nir: Add alignment parameters to SSBO, UBO, and shared access

This also changes spirv_to_nir and glsl_to_nir to set them.  The one
place that doesn't set them is shared memory access lowering in
nir_lower_io.  That will have to be updated before any consumers of it
can effectively use these new alignments.

Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]>
Acked-by: Karol Herbst <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/compiler/spirv/vtn_variables.c b/src/compiler/spirv/vtn_variables.c
index e1e2c8c26ba..53f52255dc3 100644
--- a/src/compiler/spirv/vtn_variables.c
+++ b/src/compiler/spirv/vtn_variables.c
@@ -646,6 +646,12 @@ _vtn_load_store_tail(struct vtn_builder *b, nir_intrinsic_op op, bool load,
       nir_intrinsic_set_access(instr, access);
    }
 
+   /* With extensions like relaxed_block_layout, we really can't guarantee
+    * much more than scalar alignment.
+    */
+   if (op != nir_intrinsic_load_push_constant)
+      nir_intrinsic_set_align(instr, data_bit_size / 8, 0);
+
    if (index)
       instr->src[src++] = nir_src_for_ssa(index);