freedreno/ir3: refactor out helper to compile shader from asm

Deduplicate a bit of hand-building of ir3_shader/_variant from
computerator and delay test.  This also removes the need for
external things to depend on generated ir3_parser header.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5508>

src/freedreno/Makefile.sources

@@ -22,6 +22,8 @@ ir3_SOURCES := \
 	ir3/ir3.c \
 	ir3/ir3_a4xx.c \
 	ir3/ir3_a6xx.c \
+	ir3/ir3_assembler.c \
+	ir3/ir3_assembler.h \
 	ir3/ir3_compiler.c \
 	ir3/ir3_compiler.h \
 	ir3/ir3_compiler_nir.c \

src/freedreno/computerator/ir3_asm.c

@@ -21,8 +21,8 @@
  * SOFTWARE.
  */
 
+#include "ir3/ir3_assembler.h"
 #include "ir3/ir3_compiler.h"
-#include "ir3/ir3_parser.h"
 
 #include "ir3_asm.h"
 
@@ -30,32 +30,18 @@ struct ir3_kernel *
 ir3_asm_assemble(struct ir3_compiler *c, FILE *in)
 {
 	struct ir3_kernel *kernel = calloc(1, sizeof(*kernel));
+	struct ir3_shader *shader = ir3_parse_asm(c, &kernel->info, in);
+	struct ir3_shader_variant *v = shader->variants;
 
-	struct ir3_shader *shader = calloc(1, sizeof(*shader));
-	shader->compiler = c;
-	shader->type = MESA_SHADER_COMPUTE;
-
-	struct ir3_shader_variant *v = calloc(1, sizeof(*v));
-	v->type = MESA_SHADER_COMPUTE;
-	v->shader = shader;
 	v->mergedregs = true;
 
 	kernel->v = v;
-
-	kernel->info.numwg = INVALID_REG;
-
-	v->ir = ir3_parse(v, &kernel->info, in);
-	if (!v->ir)
-		errx(-1, "parse failed");
-
-	ir3_debug_print(v->ir, "AFTER PARSING");
+	kernel->bin = v->bin;
 
 	memcpy(kernel->base.local_size, kernel->info.local_size, sizeof(kernel->base.local_size));
 	kernel->base.num_bufs = kernel->info.num_bufs;
 	memcpy(kernel->base.buf_sizes, kernel->info.buf_sizes, sizeof(kernel->base.buf_sizes));
 
-	kernel->bin = ir3_shader_assemble(v);
-
 	unsigned sz = v->info.sizedwords * 4;
 
 	v->bo = fd_bo_new(c->dev, sz,

src/freedreno/computerator/meson.build

@@ -23,7 +23,6 @@ computerator_files = [
   'ir3_asm.c',
   'main.c',
   freedreno_xml_header_files,
-  ir3_parser,
 ]
 
 computerator = executable(

src/freedreno/ir3/ir3_assembler.c

@@ -0,0 +1,62 @@
+/*
+ * Copyright © 2020 Google, Inc.
+ *
+ * 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.
+ */
+
+#include <err.h>
+
+#include "ir3_assembler.h"
+#include "ir3_compiler.h"
+#include "ir3_parser.h"
+
+/**
+ * A helper to go from ir3 assembly to assembled shader.  The shader has a
+ * single variant.
+ */
+struct ir3_shader *
+ir3_parse_asm(struct ir3_compiler *c, struct ir3_kernel_info *info, FILE *in)
+{
+	struct ir3_shader *shader = calloc(1, sizeof(*shader));
+	shader->compiler = c;
+	shader->type = MESA_SHADER_COMPUTE;
+	mtx_init(&shader->variants_lock, mtx_plain);
+
+	struct ir3_shader_variant *v = calloc(1, sizeof(*v));
+	v->type = MESA_SHADER_COMPUTE;
+	v->shader = shader;
+
+	shader->variants = v;
+	shader->variant_count = 1;
+
+	info->numwg = INVALID_REG;
+
+	v->ir = ir3_parse(v, info, in);
+	if (!v->ir)
+		errx(-1, "parse failed");
+
+	ir3_debug_print(v->ir, "AFTER PARSING");
+
+	v->bin = ir3_shader_assemble(v);
+	if (!v->bin)
+		errx(-1, "assembler failed");
+
+	return shader;
+}

src/freedreno/ir3/ir3_assembler.h

@@ -0,0 +1,46 @@
+/*
+ * Copyright © 2020 Google, Inc.
+ *
+ * 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.
+ */
+
+#ifndef __IR3_ASSEMBLER_H__
+#define __IR3_ASSEMBLER_H__
+
+#include <stdint.h>
+#include <stdio.h>
+
+#define MAX_BUFS 4
+
+struct ir3_kernel_info {
+	uint32_t local_size[3];
+	uint32_t num_bufs;
+	uint32_t buf_sizes[MAX_BUFS]; /* size in dwords */
+
+	/* driver-param uniforms: */
+	unsigned numwg;
+};
+
+struct ir3_shader;
+struct ir3_compiler;
+
+struct ir3_shader * ir3_parse_asm(struct ir3_compiler *c, struct ir3_kernel_info *info, FILE *in);
+
+#endif /* __IR3_ASSEMBLER_H__ */

src/freedreno/ir3/ir3_parser.y

@@ -22,17 +22,7 @@
  */
 
 %code requires {
-
-#define MAX_BUFS 4
-
-struct ir3_kernel_info {
-	uint32_t local_size[3];
-	uint32_t num_bufs;
-	uint32_t buf_sizes[MAX_BUFS]; /* size in dwords */
-
-	/* driver-param uniforms: */
-	unsigned numwg;
-};
+#include "ir3/ir3_assembler.h"
 
 struct ir3 * ir3_parse(struct ir3_shader_variant *v,
 		struct ir3_kernel_info *k, FILE *f);

src/freedreno/ir3/meson.build

@@ -66,6 +66,8 @@ libfreedreno_ir3_files = files(
   'ir3.c',
   'ir3_a4xx.c',
   'ir3_a6xx.c',
+  'ir3_assembler.c',
+  'ir3_assembler.h',
   'ir3_compiler_nir.c',
   'ir3_compiler.c',
   'ir3_compiler.h',
@@ -126,9 +128,9 @@ test('ir3_disasm',
 test('ir3_delay_test',
   executable(
     'ir3_delay_test',
-    ['tests/delay.c', ir3_parser],
+    'tests/delay.c',
     link_with: libfreedreno_ir3,
-    dependencies: [idep_mesautil, idep_nir_headers],
+    dependencies: [idep_mesautil, idep_nir],
     include_directories: [inc_freedreno, inc_include, inc_src, inc_mesa, inc_gallium],
   ),
   suite: ['freedreno'],

src/freedreno/ir3/tests/delay.c

@@ -24,8 +24,8 @@
 #include <stdio.h>
 
 #include "ir3.h"
+#include "ir3_assembler.h"
 #include "ir3_compiler.h"
-#include "ir3_parser.h"
 
 /*
  * A test for delay-slot calculation.  Each test specifies ir3 assembly
@@ -85,25 +85,16 @@ static const struct test {
 	),
 };
 
-static struct ir3 *
+static struct ir3_shader *
 parse_asm(struct ir3_compiler *c, const char *asmstr)
 {
-	struct ir3_shader shader = {
-		.type = MESA_SHADER_COMPUTE,
-		.compiler = c,
-	};
-	struct ir3_shader_variant v = {
-		.type = shader.type,
-		.shader = &shader,
-	};
 	struct ir3_kernel_info info = {};
 	FILE *in = fmemopen((void *)asmstr, strlen(asmstr), "r");
-
-	struct ir3 *ir = ir3_parse(&v, &info, in);
+	struct ir3_shader *shader = ir3_parse_asm(c, &info, in);
 
 	fclose(in);
 
-	return ir;
+	return shader;
 }
 
 static unsigned
@@ -190,9 +181,8 @@ main(int argc, char **argv)
 
 	for (int i = 0; i < ARRAY_SIZE(tests); i++) {
 		const struct test *test = &tests[i];
-		struct ir3 *ir = parse_asm(c, test->asmstr);
-
-		ir3_debug_print(ir, "AFTER PARSING");
+		struct ir3_shader *shader = parse_asm(c, test->asmstr);
+		struct ir3 *ir = shader->variants->ir;
 
 		regs_to_ssa(ir);
 
@@ -224,6 +214,8 @@ main(int argc, char **argv)
 		} else {
 			printf("%d: PASS\n", i);
 		}
+
+		ir3_shader_destroy(shader);
 	}
 
 	return result;