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[Bug middle-end/67766] [6 Regression]: Bootstrap failure on alpha-linux-gnu: ICE in simplify_subreg, at simplify-rtx.c
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 07 Oct 2015 12:46:33 +0000
- Subject: [Bug middle-end/67766] [6 Regression]: Bootstrap failure on alpha-linux-gnu: ICE in simplify_subreg, at simplify-rtx.c
- Auto-submitted: auto-generated
- References: <bug-67766-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67766
--- Comment #2 from UroÅ Bizjak <ubizjak at gmail dot com> ---
(In reply to Alexandre Oliva from comment #1)
> Mine. Moving down the code in function.c that's under the comment:
> /* If a named return value dumped decl_return to memory, then
> we may need to re-do the PROMOTE_MODE signed/unsigned
> extension. */
> so that the test:
> else if (GET_MODE (real_decl_rtl) != GET_MODE (decl_rtl))
> appears after the blocks that deal with PARALLELs and CONCATs fixes it for
> me, without any regressions on x86* regstraps.
>
> Could you please confirm it fixes bootstrap on alpha? TIA,
Yes, the patch, based on the above instructions, passes the bootstrap. I'm
currently in the regression tests, but I don't expect any surprises there.