nir: Print the alignment information on casts.

I wanted it for debugging GL alignment.

Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6612>

src/compiler/nir/nir_print.c

@@ -736,7 +736,9 @@ print_deref_instr(nir_deref_instr *instr, print_state *state)
    }
 
    if (instr->deref_type == nir_deref_type_cast) {
-      fprintf(fp, " /* ptr_stride=%u */", instr->cast.ptr_stride);
+      fprintf(fp, " /* ptr_stride=%u, align_mul=%u, align_offset=%u */",
+              instr->cast.ptr_stride,
+              instr->cast.align_mul, instr->cast.align_offset);
    }
 }