// Copyright 2020 The Tint Authors.  //
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "gmock/gmock.h"
#include "src/tint/reader/spirv/function.h"
#include "src/tint/reader/spirv/parser_impl_test_helper.h"
#include "src/tint/reader/spirv/spirv_tools_helpers_test.h"

namespace tint::reader::spirv {
namespace {

using ::testing::HasSubstr;

std::string CommonTypes() {
  return R"(
  %void = OpTypeVoid
  %voidfn = OpTypeFunction %void

  %uint = OpTypeInt 32 0
  %int = OpTypeInt 32 1
  %float = OpTypeFloat 32

  %uint_10 = OpConstant %uint 10
  %uint_20 = OpConstant %uint 20
  %int_30 = OpConstant %int 30
  %int_40 = OpConstant %int 40
  %float_50 = OpConstant %float 50
  %float_60 = OpConstant %float 60

  %ptr_uint = OpTypePointer Function %uint
  %ptr_int = OpTypePointer Function %int
  %ptr_float = OpTypePointer Function %float

  %v2uint = OpTypeVector %uint 2
  %v2int = OpTypeVector %int 2
  %v2float = OpTypeVector %float 2

  %v2uint_10_20 = OpConstantComposite %v2uint %uint_10 %uint_20
  %v2uint_20_10 = OpConstantComposite %v2uint %uint_20 %uint_10
  %v2int_30_40 = OpConstantComposite %v2int %int_30 %int_40
  %v2int_40_30 = OpConstantComposite %v2int %int_40 %int_30
  %v2float_50_60 = OpConstantComposite %v2float %float_50 %float_60
  %v2float_60_50 = OpConstantComposite %v2float %float_60 %float_50
)";
}

std::string SimplePreamble() {
  return R"(
  OpCapability Shader
  OpMemoryModel Logical Simple
  OpEntryPoint Fragment %100 "main"
  OpExecutionMode %100 OriginUpperLeft
)" + CommonTypes();
}

// Returns the AST dump for a given SPIR-V assembly constant.
std::string AstFor(std::string assembly) {
  if (assembly == "v2uint_10_20") {
    return "vec2<u32>(10u, 20u)";
  }
  if (assembly == "v2uint_20_10") {
    return "vec2<u32>(20u, 10u)";
  }
  if (assembly == "v2int_30_40") {
    return "vec2<i32>(30, 40)";
  }
  if (assembly == "v2int_40_30") {
    return "vec2<i32>(40, 30)";
  }
  if (assembly == "cast_int_v2uint_10_20") {
    return "bitcast<vec2<i32>(vec2<u32>(10u, 20u))";
  }
  if (assembly == "v2float_50_60") {
    return "vec2<f32>(50.0, 60.0))";
  }
  if (assembly == "v2float_60_50") {
    return "vec2<f32>(60.0, 50.0))";
  }
  return "bad case";
}

using SpvUnaryBitTest = SpvParserTestBase<::testing::Test>;

struct BinaryData {
  const std::string res_type;
  const std::string lhs;
  const std::string op;
  const std::string rhs;
  const std::string ast_type;
  const std::string ast_lhs;
  const std::string ast_op;
  const std::string ast_rhs;
};
inline std::ostream& operator<<(std::ostream& out, BinaryData data) {
  out << "BinaryData{" << data.res_type << "," << data.lhs << "," << data.op
      << "," << data.rhs << "," << data.ast_type << "," << data.ast_lhs << ","
      << data.ast_op << "," << data.ast_rhs << "}";
  return out;
}

using SpvBinaryBitTest =
    SpvParserTestBase<::testing::TestWithParam<BinaryData>>;
using SpvBinaryBitTestBasic = SpvParserTestBase<::testing::Test>;

TEST_P(SpvBinaryBitTest, EmitExpression) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = )" + GetParam().op +
                        " %" + GetParam().res_type + " %" + GetParam().lhs +
                        " %" + GetParam().rhs + R"(
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions())
      << p->error() << "\n"
      << assembly;
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  std::ostringstream ss;
  ss << "let x_1 : " << GetParam().ast_type << " = (" << GetParam().ast_lhs
     << " " << GetParam().ast_op << " " << GetParam().ast_rhs << ");";
  auto ast_body = fe.ast_body();
  EXPECT_THAT(test::ToString(p->program(), ast_body), HasSubstr(ss.str()))
      << assembly;
}

// Use this when the result might have extra bitcasts on the outside.
struct BinaryDataGeneral {
  const std::string res_type;
  const std::string lhs;
  const std::string op;
  const std::string rhs;
  const std::string wgsl_type;
  const std::string expected;
};
inline std::ostream& operator<<(std::ostream& out, BinaryDataGeneral data) {
  out << "BinaryDataGeneral{" << data.res_type << "," << data.lhs << ","
      << data.op << "," << data.rhs << "," << data.wgsl_type << ","
      << data.expected << "}";
  return out;
}

using SpvBinaryBitGeneralTest =
    SpvParserTestBase<::testing::TestWithParam<BinaryDataGeneral>>;

TEST_P(SpvBinaryBitGeneralTest, EmitExpression) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = )" + GetParam().op +
                        " %" + GetParam().res_type + " %" + GetParam().lhs +
                        " %" + GetParam().rhs + R"(
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions())
      << p->error() << "\n"
      << assembly;
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error() << assembly;
  std::ostringstream ss;
  ss << "let x_1 : " << GetParam().wgsl_type << " = " << GetParam().expected
     << ";\nreturn;\n";
  auto ast_body = fe.ast_body();
  auto got = test::ToString(p->program(), ast_body);
  EXPECT_THAT(got, HasSubstr(ss.str())) << "got:\n" << got << assembly;
}

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_ShiftLeftLogical_Arg2Unsigned,
    SpvBinaryBitTest,
    ::testing::Values(
        // uint uint -> uint
        BinaryData{"uint", "uint_10", "OpShiftLeftLogical", "uint_20", "u32",
                   "10u", "<<", "20u"},
        // int, uint -> int
        BinaryData{"int", "int_30", "OpShiftLeftLogical", "uint_20", "i32",
                   "30", "<<", "20u"},
        // v2uint v2uint -> v2uint
        BinaryData{"v2uint", "v2uint_10_20", "OpShiftLeftLogical",
                   "v2uint_20_10", "vec2<u32>", AstFor("v2uint_10_20"), "<<",
                   AstFor("v2uint_20_10")},
        // v2int, v2uint -> v2int
        BinaryData{"v2int", "v2int_30_40", "OpShiftLeftLogical", "v2uint_20_10",
                   "vec2<i32>", AstFor("v2int_30_40"), "<<",
                   AstFor("v2uint_20_10")}));

INSTANTIATE_TEST_SUITE_P(
    // WGSL requires second operand to be unsigned, so insert bitcasts
    SpvParserTest_ShiftLeftLogical_Arg2Signed,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // int, int -> int
        BinaryDataGeneral{"int", "int_30", "OpShiftLeftLogical", "int_40",
                          "i32", "(30 << bitcast<u32>(40))"},
        // uint, int -> uint
        BinaryDataGeneral{"uint", "uint_10", "OpShiftLeftLogical", "int_40",
                          "u32", "(10u << bitcast<u32>(40))"},
        // v2uint, v2int -> v2uint
        BinaryDataGeneral{"v2uint", "v2uint_10_20", "OpShiftLeftLogical",
                          "v2uint_20_10", "vec2<u32>",
                          "(vec2<u32>(10u, 20u) << vec2<u32>(20u, 10u))"},
        // v2int, v2int -> v2int
        BinaryDataGeneral{
            "v2int", "v2int_30_40", "OpShiftLeftLogical", "v2int_40_30",
            "vec2<i32>",
            "(vec2<i32>(30, 40) << bitcast<vec2<u32>>(vec2<i32>(40, 30)))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_ShiftLeftLogical_BitcastResult,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // int, int -> uint
        BinaryDataGeneral{"uint", "int_30", "OpShiftLeftLogical", "uint_10",
                          "u32", "bitcast<u32>((30 << 10u))"},
        // v2uint, v2int -> v2uint
        BinaryDataGeneral{
            "v2uint", "v2int_30_40", "OpShiftLeftLogical", "v2uint_20_10",
            "vec2<u32>",
            "bitcast<vec2<u32>>((vec2<i32>(30, 40) << vec2<u32>(20u, 10u)))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_ShiftRightLogical_Arg2Unsigned,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // uint, uint -> uint
        BinaryDataGeneral{"uint", "uint_10", "OpShiftRightLogical", "uint_20",
                          "u32", "(10u >> 20u)"},
        // int, uint -> int
        BinaryDataGeneral{"int", "int_30", "OpShiftRightLogical", "uint_20",
                          "i32", "bitcast<i32>((bitcast<u32>(30) >> 20u))"},
        // v2uint, v2uint -> v2uint
        BinaryDataGeneral{"v2uint", "v2uint_10_20", "OpShiftRightLogical",
                          "v2uint_20_10", "vec2<u32>",
                          "(vec2<u32>(10u, 20u) >> vec2<u32>(20u, 10u))"},
        // v2int, v2uint -> v2int
        BinaryDataGeneral{
            "v2int", "v2int_30_40", "OpShiftRightLogical", "v2uint_10_20",
            "vec2<i32>",
            R"(bitcast<vec2<i32>>((bitcast<vec2<u32>>(vec2<i32>(30, 40)) >> vec2<u32>(10u, 20u))))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_ShiftRightLogical_Arg2Signed,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // uint, int -> uint
        BinaryDataGeneral{"uint", "uint_10", "OpShiftRightLogical", "int_30",
                          "u32", "(10u >> bitcast<u32>(30))"},
        // int, int -> int
        BinaryDataGeneral{
            "int", "int_30", "OpShiftRightLogical", "int_40", "i32",
            "bitcast<i32>((bitcast<u32>(30) >> bitcast<u32>(40)))"},
        // v2uint, v2int -> v2uint
        BinaryDataGeneral{
            "v2uint", "v2uint_10_20", "OpShiftRightLogical", "v2int_30_40",
            "vec2<u32>",
            "(vec2<u32>(10u, 20u) >> bitcast<vec2<u32>>(vec2<i32>(30, 40)))"},
        // v2int, v2int -> v2int
        BinaryDataGeneral{
            "v2int", "v2int_40_30", "OpShiftRightLogical", "v2int_30_40",
            "vec2<i32>",
            R"(bitcast<vec2<i32>>((bitcast<vec2<u32>>(vec2<i32>(40, 30)) >> bitcast<vec2<u32>>(vec2<i32>(30, 40)))))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_ShiftRightLogical_BitcastResult,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // uint, uint -> int
        BinaryDataGeneral{"int", "uint_20", "OpShiftRightLogical", "uint_10",
                          "i32", "bitcast<i32>((20u >> 10u))"},
        // v2uint, v2uint -> v2int
        BinaryDataGeneral{
            "v2int", "v2uint_10_20", "OpShiftRightLogical", "v2uint_20_10",
            "vec2<i32>",
            R"(bitcast<vec2<i32>>((vec2<u32>(10u, 20u) >> vec2<u32>(20u, 10u))))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_ShiftRightArithmetic_Arg2Unsigned,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // uint, uint -> uint
        BinaryDataGeneral{"uint", "uint_10", "OpShiftRightArithmetic",
                          "uint_20", "u32",
                          "bitcast<u32>((bitcast<i32>(10u) >> 20u))"},
        // int, uint -> int
        BinaryDataGeneral{"int", "int_30", "OpShiftRightArithmetic", "uint_10",
                          "i32", "(30 >> 10u)"},
        // v2uint, v2uint -> v2uint
        BinaryDataGeneral{
            "v2uint", "v2uint_10_20", "OpShiftRightArithmetic", "v2uint_20_10",
            "vec2<u32>",
            R"(bitcast<vec2<u32>>((bitcast<vec2<i32>>(vec2<u32>(10u, 20u)) >> vec2<u32>(20u, 10u))))"},
        // v2int, v2uint -> v2int
        BinaryDataGeneral{"v2int", "v2int_40_30", "OpShiftRightArithmetic",
                          "v2uint_20_10", "vec2<i32>",
                          "(vec2<i32>(40, 30) >> vec2<u32>(20u, 10u))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_ShiftRightArithmetic_Arg2Signed,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // uint, int -> uint
        BinaryDataGeneral{
            "uint", "uint_10", "OpShiftRightArithmetic", "int_30", "u32",
            "bitcast<u32>((bitcast<i32>(10u) >> bitcast<u32>(30)))"},
        // int, int -> int
        BinaryDataGeneral{"int", "int_30", "OpShiftRightArithmetic", "int_40",
                          "i32", "(30 >> bitcast<u32>(40))"},
        // v2uint, v2int -> v2uint
        BinaryDataGeneral{
            "v2uint", "v2uint_10_20", "OpShiftRightArithmetic", "v2int_30_40",
            "vec2<u32>",
            R"(bitcast<vec2<u32>>((bitcast<vec2<i32>>(vec2<u32>(10u, 20u)) >> bitcast<vec2<u32>>(vec2<i32>(30, 40)))))"},
        // v2int, v2int -> v2int
        BinaryDataGeneral{
            "v2int", "v2int_40_30", "OpShiftRightArithmetic", "v2int_30_40",
            "vec2<i32>",
            "(vec2<i32>(40, 30) >> bitcast<vec2<u32>>(vec2<i32>(30, 40)))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_ShiftRightArithmetic_BitcastResult,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // int, uint -> uint
        BinaryDataGeneral{"uint", "int_30", "OpShiftRightArithmetic", "uint_10",
                          "u32", "bitcast<u32>((30 >> 10u))"},
        // v2int, v2uint -> v2uint
        BinaryDataGeneral{
            "v2uint", "v2int_30_40", "OpShiftRightArithmetic", "v2uint_20_10",
            "vec2<u32>",
            "bitcast<vec2<u32>>((vec2<i32>(30, 40) >> vec2<u32>(20u, 10u)))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_BitwiseAnd,
    SpvBinaryBitTest,
    ::testing::Values(
        // Both uint
        BinaryData{"uint", "uint_10", "OpBitwiseAnd", "uint_20", "u32", "10u",
                   "&", "20u"},
        // Both int
        BinaryData{"int", "int_30", "OpBitwiseAnd", "int_40", "i32", "30", "&",
                   "40"},
        // TODO(crbug.com/tint/678): Resolver fails on vector bitwise operations
        // Both v2uint
        BinaryData{"v2uint", "v2uint_10_20", "OpBitwiseAnd", "v2uint_20_10",
                   "vec2<u32>", AstFor("v2uint_10_20"), "&",
                   AstFor("v2uint_20_10")},
        // Both v2int
        BinaryData{"v2int", "v2int_30_40", "OpBitwiseAnd", "v2int_40_30",
                   "vec2<i32>", AstFor("v2int_30_40"), "&",
                   AstFor("v2int_40_30")}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_BitwiseAnd_MixedSignedness,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // Mixed, uint <- int uint
        BinaryDataGeneral{"uint", "int_30", "OpBitwiseAnd", "uint_10", "u32",
                          "bitcast<u32>((30 & bitcast<i32>(10u)))"},
        // Mixed, int <- int uint
        BinaryDataGeneral{"int", "int_30", "OpBitwiseAnd", "uint_10", "i32",
                          "(30 & bitcast<i32>(10u))"},
        // Mixed, uint <- uint int
        BinaryDataGeneral{"uint", "uint_10", "OpBitwiseAnd", "int_30", "u32",
                          "(10u & bitcast<u32>(30))"},
        // Mixed, int <- uint uint
        BinaryDataGeneral{"int", "uint_20", "OpBitwiseAnd", "uint_10", "i32",
                          "bitcast<i32>((20u & 10u))"},
        // Mixed, returning v2uint
        BinaryDataGeneral{
            "v2uint", "v2int_30_40", "OpBitwiseAnd", "v2uint_10_20",
            "vec2<u32>",
            R"(bitcast<vec2<u32>>((vec2<i32>(30, 40) & bitcast<vec2<i32>>(vec2<u32>(10u, 20u)))))"},
        // Mixed, returning v2int
        BinaryDataGeneral{
            "v2int", "v2uint_10_20", "OpBitwiseAnd", "v2int_40_30", "vec2<i32>",
            R"(bitcast<vec2<i32>>((vec2<u32>(10u, 20u) & bitcast<vec2<u32>>(vec2<i32>(40, 30)))))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_BitwiseOr,
    SpvBinaryBitTest,
    ::testing::Values(
        // Both uint
        BinaryData{"uint", "uint_10", "OpBitwiseOr", "uint_20", "u32", "10u",
                   "|", "20u"},
        // Both int
        BinaryData{"int", "int_30", "OpBitwiseOr", "int_40", "i32", "30", "|",
                   "40"},
        // TODO(crbug.com/tint/678): Resolver fails on vector bitwise operations
        // Both v2uint
        BinaryData{"v2uint", "v2uint_10_20", "OpBitwiseOr", "v2uint_20_10",
                   "vec2<u32>", AstFor("v2uint_10_20"), "|",
                   AstFor("v2uint_20_10")},
        // Both v2int
        BinaryData{"v2int", "v2int_30_40", "OpBitwiseOr", "v2int_40_30",
                   "vec2<i32>", AstFor("v2int_30_40"), "|",
                   AstFor("v2int_40_30")}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_BitwiseOr_MixedSignedness,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // Mixed, uint <- int uint
        BinaryDataGeneral{"uint", "int_30", "OpBitwiseOr", "uint_10", "u32",
                          "bitcast<u32>((30 | bitcast<i32>(10u)))"},
        // Mixed, int <- int uint
        BinaryDataGeneral{"int", "int_30", "OpBitwiseOr", "uint_10", "i32",
                          "(30 | bitcast<i32>(10u))"},
        // Mixed, uint <- uint int
        BinaryDataGeneral{"uint", "uint_10", "OpBitwiseOr", "int_30", "u32",
                          "(10u | bitcast<u32>(30))"},
        // Mixed, int <- uint uint
        BinaryDataGeneral{"int", "uint_20", "OpBitwiseOr", "uint_10", "i32",
                          "bitcast<i32>((20u | 10u))"},
        // Mixed, returning v2uint
        BinaryDataGeneral{
            "v2uint", "v2int_30_40", "OpBitwiseOr", "v2uint_10_20", "vec2<u32>",
            R"(bitcast<vec2<u32>>((vec2<i32>(30, 40) | bitcast<vec2<i32>>(vec2<u32>(10u, 20u)))))"},
        // Mixed, returning v2int
        BinaryDataGeneral{
            "v2int", "v2uint_10_20", "OpBitwiseOr", "v2int_40_30", "vec2<i32>",
            R"(bitcast<vec2<i32>>((vec2<u32>(10u, 20u) | bitcast<vec2<u32>>(vec2<i32>(40, 30)))))"}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_BitwiseXor,
    SpvBinaryBitTest,
    ::testing::Values(
        // Both uint
        BinaryData{"uint", "uint_10", "OpBitwiseXor", "uint_20", "u32", "10u",
                   "^", "20u"},
        // Both int
        BinaryData{"int", "int_30", "OpBitwiseXor", "int_40", "i32", "30", "^",
                   "40"},
        // TODO(crbug.com/tint/678): Resolver fails on vector bitwise operations
        // Both v2uint
        BinaryData{"v2uint", "v2uint_10_20", "OpBitwiseXor", "v2uint_20_10",
                   "vec2<u32>", AstFor("v2uint_10_20"), "^",
                   AstFor("v2uint_20_10")},
        // Both v2int
        BinaryData{"v2int", "v2int_30_40", "OpBitwiseXor", "v2int_40_30",
                   "vec2<i32>", AstFor("v2int_30_40"), "^",
                   AstFor("v2int_40_30")}));

INSTANTIATE_TEST_SUITE_P(
    SpvParserTest_BitwiseXor_MixedSignedness,
    SpvBinaryBitGeneralTest,
    ::testing::Values(
        // Mixed, uint <- int uint
        BinaryDataGeneral{"uint", "int_30", "OpBitwiseXor", "uint_10", "u32",
                          "bitcast<u32>((30 ^ bitcast<i32>(10u)))"},
        // Mixed, int <- int uint
        BinaryDataGeneral{"int", "int_30", "OpBitwiseXor", "uint_10", "i32",
                          "(30 ^ bitcast<i32>(10u))"},
        // Mixed, uint <- uint int
        BinaryDataGeneral{"uint", "uint_10", "OpBitwiseXor", "int_30", "u32",
                          "(10u ^ bitcast<u32>(30))"},
        // Mixed, int <- uint uint
        BinaryDataGeneral{"int", "uint_20", "OpBitwiseXor", "uint_10", "i32",
                          "bitcast<i32>((20u ^ 10u))"},
        // Mixed, returning v2uint
        BinaryDataGeneral{
            "v2uint", "v2int_30_40", "OpBitwiseXor", "v2uint_10_20",
            "vec2<u32>",
            R"(bitcast<vec2<u32>>((vec2<i32>(30, 40) ^ bitcast<vec2<i32>>(vec2<u32>(10u, 20u)))))"},
        // Mixed, returning v2int
        BinaryDataGeneral{
            "v2int", "v2uint_10_20", "OpBitwiseXor", "v2int_40_30", "vec2<i32>",
            R"(bitcast<vec2<i32>>((vec2<u32>(10u, 20u) ^ bitcast<vec2<u32>>(vec2<i32>(40, 30)))))"}));

TEST_F(SpvUnaryBitTest, Not_Int_Int) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = OpNot %int %int_30
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : i32 = ~(30);"));
}

TEST_F(SpvUnaryBitTest, Not_Int_Uint) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = OpNot %int %uint_10
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : i32 = bitcast<i32>(~(10u));"));
}

TEST_F(SpvUnaryBitTest, Not_Uint_Int) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = OpNot %uint %int_30
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : u32 = bitcast<u32>(~(30));"));
}

TEST_F(SpvUnaryBitTest, Not_Uint_Uint) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = OpNot %uint %uint_10
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : u32 = ~(10u);"));
}

TEST_F(SpvUnaryBitTest, Not_SignedVec_SignedVec) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = OpNot %v2int %v2int_30_40
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : vec2<i32> = ~(vec2<i32>(30, 40));"));
}

TEST_F(SpvUnaryBitTest, Not_SignedVec_UnsignedVec) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = OpNot %v2int %v2uint_10_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body,
      HasSubstr(
          "let x_1 : vec2<i32> = bitcast<vec2<i32>>(~(vec2<u32>(10u, 20u)));"));
}

TEST_F(SpvUnaryBitTest, Not_UnsignedVec_SignedVec) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = OpNot %v2uint %v2int_30_40
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body,
      HasSubstr(
          "let x_1 : vec2<u32> = bitcast<vec2<u32>>(~(vec2<i32>(30, 40)));"));
}
TEST_F(SpvUnaryBitTest, Not_UnsignedVec_UnsignedVec) {
  const auto assembly = SimplePreamble() + R"(
     %100 = OpFunction %void None %voidfn
     %entry = OpLabel
     %1 = OpNot %v2uint %v2uint_10_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : vec2<u32> = ~(vec2<u32>(10u, 20u));"));
}

std::string BitTestPreamble() {
  return R"(
  OpCapability Shader
  %glsl = OpExtInstImport "GLSL.std.450"
  OpMemoryModel Logical GLSL450
  OpEntryPoint GLCompute %100 "main"
  OpExecutionMode %100 LocalSize 1 1 1

  OpName %u1 "u1"
  OpName %i1 "i1"
  OpName %v2u1 "v2u1"
  OpName %v2i1 "v2i1"

)" + CommonTypes() +
         R"(

  %100 = OpFunction %void None %voidfn
  %entry = OpLabel

  %u1 = OpCopyObject %uint %uint_10
  %i1 = OpCopyObject %int %int_30
  %v2u1 = OpCopyObject %v2uint %v2uint_10_20
  %v2i1 = OpCopyObject %v2int %v2int_30_40
)";
}

TEST_F(SpvUnaryBitTest, BitCount_Uint_Uint) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitCount %uint %u1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : u32 = countOneBits(u1);")) << body;
}

TEST_F(SpvUnaryBitTest, BitCount_Uint_Int) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitCount %uint %i1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body,
              HasSubstr("let x_1 : u32 = bitcast<u32>(countOneBits(i1));"))
      << body;
}

TEST_F(SpvUnaryBitTest, BitCount_Int_Uint) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitCount %int %u1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body,
              HasSubstr("let x_1 : i32 = bitcast<i32>(countOneBits(u1));"))
      << body;
}

TEST_F(SpvUnaryBitTest, BitCount_Int_Int) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitCount %int %i1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : i32 = countOneBits(i1);")) << body;
}

TEST_F(SpvUnaryBitTest, BitCount_UintVector_UintVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitCount %v2uint %v2u1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : vec2<u32> = countOneBits(v2u1);"))
      << body;
}

TEST_F(SpvUnaryBitTest, BitCount_UintVector_IntVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitCount %v2uint %v2i1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body,
      HasSubstr(
          "let x_1 : vec2<u32> = bitcast<vec2<u32>>(countOneBits(v2i1));"))
      << body;
}

TEST_F(SpvUnaryBitTest, BitCount_IntVector_UintVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitCount %v2int %v2u1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body,
      HasSubstr(
          "let x_1 : vec2<i32> = bitcast<vec2<i32>>(countOneBits(v2u1));"))
      << body;
}

TEST_F(SpvUnaryBitTest, BitCount_IntVector_IntVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitCount %v2int %v2i1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : vec2<i32> = countOneBits(v2i1);"))
      << body;
}

TEST_F(SpvUnaryBitTest, BitReverse_Uint_Uint) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitReverse %uint %u1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : u32 = reverseBits(u1);")) << body;
}

TEST_F(SpvUnaryBitTest, BitReverse_Uint_Int) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitReverse %uint %i1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  EXPECT_FALSE(p->Parse());
  EXPECT_FALSE(p->success());
  EXPECT_THAT(
      p->error(),
      HasSubstr("Expected Base Type to be equal to Result Type: BitReverse"));
}

TEST_F(SpvUnaryBitTest, BitReverse_Int_Uint) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitReverse %int %u1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  EXPECT_FALSE(p->Parse());
  EXPECT_FALSE(p->success());
  EXPECT_THAT(
      p->error(),
      HasSubstr("Expected Base Type to be equal to Result Type: BitReverse"));
}

TEST_F(SpvUnaryBitTest, BitReverse_Int_Int) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitReverse %int %i1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : i32 = reverseBits(i1);")) << body;
}

TEST_F(SpvUnaryBitTest, BitReverse_UintVector_UintVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitReverse %v2uint %v2u1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : vec2<u32> = reverseBits(v2u1);"))
      << body;
}

TEST_F(SpvUnaryBitTest, BitReverse_UintVector_IntVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitReverse %v2uint %v2i1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  EXPECT_FALSE(p->Parse());
  EXPECT_FALSE(p->success());
  EXPECT_THAT(
      p->error(),
      HasSubstr("Expected Base Type to be equal to Result Type: BitReverse"));
}

TEST_F(SpvUnaryBitTest, BitReverse_IntVector_UintVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitReverse %v2int %v2u1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  EXPECT_FALSE(p->Parse());
  EXPECT_FALSE(p->success());
  EXPECT_THAT(
      p->error(),
      HasSubstr("Expected Base Type to be equal to Result Type: BitReverse"));
}

TEST_F(SpvUnaryBitTest, BitReverse_IntVector_IntVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitReverse %v2int %v2i1
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body, HasSubstr("let x_1 : vec2<i32> = reverseBits(v2i1);"))
      << body;
}

TEST_F(SpvUnaryBitTest, InsertBits_Int) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitFieldInsert %v2int %int_30 %int_40 %uint_10 %uint_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body,
              HasSubstr("let x_1 : vec2<i32> = insertBits(30, 40, 10u, 20u);"))
      << body;
}

TEST_F(SpvUnaryBitTest, InsertBits_IntVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitFieldInsert %v2int %v2int_30_40 %v2int_40_30 %uint_10 %uint_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body,
      HasSubstr(
          R"(let x_1 : vec2<i32> = insertBits(vec2<i32>(30, 40), vec2<i32>(40, 30), 10u, 20u);)"))
      << body;
}

TEST_F(SpvUnaryBitTest, InsertBits_Uint) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitFieldInsert %v2uint %uint_20 %uint_10 %uint_10 %uint_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body, HasSubstr("let x_1 : vec2<u32> = insertBits(20u, 10u, 10u, 20u);"))
      << body;
}

TEST_F(SpvUnaryBitTest, InsertBits_UintVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitFieldInsert %v2uint %v2uint_10_20 %v2uint_20_10 %uint_10 %uint_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body,
      HasSubstr(
          R"(let x_1 : vec2<u32> = insertBits(vec2<u32>(10u, 20u), vec2<u32>(20u, 10u), 10u, 20u);)"))
      << body;
}

TEST_F(SpvUnaryBitTest, ExtractBits_Int) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitFieldSExtract %v2int %int_30 %uint_10 %uint_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body,
              HasSubstr("let x_1 : vec2<i32> = extractBits(30, 10u, 20u);"))
      << body;
}

TEST_F(SpvUnaryBitTest, ExtractBits_IntVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitFieldSExtract %v2int %v2int_30_40 %uint_10 %uint_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body,
      HasSubstr(
          "let x_1 : vec2<i32> = extractBits(vec2<i32>(30, 40), 10u, 20u);"))
      << body;
}

TEST_F(SpvUnaryBitTest, ExtractBits_Uint) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitFieldUExtract %v2uint %uint_20 %uint_10 %uint_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(body,
              HasSubstr("let x_1 : vec2<u32> = extractBits(20u, 10u, 20u);"))
      << body;
}

TEST_F(SpvUnaryBitTest, ExtractBits_UintVector) {
  const auto assembly = BitTestPreamble() + R"(
     %1 = OpBitFieldUExtract %v2uint %v2uint_10_20 %uint_10 %uint_20
     OpReturn
     OpFunctionEnd
  )";
  auto p = parser(test::Assemble(assembly));
  ASSERT_TRUE(p->BuildAndParseInternalModuleExceptFunctions());
  auto fe = p->function_emitter(100);
  EXPECT_TRUE(fe.EmitBody()) << p->error();
  auto ast_body = fe.ast_body();
  auto body = test::ToString(p->program(), ast_body);
  EXPECT_THAT(
      body,
      HasSubstr(
          "let x_1 : vec2<u32> = extractBits(vec2<u32>(10u, 20u), 10u, 20u);"))
      << body;
}

}  // namespace
}  // namespace tint::reader::spirv