freedreno: add a standalone ir3_compiler binary for building TGSI

Compiler taken from the combo old/new compiler comparer + simulator.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

src/gallium/drivers/freedreno/Makefile.am

@@ -17,4 +17,16 @@ libfreedreno_la_SOURCES = \
 	$(a3xx_SOURCES) \
 	$(ir3_SOURCES)
 
+noinst_PROGRAMS = ir3_compiler
+
+ir3_compiler_SOURCES = \
+	ir3/ir3_cmdline.c
+
+ir3_compiler_LDADD = \
+	libfreedreno.la \
+	../../auxiliary/libgallium.la \
+	$(top_builddir)/src/util/libmesautil.la \
+	$(GALLIUM_COMMON_LIB_DEPS) \
+	$(FREEDRENO_LIBS)
+
 EXTRA_DIST = Android.mk

src/gallium/drivers/freedreno/ir3/ir3_cmdline.c

@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
+ *
+ * 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:
+ *    Rob Clark <robclark@freedesktop.org>
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <err.h>
+
+#include "tgsi/tgsi_parse.h"
+#include "tgsi/tgsi_text.h"
+#include "tgsi/tgsi_dump.h"
+
+#include "freedreno_util.h"
+#include "freedreno_lowering.h"
+
+#include "ir3_compiler.h"
+#include "instr-a3xx.h"
+#include "ir3.h"
+
+static void dump_info(struct ir3_shader_variant *so)
+{
+	struct ir3_info info;
+	uint32_t *bin;
+	const char *type = (so->type == SHADER_VERTEX) ? "VERT" : "FRAG";
+
+	// for debug, dump some before/after info:
+	bin = ir3_assemble(so->ir, &info);
+	if (fd_mesa_debug & FD_DBG_DISASM) {
+		unsigned i;
+
+		debug_printf("%s: disasm:\n", type);
+		disasm_a3xx(bin, info.sizedwords, 0, so->type);
+
+		debug_printf("%s: outputs:", type);
+		for (i = 0; i < so->outputs_count; i++) {
+			uint8_t regid = so->outputs[i].regid;
+			ir3_semantic sem = so->outputs[i].semantic;
+			debug_printf(" r%d.%c (%u:%u)",
+					(regid >> 2), "xyzw"[regid & 0x3],
+					sem2name(sem), sem2idx(sem));
+		}
+		debug_printf("\n");
+		debug_printf("%s: inputs:", type);
+		for (i = 0; i < so->inputs_count; i++) {
+			uint8_t regid = so->inputs[i].regid;
+			ir3_semantic sem = so->inputs[i].semantic;
+			debug_printf(" r%d.%c (%u:%u,cm=%x,il=%u,b=%u)",
+					(regid >> 2), "xyzw"[regid & 0x3],
+					sem2name(sem), sem2idx(sem),
+					so->inputs[i].compmask,
+					so->inputs[i].inloc,
+					so->inputs[i].bary);
+		}
+		debug_printf("\n");
+	}
+	debug_printf("%s: %u instructions, %d half, %d full\n\n",
+			type, info.instrs_count, info.max_half_reg + 1, info.max_reg + 1);
+	free(bin);
+}
+
+
+static void
+read_file(const char *filename, void **ptr, size_t *size)
+{
+	int fd, ret;
+	struct stat st;
+
+	*ptr = MAP_FAILED;
+
+	fd = open(filename, O_RDONLY);
+	if (fd == -1)
+		errx(1, "couldn't open `%s'", filename);
+
+	ret = fstat(fd, &st);
+	if (ret)
+		errx(1, "couldn't stat `%s'", filename);
+
+	*size = st.st_size;
+	*ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+	if (*ptr == MAP_FAILED)
+		errx(1, "couldn't map `%s'", filename);
+
+	close(fd);
+}
+
+static void reset_variant(struct ir3_shader_variant *v, const char *msg)
+{
+	debug_error(msg);
+	v->inputs_count = 0;
+	v->outputs_count = 0;
+	v->total_in = 0;
+	v->has_samp = false;
+	v->immediates_count = 0;
+}
+
+int main(int argc, char **argv)
+{
+	int ret = 0;
+	const char *filename = argv[1];
+	struct tgsi_token toks[65536];
+	struct tgsi_parse_context parse;
+	struct ir3_shader_variant v;
+	struct ir3_shader_key key = {
+		.color_two_side = true,
+	};
+	void *ptr;
+	size_t size;
+
+	fd_mesa_debug |= FD_DBG_DISASM | FD_DBG_OPTDUMP | FD_DBG_MSGS | FD_DBG_OPTMSGS;
+
+
+	memset(&v, 0, sizeof(v));
+	v.key = key;
+
+	read_file(filename, &ptr, &size);
+
+	if (!tgsi_text_translate(ptr, toks, Elements(toks)))
+		errx(1, "could not parse `%s'", filename);
+
+	tgsi_parse_init(&parse, toks);
+	switch (parse.FullHeader.Processor.Processor) {
+	case TGSI_PROCESSOR_FRAGMENT:
+		v.type = SHADER_FRAGMENT;
+		break;
+	case TGSI_PROCESSOR_VERTEX:
+		v.type = SHADER_VERTEX;
+		break;
+	case TGSI_PROCESSOR_COMPUTE:
+		v.type = SHADER_COMPUTE;
+		break;
+	}
+
+	if (!(fd_mesa_debug & FD_DBG_NOOPT)) {
+		/* with new compiler: */
+		ret = ir3_compile_shader(&v, toks, key, true);
+
+		if (ret) {
+			reset_variant(&v, "new compiler failed, trying without copy propagation!");
+			ret = ir3_compile_shader(&v, toks, key, false);
+			if (ret)
+				reset_variant(&v, "new compiler failed, trying fallback!\n");
+		}
+	}
+
+	if (ret)
+		ret = ir3_compile_shader_old(&v, toks, key);
+
+	if (ret) {
+		fprintf(stderr, "old compiler failed!\n");
+		return ret;
+	}
+	dump_info(&v);
+}