Hello MikeAre you aware that there is a current implementation of the non-jit version for IBM Z series. I obviously support your efforts to do a jit version. I am the maintainer of that stuff and would like to work with you so I couldA. Share with you my experienceB. Coordinate between the two versions
I see that you are an IBM employee, so your designs will take precedence over mine, but with coordination we could keep them close.
I am glad that IBM decided to take over.
Please contact me at zatlas1@???
Ze'ev Atlas
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On Wed, Jan 16, 2019 at 10:27 AM, admin@???<admin@???> wrote:
https://bugs.exim.org/show_bug.cgi?id=2365
Bug ID: 2365
Summary: check_wordboundary does not explicitly set zero flag
Product: PCRE
Version: N/A
Hardware: Other
OS: All
Status: NEW
Severity: bug
Priority: medium
Component: Code
Assignee: ph10@???
Reporter: mike.munday@???
CC: pcre-dev@???
Created attachment 1166
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https://bugs.exim.org/attachment.cgi?id=1166&action=edit
Fix
The OP_WORD_BOUNDARY/OP_NOT_WORD_BOUNDARY implementation calls the fast
function check_wordboundary expecting it to set the zero flag (SLJIT_SET_Z).
The function never explicitly sets the flag though. I presume this works on
x86_64 because the xor instruction sets the zero flag regardless of whether it
is requested or not.
I've attached a patch that fixes the issue for me on the architecture I am
trying to port the PCRE2 JIT to (IBM Z).
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