[Mesa-dev] [PATCH 2/2] nir: add comment for loop_unroll pass

[Rob Clark]

Save the next person from digging through the code to figure out what
the indirect_mask parameter actually does.

Signed-off-by: Rob Clark <robdclark at gmail.com>
---
 src/compiler/nir/nir_opt_loop_unroll.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/compiler/nir/nir_opt_loop_unroll.c b/src/compiler/nir/nir_opt_loop_unroll.c
index ff27c06cc01..04caa7c346d 100644
--- a/src/compiler/nir/nir_opt_loop_unroll.c
+++ b/src/compiler/nir/nir_opt_loop_unroll.c
@@ -578,6 +578,10 @@ nir_opt_loop_unroll_impl(nir_function_impl *impl,
    return progress;
 }
 
+/**
+ * indirect_mask specifies which type of indirectly accessed variables
+ * should force loop unrolling.
+ */
 bool
 nir_opt_loop_unroll(nir_shader *shader, nir_variable_mode indirect_mask)
 {
-- 
2.17.1