| // Copyright 2016 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 "src/wasm/wasm-macro-gen.h" |
| |
| #include "test/cctest/cctest.h" |
| #include "test/cctest/compiler/value-helper.h" |
| #include "test/cctest/wasm/wasm-run-utils.h" |
| |
| using namespace v8::base; |
| using namespace v8::internal; |
| using namespace v8::internal::compiler; |
| using namespace v8::internal::wasm; |
| |
| namespace { |
| |
| typedef float (*FloatUnOp)(float); |
| typedef float (*FloatBinOp)(float, float); |
| typedef int32_t (*FloatCompareOp)(float, float); |
| typedef int32_t (*Int32BinOp)(int32_t, int32_t); |
| |
| template <typename T> |
| T Negate(T a) { |
| return -a; |
| } |
| |
| template <typename T> |
| T Add(T a, T b) { |
| return a + b; |
| } |
| |
| template <typename T> |
| T Sub(T a, T b) { |
| return a - b; |
| } |
| |
| template <typename T> |
| int32_t Equal(T a, T b) { |
| return a == b ? 0xFFFFFFFF : 0; |
| } |
| |
| template <typename T> |
| int32_t NotEqual(T a, T b) { |
| return a != b ? 0xFFFFFFFF : 0; |
| } |
| |
| #if V8_TARGET_ARCH_ARM |
| int32_t Equal(float a, float b) { return a == b ? 0xFFFFFFFF : 0; } |
| |
| int32_t NotEqual(float a, float b) { return a != b ? 0xFFFFFFFF : 0; } |
| #endif // V8_TARGET_ARCH_ARM |
| |
| } // namespace |
| |
| // TODO(gdeepti): These are tests using sample values to verify functional |
| // correctness of opcodes, add more tests for a range of values and macroize |
| // tests. |
| |
| // TODO(bbudge) Figure out how to compare floats in Wasm code that can handle |
| // NaNs. For now, our tests avoid using NaNs. |
| #define WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lane_value, lane_index) \ |
| WASM_IF(WASM_##LANE_TYPE##_NE(WASM_GET_LOCAL(lane_value), \ |
| WASM_SIMD_##TYPE##_EXTRACT_LANE( \ |
| lane_index, WASM_GET_LOCAL(value))), \ |
| WASM_RETURN1(WASM_ZERO)) |
| |
| #define WASM_SIMD_CHECK4(TYPE, value, LANE_TYPE, lv0, lv1, lv2, lv3) \ |
| WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv0, 0) \ |
| , WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv1, 1), \ |
| WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv2, 2), \ |
| WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv3, 3) |
| |
| #define WASM_SIMD_CHECK_SPLAT4(TYPE, value, LANE_TYPE, lv) \ |
| WASM_SIMD_CHECK4(TYPE, value, LANE_TYPE, lv, lv, lv, lv) |
| |
| #define WASM_SIMD_CHECK_F32_LANE(value, lane_value, lane_index) \ |
| WASM_IF(WASM_F32_NE(WASM_GET_LOCAL(lane_value), \ |
| WASM_SIMD_F32x4_EXTRACT_LANE(lane_index, \ |
| WASM_GET_LOCAL(value))), \ |
| WASM_RETURN1(WASM_ZERO)) |
| |
| #define WASM_SIMD_CHECK_F32x4(value, lv0, lv1, lv2, lv3) \ |
| WASM_SIMD_CHECK_F32_LANE(value, lv0, 0) \ |
| , WASM_SIMD_CHECK_F32_LANE(value, lv1, 1), \ |
| WASM_SIMD_CHECK_F32_LANE(value, lv2, 2), \ |
| WASM_SIMD_CHECK_F32_LANE(value, lv3, 3) |
| |
| #define WASM_SIMD_CHECK_SPLAT_F32x4(value, lv) \ |
| WASM_SIMD_CHECK_F32x4(value, lv, lv, lv, lv) |
| |
| #if V8_TARGET_ARCH_ARM |
| WASM_EXEC_TEST(F32x4Splat) { |
| FLAG_wasm_simd_prototype = true; |
| |
| WasmRunner<int32_t, float> r(kExecuteCompiled); |
| byte lane_val = 0; |
| byte simd = r.AllocateLocal(kWasmS128); |
| BUILD( |
| r, |
| WASM_BLOCK( |
| WASM_SET_LOCAL(simd, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(lane_val))), |
| WASM_SIMD_CHECK_SPLAT_F32x4(simd, lane_val), WASM_RETURN1(WASM_ONE))); |
| |
| FOR_FLOAT32_INPUTS(i) { |
| if (std::isnan(*i)) continue; |
| CHECK_EQ(1, r.Call(*i)); |
| } |
| } |
| |
| WASM_EXEC_TEST(F32x4ReplaceLane) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, float, float> r(kExecuteCompiled); |
| byte old_val = 0; |
| byte new_val = 1; |
| byte simd = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK( |
| WASM_SET_LOCAL(simd, |
| WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(old_val))), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_F32x4_REPLACE_LANE(0, WASM_GET_LOCAL(simd), |
| WASM_GET_LOCAL(new_val))), |
| WASM_SIMD_CHECK4(F32x4, simd, F32, new_val, old_val, old_val, |
| old_val), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_F32x4_REPLACE_LANE(1, WASM_GET_LOCAL(simd), |
| WASM_GET_LOCAL(new_val))), |
| WASM_SIMD_CHECK4(F32x4, simd, F32, new_val, new_val, old_val, |
| old_val), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_F32x4_REPLACE_LANE(2, WASM_GET_LOCAL(simd), |
| WASM_GET_LOCAL(new_val))), |
| WASM_SIMD_CHECK4(F32x4, simd, F32, new_val, new_val, new_val, |
| old_val), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_F32x4_REPLACE_LANE(3, WASM_GET_LOCAL(simd), |
| WASM_GET_LOCAL(new_val))), |
| WASM_SIMD_CHECK_SPLAT4(F32x4, simd, F32, new_val), |
| WASM_RETURN1(WASM_ONE))); |
| |
| CHECK_EQ(1, r.Call(3.14159, -1.5)); |
| } |
| |
| // Tests both signed and unsigned conversion. |
| WASM_EXEC_TEST(F32x4FromInt32x4) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, int32_t, float, float> r(kExecuteCompiled); |
| byte a = 0; |
| byte expected_signed = 1; |
| byte expected_unsigned = 2; |
| byte simd0 = r.AllocateLocal(kWasmS128); |
| byte simd1 = r.AllocateLocal(kWasmS128); |
| byte simd2 = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK( |
| WASM_SET_LOCAL(simd0, WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(a))), |
| WASM_SET_LOCAL( |
| simd1, WASM_SIMD_F32x4_FROM_I32x4(WASM_GET_LOCAL(simd0))), |
| WASM_SIMD_CHECK_SPLAT_F32x4(simd1, expected_signed), |
| WASM_SET_LOCAL( |
| simd2, WASM_SIMD_F32x4_FROM_U32x4(WASM_GET_LOCAL(simd0))), |
| WASM_SIMD_CHECK_SPLAT_F32x4(simd2, expected_unsigned), |
| WASM_RETURN1(WASM_ONE))); |
| |
| FOR_INT32_INPUTS(i) { |
| CHECK_EQ(1, r.Call(*i, static_cast<float>(*i), |
| static_cast<float>(static_cast<uint32_t>(*i)))); |
| } |
| } |
| |
| WASM_EXEC_TEST(S32x4Select) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, int32_t, int32_t> r(kExecuteCompiled); |
| byte val1 = 0; |
| byte val2 = 1; |
| byte mask = r.AllocateLocal(kWasmS128); |
| byte src1 = r.AllocateLocal(kWasmS128); |
| byte src2 = r.AllocateLocal(kWasmS128); |
| BUILD(r, |
| WASM_BLOCK( |
| WASM_SET_LOCAL(mask, WASM_SIMD_I32x4_SPLAT(WASM_ZERO)), |
| WASM_SET_LOCAL(src1, WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(val1))), |
| WASM_SET_LOCAL(src2, WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(val2))), |
| WASM_SET_LOCAL(mask, WASM_SIMD_I32x4_REPLACE_LANE( |
| 1, WASM_GET_LOCAL(mask), WASM_I32V(-1))), |
| WASM_SET_LOCAL(mask, WASM_SIMD_I32x4_REPLACE_LANE( |
| 2, WASM_GET_LOCAL(mask), WASM_I32V(-1))), |
| WASM_SET_LOCAL(mask, WASM_SIMD_S32x4_SELECT(WASM_GET_LOCAL(mask), |
| WASM_GET_LOCAL(src1), |
| WASM_GET_LOCAL(src2))), |
| WASM_SIMD_CHECK_LANE(I32x4, mask, I32, val2, 0), |
| WASM_SIMD_CHECK_LANE(I32x4, mask, I32, val1, 1), |
| WASM_SIMD_CHECK_LANE(I32x4, mask, I32, val1, 2), |
| WASM_SIMD_CHECK_LANE(I32x4, mask, I32, val2, 3), |
| WASM_RETURN1(WASM_ONE))); |
| |
| CHECK_EQ(1, r.Call(0x1234, 0x5678)); |
| } |
| |
| void RunF32x4UnOpTest(WasmOpcode simd_op, FloatUnOp expected_op) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, float, float> r(kExecuteCompiled); |
| byte a = 0; |
| byte expected = 1; |
| byte simd = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK( |
| WASM_SET_LOCAL(simd, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(a))), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_UNOP(simd_op & 0xffu, WASM_GET_LOCAL(simd))), |
| WASM_SIMD_CHECK_SPLAT_F32x4(simd, expected), |
| WASM_RETURN1(WASM_ONE))); |
| |
| FOR_FLOAT32_INPUTS(i) { |
| if (std::isnan(*i)) continue; |
| CHECK_EQ(1, r.Call(*i, expected_op(*i))); |
| } |
| } |
| |
| WASM_EXEC_TEST(F32x4Abs) { RunF32x4UnOpTest(kExprF32x4Abs, std::abs); } |
| WASM_EXEC_TEST(F32x4Neg) { RunF32x4UnOpTest(kExprF32x4Neg, Negate); } |
| |
| void RunF32x4BinOpTest(WasmOpcode simd_op, FloatBinOp expected_op) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, float, float, float> r(kExecuteCompiled); |
| byte a = 0; |
| byte b = 1; |
| byte expected = 2; |
| byte simd0 = r.AllocateLocal(kWasmS128); |
| byte simd1 = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK( |
| WASM_SET_LOCAL(simd0, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(a))), |
| WASM_SET_LOCAL(simd1, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(b))), |
| WASM_SET_LOCAL(simd1, WASM_SIMD_BINOP(simd_op & 0xffu, |
| WASM_GET_LOCAL(simd0), |
| WASM_GET_LOCAL(simd1))), |
| WASM_SIMD_CHECK_SPLAT_F32x4(simd1, expected), |
| WASM_RETURN1(WASM_ONE))); |
| |
| FOR_FLOAT32_INPUTS(i) { |
| FOR_FLOAT32_INPUTS(j) { |
| float expected = expected_op(*i, *j); |
| int result_type = std::fpclassify(expected); |
| // Skip arithmetic operations on NaNs or whose expected result is a NaN |
| // or denormalized. |
| // TODO(bbudge) On platforms where denormals are flushed to zero, test |
| // with expected = 0. |
| if (result_type == FP_NAN || result_type == FP_SUBNORMAL) continue; |
| CHECK_EQ(1, r.Call(*i, *j, expected)); |
| } |
| } |
| } |
| |
| WASM_EXEC_TEST(F32x4Add) { RunF32x4BinOpTest(kExprF32x4Add, Add); } |
| WASM_EXEC_TEST(F32x4Sub) { RunF32x4BinOpTest(kExprF32x4Sub, Sub); } |
| |
| void RunF32x4CompareOpTest(WasmOpcode simd_op, FloatCompareOp expected_op) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, float, float, int32_t> r(kExecuteCompiled); |
| byte a = 0; |
| byte b = 1; |
| byte expected = 2; |
| byte simd0 = r.AllocateLocal(kWasmS128); |
| byte simd1 = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK( |
| WASM_SET_LOCAL(simd0, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(a))), |
| WASM_SET_LOCAL(simd1, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(b))), |
| WASM_SET_LOCAL(simd1, WASM_SIMD_BINOP(simd_op & 0xffu, |
| WASM_GET_LOCAL(simd0), |
| WASM_GET_LOCAL(simd1))), |
| WASM_SIMD_CHECK_SPLAT4(I32x4, simd1, I32, expected), |
| WASM_RETURN1(WASM_ONE))); |
| |
| FOR_FLOAT32_INPUTS(i) { |
| FOR_FLOAT32_INPUTS(j) { |
| int diff_type = std::fpclassify(*i - *j); |
| // Skip comparisons on NaNs or pairs whose difference is a NaN. |
| // Skip comparisons on pairs whose difference is denormalized. |
| // On some platforms, SIMD instructions may flush denormals to zero. |
| if (diff_type == FP_NAN || diff_type == FP_SUBNORMAL) continue; |
| CHECK_EQ(1, r.Call(*i, *j, expected_op(*i, *j))); |
| } |
| } |
| } |
| |
| WASM_EXEC_TEST(F32x4Equal) { RunF32x4CompareOpTest(kExprF32x4Eq, Equal); } |
| WASM_EXEC_TEST(F32x4NotEqual) { RunF32x4CompareOpTest(kExprF32x4Ne, NotEqual); } |
| #endif // V8_TARGET_ARCH_ARM |
| |
| WASM_EXEC_TEST(I32x4Splat) { |
| FLAG_wasm_simd_prototype = true; |
| |
| // Store SIMD value in a local variable, use extract lane to check lane values |
| // This test is not a test for ExtractLane as Splat does not create |
| // interesting SIMD values. |
| // |
| // SetLocal(1, I32x4Splat(Local(0))); |
| // For each lane index |
| // if(Local(0) != I32x4ExtractLane(Local(1), index) |
| // return 0 |
| // |
| // return 1 |
| WasmRunner<int32_t, int32_t> r(kExecuteCompiled); |
| byte lane_val = 0; |
| byte simd = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK(WASM_SET_LOCAL(simd, WASM_SIMD_I32x4_SPLAT( |
| WASM_GET_LOCAL(lane_val))), |
| WASM_SIMD_CHECK_SPLAT4(I32x4, simd, I32, lane_val), |
| WASM_RETURN1(WASM_ONE))); |
| |
| FOR_INT32_INPUTS(i) { CHECK_EQ(1, r.Call(*i)); } |
| } |
| |
| WASM_EXEC_TEST(I32x4ReplaceLane) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, int32_t, int32_t> r(kExecuteCompiled); |
| byte old_val = 0; |
| byte new_val = 1; |
| byte simd = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK( |
| WASM_SET_LOCAL(simd, |
| WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(old_val))), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_I32x4_REPLACE_LANE(0, WASM_GET_LOCAL(simd), |
| WASM_GET_LOCAL(new_val))), |
| WASM_SIMD_CHECK4(I32x4, simd, I32, new_val, old_val, old_val, |
| old_val), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_I32x4_REPLACE_LANE(1, WASM_GET_LOCAL(simd), |
| WASM_GET_LOCAL(new_val))), |
| WASM_SIMD_CHECK4(I32x4, simd, I32, new_val, new_val, old_val, |
| old_val), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_I32x4_REPLACE_LANE(2, WASM_GET_LOCAL(simd), |
| WASM_GET_LOCAL(new_val))), |
| WASM_SIMD_CHECK4(I32x4, simd, I32, new_val, new_val, new_val, |
| old_val), |
| WASM_SET_LOCAL( |
| simd, WASM_SIMD_I32x4_REPLACE_LANE(3, WASM_GET_LOCAL(simd), |
| WASM_GET_LOCAL(new_val))), |
| WASM_SIMD_CHECK_SPLAT4(I32x4, simd, I32, new_val), |
| WASM_RETURN1(WASM_ONE))); |
| |
| CHECK_EQ(1, r.Call(1, 2)); |
| } |
| |
| #if V8_TARGET_ARCH_ARM |
| |
| // Determines if conversion from float to int will be valid. |
| bool CanRoundToZeroAndConvert(double val, bool unsigned_integer) { |
| const double max_uint = static_cast<double>(0xffffffffu); |
| const double max_int = static_cast<double>(kMaxInt); |
| const double min_int = static_cast<double>(kMinInt); |
| |
| // Check for NaN. |
| if (val != val) { |
| return false; |
| } |
| |
| // Round to zero and check for overflow. This code works because 32 bit |
| // integers can be exactly represented by ieee-754 64bit floating-point |
| // values. |
| return unsigned_integer ? (val < (max_uint + 1.0)) && (val > -1) |
| : (val < (max_int + 1.0)) && (val > (min_int - 1.0)); |
| } |
| |
| int ConvertInvalidValue(double val, bool unsigned_integer) { |
| if (val != val) { |
| return 0; |
| } else { |
| if (unsigned_integer) { |
| return (val < 0) ? 0 : 0xffffffffu; |
| } else { |
| return (val < 0) ? kMinInt : kMaxInt; |
| } |
| } |
| } |
| |
| int32_t ConvertToInt(double val, bool unsigned_integer) { |
| int32_t result = |
| unsigned_integer ? static_cast<uint32_t>(val) : static_cast<int32_t>(val); |
| |
| if (!CanRoundToZeroAndConvert(val, unsigned_integer)) { |
| result = ConvertInvalidValue(val, unsigned_integer); |
| } |
| return result; |
| } |
| |
| // Tests both signed and unsigned conversion. |
| WASM_EXEC_TEST(I32x4FromFloat32x4) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, float, int32_t, int32_t> r(kExecuteCompiled); |
| byte a = 0; |
| byte expected_signed = 1; |
| byte expected_unsigned = 2; |
| byte simd0 = r.AllocateLocal(kWasmS128); |
| byte simd1 = r.AllocateLocal(kWasmS128); |
| byte simd2 = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK( |
| WASM_SET_LOCAL(simd0, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(a))), |
| WASM_SET_LOCAL( |
| simd1, WASM_SIMD_I32x4_FROM_F32x4(WASM_GET_LOCAL(simd0))), |
| WASM_SIMD_CHECK_SPLAT4(I32x4, simd1, I32, expected_signed), |
| WASM_SET_LOCAL( |
| simd2, WASM_SIMD_U32x4_FROM_F32x4(WASM_GET_LOCAL(simd0))), |
| WASM_SIMD_CHECK_SPLAT4(I32x4, simd2, I32, expected_unsigned), |
| WASM_RETURN1(WASM_ONE))); |
| |
| FOR_FLOAT32_INPUTS(i) { |
| int32_t signed_value = ConvertToInt(*i, false); |
| int32_t unsigned_value = ConvertToInt(*i, true); |
| CHECK_EQ(1, r.Call(*i, signed_value, unsigned_value)); |
| } |
| } |
| #endif // V8_TARGET_ARCH_ARM |
| |
| void RunI32x4BinOpTest(WasmOpcode simd_op, Int32BinOp expected_op) { |
| FLAG_wasm_simd_prototype = true; |
| WasmRunner<int32_t, int32_t, int32_t, int32_t> r(kExecuteCompiled); |
| byte a = 0; |
| byte b = 1; |
| byte expected = 2; |
| byte simd0 = r.AllocateLocal(kWasmS128); |
| byte simd1 = r.AllocateLocal(kWasmS128); |
| BUILD(r, WASM_BLOCK( |
| WASM_SET_LOCAL(simd0, WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(a))), |
| WASM_SET_LOCAL(simd1, WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(b))), |
| WASM_SET_LOCAL(simd1, WASM_SIMD_BINOP(simd_op & 0xffu, |
| WASM_GET_LOCAL(simd0), |
| WASM_GET_LOCAL(simd1))), |
| WASM_SIMD_CHECK_SPLAT4(I32x4, simd1, I32, expected), |
| WASM_RETURN1(WASM_ONE))); |
| |
| FOR_INT32_INPUTS(i) { |
| FOR_INT32_INPUTS(j) { CHECK_EQ(1, r.Call(*i, *j, expected_op(*i, *j))); } |
| } |
| } |
| |
| WASM_EXEC_TEST(I32x4Add) { RunI32x4BinOpTest(kExprI32x4Add, Add); } |
| |
| WASM_EXEC_TEST(I32x4Sub) { RunI32x4BinOpTest(kExprI32x4Sub, Sub); } |
| |
| #if V8_TARGET_ARCH_ARM |
| WASM_EXEC_TEST(I32x4Equal) { RunI32x4BinOpTest(kExprI32x4Eq, Equal); } |
| |
| WASM_EXEC_TEST(I32x4NotEqual) { RunI32x4BinOpTest(kExprI32x4Ne, NotEqual); } |
| #endif // V8_TARGET_ARCH_ARM |
