Marcel Taeumel uploaded a new version of Compiler to project The Trunk: http://source.squeak.org/trunk/Compiler-mt.406.mcz
==================== Summary ====================
Name: Compiler-mt.406 Author: mt Time: 24 July 2019, 5:10:22.611145 pm UUID: 6d65ea45-4488-471b-a9cf-b4a16cac35f3 Ancestors: Compiler-mt.405
Minor performance improvement for has-literal checks. Thanks to Levente for the ideas!
Still not sure about putting true/false/nil-checks to the top. Also not sure the complex return blocks for symbol/character/integer.
=============== Diff against Compiler-mt.405 ===============
Item was changed: ----- Method: BytecodeEncoder class>>canBeSpecialLiteral: (in category 'testing') ----- canBeSpecialLiteral: aLiteral + "This check can be used to prevent unnecessary use of #scanBlockOrNilForLiteral:. For performance, this method summarizes specializations from all known bytecode encoders. It is not meant to be refined per bytecode encoder." - "This check can be used to prevent unnecessary use of #scanBlockOrNilForLiteral:. For performance, this method summarizes specializations from all known bytecode encoders. It is not meant to be refined per encoder." + aLiteral isSymbol ifTrue: [^ Smalltalk specialSelectors identityIncludes: aLiteral]. + aLiteral isCharacter ifTrue: [^ aLiteral asInteger <= 65535]. + aLiteral isInteger ifTrue: [^ aLiteral between: -32768 and: 32767]. + + aLiteral == true ifTrue: [^ true]. + aLiteral == false ifTrue: [^ true]. + aLiteral == nil ifTrue: [^ true]. + + ^ false! - ^ ((((((aLiteral isSymbol and: [Smalltalk specialSelectors includes: aLiteral]) - or: [aLiteral isInteger and: [aLiteral between: -32768 and: 32767]]) - or: [aLiteral isCharacter and: [aLiteral asInteger <= 65535]]) - or: [aLiteral == true]) - or: [aLiteral == false]) - or: [aLiteral == nil])!
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