Otherwise calling dump_instructions() after declaring a new fs_reg would
segfault when calculate_register_pressure()'s loop over reg walked off
the end of the virtual_grf_start[] array that calculate_live_intervals()
would have reallocated for you, if it had known there was a new
register.
---
src/mesa/drivers/dri/i965/brw_fs.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp
b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 713e477..c88f7c9 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -3294,6 +3294,7 @@ fs_visitor::assign_binding_table_offsets()
void
fs_visitor::calculate_register_pressure()
{
+ invalidate_live_intervals();
calculate_live_intervals();
int num_instructions = 0;
--
1.8.3.2
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