The fs_visitor's dump_instruction() implementation calls cfg_t()
indirectly through calculate_live_intervals, so if you have an infinite
loop in the CFG code, you can't call cfg::dump(fs_visitor *) to debug
it.
---
src/mesa/drivers/dri/i965/brw_cfg.cpp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_cfg.cpp
b/src/mesa/drivers/dri/i965/brw_cfg.cpp
index bb49a0a..e10ff99 100644
--- a/src/mesa/drivers/dri/i965/brw_cfg.cpp
+++ b/src/mesa/drivers/dri/i965/brw_cfg.cpp
@@ -431,7 +431,8 @@ cfg_t::dump(backend_visitor *v) const
link->block->num);
}
fprintf(stderr, "\n");
- block->dump(v);
+ if (v != NULL)
+ block->dump(v);
fprintf(stderr, "END B%d", block->num);
foreach_list_typed(bblock_link, link, link, &block->children) {
fprintf(stderr, " ->B%d",
--
2.0.4
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