gcc

This release includes general optimizer improvements, and a few more ISO C99 features. The preprocessor is now 10-50% faster than the preprocessor in GCC 3.0, and an Ada frontend was added.

GCC now supports newer versions of the NetBSD operating system, which use the ELF object file format. On x86 processors correct debugging information is generated from functions that have lines from multiple files (e.g. yacc output). A fix for whitespace handling in the -traditional preprocessor was made, which can affect Fortran Fixes to the exception handling runtime. There are more fixes for bad code generation in C++, a fix for shared library generation under AIX 4.3 Port of GCC to Tensilica's Xtensa processor contributed, and a fix for compiling the PPC Linux kernel (FAT fs wouldn't link).

This release fixes an accidental change to the PowerPC ABI, bad code
generation on a variety of architectures, bad code generation in C++,
crashes in the C++ demangler, and buffer overflows caused by the C++
standard library. It adds improvements to the debugging information
generated for C++ classes and miscellaneous improvements for a variety
of architectures.

Fixes for bad code generation during loop unrolling and bad code generation by the sibling call optimization, improved x86 code generation, and function descriptors in C++ vtables for IA64.