[Bug target/66930] [5 Regression]: gengtype.c is miscompiled during stage2

["olegendo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66930

--- Comment #13 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Kazumoto Kojima from comment #12)
> 
> --- a/config/sh/sh-protos.h
> +++ b/config/sh/sh-protos.h
> @@ -198,7 +198,7 @@ sh_find_set_of_reg (rtx reg, rtx_insn* insn, F stepfunc,
>      {
>        if (BARRIER_P (result.insn))
>  	break;
> -      if (!NONJUMP_INSN_P (result.insn))
> +      if (!NONJUMP_INSN_P (result.insn) && !CALL_P (result.insn))
>  	continue;
>        if (reg_set_p (reg, result.insn))
>  	{
> 
> and it works like as my expectation, though I'm not sure whether it's
> a "right thing" or not.

This would be OK for hardregs (which are clobbered by calls).  When working on
pseudos, it's actually OK to ignore calls.  Maybe it'd be a good idea to extend
sh_find_set_of_reg to check for call clobbered hardregs only.  This will make
the function easier to use.
>From gcc-bugs-return-493160-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Jul 24 04:48:30 2015
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From: "naveenh at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/25529] (unsigned * 2)/2 is not changed into unsigned &0x7FFFFFFF
Date: Fri, 24 Jul 2015 04:48:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id%529

--- Comment #2 from naveenh at gcc dot gnu.org ---
Author: naveenh
Date: Fri Jul 24 04:47:48 2015
New Revision: 226136

URL: https://gcc.gnu.org/viewcvs?rev"6136&root=gcc&view=rev
Log:
PR middle-end/25529
2015-07-24  Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>

gcc/testsuite/ChangeLog:
        * gcc.dg/pr25529.c: New test.

gcc/ChangeLog:
        * match.pd (trunc_div (mult @0 integer_pow2p@1) @1) : New simplifier.


Added:
    trunk/gcc/testsuite/gcc.dg/pr25529.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog