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[Bug target/51920] 64-bit gcc.target/sparc/vec-init-1-vis1.c FAILs
- From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 29 Jan 2012 23:23:19 +0000
- Subject: [Bug target/51920] 64-bit gcc.target/sparc/vec-init-1-vis1.c FAILs
- Auto-submitted: auto-generated
- References: <bug-51920-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51920
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |ebotcazou at gcc dot
|gnu.org |gnu.org
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-01-29 23:23:19 UTC ---
> The output operand of all insns generating 'fpmerge' only accept the proper 'e'
> constraint.
'e' doesn't imply even-numbered though, there is no specific constraint for
that.
I think it's the long-standing issue with word-mode paradoxical subregs of FP
regs in 64-bit mode, for which both the PA and the SPARC ports have a kludge,
in the form of the CANNOT_CHANGE_MODE_CLASS macro.
I'm going to kludge again for this one by tweaking vector_init_fpmerge a bit.