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| author | Nathan Sidwell <nathan@codesourcery.com> | 2002-12-23 14:43:28 +0000 |
|---|---|---|
| committer | Nathan Sidwell <nathan@gcc.gnu.org> | 2002-12-23 14:43:28 +0000 |
| commit | 0c685f1256349ca34726d19826dad68f3559a6e1 (patch) | |
| tree | 31685ad42eeb50810729dd451ba7b19f425a95a3 /gcc/doc | |
| parent | 1df7e439e15df663a524df0bbc3aa59617383db0 (diff) | |
| download | gcc-0c685f1256349ca34726d19826dad68f3559a6e1.zip gcc-0c685f1256349ca34726d19826dad68f3559a6e1.tar.gz gcc-0c685f1256349ca34726d19826dad68f3559a6e1.tar.bz2 | |
tree.c (save_expr): Allow either side of a dyadic operand to be constant.
* tree.c (save_expr): Allow either side of a dyadic operand to be
constant.
* doc/portability.texi (portability): Update portability goals.
From-SVN: r60435
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/portability.texi | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/gcc/doc/portability.texi b/gcc/doc/portability.texi index c3d8e39..b05698d 100644 --- a/gcc/doc/portability.texi +++ b/gcc/doc/portability.texi @@ -1,5 +1,5 @@ @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, -@c 1999, 2000, 2001 Free Software Foundation, Inc. +@c 1999, 2000, 2001, 2002 Free Software Foundation, Inc. @c This is part of the GCC manual. @c For copying conditions, see the file gcc.texi. @@ -8,10 +8,11 @@ @cindex portability @cindex GCC and portability -The main goal of GCC was to make a good, fast compiler for machines in -the class that the GNU system aims to run on: 32-bit machines that address -8-bit bytes and have several general registers. Elegance, theoretical -power and simplicity are only secondary. +GCC itself aims to be portable to any machine where @code{int} is at least +a 32-bit type. It aims to target machines with a flat (non-segmented) byte +addressed data address space (the code address space can be separate). +Target ABIs may have 8, 16, 32 or 64-bit @code{int} type. @code{char} +can be wider than 8 bits. GCC gets most of the information about the target machine from a machine description which gives an algebraic formula for each of the machine's |