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From: Daniel@Daniel.Games
To: gcc-gnats@gcc.gnu.org
Subject: optimization/4579: MMX : : Optimazation does not work
Date: Mon, 15 Oct 2001 18:16:00 -0000 [thread overview]
Message-ID: <200110160108.f9G18ds03501@daniel.games> (raw)
>Number: 4579
>Category: optimization
>Synopsis: MMX && Optimazation does not work
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: ice-on-legal-code
>Submitter-Id: net
>Arrival-Date: Mon Oct 15 18:16:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Daniel Jungmann
>Release: 3.1 20011015 (experimental)
>Organization:
>Environment:
System: Linux daniel 2.4.12 #2 Mon Okt 15 21:31:09 CEST 2001 i686 unknown
Architecture: i686
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc/configure
>Description:
use of MMX or 3D!Now builtins and optimazation (-O1 .. -O6) produce an "internal compiler error in simplify_gen_subreg, at simplify-rtx.c:2638"
>How-To-Repeat:
typedef __v2sf __attribute__ ((mode (V2SF)));
..
__v2sf a, b;
long long g;
g = 1;
a = (__v2sf) g;
b = a;
b = __builtin_ia32_pfadd (a, b);
g = (long long) b;
if (g == 0) printf("\n");
..
>Fix:
replace all "abort ();" with "return NULL_RTX" in function simplify_gen_subreg in file simplify-rtx.c
line 2638
line 2642
line 2646
>Release-Note:
>Audit-Trail:
>Unformatted:
next reply other threads:[~2001-10-15 18:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-15 18:16 Daniel [this message]
2001-12-01 14:16 optimization/4579: MMX && " rodrigc
2001-12-01 14:26 rodrigc
2002-06-20 9:06 hubicka
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