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nv50/ir: fix memory corruption when spilling and redoing RA

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When RA fails, and we spill, we have to clean everything up before doing
RA again. We were forgetting to reset the hi/lo linked lists - at
least the hi list is guaranteed to still have pointers to now-deleted
RIG nodes.

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 19ae5de981)
This commit is contained in:
Karol Herbst 2016-01-26 14:36:04 +01:00 • committed by Emil Velikov
parent 761e3fda6e
commit 045e269a92
1 changed files with 3 additions and 0 deletions
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3
src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
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@ -1499,6 +1499,9 @@ GCRA::cleanup(const bool success)
delete[] nodes;
nodes = NULL;
hi.next = hi.prev = &hi;
lo[0].next = lo[0].prev = &lo[0];
lo[1].next = lo[1].prev = &lo[1];
}
Symbol *