target/6042: 128-bit long doubles do not work

target/6042: 128-bit long doubles do not work

[hatokan]

>Number:         6042
>Category:       target
>Synopsis:       128-bit long doubles do not work
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 22 13:06:02 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     hatokan@yahoo.com
>Release:        gcc-3.0.4
>Organization:
>Environment:
Linux 2.4.9-31 i686, RedHat 7.2, CPU:pentium4, 2.0Ghz, 512KBcache, mem=1GB
>Description:
The attached simple program produces different output when
compiled with -m128-bit-long-double option. The output is clearly wrong.

On other occasions, with larger programs, I also got segmentation faults during runtime. I can provide those programs if you are interested, but they are very long.
>How-To-Repeat:
compile the attached file with and without -m128bit-long-double option, compare the output.
>Fix:
gdb won't let me work with 16byte floats, i have no clue.
>Release-Note:
>Audit-Trail:
>Unformatted:
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Re: target/6042: 128-bit long doubles do not work

[rth]

Synopsis: 128-bit long doubles do not work

State-Changed-From-To: open->closed
State-Changed-By: rth
State-Changed-When: Fri Mar 29 17:08:59 2002
State-Changed-Why:
    Hardly surprising that your test case doesn't work.  The option
    changes the ABI, and as such *everything* must be compiled
    with it.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6042