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nir: Add a NIR_VALIDATE environment variable

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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.
Reviewed-by: Matt Turner <mattst88@gmail.com>

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Jason Ekstrand 2016-06-23 14:22:03 -07:00 • committed by Rob Clark
parent b76fa56739
commit 81978c6feb
1 changed files with 6 additions and 0 deletions
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6
src/compiler/nir/nir_validate.c
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@ -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);