111000 iiiiiiii mjjjjjjj Call Primitive #iiiiiiii + (jjjjjjj * 256) m=1 means inlined primitive, no hard return after execution. See EncoderForSistaV1's class comment and StackInterpreter>>#binaryInlinePrimitive:" | ra val untaggedVal adjust | ra := self allocateRegForStackEntryAt: 0. self ssTop popToReg: ra. self ssPop: 1. val := self ssTop constant. self ssPop: 1. untaggedVal := val - objectMemory smallIntegerTag. prim caseOf: { "0 through 6, +, -, *, /, //, \, quo:, SmallInteger op SmallInteger => SmallInteger, no overflow" [0] -> [self AddCq: untaggedVal R: ra]. [1] -> [self MoveCq: val R: TempReg. self SubR: ra R: TempReg. objectRepresentation genAddSmallIntegerTagsTo: TempReg. self MoveR: TempReg R: ra]. [2] -> [objectRepresentation genRemoveSmallIntegerTagsInScratchReg: ra. self MoveCq: (objectMemory integerValueOf: val) R: TempReg. self MulR: TempReg R: ra. objectRepresentation genAddSmallIntegerTagsTo: ra].
"2016 through 2019, bitAnd:, bitOr:, bitXor, bitShift:, SmallInteger op SmallInteger => SmallInteger, no overflow" + [16] -> [ self AndCq: val R: ra ]. + [17] -> [ self OrCq: val R: ra ]. + [18] -> [ self XorCw: untaggedVal R: ra. ]. - [16] -> [ self AndR: val R: ra ]. - [17] -> [ self OrR: val R: ra ]. - [18] -> [ self XorR: untaggedVal R: ra. ].
"2032 through 2037, >, <, >=, <=. =, ~=, SmallInteger op SmallInteger => Boolean (flags?? then in jump bytecodes if ssTop is a flags value, just generate the instruction!!!!)" "CmpCqR is SubRCq so everything is reversed, but because no CmpRCq things are reversed again and we invert the sense of the jumps." [32] -> [ self CmpCq: val R: ra. self genBinaryInlineComparison: JumpLess opFalse: JumpGreaterOrEqual destReg: ra ]. [33] -> [ self CmpCq: val R: ra. self genBinaryInlineComparison: JumpGreater opFalse: JumpLessOrEqual destReg: ra ]. [34] -> [ self CmpCq: val R: ra. self genBinaryInlineComparison: JumpLessOrEqual opFalse: JumpGreater destReg: ra ]. [35] -> [ self CmpCq: val R: ra. self genBinaryInlineComparison: JumpGreaterOrEqual opFalse: JumpLess destReg: ra ]. [36] -> [ self CmpCq: val R: ra. self genBinaryInlineComparison: JumpZero opFalse: JumpNonZero destReg: ra ]. [37] -> [ self CmpCq: val R: ra. self genBinaryInlineComparison: JumpNonZero opFalse: JumpZero destReg: ra ].
"2064 through 2068, Pointer Object>>at:, Byte Object>>at:, Short16 Word Object>>at: LongWord32 Object>>at: Quad64Word Object>>at:. obj op 0-rel SmallInteger => oop" [64] -> [objectRepresentation genConvertSmallIntegerToIntegerInReg: ra. adjust := (objectMemory baseHeaderSize >> objectMemory shiftForWord) - 1. "shift by baseHeaderSize and then move from 1 relative to zero relative" adjust ~= 0 ifTrue: [ self AddCq: adjust R: ra. ]. self genMoveConstant: val R: TempReg. self MoveXwr: ra R: TempReg R: ra]. [65] -> [objectRepresentation genConvertSmallIntegerToIntegerInReg: ra. adjust := objectMemory baseHeaderSize - 1. "shift by baseHeaderSize and then move from 1 relative to zero relative" self AddCq: adjust R: ra. self genMoveConstant: val R: TempReg. self MoveXbr: ra R: TempReg R: ra. objectRepresentation genConvertIntegerToSmallIntegerInReg: ra] } otherwise: [^EncounteredUnknownBytecode]. self ssPushRegister: ra. ^0!
Item was changed: ----- Method: StackToRegisterMappingCogit>>genBinaryVarOpConstInlinePrimitive: (in category 'inline primitive generators') ----- genBinaryVarOpConstInlinePrimitive: prim "Var op const version of inline binary inline primitives." "SistaV1: 248 11111000 iiiiiiii mjjjjjjj Call Primitive #iiiiiiii + (jjjjjjj * 256) m=1 means inlined primitive, no hard return after execution. See EncoderForSistaV1's class comment and StackInterpreter>>#binaryInlinePrimitive:" | rr val untaggedVal | val := self ssTop constant. self ssPop: 1. rr := self allocateRegForStackEntryAt: 0. self ssTop popToReg: rr. self ssPop: 1. untaggedVal := val - objectMemory smallIntegerTag. prim caseOf: { "0 through 6, +, -, *, /, //, \, quo:, SmallInteger op SmallInteger => SmallInteger, no overflow" [0] -> [self AddCq: untaggedVal R: rr]. [1] -> [self SubCq: untaggedVal R: rr ]. [2] -> [self flag: 'could use MulCq:R'. objectRepresentation genShiftAwaySmallIntegerTagsInScratchReg: rr. self MoveCq: (objectMemory integerValueOf: val) R: TempReg. self MulR: TempReg R: rr. objectRepresentation genAddSmallIntegerTagsTo: rr].
"2016 through 2019, bitAnd:, bitOr:, bitXor, bitShift:, SmallInteger op SmallInteger => SmallInteger, no overflow" + [16] -> [ self AndCq: val R: rr ]. + [17] -> [ self OrCq: val R: rr ]. + [18] -> [ self flag: 'could use XorCq:'. + self XorCw: untaggedVal R: rr. ]. - [16] -> [ self AndR: val R: rr ]. - [17] -> [ self OrR: val R: rr ]. - [18] -> [ self XorR: untaggedVal R: rr. ].
"2032 through 2037, >, <, >=, <=. =, ~=, SmallInteger op SmallInteger => Boolean (flags?? then in jump bytecodes if ssTop is a flags value, just generate the instruction!!!!)" "CmpCqR is SubRCq so everything is reversed." [32] -> [ self CmpCq: val R: rr. self genBinaryInlineComparison: JumpGreater opFalse: JumpLessOrEqual destReg: rr ]. [33] -> [ self CmpCq: val R: rr. self genBinaryInlineComparison: JumpLess opFalse: JumpGreaterOrEqual destReg: rr ]. [34] -> [ self CmpCq: val R: rr. self genBinaryInlineComparison: JumpGreaterOrEqual opFalse: JumpLess destReg: rr ]. [35] -> [ self CmpCq: val R: rr. self genBinaryInlineComparison: JumpLessOrEqual opFalse: JumpGreater destReg: rr ]. [36] -> [ self CmpCq: val R: rr. self genBinaryInlineComparison: JumpZero opFalse: JumpNonZero destReg: rr ]. [37] -> [ self CmpCq: val R: rr. self genBinaryInlineComparison: JumpNonZero opFalse: JumpZero destReg: rr ].
"2064 through 2068, Pointer Object>>at:, Byte Object>>at:, Short16 Word Object>>at: LongWord32 Object>>at: Quad64Word Object>>at:. obj op 0-rel SmallInteger => oop" [64] -> [objectRepresentation genLoadSlot: (objectMemory integerValueOf: val) - 1 sourceReg: rr destReg: rr]. [65] -> [self MoveCq: (objectMemory integerValueOf: val) + objectMemory baseHeaderSize - 1 R: TempReg. self MoveXbr: TempReg R: rr R: rr. objectRepresentation genConvertIntegerToSmallIntegerInReg: rr]
} otherwise: [^EncounteredUnknownBytecode]. self ssPushRegister: rr. ^0!
vm-dev@lists.squeakfoundation.org