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| author | Kazu Hirata <kazu@cs.umass.edu> | 2003-12-16 00:11:48 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2003-12-16 00:11:48 +0000 |
| commit | c98e7fe852a0a47e1a88ac68528491af7889b706 (patch) | |
| tree | 2b5556bfacb2c22de66a560c89b037ff53a18c3e /gcc/doc | |
| parent | 9d05bbceb29f58b912b95cee1e43b0bcd8994e56 (diff) | |
| download | gcc-c98e7fe852a0a47e1a88ac68528491af7889b706.zip gcc-c98e7fe852a0a47e1a88ac68528491af7889b706.tar.gz gcc-c98e7fe852a0a47e1a88ac68528491af7889b706.tar.bz2 | |
system.h (DEFAULT_CALLER_SAVES): Poison.
* system.h (DEFAULT_CALLER_SAVES): Poison.
* toplev.c (flag_caller_saves): Always initialize with 0.
* doc/tm.texi (DEFAULT_CALLER_SAVES): Remove.
From-SVN: r74655
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 1b028f9..4a71779 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -4010,14 +4010,6 @@ If you enable it, GCC can save registers around function calls. This makes it possible to use call-clobbered registers to hold variables that must live across calls. -@defmac DEFAULT_CALLER_SAVES -Define this macro if function calls on the target machine do not preserve -any registers; in other words, if @code{CALL_USED_REGISTERS} has 1 -for all registers. When defined, this macro enables @option{-fcaller-saves} -by default for all optimization levels. It has no effect for optimization -levels 2 and higher, where @option{-fcaller-saves} is the default. -@end defmac - @defmac CALLER_SAVE_PROFITABLE (@var{refs}, @var{calls}) A C expression to determine whether it is worthwhile to consider placing a pseudo-register in a call-clobbered hard register and saving and |