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 From : Eugene Korovin                       2:5080/196.72  27 Jul 2002  22:07:23
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 Subject : release notes for gcc 3.1.1
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                           release notes for gcc 3.1.1
 
      * From: Joe Buck <jbuck at synopsys dot com>
      * To: gcc at gcc dot gnu dot org
      * Date: Thu, 25 Jul 2002 09:51:04 -0700 (PDT)
      * Subject: release notes for gcc 3.1.1
      _________________________________________________________________
 
 Unless I messed up, this is the final version.
 
 --------------------------------------------------------------------
 
 Unofficial release notes for GCC 3.1.1
 
 (these release notes are a public service by a volunteer, just as for
 GCC there are no warranties)
 
 GCC 3.1.1 is a bug fix release only; other than bug fixes there are no
 new features that were not present in GCC 3.1.
 
 This document lists the problem reports (PRs) from GCC's bug tracking
 system (GNATS) that are known to be fixed in the 3.1.1 release. This
 list might not be complete (that is, it is likely that some bug fixes
 have been missed).
 
 To learn more about a particular PR, visit the link
 
         [11]http://gcc.gnu.org/cgi-bin/gnatsweb.pl
 
 and enter the PR number in the "View Problem Report" dialog box.  Then
 click the "View" button.  It's not necessary to log in to view reports.
 
 My sorting is slightly different from the GNATS categories.
 
 First, internal compiler errors (ICEs).  Some processor-specific ICEs
 appear in the processor-specific section, the following PRs are present on
 multiple platforms.
 
 6255: (c++) ICE with implicit typename in a template
 6643: ICE in assignment to var-size array
 6706: (c++) ICE generating DWARF debug for var-length array
 6723: (c++) ICE with template template parameter as default
 6809: ICE in gcc 3.1 if -fverbose-asm is specified
 6844: ICE when -dD option is specified
 6892: (c++) ICE from #include inside switch() inside template function
 7070: ICE with -Wunknown-pragmas and empty #pragma
 7112: (c++) ICE on code involving templates and sizeof (name mangling issue)
 
 C errors and optimization bugs
 
 3467: c89 violation reported with -std=c99 -pedantic (var-size array)
 6517: gcc hangs on C compile with multiple "-I-"
 6660: typedef'd unnamed structs/unions don't compile with gcc 3.1
 6677: bug in signed char treatment
 6722: global register hoisted out of loop containing a call
 6780: incorrect diagnosis of token pasting
 6793: varargs function inlined inappropriately
 7030: incorrect DWARF debug info emitted
 
 C++ errors:
 
  189: DR 259: issue with explicit template instantiation (SEE NOTE BELOW)
 6381: Missing assembler label when -g is given (DWARF issue)
 6611: Non-weak emission of std::__default_alloc_template, should be weak
 6641: Problems with redefinition of __USE_MALLOC (SEE NOTE BELOW)
 6695: regression: template friend declaration doesn't work
 6716: loop and fill ram during compiling
 6747: C++ rejects inline assembly, C works
 6944: default copy constructor doesn't work with multi-dimensional arrays
 7145: g++ -O with struct initializer and return value opt generates bad code
 7224: no diagnostic for unused ambiguous inline member functions
 7279: gcc 3.1 named return value related miscompilation
 
 libstdc++ errors:
 
 3946: auto_ptr_ref constructor allows dangerous conversion
 6282: bitset<0> results in nonsense behavior
 6518: ostream << operator crashes when given a null pointer
 6594: strstreambuf leaks 16 bytes - gcc 3.0.x
 6648: interactive cin.getline(): need to type "return" twice
 6701: do_narrow on range is fubar
 6795: stringbuf failure: segfault during >> after first underflow
 6811: Missing 'return *this' in __enc_traits assignment operator in gcc 3.1
 6886: bit vector iterator uses wrong 1 constant (affects 64-bit platforms)
 7057: Operator== on hashtables doesn't appear to work correctly
 7097: _GLIBCPP_HAVE_MBSTATE_T breaks non-GLIB systems
 7173: _GLIBCPP_VERSION expands to an empty string in gcc 3.1
 
 Objective-C:
 
 6834: gcc 3.1 wrongly compiles some GNUstep code
 
 Java compiler and library:
 
 2388: Cannot compile libgcj on case insensitive file system
 7292: java.lang.Character.toString(char) should be static
 
 Platform-specific bugs:
 
 ix86-specific:
 
 6753: gcc 3.1 produces wrong code with -march=pentium4 -ffast-math
 7010: Bug in gcc 3.1 with inline memcpy on i386 (affects Mozilla)
 7245: ICE in find_reloads
 
 sparc-specific:
 
 6103: sparc-sun-solaris2.7 gcc 3.1 extra testsuite failures with -m64
 6759: ICE when compiling 32-bit Sparc code
 6788: mult inheritance "non-virtual thunk" assembly wrong for sparc64
 6841: ICE for gcc 3.1 (building openssh) with -mcpu=ultrasparc -O3
 6922: ICE for gcc 3.1 (building LAME) with -mcpu=ultrasparc
 7012: (libstdc++) istringstream cannot read integers on Solaris 2.5.1 and 2.6
 
 PowerPC specific:
 
 6615: PPC: insn does not satisfy its constraints
 7147: if-convert problem (regression: affects mozilla compilation)
 7282: (powerpc64-linux) unrecognizable insn
 
 IBM s390x specific:
 
 6963: Linux kernel for s390x miscompiled
 
 CRIS specific (CRIS is an embedded processor):
 
 6838: cris-elf ICE (gcc 3.1)
 6997: cris: compare result incorrect, sleu pattern in cris.md bad
 7042: cris-elf miscompiles line_hints in ghostscript
 7177: cris-axis-elf: ICE at -O2, unrecognized insn
 
 PRs reported against the release CVS branch, but not present in any GCC
 release (including 3.1.1):
 
 6750 (libstdc++) ofstream incorrectly sets failbit (severe regression)
 6822 (i586) ICE in extract_insn, at recog.c:2132
 
 Additional notes on some PRs:
 
 PR 189:
       There was an issue in the C++ language standard with respect to explicit
       and implicit instantiation of the same template (defect report #259).
       gcc 3.1.1 implements the resolution proposed to the ISO C++
       committee by Matt Austern, which will probably become official (see
       [12]http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/cwg_defects.html#259 )
 
 PR 6641:
       In gcc 3.x, it is not supported to define __USE_MALLOC (to suppress
       the use of allocators in the standard template library classes) unless
       libstdc++ itself is rebuilt with __USE_MALLOC defined.  gcc 3.1.1
       will detect attempts to link together inconsistent code and issue
       a diagnostic (in earlier 3.x versions a link failure or even a
       crash might result, from using a different allocation method for
       allocation and freeing).
 
       Note that in gcc 2.x it was possible to redefine __USE_MALLOC
       without rebuilding libstdc++, since no code in the library itself
       (as opposed to header files) depended on this symbol, although even
       then it was error-prone (all program units that instantiated a given
       template needed to agree on the __USE_MALLOC definition), and if
       users were not careful similar crashes could result.
 
       There is work in progress to provide a cleaner solution for users
       who need finer-tuned control over the default allocation strategy,
       though it is not known when it will be available.
 
      _________________________________________________________________
 
      * Follow-Ups:
           + [13]Re: release notes for gcc 3.1.1
                o From: Gerald Pfeifer
 
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