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$NetBSD: patch-ah,v 1.1 2008/10/15 00:56:45 bjs Exp $
1c5de7b05831b3d66821707276b71974a232f5c7
Move _mm_empty() to correct place
The "fbComposeSetupSSE2()" function is guarding most of its code
depending on the capabilities of the CPU, but unfortunately the call
to "_mm_empty()" is not part of this code path but executed
unconditionally. This results in a "illegal instruction" crash on
non-MMX / non-SSE capable CPUs caused by the the "emms" instruction
(embedded in "_mm_empty()").
Fix bug 17729.
--- pixman/pixman-sse2.c.orig 2008-09-17 09:50:49.000000000 -0400
+++ pixman/pixman-sse2.c
@@ -2357,11 +2357,11 @@ fbComposeSetupSSE2(void)
pixman_composeFunctions.combineC[PIXMAN_OP_ADD] = sse2CombineAddC;
pixman_composeFunctions.combineMaskU = sse2CombineMaskU;
+
+ _mm_empty();
}
initialized = TRUE;
-
- _mm_empty();
}
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