ac/nir: Move ac_nir_lower_sin_cos to separate file.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32966>

src/amd/common/ac_nir.c

@@ -196,27 +196,6 @@ ac_nir_unpack_arg(nir_builder *b, const struct ac_shader_args *ac_args, struct a
    return ac_nir_unpack_value(b, value, rshift, bitwidth);
 }
 
-static bool
-is_sin_cos(const nir_instr *instr, UNUSED const void *_)
-{
-   return instr->type == nir_instr_type_alu && (nir_instr_as_alu(instr)->op == nir_op_fsin ||
-                                                nir_instr_as_alu(instr)->op == nir_op_fcos);
-}
-
-static nir_def *
-lower_sin_cos(struct nir_builder *b, nir_instr *instr, UNUSED void *_)
-{
-   nir_alu_instr *sincos = nir_instr_as_alu(instr);
-   nir_def *src = nir_fmul_imm(b, nir_ssa_for_alu_src(b, sincos, 0), 0.15915493667125702);
-   return sincos->op == nir_op_fsin ? nir_fsin_amd(b, src) : nir_fcos_amd(b, src);
-}
-
-bool
-ac_nir_lower_sin_cos(nir_shader *shader)
-{
-   return nir_shader_lower_instructions(shader, is_sin_cos, lower_sin_cos, NULL);
-}
-
 void
 ac_nir_store_var_components(nir_builder *b, nir_variable *var, nir_def *value,
                             unsigned component, unsigned writemask)

src/amd/common/ac_nir_lower_sin_cos.c

@@ -0,0 +1,31 @@
+/*
+ * Copyright © 2021 Valve Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "ac_nir.h"
+#include "ac_nir_helpers.h"
+
+#include "nir_builder.h"
+
+static bool
+is_sin_cos(const nir_instr *instr, UNUSED const void *_)
+{
+   return instr->type == nir_instr_type_alu && (nir_instr_as_alu(instr)->op == nir_op_fsin ||
+                                                nir_instr_as_alu(instr)->op == nir_op_fcos);
+}
+
+static nir_def *
+lower_sin_cos(struct nir_builder *b, nir_instr *instr, UNUSED void *_)
+{
+   nir_alu_instr *sincos = nir_instr_as_alu(instr);
+   nir_def *src = nir_fmul_imm(b, nir_ssa_for_alu_src(b, sincos, 0), 0.15915493667125702);
+   return sincos->op == nir_op_fsin ? nir_fsin_amd(b, src) : nir_fcos_amd(b, src);
+}
+
+bool
+ac_nir_lower_sin_cos(nir_shader *shader)
+{
+   return nir_shader_lower_instructions(shader, is_sin_cos, lower_sin_cos, NULL);
+}

src/amd/common/meson.build

@@ -102,6 +102,7 @@ amd_common_files = files(
   'ac_nir_lower_ngg.c',
   'ac_nir_lower_ps_early.c',
   'ac_nir_lower_ps_late.c',
+  'ac_nir_lower_sin_cos.c',
   'ac_nir_meta.h',
   'ac_nir_meta_cs_blit.c',
   'ac_nir_meta_cs_clear_copy_buffer.c',