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i965/vec4: Assign correct destination offset to rewritten instruction in register...
[mesa.git] / src / mesa / drivers / dri / i965 / test_fs_saturate_propagation.cpp
diff --git a/src/mesa/drivers/dri/i965/test_fs_saturate_propagation.cpp b/src/mesa/drivers/dri/i965/test_fs_saturate_propagation.cpp
index 32e8b8f88673a63a0df6da4dabe8f57f81172148..680fe72dfd5c98f32a9d4ffa6170d0d9f55e1a8a 100644 (file)
--- a/src/mesa/drivers/dri/i965/test_fs_saturate_propagation.cpp
+++ b/src/mesa/drivers/dri/i965/test_fs_saturate_propagation.cpp
@@ -33,11 +33,10 @@ class saturate_propagation_test : public ::testing::Test {
 
 public:
    struct brw_compiler *compiler;
-   struct brw_device_info *devinfo;
+   struct gen_device_info *devinfo;
    struct gl_context *ctx;
    struct brw_wm_prog_data *prog_data;
    struct gl_shader_program *shader_prog;
-   struct brw_fragment_program *fp;
    fs_visitor *v;
 };
 
@@ -57,17 +56,14 @@ void saturate_propagation_test::SetUp()
 {
    ctx = (struct gl_context *)calloc(1, sizeof(*ctx));
    compiler = (struct brw_compiler *)calloc(1, sizeof(*compiler));
-   devinfo = (struct brw_device_info *)calloc(1, sizeof(*devinfo));
+   devinfo = (struct gen_device_info *)calloc(1, sizeof(*devinfo));
    compiler->devinfo = devinfo;
 
-   fp = ralloc(NULL, struct brw_fragment_program);
    prog_data = ralloc(NULL, struct brw_wm_prog_data);
    nir_shader *shader = nir_shader_create(NULL, MESA_SHADER_FRAGMENT, NULL);
 
    v = new saturate_propagation_fs_visitor(compiler, prog_data, shader);
 
-   _mesa_init_gl_program(&fp->program.Base, GL_FRAGMENT_SHADER, 0);
-
    devinfo->gen = 4;
 }
 
@@ -210,6 +206,40 @@ TEST_F(saturate_propagation_test, predicated_instruction)
 }
 
 TEST_F(saturate_propagation_test, neg_mov_sat)
+{
+   const fs_builder &bld = v->bld;
+   fs_reg dst0 = v->vgrf(glsl_type::float_type);
+   fs_reg dst1 = v->vgrf(glsl_type::float_type);
+   fs_reg src0 = v->vgrf(glsl_type::float_type);
+   bld.RNDU(dst0, src0);
+   dst0.negate = true;
+   set_saturate(true, bld.MOV(dst1, dst0));
+
+   /* = Before =
+    *
+    * 0: rndu(8)       dst0  src0
+    * 1: mov.sat(8)    dst1  -dst0
+    *
+    * = After =
+    * (no changes)
+    */
+
+   v->calculate_cfg();
+   bblock_t *block0 = v->cfg->blocks[0];
+
+   EXPECT_EQ(0, block0->start_ip);
+   EXPECT_EQ(1, block0->end_ip);
+
+   EXPECT_FALSE(saturate_propagation(v));
+   EXPECT_EQ(0, block0->start_ip);
+   EXPECT_EQ(1, block0->end_ip);
+   EXPECT_EQ(BRW_OPCODE_RNDU, instruction(block0, 0)->opcode);
+   EXPECT_FALSE(instruction(block0, 0)->saturate);
+   EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
+   EXPECT_TRUE(instruction(block0, 1)->saturate);
+}
+
+TEST_F(saturate_propagation_test, add_neg_mov_sat)
 {
    const fs_builder &bld = v->bld;
    fs_reg dst0 = v->vgrf(glsl_type::float_type);
@@ -226,7 +256,8 @@ TEST_F(saturate_propagation_test, neg_mov_sat)
     * 1: mov.sat(8)    dst1  -dst0
     *
     * = After =
-    * (no changes)
+    * 0: add.sat(8)    dst0  -src0 -src1
+    * 1: mov(8)        dst1  dst0
     */
 
    v->calculate_cfg();
@@ -235,13 +266,138 @@ TEST_F(saturate_propagation_test, neg_mov_sat)
    EXPECT_EQ(0, block0->start_ip);
    EXPECT_EQ(1, block0->end_ip);
 
-   EXPECT_FALSE(saturate_propagation(v));
+   EXPECT_TRUE(saturate_propagation(v));
    EXPECT_EQ(0, block0->start_ip);
    EXPECT_EQ(1, block0->end_ip);
    EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
+   EXPECT_TRUE(instruction(block0, 0)->saturate);
+   EXPECT_TRUE(instruction(block0, 0)->src[0].negate);
+   EXPECT_TRUE(instruction(block0, 0)->src[1].negate);
+   EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
+   EXPECT_FALSE(instruction(block0, 1)->saturate);
+}
+
+TEST_F(saturate_propagation_test, mul_neg_mov_sat)
+{
+   const fs_builder &bld = v->bld;
+   fs_reg dst0 = v->vgrf(glsl_type::float_type);
+   fs_reg dst1 = v->vgrf(glsl_type::float_type);
+   fs_reg src0 = v->vgrf(glsl_type::float_type);
+   fs_reg src1 = v->vgrf(glsl_type::float_type);
+   bld.MUL(dst0, src0, src1);
+   dst0.negate = true;
+   set_saturate(true, bld.MOV(dst1, dst0));
+
+   /* = Before =
+    *
+    * 0: mul(8)        dst0  src0  src1
+    * 1: mov.sat(8)    dst1  -dst0
+    *
+    * = After =
+    * 0: mul.sat(8)    dst0  src0 -src1
+    * 1: mov(8)        dst1  dst0
+    */
+
+   v->calculate_cfg();
+   bblock_t *block0 = v->cfg->blocks[0];
+
+   EXPECT_EQ(0, block0->start_ip);
+   EXPECT_EQ(1, block0->end_ip);
+
+   EXPECT_TRUE(saturate_propagation(v));
+   EXPECT_EQ(0, block0->start_ip);
+   EXPECT_EQ(1, block0->end_ip);
+   EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode);
+   EXPECT_TRUE(instruction(block0, 0)->saturate);
+   EXPECT_TRUE(instruction(block0, 0)->src[0].negate);
+   EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
+   EXPECT_FALSE(instruction(block0, 1)->saturate);
+   EXPECT_FALSE(instruction(block0, 1)->src[0].negate);
+}
+
+TEST_F(saturate_propagation_test, mul_mov_sat_neg_mov_sat)
+{
+   const fs_builder &bld = v->bld;
+   fs_reg dst0 = v->vgrf(glsl_type::float_type);
+   fs_reg dst1 = v->vgrf(glsl_type::float_type);
+   fs_reg dst2 = v->vgrf(glsl_type::float_type);
+   fs_reg src0 = v->vgrf(glsl_type::float_type);
+   fs_reg src1 = v->vgrf(glsl_type::float_type);
+   bld.MUL(dst0, src0, src1);
+   set_saturate(true, bld.MOV(dst1, dst0));
+   dst0.negate = true;
+   set_saturate(true, bld.MOV(dst2, dst0));
+
+   /* = Before =
+    *
+    * 0: mul(8)        dst0  src0  src1
+    * 1: mov.sat(8)    dst1  dst0
+    * 2: mov.sat(8)    dst2  -dst0
+    *
+    * = After =
+    * (no changes)
+    */
+
+   v->calculate_cfg();
+   bblock_t *block0 = v->cfg->blocks[0];
+
+   EXPECT_EQ(0, block0->start_ip);
+   EXPECT_EQ(2, block0->end_ip);
+
+   EXPECT_FALSE(saturate_propagation(v));
+   EXPECT_EQ(0, block0->start_ip);
+   EXPECT_EQ(2, block0->end_ip);
+   EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode);
+   EXPECT_FALSE(instruction(block0, 0)->saturate);
+   EXPECT_FALSE(instruction(block0, 0)->src[1].negate);
+   EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
+   EXPECT_TRUE(instruction(block0, 1)->saturate);
+   EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 2)->opcode);
+   EXPECT_TRUE(instruction(block0, 2)->src[0].negate);
+   EXPECT_TRUE(instruction(block0, 2)->saturate);
+}
+
+TEST_F(saturate_propagation_test, mul_neg_mov_sat_neg_mov_sat)
+{
+   const fs_builder &bld = v->bld;
+   fs_reg dst0 = v->vgrf(glsl_type::float_type);
+   fs_reg dst1 = v->vgrf(glsl_type::float_type);
+   fs_reg dst2 = v->vgrf(glsl_type::float_type);
+   fs_reg src0 = v->vgrf(glsl_type::float_type);
+   fs_reg src1 = v->vgrf(glsl_type::float_type);
+   bld.MUL(dst0, src0, src1);
+   dst0.negate = true;
+   set_saturate(true, bld.MOV(dst1, dst0));
+   set_saturate(true, bld.MOV(dst2, dst0));
+
+   /* = Before =
+    *
+    * 0: mul(8)        dst0  src0  src1
+    * 1: mov.sat(8)    dst1  -dst0
+    * 2: mov.sat(8)    dst2  -dst0
+    *
+    * = After =
+    * (no changes)
+    */
+
+   v->calculate_cfg();
+   bblock_t *block0 = v->cfg->blocks[0];
+
+   EXPECT_EQ(0, block0->start_ip);
+   EXPECT_EQ(2, block0->end_ip);
+
+   EXPECT_FALSE(saturate_propagation(v));
+   EXPECT_EQ(0, block0->start_ip);
+   EXPECT_EQ(2, block0->end_ip);
+   EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode);
    EXPECT_FALSE(instruction(block0, 0)->saturate);
+   EXPECT_FALSE(instruction(block0, 0)->src[1].negate);
    EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
+   EXPECT_TRUE(instruction(block0, 1)->src[0].negate);
    EXPECT_TRUE(instruction(block0, 1)->saturate);
+   EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 2)->opcode);
+   EXPECT_TRUE(instruction(block0, 2)->src[0].negate);
+   EXPECT_TRUE(instruction(block0, 2)->saturate);
 }
 
 TEST_F(saturate_propagation_test, abs_mov_sat)
@@ -369,7 +525,7 @@ TEST_F(saturate_propagation_test, intervening_dest_write)
    fs_reg src2 = v->vgrf(glsl_type::vec2_type);
    bld.ADD(offset(dst0, bld, 2), src0, src1);
    bld.emit(SHADER_OPCODE_TEX, dst0, src2)
-      ->regs_written = 4;
+      ->size_written = 4 * REG_SIZE;
    set_saturate(true, bld.MOV(dst1, offset(dst0, bld, 2)));
 
    /* = Before =