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Re: Status of SEE and Autovectorization patches?

From: Andreas Jaeger <aj at suse dot de>
To: Roger Sayle <roger at eyesopen dot com>
Cc: Mircea Namolaru <NAMOLARU at il dot ibm dot com>, Mark Mitchell <mark at codesourcery dot com>, Ayal Zaks <ZAKS at il dot ibm dot com>, gcc mailing list <gcc at gcc dot gnu dot org>, <gcc-patches at gcc dot gnu dot org>, "H. J. Lu" <hjl at lucon dot org>, <leehod at gmail dot com>, Leehod Baruch <leehod dot baruch at weizmann dot ac dot il>, Richard Henderson <rth at redhat dot com>
Date: Sat, 06 May 2006 21:09:44 +0200
Subject: Re: Status of SEE and Autovectorization patches?
Openpgp: id=C272A126; url=http://www.suse.de/~aj/keys.txt
References: <Pine.LNX.4.44.0605050658420.26446-100000@www.eyesopen.com>

I see lots of failures running the testsuite on x86-64 now:

one example:

FAIL: gcc.c-torture/compile/20000120-2.c  -O3 -fomit-frame-pointer  (test for excess error
s)
Excess errors:
/cvs/gcc-svn/trunk/gcc/testsuite/gcc.c-torture/compile/20000120-2.c:11: internal compiler
error: RTL check: expected code 'subreg', have 'mem' in see_get_extension_data, at see.c:7
37

This leads to 541 failures for the gcc testsuite (other testsuites
show similar problems):

                === gcc Summary for unix ===

# of expected passes            38421
# of unexpected failures        541
# of unexpected successes       2
# of expected failures          121
# of unresolved testcases       338
# of untested testcases         28
# of unsupported tests          377

Configured with: /cvs/gcc-svn/trunk/configure --prefix=/opt/gcc/4.2-devel --enable-checking=yes,rtl --enable-threads=posix --enable-clocale=gnu --enable-__cxa_atexit --enable-shared --enable-languages=c,c++,ada,treelang,java,fortran,objc --with-system-zlib x86_64-suse-linux-gnu

This really has to be fixed, IMHO the optimization does not seem to be
ready for stage 3,

Andreas
-- 
 Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj/
  SUSE Linux Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
   GPG fingerprint = 93A3 365E CE47 B889 DF7F  FED1 389A 563C C272 A126

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References:
- Re: Status of SEE and Autovectorization patches?
  - From: Roger Sayle

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