/*
 * Copyright (C) 2021 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.
 */

#include "util/u_cpu_detect.h"
#include "bi_builder.h"
#include "bi_test.h"
#include "va_compiler.h"

#include <gtest/gtest.h>

static inline void
add_imm(bi_context *ctx)
{
   bi_foreach_instr_global(ctx, I) {
      va_fuse_add_imm(I);
   }
}

#define CASE(instr, expected) INSTRUCTION_CASE(instr, expected, add_imm)
#define NEGCASE(instr)        CASE(instr, instr)

class AddImm : public testing::Test {
 protected:
   AddImm()
   {
      mem_ctx = ralloc_context(NULL);
   }

   ~AddImm()
   {
      ralloc_free(mem_ctx);
   }

   void *mem_ctx;
};

TEST_F(AddImm, Basic)
{
   CASE(bi_mov_i32_to(b, bi_register(63), bi_imm_u32(0xABAD1DEA)),
        bi_iadd_imm_i32_to(b, bi_register(63), bi_zero(), 0xABAD1DEA));

   CASE(bi_fadd_f32_to(b, bi_register(1), bi_register(2), bi_imm_f32(42.0)),
        bi_fadd_imm_f32_to(b, bi_register(1), bi_register(2), fui(42.0)));

   CASE(bi_fadd_f32_to(b, bi_register(1), bi_discard(bi_register(2)),
                       bi_imm_f32(42.0)),
        bi_fadd_imm_f32_to(b, bi_register(1), bi_discard(bi_register(2)),
                           fui(42.0)));

   CASE(bi_fadd_f32_to(b, bi_register(1), bi_discard(bi_register(2)),
                       bi_neg(bi_imm_f32(42.0))),
        bi_fadd_imm_f32_to(b, bi_register(1), bi_discard(bi_register(2)),
                           fui(-42.0)));
}

TEST_F(AddImm, Commutativty)
{
   CASE(bi_fadd_f32_to(b, bi_register(1), bi_imm_f32(42.0), bi_register(2)),
        bi_fadd_imm_f32_to(b, bi_register(1), bi_register(2), fui(42.0)));
}

TEST_F(AddImm, NoModifiers)
{
   NEGCASE(bi_fadd_f32_to(b, bi_register(1), bi_abs(bi_register(2)),
                          bi_imm_f32(42.0)));
   NEGCASE(bi_fadd_f32_to(b, bi_register(1), bi_neg(bi_register(2)),
                          bi_imm_f32(42.0)));
   NEGCASE(bi_fadd_f32_to(b, bi_register(1),
                          bi_swz_16(bi_register(2), false, false),
                          bi_imm_f32(42.0)));
}

TEST_F(AddImm, NoClamp)
{
   NEGCASE({
      bi_instr *I =
         bi_fadd_f32_to(b, bi_register(1), bi_register(2), bi_imm_f32(42.0));
      I->clamp = BI_CLAMP_CLAMP_M1_1;
   });
}

TEST_F(AddImm, OtherTypes)
{
   CASE(bi_fadd_v2f16_to(b, bi_register(1), bi_register(2), bi_imm_f16(42.0)),
        bi_fadd_imm_v2f16_to(b, bi_register(1), bi_register(2), 0x51405140));

   CASE(bi_iadd_u32_to(b, bi_register(1), bi_register(2),
                       bi_imm_u32(0xDEADBEEF), false),
        bi_iadd_imm_i32_to(b, bi_register(1), bi_register(2), 0xDEADBEEF));

   CASE(bi_iadd_v2u16_to(b, bi_register(1), bi_register(2),
                         bi_imm_u32(0xDEADBEEF), false),
        bi_iadd_imm_v2i16_to(b, bi_register(1), bi_register(2), 0xDEADBEEF));

   CASE(bi_iadd_v4u8_to(b, bi_register(1), bi_register(2),
                        bi_imm_u32(0xDEADBEEF), false),
        bi_iadd_imm_v4i8_to(b, bi_register(1), bi_register(2), 0xDEADBEEF));

   CASE(bi_iadd_s32_to(b, bi_register(1), bi_register(2),
                       bi_imm_u32(0xDEADBEEF), false),
        bi_iadd_imm_i32_to(b, bi_register(1), bi_register(2), 0xDEADBEEF));

   CASE(bi_iadd_v2s16_to(b, bi_register(1), bi_register(2),
                         bi_imm_u32(0xDEADBEEF), false),
        bi_iadd_imm_v2i16_to(b, bi_register(1), bi_register(2), 0xDEADBEEF));

   CASE(bi_iadd_v4s8_to(b, bi_register(1), bi_register(2),
                        bi_imm_u32(0xDEADBEEF), false),
        bi_iadd_imm_v4i8_to(b, bi_register(1), bi_register(2), 0xDEADBEEF));

   NEGCASE(bi_iadd_u32_to(b, bi_register(1),
                          bi_swz_16(bi_register(2), false, false),
                          bi_imm_u32(0xDEADBEEF), false));
   NEGCASE(bi_iadd_v2u16_to(b, bi_register(1),
                            bi_swz_16(bi_register(2), false, false),
                            bi_imm_u32(0xDEADBEEF), false));
   NEGCASE(bi_iadd_u32_to(b, bi_register(1), bi_register(2),
                          bi_imm_u32(0xDEADBEEF), true));
   NEGCASE(bi_iadd_s32_to(b, bi_register(1),
                          bi_swz_16(bi_register(2), false, false),
                          bi_imm_u32(0xDEADBEEF), false));
   NEGCASE(bi_iadd_v2s16_to(b, bi_register(1),
                            bi_swz_16(bi_register(2), false, false),
                            bi_imm_u32(0xDEADBEEF), false));

   NEGCASE(bi_iadd_s32_to(b, bi_register(1), bi_register(2),
                          bi_imm_u32(0xDEADBEEF), true));
}

TEST_F(AddImm, Int8)
{
   bi_index idx = bi_register(2);
   idx.swizzle = BI_SWIZZLE_B0000;
   NEGCASE(
      bi_iadd_v4u8_to(b, bi_register(1), idx, bi_imm_u32(0xDEADBEEF), false));
   NEGCASE(
      bi_iadd_v4s8_to(b, bi_register(1), idx, bi_imm_u32(0xDEADBEEF), false));
}

TEST_F(AddImm, OnlyRTE)
{
   NEGCASE({
      bi_instr *I =
         bi_fadd_f32_to(b, bi_register(1), bi_register(2), bi_imm_f32(42.0));
      I->round = BI_ROUND_RTP;
   });

   NEGCASE({
      bi_instr *I =
         bi_fadd_v2f16_to(b, bi_register(1), bi_register(2), bi_imm_f16(42.0));
      I->round = BI_ROUND_RTZ;
   });
}