diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index 3f2516a65fa..adabc2663c0 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -1763,8 +1763,6 @@ brw_postprocess_nir(nir_shader *nir, const struct brw_compiler *compiler,
       }
    }
 
-   OPT(intel_nir_lower_conversions);
-
    OPT(nir_lower_alu_to_scalar, NULL, NULL);
 
    while (OPT(nir_opt_algebraic_distribute_src_mods)) {
@@ -1814,6 +1812,12 @@ brw_postprocess_nir(nir_shader *nir, const struct brw_compiler *compiler,
       OPT(nir_lower_subgroups, &subgroups_options);
    }
 
+   /* Run intel_nir_lower_conversions only after the last tiem
+    * brw_nir_optimize is called. Various optimizations invoked there can
+    * rematerialize the conversions that the lowering pass eliminates.
+    */
+   OPT(intel_nir_lower_conversions);
+
    /* Do this only after the last opt_gcm. GCM will undo this lowering. */
    if (nir->info.stage == MESA_SHADER_FRAGMENT) {
       if (divergence_analysis_dirty) {