diff options
| author | Paul Eggert | 2011-11-10 00:14:27 -0800 |
|---|---|---|
| committer | Paul Eggert | 2011-11-10 00:14:27 -0800 |
| commit | 6a0bf43d7c5961297aa5024aec534e5bab73c8af (patch) | |
| tree | b823825dae7da76be667a0ddb157bff2bd029ac7 /src/ChangeLog | |
| parent | 9a4de110224cc0ea32a9c680db3f4355484236a6 (diff) | |
| download | emacs-6a0bf43d7c5961297aa5024aec534e5bab73c8af.tar.gz emacs-6a0bf43d7c5961297aa5024aec534e5bab73c8af.zip | |
Standardize on VIRT_ADDR_VARIES behavior; otherwise, valgrind
does not work on some platforms. Problem reported by Andreas Schwab in
<http://lists.gnu.org/archive/html/emacs-devel/2011-11/msg00081.html>.
* puresize.h (pure, PURE_P): Always behave as if VIRT_ADDR_VARIES
is set, removing the need for VIRT_ADDRESS_VARIES.
(PURE_P): Use a more-efficient implementation that needs just one
comparison, not two: on x86-64 with GCC 4.6.2, this cut down the
number of instructions from 6 (xorl, cmpq, jge, xorl, cmpq, setge)
to 4 (xorl, subq, cmpq, setbe).
* alloc.c (pure): Always extern now, since that's the
VIRT_ADDR_VARIES behavior.
(PURE_POINTER_P): Use a single comparison, not two, for
consistency with the new puresize.h.
* lisp.h (PNTR_COMPARISON_TYPE): Remove; no longer needed.
* m/ibms390.h, m/intel386.h, m/template.h, s/cygwin.h, s/hpux10-20.h:
Remove VIRT_ADDR_VARIES no longer needed.
Diffstat (limited to 'src/ChangeLog')
| -rw-r--r-- | src/ChangeLog | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/ChangeLog b/src/ChangeLog index b14d6752bb9..4e56e3c8499 100644 --- a/src/ChangeLog +++ b/src/ChangeLog | |||
| @@ -1,3 +1,22 @@ | |||
| 1 | 2011-11-10 Paul Eggert <eggert@cs.ucla.edu> | ||
| 2 | |||
| 3 | Standardize on VIRT_ADDR_VARIES behavior; otherwise, valgrind | ||
| 4 | does not work on some platforms. Problem reported by Andreas Schwab in | ||
| 5 | <http://lists.gnu.org/archive/html/emacs-devel/2011-11/msg00081.html>. | ||
| 6 | * puresize.h (pure, PURE_P): Always behave as if VIRT_ADDR_VARIES | ||
| 7 | is set, removing the need for VIRT_ADDRESS_VARIES. | ||
| 8 | (PURE_P): Use a more-efficient implementation that needs just one | ||
| 9 | comparison, not two: on x86-64 with GCC 4.6.2, this cut down the | ||
| 10 | number of instructions from 6 (xorl, cmpq, jge, xorl, cmpq, setge) | ||
| 11 | to 4 (xorl, subq, cmpq, setbe). | ||
| 12 | * alloc.c (pure): Always extern now, since that's the | ||
| 13 | VIRT_ADDR_VARIES behavior. | ||
| 14 | (PURE_POINTER_P): Use a single comparison, not two, for | ||
| 15 | consistency with the new puresize.h. | ||
| 16 | * lisp.h (PNTR_COMPARISON_TYPE): Remove; no longer needed. | ||
| 17 | * m/ibms390.h, m/intel386.h, m/template.h, s/cygwin.h, s/hpux10-20.h: | ||
| 18 | Remove VIRT_ADDR_VARIES no longer needed. | ||
| 19 | |||
| 1 | 2011-11-09 Chong Yidong <cyd@gnu.org> | 20 | 2011-11-09 Chong Yidong <cyd@gnu.org> |
| 2 | 21 | ||
| 3 | * window.c (Fwindow_inside_edges, Fwindow_inside_pixel_edges) | 22 | * window.c (Fwindow_inside_edges, Fwindow_inside_pixel_edges) |