asm/AJStackAlignmentTests.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Wed, 15 Jun 2016 23:46:29 +0100
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child 24 5aace704e3c8
permissions -rw-r--r--
Added README, licenses and copyright notices.
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"{ Package: 'jv:dragonfly/asm' }"
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"{ NameSpace: Smalltalk }"
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TestCase subclass:#AJStackAlignmentTests
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	instanceVariableNames:''
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	classVariableNames:''
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	poolDictionaries:'AJx86Registers'
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	category:'AsmJit-Tests'
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!
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!AJStackAlignmentTests methodsFor:'tests'!
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testJumps
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    | asm callInfo |
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    asm := self newAssembler.
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    asm noStackFrame.
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    asm jmp: #foo;
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        nop;
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        nop;
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        nop;
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        nop;
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        nop;
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        nop;
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        nop;
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        nop;
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    label: #foo.
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    ^ asm generatedCode.
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!
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testNewProtocolForAlignedCalls
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    | asm callInfo |
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    asm := self newAssembler.
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    asm cdeclCall:  [:call |
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        call 
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            push: EAX;
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            push: EAX;
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            push: 4.
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        asm call: EAX.
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        callInfo := call.
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    ] alignment: 32.
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    asm generatedCode. "to analyze instructions"
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    self assert: callInfo stackSize = 12.
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    self assert: callInfo needsAlignment
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    "Modified (format): / 15-12-2015 / 23:20:41 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!AJStackAlignmentTests methodsFor:'utility'!
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newAssembler 
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    ^ AJx86Assembler new
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! !
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