diff options
| author | Grazvydas Ignotas <notasas@gmail.com> | 2017-03-04 02:49:18 +0200 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2017-03-06 11:28:48 -0800 |
| commit | ff494fe999510ea40e3ed5827e7818550b6de126 (patch) | |
| tree | 08883aec67f6d137d306956b1fae1fee9cdfa998 | |
| parent | b384c23b9e804916f125354e06c735bd3bb22811 (diff) | |
ralloc: don't leave out the alignment factor
Experimentation shows that without alignment factor gcc and clang choose
a factor of 16 even on IA-32, which doesn't match what malloc() uses (8).
The problem is it makes gcc assume the pointer is 16 byte aligned, so
with -O3 it starts using aligned SSE instructions that later fault,
so always specify a suitable alignment factor.
Cc: Jonas Pfeil <pfeiljonas@gmx.de>
Fixes: cd2b55e5 "ralloc: Make sure ralloc() allocations match malloc()'s alignment."
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100049
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Tested by: Mike Lothian <mike@fireburn.co.uk>
Tested by: Jonas Pfeil <pfeiljonas@gmx.de>
| -rw-r--r-- | src/util/ralloc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/util/ralloc.c b/src/util/ralloc.c index 03283de7180..7bf192e0db7 100644 --- a/src/util/ralloc.c +++ b/src/util/ralloc.c @@ -59,8 +59,10 @@ _CRTIMP int _vscprintf(const char *format, va_list argptr); struct #ifdef _MSC_VER __declspec(align(8)) +#elif defined(__LP64__) + __attribute__((aligned(16))) #else - __attribute__((aligned)) + __attribute__((aligned(8))) #endif ralloc_header { |