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trevithick:~/stingray/test/data_structures$ gcc-3.2 -v -c -W -Wall -pedantic --save-temps bug0.cpp Reading specs from /usr/lib/gcc-lib/i386-linux/3.2.1/specs Configured with: /home/packages/gcc/3.2/gcc-3.2-3.2.1ds5/src/configure -v --enable-languages=c,c++,java,f77,proto,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 i386-linux Thread model: posix gcc version 3.2.1 20021111 (Debian prerelease) /usr/lib/gcc-lib/i386-linux/3.2.1/cpp0 -lang-c++ -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -v -D__GNUC__=3 -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=1 -D__GXX_ABI_VERSION=102 -D__ELF__ -Dunix -D__gnu_linux__ -Dlinux -D__ELF__ -D__unix__ -D__gnu_linux__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i386__ bug0.cpp -W -Wall -pedantic bug0.ii GNU CPP version 3.2.1 20021111 (Debian prerelease) (cpplib) (i386 Linux/ELF) ignoring nonexistent directory "/usr/i386-linux/include" #include "..." search starts here: #include <...> search starts here: /usr/include/c++/3.2 /usr/include/c++/3.2/i386-linux /usr/include/c++/3.2/backward /usr/local/include /usr/lib/gcc-lib/i386-linux/3.2.1/include /usr/include End of search list. /usr/lib/gcc-lib/i386-linux/3.2.1/cc1plus -fpreprocessed bug0.ii -quiet -dumpbase bug0.cpp -W -Wall -pedantic -version -o bug0.s GNU CPP version 3.2.1 20021111 (Debian prerelease) (cpplib) (i386 Linux/ELF) GNU C++ version 3.2.1 20021111 (Debian prerelease) (i386-linux) compiled by GNU C version 3.2.1 20021111 (Debian prerelease). bug0.cpp: In member function `void BadgerBuf::ReadPod() [with B = int]': bug0.cpp:10: instantiated from here bug0.cpp:10: Internal compiler error in tsubst_expr, at cp/pt.c:7644 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions. Release: GNU C++ version 3.2.1 20021111 (Debian prerelease) (i386-linux) Environment: Linux trevithick 2.4.16 #2 Mon Dec 10 15:54:50 GMT 2001 i686 unknown unknown GNU/Linux How-To-Repeat: Source is: struct BadgerBuf { void ReadPod(); template<class B> void ReadPod(); }; void BadgerBuf::ReadPod () { ReadPod<int> (); } Adding this-> to the call to ReadPod<int> doesn't change the behaviour. Nor does "this->template ". Putting brackets round the (ReadPod<int>) part causes a different error: bug0.cpp: In member function `void BadgerBuf::ReadPod()': bug0.cpp:10: internal 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. Swapping the order of the declarations avoids the problem. Unless you've left the brackets around (ReadPod<int>) in which case it still segfaults. If you leave the declarations swapped but add another template between the class definition and the function definition, like so: struct BadgerBuf { template<class B> void ReadPod(); void ReadPod(); }; template <class T> struct Predicate {}; void BadgerBuf::ReadPod () { ReadPod<int> (); } Then you get different behaviour again: bug0.cpp: In member function `void BadgerBuf::ReadPod()': bug0.cpp:14: parse error before `>' token Perhaps I should have submitted these as separate bugs - but I can always do that later if they turn out to be unrelated.
State-Changed-From-To: open->analyzed State-Changed-Why: Confirmed. At least one case has been fixed on mainline in the meantime (but is still present in 3.2.1), namely the last one you mention (with parentheses, declarations swapped): struct BadgerBuf { template<class B> void ReadPod(); void ReadPod(); }; void BadgerBuf::ReadPod () { (ReadPod<int>) (); } However, the other ICEs still exist. I can reproduce all these ICEs with 2.95, so it is not a regression, although I would love to see this fixed soon anyway since it seems like a not so uncommon idiom.
From: Volker Reichelt <reichelt@igpm.rwth-aachen.de> To: gcc-gnats@gcc.gnu.org, martin.dorey@bluearc.com, gcc-bugs@gcc.gnu.org Cc: Subject: Re: c++/8660: template overloading ICE in tsubst_expr, at cp/pt.c:7644 Date: Wed, 22 Jan 2003 12:08:47 +0100 Two bugs (the one with the parentheses, and the one with the additional template) have been fixed in 3.3 branch and mainline. That leaves us with the first ICE. This, however is a regression, since gcc 3.0.x did compile the code (gcc issued an ICE, though). Regards, Volker http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8660
Responsible-Changed-From-To: unassigned->jason Responsible-Changed-Why: got it
From: jason@gcc.gnu.org To: gcc-gnats@gcc.gnu.org Cc: Subject: c++/8660 Date: 11 Mar 2003 10:33:29 -0000 CVSROOT: /cvs/gcc Module name: gcc Changes by: jason@gcc.gnu.org 2003-03-11 10:33:29 Modified files: gcc/cp : ChangeLog decl2.c Log message: PR c++/8660 * decl2.c (check_classfn): A member template only matches a member template. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3260&r2=1.3261 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl2.c.diff?cvsroot=gcc&r1=1.602&r2=1.603
From: jason@gcc.gnu.org To: gcc-gnats@gcc.gnu.org Cc: Subject: c++/8660 Date: 11 Mar 2003 10:34:10 -0000 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_3-branch Changes by: jason@gcc.gnu.org 2003-03-11 10:34:10 Modified files: gcc/cp : ChangeLog decl2.c Log message: PR c++/8660 * decl2.c (check_classfn): A member template only matches a member template. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.3076.2.73&r2=1.3076.2.74 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl2.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.575.2.14&r2=1.575.2.15
From: jason@gcc.gnu.org To: gcc-gnats@gcc.gnu.org Cc: Subject: c++/8660 Date: 11 Mar 2003 10:34:31 -0000 CVSROOT: /cvs/gcc Module name: gcc Changes by: jason@gcc.gnu.org 2003-03-11 10:34:31 Added files: gcc/testsuite/g++.dg/template: member2.C Log message: PR c++/8660 * decl2.c (check_classfn): A member template only matches a member template. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/member2.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
From: jason@gcc.gnu.org To: gcc-gnats@gcc.gnu.org Cc: Subject: c++/8660 Date: 11 Mar 2003 10:34:45 -0000 CVSROOT: /cvs/gcc Module name: gcc Changes by: jason@gcc.gnu.org 2003-03-11 10:34:45 Modified files: gcc/testsuite/g++.old-deja/g++.mike: err1.C Log message: PR c++/8660 * decl2.c (check_classfn): A member template only matches a member template. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.old-deja/g++.mike/err1.C.diff?cvsroot=gcc&r1=1.2&r2=1.3
From: jason@gcc.gnu.org To: gcc-gnats@gcc.gnu.org Cc: Subject: c++/8660 Date: 11 Mar 2003 10:35:00 -0000 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_3-branch Changes by: jason@gcc.gnu.org 2003-03-11 10:35:00 Modified files: gcc/testsuite/g++.old-deja/g++.mike: err1.C Log message: PR c++/8660 * decl2.c (check_classfn): A member template only matches a member template. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.old-deja/g++.mike/err1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2&r2=1.2.74.1
State-Changed-From-To: analyzed->closed State-Changed-Why: fixed