0df234b0ed
Reason for revert:
F32x4Add / Sub are still failing. I'll have to investigate on ARM hardware when I get back.
Original issue's description:
> [WASM] Fix failing Wasm SIMD F32x4 tests.
> - Perform lane checks using FP compare instead of reinterpret casts. 0 and -0
> will be different under I32 compare.
> - Some arithmetic operations can generate NaN results, such as adding -Inf
> and +Inf. Skip these tests until we have a way to do more sophisticated
> FP comparisons in the SIMD tests.
> - Eliminate a redundant F32x4 parameter for FP SIMD vector checking. We will only have this one FP type.
>
> LOG=N
> BUG=v8:4124
>
> Review-Url: https://codereview.chromium.org/2594043002
> Cr-Commit-Position: refs/heads/master@{#42154}
> Committed: 5560bbb498
TBR=titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124
Review-Url: https://codereview.chromium.org/2624713002
Cr-Commit-Position: refs/heads/master@{#42162}
443 lines
17 KiB
C++
443 lines
17 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/wasm/wasm-macro-gen.h"
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#include "test/cctest/cctest.h"
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#include "test/cctest/compiler/value-helper.h"
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#include "test/cctest/wasm/wasm-run-utils.h"
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using namespace v8::base;
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using namespace v8::internal;
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using namespace v8::internal::compiler;
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using namespace v8::internal::wasm;
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namespace {
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typedef float (*FloatUnOp)(float);
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typedef float (*FloatBinOp)(float, float);
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typedef int32_t (*FloatCompareOp)(float, float);
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typedef int32_t (*Int32BinOp)(int32_t, int32_t);
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template <typename T>
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T Negate(T a) {
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return -a;
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}
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template <typename T>
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T Add(T a, T b) {
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return a + b;
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}
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template <typename T>
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T Sub(T a, T b) {
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return a - b;
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}
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template <typename T>
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int32_t Equal(T a, T b) {
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return a == b ? 0xFFFFFFFF : 0;
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}
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template <typename T>
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int32_t NotEqual(T a, T b) {
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return a != b ? 0xFFFFFFFF : 0;
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}
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#if V8_TARGET_ARCH_ARM
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int32_t Equal(float a, float b) { return a == b ? 0xFFFFFFFF : 0; }
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int32_t NotEqual(float a, float b) { return a != b ? 0xFFFFFFFF : 0; }
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#endif // V8_TARGET_ARCH_ARM
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} // namespace
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// TODO(gdeepti): These are tests using sample values to verify functional
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// correctness of opcodes, add more tests for a range of values and macroize
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// tests.
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// TODO(bbudge) Figure out how to compare floats in Wasm code that can handle
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// NaNs. For now, our tests avoid using NaNs.
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#define WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lane_value, lane_index) \
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WASM_IF(WASM_##LANE_TYPE##_NE(WASM_GET_LOCAL(lane_value), \
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WASM_SIMD_##TYPE##_EXTRACT_LANE( \
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lane_index, WASM_GET_LOCAL(value))), \
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WASM_RETURN1(WASM_ZERO))
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#define WASM_SIMD_CHECK4(TYPE, value, LANE_TYPE, lv0, lv1, lv2, lv3) \
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WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv0, 0) \
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, WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv1, 1), \
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WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv2, 2), \
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WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv3, 3)
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#define WASM_SIMD_CHECK_SPLAT4(TYPE, value, LANE_TYPE, lv) \
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WASM_SIMD_CHECK4(TYPE, value, LANE_TYPE, lv, lv, lv, lv)
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#define WASM_SIMD_CHECK_F32_LANE(TYPE, value, lane_value, lane_index) \
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WASM_IF( \
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WASM_I32_NE(WASM_I32_REINTERPRET_F32(WASM_GET_LOCAL(lane_value)), \
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WASM_I32_REINTERPRET_F32(WASM_SIMD_##TYPE##_EXTRACT_LANE( \
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lane_index, WASM_GET_LOCAL(value)))), \
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WASM_RETURN1(WASM_ZERO))
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#define WASM_SIMD_CHECK4_F32(TYPE, value, lv0, lv1, lv2, lv3) \
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WASM_SIMD_CHECK_F32_LANE(TYPE, value, lv0, 0) \
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, WASM_SIMD_CHECK_F32_LANE(TYPE, value, lv1, 1), \
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WASM_SIMD_CHECK_F32_LANE(TYPE, value, lv2, 2), \
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WASM_SIMD_CHECK_F32_LANE(TYPE, value, lv3, 3)
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#define WASM_SIMD_CHECK_SPLAT4_F32(TYPE, value, lv) \
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WASM_SIMD_CHECK4_F32(TYPE, value, lv, lv, lv, lv)
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#if V8_TARGET_ARCH_ARM
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WASM_EXEC_TEST(F32x4Splat) {
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FLAG_wasm_simd_prototype = true;
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WasmRunner<int32_t, float> r(kExecuteCompiled);
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byte lane_val = 0;
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byte simd = r.AllocateLocal(kWasmS128);
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BUILD(r, WASM_BLOCK(WASM_SET_LOCAL(simd, WASM_SIMD_F32x4_SPLAT(
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WASM_GET_LOCAL(lane_val))),
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WASM_SIMD_CHECK_SPLAT4_F32(F32x4, simd, lane_val),
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WASM_RETURN1(WASM_ONE)));
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FOR_FLOAT32_INPUTS(i) { CHECK_EQ(1, r.Call(*i)); }
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}
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WASM_EXEC_TEST(F32x4ReplaceLane) {
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FLAG_wasm_simd_prototype = true;
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WasmRunner<int32_t, float, float> r(kExecuteCompiled);
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byte old_val = 0;
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byte new_val = 1;
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byte simd = r.AllocateLocal(kWasmS128);
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BUILD(r, WASM_BLOCK(
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WASM_SET_LOCAL(simd,
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WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(old_val))),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_F32x4_REPLACE_LANE(0, WASM_GET_LOCAL(simd),
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WASM_GET_LOCAL(new_val))),
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WASM_SIMD_CHECK4(F32x4, simd, F32, new_val, old_val, old_val,
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old_val),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_F32x4_REPLACE_LANE(1, WASM_GET_LOCAL(simd),
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WASM_GET_LOCAL(new_val))),
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WASM_SIMD_CHECK4(F32x4, simd, F32, new_val, new_val, old_val,
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old_val),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_F32x4_REPLACE_LANE(2, WASM_GET_LOCAL(simd),
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WASM_GET_LOCAL(new_val))),
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WASM_SIMD_CHECK4(F32x4, simd, F32, new_val, new_val, new_val,
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old_val),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_F32x4_REPLACE_LANE(3, WASM_GET_LOCAL(simd),
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WASM_GET_LOCAL(new_val))),
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WASM_SIMD_CHECK_SPLAT4(F32x4, simd, F32, new_val),
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WASM_RETURN1(WASM_ONE)));
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CHECK_EQ(1, r.Call(3.14159, -1.5));
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}
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// Tests both signed and unsigned conversion.
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WASM_EXEC_TEST(F32x4FromInt32x4) {
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FLAG_wasm_simd_prototype = true;
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WasmRunner<int32_t, int32_t, float, float> r(kExecuteCompiled);
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byte a = 0;
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byte expected_signed = 1;
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byte expected_unsigned = 2;
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byte simd0 = r.AllocateLocal(kWasmS128);
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byte simd1 = r.AllocateLocal(kWasmS128);
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byte simd2 = r.AllocateLocal(kWasmS128);
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BUILD(r, WASM_BLOCK(
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WASM_SET_LOCAL(simd0, WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(a))),
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WASM_SET_LOCAL(
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simd1, WASM_SIMD_F32x4_FROM_I32x4(WASM_GET_LOCAL(simd0))),
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WASM_SIMD_CHECK_SPLAT4_F32(F32x4, simd1, expected_signed),
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WASM_SET_LOCAL(
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simd2, WASM_SIMD_F32x4_FROM_U32x4(WASM_GET_LOCAL(simd0))),
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WASM_SIMD_CHECK_SPLAT4_F32(F32x4, simd2, expected_unsigned),
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WASM_RETURN1(WASM_ONE)));
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FOR_INT32_INPUTS(i) {
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CHECK_EQ(1, r.Call(*i, static_cast<float>(*i),
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static_cast<float>(static_cast<uint32_t>(*i))));
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}
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}
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WASM_EXEC_TEST(S32x4Select) {
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FLAG_wasm_simd_prototype = true;
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WasmRunner<int32_t, int32_t, int32_t> r(kExecuteCompiled);
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byte val1 = 0;
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byte val2 = 1;
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byte mask = r.AllocateLocal(kWasmS128);
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byte src1 = r.AllocateLocal(kWasmS128);
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byte src2 = r.AllocateLocal(kWasmS128);
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BUILD(r,
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WASM_BLOCK(
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WASM_SET_LOCAL(mask, WASM_SIMD_I32x4_SPLAT(WASM_ZERO)),
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WASM_SET_LOCAL(src1, WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(val1))),
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WASM_SET_LOCAL(src2, WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(val2))),
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WASM_SET_LOCAL(mask, WASM_SIMD_I32x4_REPLACE_LANE(
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1, WASM_GET_LOCAL(mask), WASM_I32V(-1))),
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WASM_SET_LOCAL(mask, WASM_SIMD_I32x4_REPLACE_LANE(
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2, WASM_GET_LOCAL(mask), WASM_I32V(-1))),
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WASM_SET_LOCAL(mask, WASM_SIMD_S32x4_SELECT(WASM_GET_LOCAL(mask),
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WASM_GET_LOCAL(src1),
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WASM_GET_LOCAL(src2))),
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WASM_SIMD_CHECK_LANE(I32x4, mask, I32, val2, 0),
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WASM_SIMD_CHECK_LANE(I32x4, mask, I32, val1, 1),
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WASM_SIMD_CHECK_LANE(I32x4, mask, I32, val1, 2),
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WASM_SIMD_CHECK_LANE(I32x4, mask, I32, val2, 3),
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WASM_RETURN1(WASM_ONE)));
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CHECK_EQ(1, r.Call(0x1234, 0x5678));
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}
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void RunF32x4UnOpTest(WasmOpcode simd_op, FloatUnOp expected_op) {
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FLAG_wasm_simd_prototype = true;
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WasmRunner<int32_t, float, float> r(kExecuteCompiled);
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byte a = 0;
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byte expected = 1;
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byte simd = r.AllocateLocal(kWasmS128);
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BUILD(r, WASM_BLOCK(
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WASM_SET_LOCAL(simd, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(a))),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_UNOP(simd_op & 0xffu, WASM_GET_LOCAL(simd))),
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WASM_SIMD_CHECK_SPLAT4_F32(F32x4, simd, expected),
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WASM_RETURN1(WASM_ONE)));
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FOR_FLOAT32_INPUTS(i) {
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if (std::isnan(*i)) continue;
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CHECK_EQ(1, r.Call(*i, expected_op(*i)));
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}
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}
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WASM_EXEC_TEST(F32x4Abs) { RunF32x4UnOpTest(kExprF32x4Abs, std::abs); }
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WASM_EXEC_TEST(F32x4Neg) { RunF32x4UnOpTest(kExprF32x4Neg, Negate); }
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void RunF32x4BinOpTest(WasmOpcode simd_op, FloatBinOp expected_op) {
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FLAG_wasm_simd_prototype = true;
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WasmRunner<int32_t, float, float, float> r(kExecuteCompiled);
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byte a = 0;
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byte b = 1;
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byte expected = 2;
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byte simd0 = r.AllocateLocal(kWasmS128);
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byte simd1 = r.AllocateLocal(kWasmS128);
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BUILD(r, WASM_BLOCK(
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WASM_SET_LOCAL(simd0, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(a))),
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WASM_SET_LOCAL(simd1, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(b))),
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WASM_SET_LOCAL(simd1, WASM_SIMD_BINOP(simd_op & 0xffu,
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WASM_GET_LOCAL(simd0),
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WASM_GET_LOCAL(simd1))),
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WASM_SIMD_CHECK_SPLAT4_F32(F32x4, simd1, expected),
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WASM_RETURN1(WASM_ONE)));
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FOR_FLOAT32_INPUTS(i) {
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if (std::isnan(*i)) continue;
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FOR_FLOAT32_INPUTS(j) {
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if (std::isnan(*j)) continue;
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float expected = expected_op(*i, *j);
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// SIMD on some platforms may handle denormalized numbers differently.
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// TODO(bbudge) On platforms that flush denorms to zero, test with
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// expected == 0.
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if (std::fpclassify(expected) == FP_SUBNORMAL) continue;
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CHECK_EQ(1, r.Call(*i, *j, expected));
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}
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}
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}
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WASM_EXEC_TEST(F32x4Add) { RunF32x4BinOpTest(kExprF32x4Add, Add); }
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WASM_EXEC_TEST(F32x4Sub) { RunF32x4BinOpTest(kExprF32x4Sub, Sub); }
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void RunF32x4CompareOpTest(WasmOpcode simd_op, FloatCompareOp expected_op) {
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FLAG_wasm_simd_prototype = true;
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WasmRunner<int32_t, float, float, int32_t> r(kExecuteCompiled);
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byte a = 0;
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byte b = 1;
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byte expected = 2;
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byte simd0 = r.AllocateLocal(kWasmS128);
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byte simd1 = r.AllocateLocal(kWasmS128);
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BUILD(r, WASM_BLOCK(
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WASM_SET_LOCAL(simd0, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(a))),
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WASM_SET_LOCAL(simd1, WASM_SIMD_F32x4_SPLAT(WASM_GET_LOCAL(b))),
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WASM_SET_LOCAL(simd1, WASM_SIMD_BINOP(simd_op & 0xffu,
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WASM_GET_LOCAL(simd0),
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WASM_GET_LOCAL(simd1))),
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WASM_SIMD_CHECK_SPLAT4(I32x4, simd1, I32, expected),
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WASM_RETURN1(WASM_ONE)));
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FOR_FLOAT32_INPUTS(i) {
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if (std::isnan(*i)) continue;
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FOR_FLOAT32_INPUTS(j) {
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if (std::isnan(*j)) continue;
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// SIMD on some platforms may handle denormalized numbers differently.
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// Check for number pairs that are very close together.
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if (std::fpclassify(*i - *j) == FP_SUBNORMAL) continue;
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CHECK_EQ(1, r.Call(*i, *j, expected_op(*i, *j)));
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}
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}
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}
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WASM_EXEC_TEST(F32x4Equal) { RunF32x4CompareOpTest(kExprF32x4Eq, Equal); }
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WASM_EXEC_TEST(F32x4NotEqual) { RunF32x4CompareOpTest(kExprF32x4Ne, NotEqual); }
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#endif // V8_TARGET_ARCH_ARM
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WASM_EXEC_TEST(I32x4Splat) {
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FLAG_wasm_simd_prototype = true;
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// Store SIMD value in a local variable, use extract lane to check lane values
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// This test is not a test for ExtractLane as Splat does not create
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// interesting SIMD values.
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//
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// SetLocal(1, I32x4Splat(Local(0)));
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// For each lane index
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// if(Local(0) != I32x4ExtractLane(Local(1), index)
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// return 0
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//
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// return 1
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WasmRunner<int32_t, int32_t> r(kExecuteCompiled);
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byte lane_val = 0;
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byte simd = r.AllocateLocal(kWasmS128);
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BUILD(r, WASM_BLOCK(WASM_SET_LOCAL(simd, WASM_SIMD_I32x4_SPLAT(
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WASM_GET_LOCAL(lane_val))),
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WASM_SIMD_CHECK_SPLAT4(I32x4, simd, I32, lane_val),
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WASM_RETURN1(WASM_ONE)));
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FOR_INT32_INPUTS(i) { CHECK_EQ(1, r.Call(*i)); }
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}
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WASM_EXEC_TEST(I32x4ReplaceLane) {
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FLAG_wasm_simd_prototype = true;
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WasmRunner<int32_t, int32_t, int32_t> r(kExecuteCompiled);
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byte old_val = 0;
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byte new_val = 1;
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byte simd = r.AllocateLocal(kWasmS128);
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BUILD(r, WASM_BLOCK(
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WASM_SET_LOCAL(simd,
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WASM_SIMD_I32x4_SPLAT(WASM_GET_LOCAL(old_val))),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_I32x4_REPLACE_LANE(0, WASM_GET_LOCAL(simd),
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WASM_GET_LOCAL(new_val))),
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WASM_SIMD_CHECK4(I32x4, simd, I32, new_val, old_val, old_val,
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old_val),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_I32x4_REPLACE_LANE(1, WASM_GET_LOCAL(simd),
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WASM_GET_LOCAL(new_val))),
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WASM_SIMD_CHECK4(I32x4, simd, I32, new_val, new_val, old_val,
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old_val),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_I32x4_REPLACE_LANE(2, WASM_GET_LOCAL(simd),
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WASM_GET_LOCAL(new_val))),
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WASM_SIMD_CHECK4(I32x4, simd, I32, new_val, new_val, new_val,
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old_val),
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WASM_SET_LOCAL(
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simd, WASM_SIMD_I32x4_REPLACE_LANE(3, WASM_GET_LOCAL(simd),
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WASM_GET_LOCAL(new_val))),
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WASM_SIMD_CHECK_SPLAT4(I32x4, simd, I32, new_val),
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WASM_RETURN1(WASM_ONE)));
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CHECK_EQ(1, r.Call(1, 2));
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}
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#if V8_TARGET_ARCH_ARM
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// Determines if conversion from float to int will be valid.
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bool CanRoundToZeroAndConvert(double val, bool unsigned_integer) {
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const double max_uint = static_cast<double>(0xffffffffu);
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const double max_int = static_cast<double>(kMaxInt);
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const double min_int = static_cast<double>(kMinInt);
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// Check for NaN.
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if (val != val) {
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return false;
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}
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// Round to zero and check for overflow. This code works because 32 bit
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// integers can be exactly represented by ieee-754 64bit floating-point
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// values.
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return unsigned_integer ? (val < (max_uint + 1.0)) && (val > -1)
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: (val < (max_int + 1.0)) && (val > (min_int - 1.0));
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}
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int ConvertInvalidValue(double val, bool unsigned_integer) {
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if (val != val) {
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return 0;
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} else {
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if (unsigned_integer) {
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return (val < 0) ? 0 : 0xffffffffu;
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} else {
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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
|