Vm-dev November 2012

vm-dev@lists.squeakfoundation.org

24 participants
73 discussions

Issue 99 in cog: Link LZ4 Compression
by cog＠googlecode.com 08 Aug '13

08 Aug '13

Status: Accepted Owner: camillob...(a)gmail.com Labels: Type-Defect Priority-Medium New issue 99 by camillob...(a)gmail.com: Link LZ4 Compression http://code.google.com/p/cog/issues/detail?id=99 We should build our VM with lz4 support: https://code.google.com/p/lz4/ Ideally we will compress all internal unused/static data. Another application would be to compress all the fuel-ized data as well.

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Re: Issue 98 in cog: SSL plugin not recognized - latest vm and latest Pharo-2.0
by cog＠googlecode.com 08 Aug '13

08 Aug '13

Comment #4 on issue 98 by camillob...(a)gmail.com: SSL plugin not recognized - latest vm and latest Pharo-2.0 http://code.google.com/p/cog/issues/detail?id=98 Moved to: Issue cog:98

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Issue 97 in cog: Sound on Linux
by cog＠googlecode.com 08 Aug '13

08 Aug '13

Status: Accepted Owner: siguc...(a)gmail.com Labels: Type-Defect Priority-Medium New issue 97 by siguc...(a)gmail.com: Sound on Linux http://code.google.com/p/cog/issues/detail?id=97 ... I had to replace the vm-sound-ALSA plugin that comes bundled in the 1.4 one-click image with the so.vm-sound-ALSA one that comes in Squeak 4.3. Couldn't we include that one by default? The one that comes with Pharo doesn't work and reports "could not find module vm-sound-ALSA". ... Looks like run-time link problems, because code we use for this plugin is same.

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Issue 96 in cog: Using >> (bitShift:) instead of pow (raisedTo:)
by cog＠googlecode.com 08 Aug '13

08 Aug '13

Status: Accepted Owner: nicolas....(a)gmail.com Labels: Type-Enhancement Priority-Low New issue 96 by nicolas....(a)gmail.com: Using >> (bitShift:) instead of pow (raisedTo:) http://code.google.com/p/cog/issues/detail?id=96 By virtue of SLANG translation, interpreterAllocationReserveBytes uses pow((double)2,(double)n) to answer an int, wouldn't it better to just use a bit shift? 2^n <=> 1<<n, up to n=31 I doubt we reserve more than that, the result is signed anyway. And this would remove yet another warning. Attachments: interpreterAllocationReserveBytes.st 2.0 KB

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Re: Issue 72 in cog: Don't open an Dialog on Mac in headless mode
by cog＠googlecode.com 08 Aug '13

08 Aug '13

Updates: Status: Accepted Cc: esteba...(a)gmail.com Comment #1 on issue 72 by sean.p.d...(a)gmail.com: Don't open an Dialog on Mac in headless mode http://code.google.com/p/cog/issues/detail?id=72 This is even more important now with the MBP retina. A "headless" cog image always forces the GPU to discrete mode, draining the battery. I often use headless (e.g. for Jenkins jobs and web scrapers) and in addition to the distraction of the unneeded window popping up, the switch to the power hogging GPU for no reason is even more of a drag.

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Re: Issue 44 in cog: Ephemerons integration
by cog＠googlecode.com 08 Aug '13

08 Aug '13

Comment #5 on issue 44 by siguc...(a)gmail.com: Ephemerons integration http://code.google.com/p/cog/issues/detail?id=44 Eliot proposed to change implementation to use separate object format for Ephemerons.

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Re: Issue 92 in cog: 3 LargeInteger arithmetic primitive bugs with minimum signed 64 bit value
by cog＠googlecode.com 12 Mar '13

12 Mar '13

Comment #6 on issue 92 by nicolas....(a)gmail.com: 3 LargeInteger arithmetic primitive bugs with minimum signed 64 bit value http://code.google.com/p/cog/issues/detail?id=92 As long as SmallInteger minVal negated (2^30) fits on 32 bits, there would be no such problem in SmallInteger primitives. AFAICT, 0 - INT_MIN like problem was only in LargeInt primitives, and those are not jitted. However, JIT is clever and for example in genPrimitiveAdd avoid shifting the SmallInteger tag (genShiftAwaySmallIntegerTagsInScratchReg:), and just remove it from one of operands (genRemoveSmallIntegerTagsInScratchReg:) so as to directly produce a tagged integer. Thus, testing if the result fits in 31 bit SmallInteger, become as simple as testing for 32 bit overflow... Testing for overflow is much simpler than in C, see senders of #JumpOverflow: Note that genPrimitiveDivide use another strategy for testing overflow case of (SmallInteger minVal/-1).

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Issue 109 in cog: CogVM crashes with simple code
by cog＠googlecode.com 12 Mar '13

12 Mar '13

Status: New Owner: ---- Labels: Type-Defect Priority-Medium New issue 109 by jonkande...(a)gmail.com: CogVM crashes with simple code http://code.google.com/p/cog/issues/detail?id=109 Below are a few lines of code that crashes the CogVM on both Linux and Windows. File-in the Smalltalk code below, then evaluate [nil crashCogVM]. The code uses [1-1] but it could use [1+1] or [56+98]. I put the code on nil, but that is not important either. I think the important thing is that the primitive (+ or -) is evaluated but the result is not assigned into any variable. Also important is that the code is put into a loop that I assume has been JIT optimized. The image I used is Pharo 1.4 one-click with latest update #14459. This code does not crash StackVM. !UndefinedObject methodsFor: 'crash' stamp: 'JonKAnderson 11/29/2012 17:26'! crashCogVM " Evaluate [ nil crashCogVM ]" | i | i := 20. 1 to: i do: [:d | 1-1 ] ! !

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VM Maker: VMMaker.oscog-eem.226.mcz
by commits＠source.squeak.org 01 Dec '12

01 Dec '12

Eliot Miranda uploaded a new version of VMMaker to project VM Maker: http://source.squeak.org/VMMaker/VMMaker.oscog-eem.226.mcz ==================== Summary ==================== Name: VMMaker.oscog-eem.226 Author: eem Time: 30 November 2012, 3:54:54.206 pm UUID: 55513140-771d-4f43-931c-b61a61832d23 Ancestors: VMMaker.oscog-eem.225 typo. =============== Diff against VMMaker.oscog-eem.225 =============== Item was changed: ----- Method: StackToRegisterMappingCogit>>annotateBytecodeIfAnnotated: (in category 'bytecode generators') ----- annotateBytecodeIfAnnotated: aSimStackEntry + <var: #aSimStackEntry type: #'CogSimStackEntry'> - <var: #aSimStackEntry type: #'SimStackEntry'> <inline: false> aSimStackEntry annotateUse ifTrue: [self annotateBytecode: (self prevInstIsPCAnnotated ifTrue: [self Nop] ifFalse: [self Label]). aSimStackEntry annotateUse: false]!

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[commit][2625] Fix a type typo in the Cogit.
by commits＠squeakvm.org 01 Dec '12

01 Dec '12

Revision: 2625 Author: eliot Date: 2012-11-30 15:56:37 -0800 (Fri, 30 Nov 2012) Log Message: ----------- Fix a type typo in the Cogit. Modified Paths: -------------- branches/Cog/nscogsrc/vm/cogit.c branches/Cog/nscogsrc/vm/cogit.h branches/Cog/nscogsrc/vm/cogmethod.h branches/Cog/src/vm/cogit.c branches/Cog/src/vm/cogit.h branches/Cog/src/vm/cogmethod.h Property Changed: ---------------- branches/Cog/platforms/Cross/vm/sqSCCSVersion.h Modified: branches/Cog/nscogsrc/vm/cogit.c =================================================================== --- branches/Cog/nscogsrc/vm/cogit.c 2012-11-30 23:16:14 UTC (rev 2624) +++ branches/Cog/nscogsrc/vm/cogit.c 2012-11-30 23:56:37 UTC (rev 2625) @@ -1,9 +1,9 @@ /* Automatically generated by - CCodeGenerator VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 + CCodeGenerator VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 from - StackToRegisterMappingCogit VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 + StackToRegisterMappingCogit VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 */ -static char __buildInfo[] = "StackToRegisterMappingCogit VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 " __DATE__ ; +static char __buildInfo[] = "StackToRegisterMappingCogit VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 " __DATE__ ; char *__cogitBuildInfo = __buildInfo; @@ -368,7 +368,7 @@ static sqInt allocate(sqInt numBytes); static sqInt allYoungObjectsAgeInFullGC(void); static AbstractInstruction * annotateAbsolutePCRef(AbstractInstruction *abstractInstruction); -static void annotateBytecodeIfAnnotated(SimStackEntry aSimStackEntry); +static void annotateBytecodeIfAnnotated(CogSimStackEntry aSimStackEntry); static AbstractInstruction * annotateBytecode(AbstractInstruction *abstractInstruction); static AbstractInstruction * annotateobjRef(AbstractInstruction *abstractInstruction, sqInt anOop); static AbstractInstruction * annotatewith(AbstractInstruction *abstractInstruction, sqInt annotationFlag); @@ -2272,11 +2272,11 @@ } static void -annotateBytecodeIfAnnotated(SimStackEntry aSimStackEntry) +annotateBytecodeIfAnnotated(CogSimStackEntry aSimStackEntry) { AbstractInstruction *abstractInstruction; - if (annotateUse(aSimStackEntry)) { + if ((aSimStackEntry.annotateUse)) { /* begin annotateBytecode: */ abstractInstruction = (prevInstIsPCAnnotated() ? (/* begin Nop */ @@ -2284,7 +2284,7 @@ : (/* begin Label */ genoperandoperand(Label, (labelCounter += 1), bytecodePC))); annotatewith(abstractInstruction, HasBytecodePC); - annotateUse(aSimStackEntry, 0); + (aSimStackEntry.annotateUse = 0); } } Modified: branches/Cog/nscogsrc/vm/cogit.h =================================================================== --- branches/Cog/nscogsrc/vm/cogit.h 2012-11-30 23:16:14 UTC (rev 2624) +++ branches/Cog/nscogsrc/vm/cogit.h 2012-11-30 23:56:37 UTC (rev 2625) @@ -1,5 +1,5 @@ /* Automatically generated by - CCodeGenerator VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 + CCodeGenerator VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 */ Modified: branches/Cog/nscogsrc/vm/cogmethod.h =================================================================== --- branches/Cog/nscogsrc/vm/cogmethod.h 2012-11-30 23:16:14 UTC (rev 2624) +++ branches/Cog/nscogsrc/vm/cogmethod.h 2012-11-30 23:56:37 UTC (rev 2625) @@ -1,5 +1,5 @@ /* Automatically generated by - CCodeGenerator VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 + CCodeGenerator VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 */ typedef struct { Property changes on: branches/Cog/platforms/Cross/vm/sqSCCSVersion.h ___________________________________________________________________ Modified: checkindate - Fri Nov 30 15:13:46 PST 2012 + Fri Nov 30 15:56:10 PST 2012 Modified: branches/Cog/src/vm/cogit.c =================================================================== --- branches/Cog/src/vm/cogit.c 2012-11-30 23:16:14 UTC (rev 2624) +++ branches/Cog/src/vm/cogit.c 2012-11-30 23:56:37 UTC (rev 2625) @@ -1,9 +1,9 @@ /* Automatically generated by - CCodeGenerator VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 + CCodeGenerator VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 from - StackToRegisterMappingCogit VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 + StackToRegisterMappingCogit VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 */ -static char __buildInfo[] = "StackToRegisterMappingCogit VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 " __DATE__ ; +static char __buildInfo[] = "StackToRegisterMappingCogit VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 " __DATE__ ; char *__cogitBuildInfo = __buildInfo; @@ -368,7 +368,7 @@ static sqInt allocate(sqInt numBytes); static sqInt allYoungObjectsAgeInFullGC(void); static AbstractInstruction * annotateAbsolutePCRef(AbstractInstruction *abstractInstruction); -static void annotateBytecodeIfAnnotated(SimStackEntry aSimStackEntry); +static void annotateBytecodeIfAnnotated(CogSimStackEntry aSimStackEntry); static AbstractInstruction * annotateBytecode(AbstractInstruction *abstractInstruction); static AbstractInstruction * annotateobjRef(AbstractInstruction *abstractInstruction, sqInt anOop); static AbstractInstruction * annotatewith(AbstractInstruction *abstractInstruction, sqInt annotationFlag); @@ -1964,11 +1964,11 @@ } static void -annotateBytecodeIfAnnotated(SimStackEntry aSimStackEntry) +annotateBytecodeIfAnnotated(CogSimStackEntry aSimStackEntry) { AbstractInstruction *abstractInstruction; - if (annotateUse(aSimStackEntry)) { + if ((aSimStackEntry.annotateUse)) { /* begin annotateBytecode: */ abstractInstruction = (prevInstIsPCAnnotated() ? (/* begin Nop */ @@ -1976,7 +1976,7 @@ : (/* begin Label */ genoperandoperand(Label, (labelCounter += 1), bytecodePC))); annotatewith(abstractInstruction, HasBytecodePC); - annotateUse(aSimStackEntry, 0); + (aSimStackEntry.annotateUse = 0); } } Modified: branches/Cog/src/vm/cogit.h =================================================================== --- branches/Cog/src/vm/cogit.h 2012-11-30 23:16:14 UTC (rev 2624) +++ branches/Cog/src/vm/cogit.h 2012-11-30 23:56:37 UTC (rev 2625) @@ -1,5 +1,5 @@ /* Automatically generated by - CCodeGenerator VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 + CCodeGenerator VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 */ Modified: branches/Cog/src/vm/cogmethod.h =================================================================== --- branches/Cog/src/vm/cogmethod.h 2012-11-30 23:16:14 UTC (rev 2624) +++ branches/Cog/src/vm/cogmethod.h 2012-11-30 23:56:37 UTC (rev 2625) @@ -1,5 +1,5 @@ /* Automatically generated by - CCodeGenerator VMMaker.oscog-eem.225 uuid: 222bea80-06c8-4893-b1e1-d191688f36e6 + CCodeGenerator VMMaker.oscog-eem.226 uuid: 55513140-771d-4f43-931c-b61a61832d23 */ typedef struct {

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Vm-dev November 2012