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[perl #133150] sprintf2.t tests fail on Linux/ia64

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From:
James E Keenan via RT
Date:
April 24, 2018 18:24
Subject:
[perl #133150] sprintf2.t tests fail on Linux/ia64
Message ID:
rt-4.0.24-5566-1524594246-213.133150-15-0@perl.org
On Tue, 24 Apr 2018 16:17:44 GMT, jason.duerstock@gmail.com wrote:
> 
> This is a bug report for perl from jason.duerstock@gmail.com,
> generated with the help of perlbug 1.40 running under perl 5.26.1.
> 
> 
> -----------------------------------------------------------------
> [Please describe your issue here]
> 
> This is actually for 5.26.2.
> 
> The perl testsuite fails in t/op/sprintf2.t:
> 
> $ ./perl t/op/sprintf2.t |grep -v ^ok
> # uvsize = 8
> # nvsize = 8
> # nv_preserves_uv_bits = 53
> # d_quad = define
> # uselongdouble = undef
> # Failed test 1492 - subnormal 0x1.fffffffffffffp-1022 %a
> 0x1.fffffffffffffp-1022 got 0x0p+0 at t/op/sprintf2.t line 812
> #      got "0x0p+0"
> # expected "0x1.fffffffffffffp-1022"
> # Failed test 1493 - subnormal 0x0.fffffffffffffp-1022 %a
> 0x1.ffffffffffffep-1023 got 0x0p+0 at t/op/sprintf2.t line 812
> #      got "0x0p+0"
> # expected "0x1.ffffffffffffep-1023"
> # Failed test 1494 - subnormal 0x0.7ffffffffffffp-1022 %a
> 0x1.ffffffffffffcp-1024 got 0x0p+0 at t/op/sprintf2.t line 812
> #      got "0x0p+0"
> # expected "0x1.ffffffffffffcp-1024"
> # Failed test 1495 - subnormal 0x0.3ffffffffffffp-1022 %a
> 0x1.ffffffffffff8p-1025 got 0x0p+0 at t/op/sprintf2.t line 812
> #      got "0x0p+0"
> # expected "0x1.ffffffffffff8p-1025"
> # Failed test 1496 - subnormal 0x0.1ffffffffffffp-1022 %a
> 0x1.ffffffffffffp-1026 got 0x0p+0 at t/op/sprintf2.t line 812
> #      got "0x0p+0"
> # expected "0x1.ffffffffffffp-1026"
> # Failed test 1497 - subnormal 0x0.0ffffffffffffp-1022 %a
> 0x1.fffffffffffep-1027 got 0x0p+0 at t/op/sprintf2.t line 812
> #      got "0x0p+0"
> # expected "0x1.fffffffffffep-1027"
> not ok 1492 - subnormal 0x1.fffffffffffffp-1022 %a 0x1.fffffffffffffp-
> 1022 got 0x0p+0
> not ok 1493 - subnormal 0x0.fffffffffffffp-1022 %a 0x1.ffffffffffffep-
> 1023 got 0x0p+0
> not ok 1494 - subnormal 0x0.7ffffffffffffp-1022 %a 0x1.ffffffffffffcp-
> 1024 got 0x0p+0
> not ok 1495 - subnormal 0x0.3ffffffffffffp-1022 %a 0x1.ffffffffffff8p-
> 1025 got 0x0p+0
> not ok 1496 - subnormal 0x0.1ffffffffffffp-1022 %a 0x1.ffffffffffffp-
> 1026 got 0x0p+0
> not ok 1497 - subnormal 0x0.0ffffffffffffp-1022 %a 0x1.fffffffffffep-
> 1027 got 0x0p+0
> 1..1555
> 
> The Debian build log is here:
> 
> https://buildd.debian.org/status/fetch.php?pkg=perl&arch=Ia64&ver=5.26.2-
> 2&stamp=1523994239&raw=0
> 
> 

This is probably the same problem as previously reported here:

https://rt.perl.org/Ticket/Display.html?id= (sprintf2.t subnormal %a failures on g++ 6.2)

https://rt.perl.org/Ticket/Display.html?id=131388 (g++ vs subnormals in 5.26.0)

Thank you very much.

-- 
James E Keenan (jkeenan@cpan.org)

---
via perlbug:  queue: perl5 status: new
https://rt.perl.org/Ticket/Display.html?id=133150

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