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-rw-r--r--src/intel/compiler/brw_nir.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index dbddef0d04d..287bd4908d9 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -634,6 +634,18 @@ brw_preprocess_nir(const struct brw_compiler *compiler, nir_shader *nir)
OPT(nir_split_var_copies);
+ /* Run opt_algebraic before int64 lowering so we can hopefully get rid
+ * of some int64 instructions.
+ */
+ OPT(nir_opt_algebraic);
+
+ /* Lower int64 instructions before nir_optimize so that loop unrolling
+ * sees their actual cost.
+ */
+ nir_lower_int64(nir, nir_lower_imul64 |
+ nir_lower_isign64 |
+ nir_lower_divmod64);
+
nir = brw_nir_optimize(nir, compiler, is_scalar);
if (is_scalar) {
@@ -661,10 +673,6 @@ brw_preprocess_nir(const struct brw_compiler *compiler, nir_shader *nir)
brw_nir_no_indirect_mask(compiler, nir->info.stage);
nir_lower_indirect_derefs(nir, indirect_mask);
- nir_lower_int64(nir, nir_lower_imul64 |
- nir_lower_isign64 |
- nir_lower_divmod64);
-
/* Get rid of split copies */
nir = brw_nir_optimize(nir, compiler, is_scalar);