--- /dev/null
+/*
+ * Copyright © 2014 Intel Corporation
+ *
+ * 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 <gtest/gtest.h>
+#include "brw_vec4.h"
+#include "brw_vs.h"
+
+using namespace brw;
+
+int ret = 0;
+
+class copy_propagation_test : public ::testing::Test {
+ virtual void SetUp();
+
+public:
+ struct brw_context *brw;
+ struct gl_context *ctx;
+ struct gl_shader_program *shader_prog;
+ struct brw_vertex_program *vp;
+ vec4_visitor *v;
+};
+
+class copy_propagation_vec4_visitor : public vec4_visitor
+{
+public:
+ copy_propagation_vec4_visitor(struct brw_context *brw,
+ struct gl_shader_program *shader_prog)
+ : vec4_visitor(brw, NULL, NULL, NULL, NULL, shader_prog,
+ MESA_SHADER_VERTEX, NULL,
+ false, false /* no_spills */,
+ ST_NONE, ST_NONE, ST_NONE)
+ {
+ }
+
+protected:
+ virtual dst_reg *make_reg_for_system_value(ir_variable *ir)
+ {
+ assert(!"Not reached");
+ return NULL;
+ }
+
+ virtual void setup_payload()
+ {
+ assert(!"Not reached");
+ }
+
+ virtual void emit_prolog()
+ {
+ assert(!"Not reached");
+ }
+
+ virtual void emit_program_code()
+ {
+ assert(!"Not reached");
+ }
+
+ virtual void emit_thread_end()
+ {
+ assert(!"Not reached");
+ }
+
+ virtual void emit_urb_write_header(int mrf)
+ {
+ assert(!"Not reached");
+ }
+
+ virtual vec4_instruction *emit_urb_write_opcode(bool complete)
+ {
+ assert(!"Not reached");
+ unreachable();
+ }
+};
+
+
+void copy_propagation_test::SetUp()
+{
+ brw = (struct brw_context *)calloc(1, sizeof(*brw));
+ ctx = &brw->ctx;
+
+ vp = ralloc(NULL, struct brw_vertex_program);
+
+ shader_prog = ralloc(NULL, struct gl_shader_program);
+
+ v = new copy_propagation_vec4_visitor(brw, shader_prog);
+
+ _mesa_init_vertex_program(ctx, &vp->program, GL_VERTEX_SHADER, 0);
+
+ brw->gen = 4;
+}
+
+static void
+copy_propagation(vec4_visitor *v)
+{
+ bool print = false;
+
+ if (print) {
+ fprintf(stderr, "instructions before:\n");
+ v->dump_instructions();
+ }
+
+ v->opt_copy_propagation();
+
+ if (print) {
+ fprintf(stderr, "instructions after:\n");
+ v->dump_instructions();
+ }
+}
+
+TEST_F(copy_propagation_test, test_swizzle_swizzle)
+{
+ dst_reg a = dst_reg(v, glsl_type::vec4_type);
+ dst_reg b = dst_reg(v, glsl_type::vec4_type);
+ dst_reg c = dst_reg(v, glsl_type::vec4_type);
+
+ v->emit(v->ADD(a, src_reg(a), src_reg(a)));
+
+ v->emit(v->MOV(b, swizzle(src_reg(a), BRW_SWIZZLE4(SWIZZLE_Y,
+ SWIZZLE_Z,
+ SWIZZLE_W,
+ SWIZZLE_X))));
+
+ vec4_instruction *test_mov =
+ v->MOV(c, swizzle(src_reg(b), BRW_SWIZZLE4(SWIZZLE_Y,
+ SWIZZLE_Z,
+ SWIZZLE_W,
+ SWIZZLE_X)));
+ v->emit(test_mov);
+
+ copy_propagation(v);
+
+ EXPECT_EQ(test_mov->src[0].reg, a.reg);
+ EXPECT_EQ(test_mov->src[0].swizzle, BRW_SWIZZLE4(SWIZZLE_Z,
+ SWIZZLE_W,
+ SWIZZLE_X,
+ SWIZZLE_Y));
+}
projects / mesa.git / commitdiff