Most of NIR doesn't allow doing array indexing on a vector (though it
does on a matrix). However, nir_lower_io handles it just fine and this
behavior is needed for shared variables in Vulkan. This commit makes
glsl_get_array_element do something sensible for vector types and makes
nir_validate happy with them.
---
src/compiler/nir_types.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/compiler/nir_types.cpp b/src/compiler/nir_types.cpp
index 5583bc0..978f7d7 100644
--- a/src/compiler/nir_types.cpp
+++ b/src/compiler/nir_types.cpp
@@ -39,6 +39,8 @@ glsl_get_array_element(const glsl_type* type)
{
if (type->is_matrix())
return type->column_type();
+ else if (type->is_vector())
+ return type->get_scalar_type();
return type->fields.array;
}
--
2.5.0.400.gff86faf
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