[Vm-dev] VM Maker: VMMaker-oscog-dtl.125.mcz

commits at source.squeak.org commits at source.squeak.org
Fri Oct 7 03:27:05 UTC 2011

David T. Lewis uploaded a new version of VMMaker to project VM Maker:

==================== Summary ====================

Name: VMMaker-oscog-dtl.125
Author: dtl
Time: 6 October 2011, 11:25:15.484 pm
UUID: a1805ec0-e992-407a-a3db-ed1899c91c5a
Ancestors: VMMaker-oscog-dtl.124

Support for FreeTypePlugin.

Arrange for emitCConstantsOn: to retain BytesPerWord as a constant even in not present in the globals, as will be the case if BytesPerWord is magically generated by the code generator rather than being defined as a global. Intended for oscog branch, not required for VMM trunk, which no longer uses BytesPerWord.

=============== Diff against VMMaker-oscog-dtl.124 ===============

Item was changed:
  ----- Method: CCodeGenerator>>emitCConstantsOn: (in category 'C code generator') -----
  emitCConstantsOn: aStream 
  	"Store the global variable declarations on the given stream."
  	| unused constList |
  	unused := constants keys asSet.
  	methods do:
  		meth parseTree nodesDo:
  			[:n| n isConstant ifTrue: [unused remove: n name ifAbsent: []]]].
  	unused copy do:
  		(variableDeclarations anySatisfy: [:value| value includesSubString: const]) ifTrue:
  			[unused remove: const ifAbsent: []]].
  	"Don't generate any defines for the externally defined constants, STACKVM, COGVM, COGMTVM et al."
  	(VMClass class>>#initializeMiscConstantsWith:) literalsDo:
  		lit isVariableBinding ifTrue:
  			[unused add: lit key]].
+ 	unused remove: #BytesPerWord ifAbsent: []. "force inclusion of BytesPerWord declaration"
  	constList := constants keys reject:[:any| unused includes: any].
  	aStream cr; nextPutAll: '/*** Constants ***/'; cr.
  	(self sortStrings: constList) do:
  		[:varName| | node default value |
  		node := constants at: varName.
  		node name isEmpty ifFalse:
  			["Allow the class to provide an alternative definition, either of just the value or the whole shebang"
  			default := self cLiteralFor: node value name: varName.
  			value := vmClass
  							[(vmClass specialValueForConstant: node name default: default)
  								ifNotNil: [:specialDef| specialDef]
  								ifNil: [default]]
  						ifNil: [default].
  			value first ~= $# ifTrue:
  				[aStream nextPutAll: '#define '; nextPutAll: node name; space].
  			aStream nextPutAll: value; cr]].
  	aStream cr!

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