nir: Propagate alignment when rematerializing cast derefs

Fixes: 878a8daca6bf ("nir: Add alignment information to cast derefs")
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21975>

diff --git a/src/compiler/nir/nir_deref.c b/src/compiler/nir/nir_deref.c
index 9289b23..9687eba 100644 (file)
--- a/src/compiler/nir/nir_deref.c
+++ b/src/compiler/nir/nir_deref.c
@@ -769,6 +769,8 @@ rematerialize_deref_in_block(nir_deref_instr *deref,
 
    case nir_deref_type_cast:
       new_deref->cast.ptr_stride = deref->cast.ptr_stride;
+      new_deref->cast.align_mul = deref->cast.align_mul;
+      new_deref->cast.align_offset = deref->cast.align_offset;
       break;
 
    case nir_deref_type_array: