diff options
| author | Connor Abbott <[email protected]> | 2014-09-05 20:59:32 -0400 |
|---|---|---|
| committer | Andreas Boll <[email protected]> | 2014-09-12 16:07:47 +0200 |
| commit | 2828680e39e843514a38781878e2a3534f876233 (patch) | |
| tree | 5439ab520a1749dc0d113a1e8f43db30e0c9cc02 | |
| parent | ec046bc08ef8ccf69e867635c7d1e2e032acce36 (diff) | |
ra: assert against unsigned underflow in q_total
q_total should never go below 0 (which is why it's defined as unsigned),
and if it does, then something is seriously wrong.
Signed-off-by: Connor Abbott <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
| -rw-r--r-- | src/mesa/program/register_allocate.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/program/register_allocate.c b/src/mesa/program/register_allocate.c index db2be5dfad4..7faf67215c8 100644 --- 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) { + 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]; } } |