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v8/test/wasm-api-tests/globals.cc
Jakob Kummerow 97c75d37ad [wasm-c-api] Add test for globals 
Change-Id: I05bfc6eb98ea31b559d4195364e722ddf472afee
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1687677
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62571}
2019-07-08 14:24:56 +00:00

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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "test/wasm-api-tests/wasm-api-test.h"
namespace v8 {
namespace internal {
namespace wasm {
using ::wasm::GlobalType;
TEST_F(WasmCapiTest, Globals) {
const bool kMutable = true;
const bool kImmutable = false;
// Define imported and exported globals in the module.
const uint32_t cfi_index =
builder()->AddGlobalImport(CStrVector("const f32"), kWasmF32, kImmutable);
const uint32_t cii_index =
builder()->AddGlobalImport(CStrVector("const i64"), kWasmI64, kImmutable);
const uint32_t vfi_index =
builder()->AddGlobalImport(CStrVector("var f32"), kWasmF32, kMutable);
const uint32_t vii_index =
builder()->AddGlobalImport(CStrVector("var i64"), kWasmI64, kMutable);
const int kNumImported = 4;
const uint32_t cfe_index =
kNumImported + builder()->AddExportedGlobal(kWasmF32, kImmutable,
WasmInitExpr(5.f),
CStrVector("const f32"));
const uint32_t cie_index =
kNumImported + builder()->AddExportedGlobal(kWasmI64, kImmutable,
WasmInitExpr(int64_t{6}),
CStrVector("const i64"));
const uint32_t vfe_index =
kNumImported + builder()->AddExportedGlobal(kWasmF32, kMutable,
WasmInitExpr(7.f),
CStrVector("var f32"));
const uint32_t vie_index =
kNumImported + builder()->AddExportedGlobal(kWasmI64, kMutable,
WasmInitExpr(int64_t{8}),
CStrVector("var i64"));
// Define functions for inspecting globals.
ValueType f32_type[] = {kWasmF32};
ValueType i64_type[] = {kWasmI64};
FunctionSig return_f32(1, 0, f32_type);
FunctionSig return_i64(1, 0, i64_type);
byte gcfi[] = {WASM_GET_GLOBAL(cfi_index)};
AddExportedFunction(CStrVector("get const f32 import"), gcfi, sizeof(gcfi),
&return_f32);
byte gcii[] = {WASM_GET_GLOBAL(cii_index)};
AddExportedFunction(CStrVector("get const i64 import"), gcii, sizeof(gcii),
&return_i64);
byte gvfi[] = {WASM_GET_GLOBAL(vfi_index)};
AddExportedFunction(CStrVector("get var f32 import"), gvfi, sizeof(gvfi),
&return_f32);
byte gvii[] = {WASM_GET_GLOBAL(vii_index)};
AddExportedFunction(CStrVector("get var i64 import"), gvii, sizeof(gvii),
&return_i64);
byte gcfe[] = {WASM_GET_GLOBAL(cfe_index)};
AddExportedFunction(CStrVector("get const f32 export"), gcfe, sizeof(gcfe),
&return_f32);
byte gcie[] = {WASM_GET_GLOBAL(cie_index)};
AddExportedFunction(CStrVector("get const i64 export"), gcie, sizeof(gcie),
&return_i64);
byte gvfe[] = {WASM_GET_GLOBAL(vfe_index)};
AddExportedFunction(CStrVector("get var f32 export"), gvfe, sizeof(gvfe),
&return_f32);
byte gvie[] = {WASM_GET_GLOBAL(vie_index)};
AddExportedFunction(CStrVector("get var i64 export"), gvie, sizeof(gvie),
&return_i64);
// Define functions for manipulating globals.
FunctionSig param_f32(0, 1, f32_type);
FunctionSig param_i64(0, 1, i64_type);
byte svfi[] = {WASM_SET_GLOBAL(vfi_index, WASM_GET_LOCAL(0))};
AddExportedFunction(CStrVector("set var f32 import"), svfi, sizeof(svfi),
&param_f32);
byte svii[] = {WASM_SET_GLOBAL(vii_index, WASM_GET_LOCAL(0))};
AddExportedFunction(CStrVector("set var i64 import"), svii, sizeof(svii),
&param_i64);
byte svfe[] = {WASM_SET_GLOBAL(vfe_index, WASM_GET_LOCAL(0))};
AddExportedFunction(CStrVector("set var f32 export"), svfe, sizeof(svfe),
&param_f32);
byte svie[] = {WASM_SET_GLOBAL(vie_index, WASM_GET_LOCAL(0))};
AddExportedFunction(CStrVector("set var i64 export"), svie, sizeof(svie),
&param_i64);
// Create imported globals.
own<GlobalType*> const_f32_type =
GlobalType::make(ValType::make(::wasm::F32), ::wasm::CONST);
own<GlobalType*> const_i64_type =
GlobalType::make(ValType::make(::wasm::I64), ::wasm::CONST);
own<GlobalType*> var_f32_type =
GlobalType::make(ValType::make(::wasm::F32), ::wasm::VAR);
own<GlobalType*> var_i64_type =
GlobalType::make(ValType::make(::wasm::I64), ::wasm::VAR);
own<Global*> const_f32_import =
Global::make(store(), const_f32_type.get(), Val::f32(1));
own<Global*> const_i64_import =
Global::make(store(), const_i64_type.get(), Val::i64(2));
own<Global*> var_f32_import =
Global::make(store(), var_f32_type.get(), Val::f32(3));
own<Global*> var_i64_import =
Global::make(store(), var_i64_type.get(), Val::i64(4));
Extern* imports[] = {const_f32_import.get(), const_i64_import.get(),
var_f32_import.get(), var_i64_import.get()};
Instantiate(imports);
// Extract exports.
size_t i = 0;
Global* const_f32_export = GetExportedGlobal(i++);
Global* const_i64_export = GetExportedGlobal(i++);
Global* var_f32_export = GetExportedGlobal(i++);
Global* var_i64_export = GetExportedGlobal(i++);
Func* get_const_f32_import = GetExportedFunction(i++);
Func* get_const_i64_import = GetExportedFunction(i++);
Func* get_var_f32_import = GetExportedFunction(i++);
Func* get_var_i64_import = GetExportedFunction(i++);
Func* get_const_f32_export = GetExportedFunction(i++);
Func* get_const_i64_export = GetExportedFunction(i++);
Func* get_var_f32_export = GetExportedFunction(i++);
Func* get_var_i64_export = GetExportedFunction(i++);
Func* set_var_f32_import = GetExportedFunction(i++);
Func* set_var_i64_import = GetExportedFunction(i++);
Func* set_var_f32_export = GetExportedFunction(i++);
Func* set_var_i64_export = GetExportedFunction(i++);
// Check initial values.
EXPECT_EQ(1.f, const_f32_import->get().f32());
EXPECT_EQ(2, const_i64_import->get().i64());
EXPECT_EQ(3.f, var_f32_import->get().f32());
EXPECT_EQ(4, var_i64_import->get().i64());
EXPECT_EQ(5.f, const_f32_export->get().f32());
EXPECT_EQ(6, const_i64_export->get().i64());
EXPECT_EQ(7.f, var_f32_export->get().f32());
EXPECT_EQ(8, var_i64_export->get().i64());
Val result[1];
get_const_f32_import->call(nullptr, result);
EXPECT_EQ(1.f, result[0].f32());
get_const_i64_import->call(nullptr, result);
EXPECT_EQ(2, result[0].i64());
get_var_f32_import->call(nullptr, result);
EXPECT_EQ(3.f, result[0].f32());
get_var_i64_import->call(nullptr, result);
EXPECT_EQ(4, result[0].i64());
get_const_f32_export->call(nullptr, result);
EXPECT_EQ(5.f, result[0].f32());
get_const_i64_export->call(nullptr, result);
EXPECT_EQ(6, result[0].i64());
get_var_f32_export->call(nullptr, result);
EXPECT_EQ(7.f, result[0].f32());
get_var_i64_export->call(nullptr, result);
EXPECT_EQ(8, result[0].i64());
// Modify variables through the API and check again.
var_f32_import->set(Val::f32(33));
var_i64_import->set(Val::i64(34));
var_f32_export->set(Val::f32(35));
var_i64_export->set(Val::i64(36));
EXPECT_EQ(33.f, var_f32_import->get().f32());
EXPECT_EQ(34, var_i64_import->get().i64());
EXPECT_EQ(35.f, var_f32_export->get().f32());
EXPECT_EQ(36, var_i64_export->get().i64());
get_var_f32_import->call(nullptr, result);
EXPECT_EQ(33.f, result[0].f32());
get_var_i64_import->call(nullptr, result);
EXPECT_EQ(34, result[0].i64());
get_var_f32_export->call(nullptr, result);
EXPECT_EQ(35.f, result[0].f32());
get_var_i64_export->call(nullptr, result);
EXPECT_EQ(36, result[0].i64());
// Modify variables through calls and check again.
Val args[1];
args[0] = Val::f32(73);
set_var_f32_import->call(args, nullptr);
args[0] = Val::i64(74);
set_var_i64_import->call(args, nullptr);
args[0] = Val::f32(75);
set_var_f32_export->call(args, nullptr);
args[0] = Val::i64(76);
set_var_i64_export->call(args, nullptr);
EXPECT_EQ(73.f, var_f32_import->get().f32());
EXPECT_EQ(74, var_i64_import->get().i64());
EXPECT_EQ(75.f, var_f32_export->get().f32());
EXPECT_EQ(76, var_i64_export->get().i64());
get_var_f32_import->call(nullptr, result);
EXPECT_EQ(73.f, result[0].f32());
get_var_i64_import->call(nullptr, result);
EXPECT_EQ(74, result[0].i64());
get_var_f32_export->call(nullptr, result);
EXPECT_EQ(75.f, result[0].f32());
get_var_i64_export->call(nullptr, result);
EXPECT_EQ(76, result[0].i64());
}
} // namespace wasm
} // namespace internal
} // namespace v8
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