[Bug middle-end/15855] [3.4/4.0/4.1 Regression] g++ crash with -O2 and -O3 on input file

["wilson at specifix dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From wilson at specifix dot com  2005-08-12 19:07 -------
Subject: Re:  [3.4/4.0/4.1 Regression] g++ crash with
 -O2 and -O3 on input file

phython at gcc dot gnu dot org wrote:
> ------- Additional Comments From phython at gcc dot gnu dot org  2005-08-12 06:21 -------
>  On ia64-linux postreload-gcse does exactly nothing and takes 35% of the compile
> time at -O1 -fgcse-after-reload.  I didn't finish a build at -O2.

What testcase and compiler version are you using for this?  I tried 
taking a look, but wasn't able to reproduce any problem.  I was able to 
compile both testcases in the PR at -O2 in about 20 secs and about 200MB.

Both testcases in the PR have issues.  The first one generates lots of 
errors from the C++ front end, and doesn't actually end up doing much 
compiling.  The second one wants a non-existent expat.h file and is thus 
uncompilable without changes.  If I delete the include of the missing 
expat.h file, then again I get C++ front end errors and little compilation.

I tried various gcc versions, 4.0.x, mainline, 3.3.x, but I got the same 
result from all of them.

Maybe you have a copy of the missing expat.h file?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15855