Hi Ben,

On Sat, Jan 6, 2018 at 8:47 PM, Ben Coman <btc@openinworld.com> wrote:

With Linux 64 bit image��

TestRunner running FLBinaryFileStreamSerializationTest

produces error "PrimitiveFailed: primitive #basicIdentityHash in SmallFloat64 failed"

I suspect the SmallFloat64 basicIdentityHash method is missing or using the wrong primitive number.�� Here's what happens in Squeak:

1.0 class -> 1.0 identityHash hex -> ((1.0 class whichClassIncludesSelector: #identityHash) >> #identityHash) primitive SmallFloat64->'16r7F0000000000000'->171

And primitive 171 is the primitiveImmediateAsInteger primitive that converts SmallIntegers to themselves, Characters to their integer codes, and SmallFloat64 to an integer representing their��bits. ��e.g.

#(-0.0 0.0 -1.0 1.0) collect: [:n| n -> n identityHash hex -> (n identityHash bitAnd: 2 << 64 - 1) hex]

{-0.0->'-16r1000000000000000'->'16r1F000000000000000' .

�� 0.0->'16r0'->'16r0' .

��-1.0->'-16r810000000000000'->'16r1F7F0000000000000' .

�� 1.0->'16r7F0000000000000'->'16r7F0000000000000'}

SmallFloat64>>identityHash

"Answer an integer unique to the receiver."

<primitive: 171>

^self primitiveFailed

HTH

The same error occurs evaluating...

�� 1.0 largeIdentityHash

which works fine on 32-bit.

https://pharo.fogbugz.com/f/cases/20936/64bit-primitiveFailure-for-1-0-largeIdentityHash

Build information:��

Pharo-7.0+alpha.build.409.sha.bb4eaaf976e3fb148b33b6d87598022b77329768 (64 Bit)

CoInterpreter VMMaker.oscog-eem.2295�� Dec 21 2017

StackToRegisterMappingCogit VMMaker.oscog-eem.2297 Dec 21 2017

VM: 201712211450��

Unix built on Dec 21 2017 14:53:19 Compiler: 4.8.4

cheers -ben

_,,,^..^,,,_

best,��Eliot