pan/bi: Stub out new compiler

Just enough to pipe in the NIR shader.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4061>

src/panfrost/Makefile.sources

@@ -1,6 +1,8 @@
 bifrost_FILES := \
         bifrost/bifrost.h \
+        bifrost/bifrost_compile.c \
         bifrost/bifrost_compile.h \
+        bifrost/compiler.h \
         bifrost/cmdline.c \
         bifrost/disassemble.c \
         bifrost/disassemble.h

src/panfrost/bifrost/bifrost_compile.c

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2020 Collabora Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors (Collabora):
+ *      Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
+ */
+
+#include "main/mtypes.h"
+#include "compiler/glsl/glsl_to_nir.h"
+#include "compiler/nir_types.h"
+#include "main/imports.h"
+#include "compiler/nir/nir_builder.h"
+
+#include "disassemble.h"
+#include "bifrost_compile.h"
+#include "compiler.h"
+
+void
+bifrost_compile_shader_nir(nir_shader *nir, bifrost_program *program)
+{
+        bi_context *ctx = rzalloc(NULL, bi_context);
+        ctx->nir = nir;
+
+        nir_print_shader(nir, stdout);
+
+        ralloc_free(ctx);
+}

src/panfrost/bifrost/bifrost_compile.h

@@ -31,8 +31,7 @@ typedef struct {
         struct util_dynarray compiled;
 } bifrost_program;
 
-int
-bifrost_compile_shader_nir(nir_shader *nir, bifrost_program *program);
+void bifrost_compile_shader_nir(nir_shader *nir, bifrost_program *program);
 
 static const nir_shader_compiler_options bifrost_nir_options = {
         .lower_ffma = true,

src/panfrost/bifrost/cmdline.c

@@ -65,7 +65,7 @@ compile_shader(char **argv)
 
                 NIR_PASS_V(nir[i], gl_nir_lower_buffers, prog);
                 NIR_PASS_V(nir[i], nir_opt_constant_folding);
-                //bifrost_compile_shader_nir(nir[i], &compiled);
+                bifrost_compile_shader_nir(nir[i], &compiled);
         }
 }
 

src/panfrost/bifrost/compiler.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2020 Collabora Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors (Collabora):
+ *      Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
+ */
+
+#ifndef __BIFROST_COMPILER_H
+#define __BIFROST_COMPILER_H
+
+typedef struct {
+       nir_shader *nir;
+} bi_context; 
+
+#endif

src/panfrost/bifrost/meson.build

@@ -21,6 +21,7 @@
 
 libpanfrost_bifrost_files = files(
   'disassemble.c',
+  'bifrost_compile.c',
 )
 
 libpanfrost_bifrost = static_library(