It defaults to true so default behavior doesn't change but it allows you to
do NIR_VALIDATE=false if you don't want validation. Disabling validation
can substantially speed up shader compiles so you frequently want to turn
it off if compiler invariants aren't in question.
---
src/compiler/nir/nir_validate.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/compiler/nir/nir_validate.c b/src/compiler/nir/nir_validate.c
index e5f5b8a..63e85cf 100644
--- a/src/compiler/nir/nir_validate.c
+++ b/src/compiler/nir/nir_validate.c
@@ -1124,6 +1124,12 @@ dump_errors(validate_state *state)
void
nir_validate_shader(nir_shader *shader)
{
+ static int should_validate = -1;
+ if (should_validate < 0)
+ should_validate = env_var_as_boolean("NIR_VALIDATE", true);
+ if (!should_validate)
+ return;
+
validate_state state;
init_validate_state(&state);
--
2.5.0.400.gff86faf
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