GCC Bugzilla Bug 10695

ICE while building wordsedit.cpp of agistudio 1.1 on alpha, happens with 2.95,
3.2.3, and 3.3.

g++ -c -pipe -Wall -W -g -D_REENTRANT -DQT_THREAD_SUPPORT -I/usr/include/qt3
-I/usr/include/qt -o wordsedit.o wordsedit.cpp
wordsedit.cpp: In member function `void WordsEdit::merge_file()':
wordsedit.cpp:620: Internal compiler error in dwarf2out_frame_debug_expr, at
dwarf2out.c:1328
Please submit a full bug report,

2.95 includes this as well, 3.2 and 3.3 don't:
{standard input}: Assembler messages:
{standard input}:9212: Warning: missing .end or .bend at end of file

Release:
3.2.3, 3.3 20030410 (prerelease), 2.95.4 20011002 (Debian prerelease)

Environment:
Reading specs from /usr/lib/gcc-lib/alpha-linux/3.2.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,objc,ada
--prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info
--with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib
--enable-nls --without-included-gettext --enable-__cxa_atexit
--enable-clocale=gnu --enable-java-gc=boehm --enable-objc-gc alpha-linux
Thread model: posix

From: Falk Hueffner <falk.hueffner@student.uni-tuebingen.de>
To: rmurray@debian.org
Cc: gcc-gnats@gcc.gnu.org, 192568@bugs.debian.org
Subject: Re: c++/10695: 2.95/3.2/3.3: ICE on alpha while building agistudio
Date: 09 May 2003 17:54:03 +0200

 rmurray@debian.org writes:
 
 > g++ -c -pipe -Wall -W -g -D_REENTRANT -DQT_THREAD_SUPPORT -I/usr/include/qt3 -I/usr/include/qt -o wordsedit.o wordsedit.cpp
 > wordsedit.cpp: In member function `void WordsEdit::merge_file()':
 > wordsedit.cpp:620: Internal compiler error in dwarf2out_frame_debug_expr, at dwarf2out.c:1328
 > Please submit a full bug report,
 
 This is acually a bug in the Debian package, because the file isn't
 compiled with -O2 as policy mandates, and the error only occurs at -O0
 ;)
 
 Here's a test case:
 
 struct WordList {
     char c[320000];
 };
 
 void merge(struct WordList);
 
 void merge_file()
 {
     struct WordList w;
     merge(w);
 }
 
 The problem is still there in g++ 3.4 20030423. It also occurs with
 gcc -g.
 
 The author should probably also consider not passing 320k large
 structures by value...
 
 -- 
 	Falk

Don't know why bugzilla doesn't consider this confirmed... BTW, doesn't this
bug more likely 
belong under "target"? Thanks,

Dara

still happens with 3.3.1

Still present on mainline.

Still present on tree-ssa.

Subject: Bug 10695

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	rth@gcc.gnu.org	2004-08-26 09:05:33

Modified files:
	gcc            : ChangeLog 
	gcc/config/alpha: alpha.c 

Log message:
	PR debug/10695
	* config/alpha/alpha.c (emit_frame_store_1, emit_frame_store): New.
	(alpha_expand_prologue): Handle >32-bit frames.  Generate proper
	unwind info for >16-bit frames.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.597&r2=2.2326.2.598
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/alpha/alpha.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.342.4.10&r2=1.342.4.11

Subject: Bug 10695

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rth@gcc.gnu.org	2004-08-26 09:08:12

Modified files:
	gcc            : ChangeLog 
	gcc/config/alpha: alpha.c 

Log message:
	PR debug/10695
	* config/alpha/alpha.c (emit_frame_store_1, emit_frame_store): New.
	(alpha_expand_prologue): Handle >32-bit frames.  Generate proper
	unwind info for >16-bit frames.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5101&r2=2.5102
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/alpha/alpha.c.diff?cvsroot=gcc&r1=1.391&r2=1.392

Fixed.

No, really.  Fixed.