https://bugs.freedesktop.org/show_bug.cgi?id=82828
--- Comment #8 from Pavel Ondračka pavel.ondracka@email.cz --- Ok, so indeed I got NO_REG for g->nodes[n2].reg
print g->nodes[n2].reg $1 = 4294967295
than I set breakpoint at end of ra_simplify (it gets called just once before the crash)
Breakpoint 1, ra_simplify (g=0x80c2058) at ../../src/mesa/program/register_allocate.c:491 491 } (gdb) print g->count $2 = 3
print g->nodes[0] $3 = {adjacency = 0x81b8968, adjacency_list = 0x80c1658, adjacency_list_size = 4, adjacency_count = 3, class = 0, reg = 4294967295, in_stack = false, q_total = 4294967295, spill_cost = 0}
print g->nodes[1] $4 = {adjacency = 0x81b3d18, adjacency_list = 0x80c1b58, adjacency_list_size = 4, adjacency_count = 3, class = 2, reg = 4294967295, in_stack = true, q_total = 2, spill_cost = 0}
print g->nodes[2] $5 = {adjacency = 0x81c0328, adjacency_list = 0x80c18d8, adjacency_list_size = 4, adjacency_count = 3, class = 3, reg = 4294967295, in_stack = true, q_total = 4, spill_cost = 0}