[Info-vax] VMS x86-64 compilers

[Mark Daniel]

On 17/11/2023 06:01, Mark Daniel wrote:
> On 17/11/2023 05:50, Dan Cross wrote:
>> In article <qdt5N.129064$ydda.38102 at fx13.ams4>,
>> Mark Daniel  <mark.daniel at wasd.vsm.com.au> wrote:
>>> On 16/11/2023 22:52, Arne Vajhøj wrote:
>>>> Looks like new versions of C, Pascal and Fortran has just been 
>>>> released.
>>>>
>>>> Arne
>>>
>>> $ X86VMS$ cc/version
>>> VSI C x86-64 X7.4-843 (GEM 50XB9) on OpenVMS x86_64 V9.2-1
>>> $ CC /DECC /STAND=RELAXED_ANSI /PREFIX=ALL /NAMES=AS_IS /OPTIMIZE
>>> /NODEBUG /WARNING=(NOINFORM,DISABLE=(PREOPTW)) /FLOAT=IEEE /IEEE=DENORM
>>> /DEFINE(WASD_VMS_V7,SESOLA,WATCH_CAT=1,WATCH_MOD=0,WASD_ACME=1,WASD_GETSPI=1)
>>> /OBJ=[.obj_X86_64]Error    Error.c
>>> LLVM ERROR: Cannot encode high byte register in REX-prefixed instruction
>>>
>>> https://forum.vmssoftware.com/viewtopic.php?f=12&t=8900
>>
>> What's in `Error.c`?  It's neither here nor on the VSI forum.
>>
>>     - Dan C.
> 
> I have not bothered to isolate a simple reproducer in anticipation of a 
> Reagan-esque, "oh that means...", or "I'll add that to the list".  :-)

Boom-boom.  Just posted in the VSI Forum:

"yeah, we saw it just a few days ago. Already fixed in our sources.
Can you try /NOOPT? It should avoid the bug."

It did and it does.

> https://wasd.vsm.com.au/wasd_root/src/httpd/error.c
> 
> The error is reported across multiple modules and so relates to a common 
> header file construct or repeated code construct used individually.
> 

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