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Re: [SPARC] Fix PR target/51920
- From: David Miller <davem at davemloft dot net>
- To: ebotcazou at adacore dot com
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Mon, 30 Jan 2012 11:40:18 -0500 (EST)
- Subject: Re: [SPARC] Fix PR target/51920
- References: <201201301341.29055.ebotcazou@adacore.com>
From: Eric Botcazou <ebotcazou@adacore.com>
Date: Mon, 30 Jan 2012 13:41:28 +0100
> I think it's the long-standing issue with word-mode paradoxical subregs of FP
> regs in 64-bit mode, which is present on both PA and SPARC. We don't have any
> real solution as of this writing, only kludges, so the attached patch makes it
> so that vector_init_fpmerge doesn't create pseudos with long live ranges, to
> lower the pressure on the register allocator.
>
> Tested on SPARC/Solaris, applied on the mainline.
Thanks for fixing this Eric.