src/tint/lang/hlsl/writer/writer_test.cc

// Copyright 2024 The Dawn & Tint Authors
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#include "src/tint/lang/hlsl/writer/helper_test.h"

#include "gmock/gmock.h"

namespace tint::hlsl::writer {
namespace {

using namespace tint::core::fluent_types;     // NOLINT
using namespace tint::core::number_suffixes;  // NOLINT

TEST_F(HlslWriterTest, StripAllNames) {
    auto* str =
        ty.Struct(mod.symbols.New("MyStruct"), {
                                                   {mod.symbols.Register("a"), ty.i32()},
                                                   {mod.symbols.Register("b"), ty.vec4<i32>()},
                                               });
    auto* foo = b.Function("foo", ty.u32());
    auto* param = b.FunctionParam("param", ty.u32());
    foo->AppendParam(param);
    b.Append(foo->Block(), [&] {  //
        b.Return(foo, param);
    });

    auto* func = b.ComputeFunction("main");
    auto* idx = b.FunctionParam("idx", ty.u32());
    idx->SetBuiltin(core::BuiltinValue::kLocalInvocationIndex);
    func->AppendParam(idx);
    b.Append(func->Block(), [&] {  //
        auto* var = b.Var("str", ty.ptr<function>(str));
        auto* val = b.Load(var);
        mod.SetName(val, "val");
        auto* a = b.Access<i32>(val, 0_u);
        mod.SetName(a, "a");
        b.Let("let", b.Call<u32>(foo, idx));
        b.Return(func);
    });

    Options options;
    options.remapped_entry_point_name = "tint_entry_point";
    options.strip_all_names = true;
    ASSERT_TRUE(Generate(options)) << err_ << output_.hlsl;
    EXPECT_EQ(output_.hlsl, R"(struct tint_struct {
  int tint_member;
  int4 tint_member_1;
};

struct tint_struct_1 {
  uint tint_member_2 : SV_GroupIndex;
};


uint v(uint v_1) {
  return v_1;
}

void v_2(uint v_3) {
  tint_struct v_4 = (tint_struct)0;
  tint_struct v_5 = v_4;
  uint v_6 = v(v_3);
}

[numthreads(1, 1, 1)]
void tint_entry_point(tint_struct_1 v_8) {
  v_2(v_8.tint_member_2);
}

)");
}

}  // namespace
}  // namespace tint::hlsl::writer