diff --git a/src/asahi/compiler/agx_compile.c b/src/asahi/compiler/agx_compile.c
index f83840819a1..a0e4a4be62c 100644
--- a/src/asahi/compiler/agx_compile.c
+++ b/src/asahi/compiler/agx_compile.c
@@ -3154,7 +3154,16 @@ agx_optimize_nir(nir_shader *nir, bool soft_fault, uint16_t *preamble_size,
       } while (progress);
    }
 
+   /* Reassociate before forming preambles because it makes preambles more
+    * effective. Clean up after.
+    */
    for (unsigned i = 0; i < 4; ++i) {
+      nir_reassociate_options opts = nir_reassociate_scalar_math;
+      if (i < 2)
+         opts |= nir_reassociate_cse_heuristic;
+
+      NIR_PASS(_, nir, nir_opt_reassociate, opts);
+
       do {
          progress = false;