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ra: assert against unsigned underflow in q_total
[mesa.git]
/
src
/
mesa
/
program
/
register_allocate.c
diff --git
a/src/mesa/program/register_allocate.c
b/src/mesa/program/register_allocate.c
index db2be5dfad4ec38a5d6a79678c9dff0462b68dd0..7faf67215c84440f2bbf43684185b9f8ae8e1a93 100644
(file)
--- a/
src/mesa/program/register_allocate.c
+++ b/
src/mesa/program/register_allocate.c
@@
-434,6
+434,7
@@
decrement_q(struct ra_graph *g, unsigned int n)
unsigned int n2_class = g->nodes[n2].class;
if (n != n2 && !g->nodes[n2].in_stack) {
unsigned int n2_class = g->nodes[n2].class;
if (n != n2 && !g->nodes[n2].in_stack) {
+ assert(g->nodes[n2].q_total >= g->regs->classes[n2_class]->q[n_class]);
g->nodes[n2].q_total -= g->regs->classes[n2_class]->q[n_class];
}
}
g->nodes[n2].q_total -= g->regs->classes[n2_class]->q[n_class];
}
}