[Bug math/13304] fma, fmaf, fmal produce wrong results

[jsm28 at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=13304

--- Comment #39 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
We now have soft-fp fma available for use by systems without the exceptions and
rounding mode support required for the main fma implementations using
rounding-to-odd to work.

commit 77f01ab5d1d2eead1bd4a9135d6a76ebd3fe21e5
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Tue Jul 2 14:55:32 2013 +0000

    Implement fma in soft-fp.

(which also makes soft-float MIPS cases use it).

commit 6bed143eb4bd42be907d143cca456d527e25efec
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Tue Jul 2 19:51:19 2013 +0000

    Make soft-float ARM use soft-fp fma/fmaf.

uses it for soft-float ARM.

Remaining unfixed cases:

* ldbl-128ibm (needs its own implementation).

* AM33 (supports exceptions but only round-to-nearest), soft-float SH, Tile,
MicroBlaze, soft-float ColdFire (all need to use the soft-fp implementation).

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