Index: htdocs/gcc-3.2/changes.html =================================================================== RCS file: /usr/local/src/cvs/gcc-cvs/wwwdocs/htdocs/gcc-3.2/changes.html,v retrieving revision 1.43 diff -u -r1.43 changes.html --- htdocs/gcc-3.2/changes.html 6 Feb 2003 13:40:39 -0000 1.43 +++ htdocs/gcc-3.2/changes.html 6 Feb 2003 23:40:58 -0000 @@ -10,92 +10,33 @@ -

GCC 3.2 Release Series — Changes, New Features, and Fixes

+ -

The purpose of this release series is to provide a stable platform for OS -distributors to use building their next releases. A primary objective was -to stabilize the C++ ABI; we believe that the interface to the compiler and -the C++ standard library are now relatively stable.

- -

Be aware that C++ code compiled by GCC 3.2.x will (in general) not -interoperate with code compiled by GCC 3.1.1 or earlier.

- -

Caveats

The C++ compiler does not correctly zero-initialize - pointers-to-data members. You must explicitly initialize - them. For example: int S::*m(0); - will work, but depending on default-initialization to zero - will not work. This bug cannot be fixed in GCC 3.2 without - inducing unacceptable risks. It will be fixed in GCC 3.3.
This GCC release is based on the GCC 3.1 sourcebase, and thus has - all the changes in the GCC 3.1 - series. In addition, GCC 3.2 has a number of C++ ABI fixes - which make its C++ compiler generate binary code which is incompatible - with the C++ compilers found in earlier GCC releases, including GCC 3.1 - and GCC 3.1.1.

- -

Frontend Enhancements

C/C++/Objective-C
-
- The method of constructing the list of directories to be searched - for header files has been revised. If a directory named by a - -I option is a standard system include directory, - the option is ignored to ensure that the default search order - for system directories and the special treatment of system header - files are not defeated.
- The C and Objective-C compilers no longer accept the "Naming - Types" extension (typedef foo = bar); it was - already unavailable in C++. Code which uses it will need to - be changed to use the "typeof" extension instead: - typedef typeof(bar) foo. (We have removed this - extension without a period of deprecation because it has - caused the compiler to crash since version 3.0 and no one - noticed until very recently. Thus we conclude it is not in - widespread use.)
C++
-
- There are now no known differences between the C++ ABI - implemented in GCC and the multi-vendor standard. We believe that - the ABI for the C++ standard library is now stable and will not - change in future versions of the compiler. However, hard - experience has taught us to be cautious; it is possible that more - problems will be found. It is our intention to make changes to - the ABI only if they are necessary for correct compilation of C++, - as opposed to conformance to the ABI documents.
- For details on how to build an ABI compliant compiler for - GNU/Linux systems, check the common C++ ABI - page.
-

- -

New Targets and Target Specific Improvements

IA-32
-
- Fixed a number of bugs in SSE and MMX intrinsics.
- Fixed common compiler crashes with SSE instruction set enabled - (implied by -march=pentium3, pentium4, - athlon-xp)
- __m128 and __m128i is not 128bit - aligned when used in structures.
x86-64
-
- A bug whereby the compiler could generate bad code for - bzero has been fixed.
- ABI fixes (implying ABI incompatibilities with previous version in some - corner cases)
- Fixed prefetch code generation
-

GCC 3.2 Release Series — Relative Changes

- +

Release History

+ +

February 5, 2003: The GNU project and the GCC + developers are pleased to announce the release of GCC 3.2.2. + News and bugfix lists can be found in the respective + Changes section.
November 19, 2002: The GNU project and the GCC + developers are pleased to announce the release of GCC 3.2.1. + Please take a look at the Changes + section for further information.
August 14, 2002: The GNU project and the GCC + developers are pleased to announce the release of GCC 3.2. + The Changes section contains + important information about this release.

GCC 3.2.2

+ +

GCC 3.2.2

Beginning with 3.2.2, GCC's Makefile suite supports redirection of make install by means of the DESTDIR @@ -105,7 +46,7 @@

Other than that, GCC 3.2.2 is a bug fix release only; there are no new features that were not present in GCC 3.2.1.

Bug Fixes

This section lists the problem reports (PRs) from GCC's bug tracking system (GNATS) that are known to be fixed in the 3.2.2 release. This @@ -116,7 +57,7 @@ the titles have been changed to make them more clear.

Internal Compiler Errors (multi-platform)
+
Internal Compiler Errors (multi-platform)
- 5919: (c++) ICE when passing variable array to template function
- 7129: (c++) ICE with min/max assignment operators (<?= and >?=)
- 9328: (c++) ICE with typeof(X) for overloaded X
- 9465: (preprocessor) cpp -traditional ICE on null bytes
C++ (compiler and library) bugs
+
C++ (compiler and library) bugs
- 47: scoping in nested classes is broken
- 6745: problems with iostream rdbuf() member function
- 9322: return value of basic_streambuf<>::getloc affected by locale::global
- 9433: segfault in runtime support for dynamic_cast
C and optimizer bugs
+
C and optimizer bugs
- 8032: GCC incorrectly initializes static structs that have flexible arrays
- 8639: simple arithmetic expression broken
- 8988: loop optimizer bug: with -O2, code is generated that segfaults (found on i386, bug present for all platforms)
- 9492: structure copy clobbers subsequent stores to structure
Objective-C bugs
+
Objective-C bugs
- 9267: Objective-C parser won't build with newer bison versions (e.g. 1.875)
Ada bugs
+
Ada bugs
- 8344: Ada build problem due to conflict between gcc/final.o, gcc/ada/final.o
Preprocessor bugs
+
Preprocessor bugs
- 8524: _Pragma within macros is improperly expanded
- 8880: __WCHAR_TYPE__ macro incorrectly set to "long int" with -fshort-wchar
ARM-specific
+
ARM-specific
- 9090: arm ICE with >= -O2; regression from gcc-2.95
x86-specific (Intel/AMD)
+
x86-specific (Intel/AMD)
- 8588: ICE in extract_insn, at recog.c:NNNN (shift instruction)
- 8599: loop unroll bug with -march=k6-3
- 9506: ABI breakage in structure return (affects BSD and Cygwin, but not GNU/Linux)
FreeBSD 5.0 specific
+
FreeBSD 5.0 specific
- 9484: GCC 3.2.1 Bootstrap failure on FreeBSD 5.0
RTEMS-specific
+
RTEMS-specific
- 9292: hppa1.1-rtems configurery problems
- 9293: [m68k-elf/rtems] config/m68k/t-crtstuff bug
- 9296: gthr-rtems regression
- 9316: powerpc-rtems: extending multilibs
HP-PA specific
+
HP-PA specific
- 9493: ICE with -O2 when building a simple function
Documentation
+
Documentation
- 7341: hyperlink to gcov in GCC documentation doesn't work
- 8947: Please add a warning about "-malign-double" in docs

GCC 3.2.1

+ +

GCC 3.2.1

3.2.1 adds a new warning, -Wabi. This option warns when GNU C++ generates code that is known not to be binary-compatible with the @@ -236,7 +179,7 @@ applications) was reverted ("unfixed"), because the "fix" was not thread-safe.

Bug Fixes

This section lists the problem reports (PRs) from GCC's bug tracking system (GNATS) that @@ -247,7 +190,7 @@ GCC 3.2.1.

Internal Compiler Errors (multi-platform)
+
Internal Compiler Errors (multi-platform)
- 2521: (c++) ICE in build_ptrmemfunc, in cp/typeck.c
- 5661: (c++) ICE instantiating template on array of unknown size (bad code)
- 8160: (c++) ICE in build_modify_expr, in cp/typeck.c: array initialization
C++ (compiler and library) bugs
+
C++ (compiler and library) bugs
- 5607: No pointer adjustment in covariant return types
- 6579: Infinite loop with statement expressions in member initialization
- 8348: fail() flag is set in istringstream when eof() flag is set
- 8391: regression: infinite loop in cp/decl2.c(finish_file)
C and optimizer bugs
+
C and optimizer bugs
- 6627: -fno-align-functions doesn't seem to disable function alignment
- 6631: life_analysis misoptimizes code to initialize fields of a structure
- 7814: incorrect scheduling for glibc-2.2.92 strcpy test
- 8467: bug in sibling call optimization
Preprocessor bugs
+
Preprocessor bugs
- 4890: incorrect line markers from the traditional preprocessor
- 7357: -M option omits system headers files (making it the same as -MM)
- 8190: Failed compilation deletes -MD dependency file
- 8524: _Pragma within macro is improperly expanded
x86 specific (Intel/AMD)
+
x86 specific (Intel/AMD)
- 5351: (i686-only) function pass-by-value structure copy corrupts stack (7591 is a duplicate)
- 7951: ICE on -march=pentium4 -O2 -mfpmath=sse
- 8146: (i686 only) gcc 3.2 miscompiles gcc 2.95.3
PowerPC specific
+
PowerPC specific
- 5967: GCC bug when profiling nested functions on powerpc
- 6984: wrong code generated with -O2, -O3, -Os for do-while loop on PowerPC
- 8252: ICE on Altivec code with optimization turned on
- 8451: Altivec ICE in GCC 3.2
HP/PA specific
+
HP/PA specific
- 7250: __ashrdi3 returns wrong value on 32 bit hppa
SPARC specific
+
SPARC specific
- 6668: when using --disable-multilib, libgcc_s.so is installed in the wrong place on sparc-solaris
- 7151: ICE when compiling for UltraSPARC
- 7335: SPARC: ICE in verify_wide_reg (flow.c:557) with long double and -O1
- 7842: [REGRESSION] SPARC code gen bug
ARM specific
+
ARM specific
- 7856: [arm] invalid offset in constant pool reference
- 7967: optimization produces wrong code (ARM)
Alpha specific
+
Alpha specific
- 7374: __builtin_fabsl broken on alpha
IBM s390 specific
+
IBM s390 specific
- 7370: ICE in fixup_var_refs_1 on s390x
- 7409: loop optimization bug on s390x-linux-gnu
- 8232: s390x: ICE when using bcmp with int length argument
SCO specific
+
SCO specific
- 7623: SCO OpenServer build fails with machmode.def: undefined symbol: BITS_PER_UNIT
m68k/Coldfire specific
+
m68k/Coldfire specific
- 8314: crtbegin, crtend need to be multilib'ed for this platform
Documentation
+
Documentation
- 761: Document some undocumented options
- 5610: Fix documentation about invoking SSE instructions (-mfpmath=sse)

GCC 3.2

+ +

GCC 3.2

3.2 is a small bug fix release, but there is a change to the application binary interface (ABI), hence the change to the second part of the version @@ -406,16 +351,16 @@ the C++ ABI, with the intention of providing a stable interface going forward. Accordingly, 3.2 is only a small change to 3.1.1.

Bug Fixes

C++
+
C++
- 7320: g++ 3.2 relocation problem
- 7470: vtable: virtual function pointers not in declaration order
libstdc++
+
libstdc++
- 6410: Trouble with non-ASCII monetary symbols and wchar_t
- 6503, @@ -429,7 +374,7 @@
- 7445: poor performance of std::locale::classic() in multi-threaded applications
x86-64 specific
+
x86-64 specific
- 7291: off-by-one in generated inline bzero code for x86-64

GCC 3.2

GCC 3.2 Release Series — New Features and Major Changes

The current release in the GCC 3.2 series is -GCC 3.2.2.

A detailed description of this series and its releases is given +GCC 3.2.2.

A detailed description of changes and bugfixes by each release is given on the Changes page.

Release History

February 5, 2003: The GNU project and the GCC - developers are pleased to announce the release of GCC 3.2.2. - News and bugfix lists can be found in the respective - Changes section.
November 19, 2002: The GNU project and the GCC - developers are pleased to announce the release of GCC 3.2.1. - Please take a look at the Changes - section for further information.
August 14, 2002: The GNU project and the GCC - developers are pleased to announce the release of GCC 3.2. - The Changes section contains - important information about this release.

The purpose of this release series is to provide a stable platform for OS +distributors to use building their next releases. A primary objective was +to stabilize the C++ ABI; we believe that the interface to the compiler and +the C++ standard library are now relatively stable.

Be aware that C++ code compiled by GCC 3.2.x will (in general) not +interoperate with code compiled by GCC 3.1.1 or earlier.

Caveats

The C++ compiler does not correctly zero-initialize + pointers-to-data members. You must explicitly initialize + them. For example: int S::*m(0); + will work, but depending on default-initialization to zero + will not work. This bug cannot be fixed in GCC 3.2 without + inducing unacceptable risks. It will be fixed in GCC 3.3.
This GCC release is based on the GCC 3.1 sourcebase, and thus has + all the changes in the GCC 3.1 + series. In addition, GCC 3.2 has a number of C++ ABI fixes + which make its C++ compiler generate binary code which is incompatible + with the C++ compilers found in earlier GCC releases, including GCC 3.1 + and GCC 3.1.1.

Frontend Enhancements

C/C++/Objective-C
+
- The method of constructing the list of directories to be searched + for header files has been revised. If a directory named by a + -I option is a standard system include directory, + the option is ignored to ensure that the default search order + for system directories and the special treatment of system header + files are not defeated.
- The C and Objective-C compilers no longer accept the "Naming + Types" extension (typedef foo = bar); it was + already unavailable in C++. Code which uses it will need to + be changed to use the "typeof" extension instead: + typedef typeof(bar) foo. (We have removed this + extension without a period of deprecation because it has + caused the compiler to crash since version 3.0 and no one + noticed until very recently. Thus we conclude it is not in + widespread use.)
C++
+
- There are now no known differences between the C++ ABI + implemented in GCC and the multi-vendor standard. We believe that + the ABI for the C++ standard library is now stable and will not + change in future versions of the compiler. However, hard + experience has taught us to be cautious; it is possible that more + problems will be found. It is our intention to make changes to + the ABI only if they are necessary for correct compilation of C++, + as opposed to conformance to the ABI documents.
- For details on how to build an ABI compliant compiler for + GNU/Linux systems, check the common C++ ABI + page.
+

New Targets and Target Specific Improvements

IA-32
+
- Fixed a number of bugs in SSE and MMX intrinsics.
- Fixed common compiler crashes with SSE instruction set enabled + (implied by -march=pentium3, pentium4, + athlon-xp)
- __m128 and __m128i is not 128bit + aligned when used in structures.
x86-64
+
- A bug whereby the compiler could generate bad code for + bzero has been fixed.
- ABI fixes (implying ABI incompatibilities with previous version in some + corner cases)
- Fixed prefetch code generation
+

References and Acknowledgements

To obtain GCC please use our mirror sites, one of the GNU mirror sites, or our CVS server.

GCC 3.2 Release Series — Changes, New Features, and Fixes

Caveats

Frontend Enhancements

C/C++/Objective-C

C++

New Targets and Target Specific Improvements

IA-32

x86-64

GCC 3.2 Release Series — Relative Changes

Release History

GCC 3.2.2

GCC 3.2.2

Bug Fixes

Bug Fixes

Internal Compiler Errors (multi-platform)

Internal Compiler Errors (multi-platform)

C++ (compiler and library) bugs

C++ (compiler and library) bugs

C and optimizer bugs

C and optimizer bugs

Objective-C bugs

Objective-C bugs

Ada bugs

Ada bugs

Preprocessor bugs

Preprocessor bugs

ARM-specific

ARM-specific

x86-specific (Intel/AMD)

x86-specific (Intel/AMD)

FreeBSD 5.0 specific

FreeBSD 5.0 specific

RTEMS-specific

RTEMS-specific

HP-PA specific

HP-PA specific

Documentation

Documentation

GCC 3.2.1

GCC 3.2.1

Bug Fixes

Bug Fixes

Internal Compiler Errors (multi-platform)

Internal Compiler Errors (multi-platform)

C++ (compiler and library) bugs

C++ (compiler and library) bugs

C and optimizer bugs

C and optimizer bugs

Preprocessor bugs

Preprocessor bugs

x86 specific (Intel/AMD)

x86 specific (Intel/AMD)

PowerPC specific

PowerPC specific

HP/PA specific

HP/PA specific

SPARC specific

SPARC specific

ARM specific

ARM specific

Alpha specific

Alpha specific

IBM s390 specific

IBM s390 specific

SCO specific

SCO specific

m68k/Coldfire specific

m68k/Coldfire specific

Documentation

Documentation

GCC 3.2

GCC 3.2

Bug Fixes

Bug Fixes

C++

C++

libstdc++

libstdc++

x86-64 specific

x86-64 specific