Re: c/8962: "-O2 -mmmx" makes gcc seg fault

["Mack Lobell" <macklobell at hotmail dot com>]

The following reply was made to PR c/8962; it has been noted by GNATS.

From: "Mack Lobell" <macklobell@hotmail.com>
To: bangerth@dealii.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, macklobell@hotmail.com, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Cc:  
Subject: Re: c/8962: "-O2 -mmmx" makes gcc seg fault
Date: Sat, 21 Dec 2002 15:42:41 +0000

 Hi,
 
 did the following:
 *** downloaded tar from PR
 *** untared to ~/gcc_test
 
 lobell@VOLVO ~/gcc_test
 $ pwd
 /home/lobell/gcc_test
 
 lobell@VOLVO ~/gcc_test
 $ ls -al
 total 873
 drwxrwxrwx+   2 lobell   None            0 Dec 21 16:23 .
 drwxrwxrwx+   8 lobell   None            0 Dec 21 16:21 ..
 -rw-rw-rw-    1 lobell   None       893508 Dec 16 15:32 expr.i
 
 
 *** Compiled with cygwin provided compiler ***
 
 lobell@VOLVO ~/gcc_test
 $ gcc -c -O2 -mmmx expr.i
 
 lobell@VOLVO ~/gcc_test
 $ ls -al
 total 1072
 drwxrwxrwx+   2 lobell   None            0 Dec 21 16:28 .
 drwxrwxrwx+   8 lobell   None            0 Dec 21 16:21 ..
 -rw-rw-rw-    1 lobell   None       893508 Dec 16 15:32 expr.i
 -rw-rw-rw-    1 lobell   None       202986 Dec 21 16:28 expr.o
 
 lobell@VOLVO ~/gcc_test
 $ gcc -v
 Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/3.2/specs
 Configured with: /netrel/src/gcc-3.2-3/configure 
 --enable-languages=c,c++,f77,java --enable-libg
 cj --enable-threads=posix --with-system-zlib --enable-nls 
 --without-included-gettext --enable-in
 terpreter --disable-sjlj-exceptions --disable-version-specific-runtime-libs 
 --enable-shared --bu
 ild=i686-pc-linux --host=i686-pc-cygwin --target=i686-pc-cygwin 
 --enable-haifa --prefix=/usr --e
 xec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib 
 --includedir=/nonexistent/include --libexecd
 ir=/usr/sbin
 Thread model: posix
 gcc version 3.2 20020927 (prerelease)
 
 
 *** Compiled with gcc current ***
 
 lobell@VOLVO ~/gcc_test
 $ /usr/local/native/bin/gcc.exe -c -O2 -mmmx expr.i
 /home/lobell/src/gcc-20021202/gcc/expr.c: In function `expand_expr':
 /home/lobell/src/gcc-20021202/gcc/expr.c:9306: internal compiler error: 
 Segmentation fault
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
 
 lobell@VOLVO ~/gcc_test
 $ /usr/local/native/bin/gcc.exe -v
 Reading specs from 
 /usr/local/native/bin/../lib/gcc-lib/i686-pc-cygwin/3.3/specs
 Configured with: /home/lobell/src/gcc/configure --prefix=/usr/local/native/ 
 --enable-languages=c
 ,c++ --disable-nls
 Thread model: single
 gcc version 3.3 20021211 (experimental)
 
 
 If you want, i can download the latest src and build a new gcc.exe? Or i 
 could configure the src i have another way?
 
 Your call, i'm no gcc expert :(
 
 Regards.
 
 
 
 
 
 >From: bangerth@dealii.org
 >Reply-To: bangerth@dealii.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org,  
 >macklobell@hotmail.com, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
 >To: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, macklobell@hotmail.com,  
 >nobody@gcc.gnu.org
 >Subject: Re: c/8962: "-O2 -mmmx" makes gcc seg fault
 >Date: 21 Dec 2002 04:32:40 -0000
 >
 >Synopsis: "-O2 -mmmx" makes gcc seg fault
 >
 >State-Changed-From-To: open->feedback
 >State-Changed-By: bangerth
 >State-Changed-When: Fri Dec 20 20:32:39 2002
 >State-Changed-Why:
 >     I tried to reproduce the problem with the file you attached
 >     and -O2 -mmmx as you describe, but I failed. However, I have
 >     two differences:
 >     - I am on x86 linux
 >     - I am using a CVS from 20021213
 >     Could you possibly check whether you get the same problem
 >     again also with the file attached to this report?
 >
 >     (On another note: the compiler that fails is 
 >actually/usr/local/native/bin/gcc.exe, if I see correctly. What
 >     version is this?)
 >
 >     Thanks
 >       Wolfgang
 >
 >http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8962
 
 
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