From: Søren Sandmann Pedersen <sandmann@redhat.com>
Date: Sat, 18 Jul 2009 21:59:43 +0000 (-0400)
Subject: Align the stack in _pixman_implementation_create_sse2()
X-Git-Tag: 1.0_branch~849
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=54cad29dc55fc0a670bf87abacd5f45e1289db54;p=profile%2Fivi%2Fpixman.git

Align the stack in _pixman_implementation_create_sse2()

When compiled without optimization, GCC will place various temporaries
on the stack. Since Firefox sometimes causes the stack to be aligned
to four bytes, this causes movdqa to generate faults.
---

diff --git a/pixman/pixman-sse2.c b/pixman/pixman-sse2.c
index cb3daf2..6ee333f 100644
--- a/pixman/pixman-sse2.c
+++ b/pixman/pixman-sse2.c
@@ -629,8 +629,7 @@ core_combine_over_u_sse2 (uint32_t*       pd,
     cache_prefetch ((__m128i*)pm);
 
     /* Align dst on a 16-byte boundary */
-    while (w &&
-           ((unsigned long)pd & 15))
+    while (w && ((unsigned long)pd & 15))
     {
 	d = *pd;
 	s = combine1 (ps, pm);
@@ -5625,6 +5624,9 @@ sse2_fill (pixman_implementation_t *imp,
     return TRUE;
 }
 
+#if defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__)
+__attribute__((__force_align_arg_pointer__))
+#endif
 pixman_implementation_t *
 _pixman_implementation_create_sse2 (void)
 {