Loom fails tobuild on linux x64

[Remi Forax]

Doing a cat /proc/cpuinfo, i get

processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 85
model name	: Intel(R) Xeon(R) CPU
stepping	: 7
microcode	: 0x1
cpu MHz		: 2800.252
cache size	: 33792 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 1
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ssbd ibrs ibpb stibp ibrs_enhanced fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves arat avx512_vnni md_clear arch_capabilities
bugs		: spectre_v1 spectre_v2 spec_store_bypass mds swapgs taa itlb_multihit
bogomips	: 5600.50
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

so some AVX 512 bits enabled :)

Rémi

----- Mail original -----
> De: "Remi Forax" <forax at univ-mlv.fr>
> À: "Alan Bateman" <Alan.Bateman at oracle.com>
> Cc: "loom-dev" <loom-dev at openjdk.java.net>
> Envoyé: Dimanche 12 Janvier 2020 23:43:22
> Objet: Re: Loom fails tobuild on linux x64

> so jdk/jdk build fine.
> and loom linux 64bits still fails [1].
> 
> and the build doesn't seem to report the the AVX version.
> 
> Rémi
> [1]
> https://travis-ci.org/forax/java-next/jobs/636086491?utm_medium=notification&utm_source=email
> 
> ----- Mail original -----
>> De: "Alan Bateman" <Alan.Bateman at oracle.com>
>> À: "Remi Forax" <forax at univ-mlv.fr>, "loom-dev" <loom-dev at openjdk.java.net>
>> Envoyé: Dimanche 12 Janvier 2020 19:32:14
>> Objet: Re: Loom fails tobuild on linux x64
> 
>> On 12/01/2020 15:25, Remi Forax wrote:
>>> Hi all,
>>> Loom fails to build on linux x64.
>>>
>>> See https://travis-ci.org/forax/java-next/jobs/635937417#L2009
>>>
>>> Note that it builds on macOs ??
>>>
>> guarantee(this->is8bit(imm8)) failed: Short forward jump exceeds 8-bit
>> offset at <NULL>:0
>> 
>> Does jdk/jdk build on this system? Just asking as I sync'ed loom up to
>> jdk-15+5 yesterday so we picked up a lot of changes from the main line.
>> Release and fastdebug builds are working for me on linux-x64, macosx-x64
>> and windows-x64 but the code generation will be different depending on
>> the version of AVX support and other factors so useful to know first if
>> you see the same thing with the main line.
>> 
> > -Alan