mesa: Fix test for optimistic coloring being necessary.
i965 and radeon use ra_set_node_reg() to force payload registers to specific registers while exposing those registers to the allocator still. We were treating those register nodes as unsuccessfully allocated in the ra_simplify() step, leading to walking the registers again to do optimistic coloring even if there was nothing left ot do. Acked-by: Kenneth Graunke <kenneth@whitecape.org>
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@ -437,7 +437,7 @@ ra_simplify(struct ra_graph *g)
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}
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for (i = 0; i < g->count; i++) {
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if (!g->nodes[i].in_stack)
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if (!g->nodes[i].in_stack && g->nodes[i].reg == -1)
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return GL_FALSE;
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}
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