317dc0578f
Perform the following transformation:
| Before | After |
|------------------+---------------------|
| add w2, w0, w1 | adds w2, w0, w1 |
| cmp w2, #0x0 | b.<cond'> <addr> |
| b.<cond> <addr> | |
|------------------+---------------------|
| add w2, w0, w1 | adds w2, w0, w1 |
| cmp #0x0, w2 | b.<cond'> <addr> |
| b.<cond> <addr> | |
and the same for and instructions instead of add. When the result of the
add/and is not used, generate cmn/tst instead. We need to take care with which
conditions we can handle and what new condition we map them to.
BUG=
Review-Url: https://codereview.chromium.org/2065243005
Cr-Commit-Position: refs/heads/master@{#37400}
932 lines
27 KiB
C++
932 lines
27 KiB
C++
// Copyright 2014 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 "test/cctest/cctest.h"
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#include "test/cctest/compiler/codegen-tester.h"
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#include "test/cctest/compiler/value-helper.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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static IrOpcode::Value int32cmp_opcodes[] = {
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IrOpcode::kWord32Equal, IrOpcode::kInt32LessThan,
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IrOpcode::kInt32LessThanOrEqual, IrOpcode::kUint32LessThan,
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IrOpcode::kUint32LessThanOrEqual};
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TEST(BranchCombineWord32EqualZero_1) {
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// Test combining a branch with x == 0
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32());
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int32_t eq_constant = -1033;
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int32_t ne_constant = 825118;
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Node* p0 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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m.Branch(m.Word32Equal(p0, m.Int32Constant(0)), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(i) {
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int32_t a = *i;
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int32_t expect = a == 0 ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(a));
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}
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}
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TEST(BranchCombineWord32EqualZero_chain) {
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// Test combining a branch with a chain of x == 0 == 0 == 0 ...
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int32_t eq_constant = -1133;
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int32_t ne_constant = 815118;
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for (int k = 0; k < 6; k++) {
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32());
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Node* p0 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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Node* cond = p0;
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for (int j = 0; j < k; j++) {
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cond = m.Word32Equal(cond, m.Int32Constant(0));
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}
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m.Branch(cond, &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(i) {
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int32_t a = *i;
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int32_t expect = (k & 1) == 1 ? (a == 0 ? eq_constant : ne_constant)
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: (a == 0 ? ne_constant : eq_constant);
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CHECK_EQ(expect, m.Call(a));
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}
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}
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}
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TEST(BranchCombineInt32LessThanZero_1) {
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// Test combining a branch with x < 0
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32());
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int32_t eq_constant = -1433;
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int32_t ne_constant = 845118;
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Node* p0 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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m.Branch(m.Int32LessThan(p0, m.Int32Constant(0)), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(i) {
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int32_t a = *i;
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int32_t expect = a < 0 ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(a));
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}
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}
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TEST(BranchCombineUint32LessThan100_1) {
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// Test combining a branch with x < 100
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RawMachineAssemblerTester<int32_t> m(MachineType::Uint32());
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int32_t eq_constant = 1471;
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int32_t ne_constant = 88845718;
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Node* p0 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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m.Branch(m.Uint32LessThan(p0, m.Int32Constant(100)), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_UINT32_INPUTS(i) {
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uint32_t a = *i;
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int32_t expect = a < 100 ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(a));
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}
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}
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TEST(BranchCombineUint32LessThanOrEqual100_1) {
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// Test combining a branch with x <= 100
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RawMachineAssemblerTester<int32_t> m(MachineType::Uint32());
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int32_t eq_constant = 1479;
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int32_t ne_constant = 77845719;
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Node* p0 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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m.Branch(m.Uint32LessThanOrEqual(p0, m.Int32Constant(100)), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_UINT32_INPUTS(i) {
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uint32_t a = *i;
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int32_t expect = a <= 100 ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(a));
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}
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}
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TEST(BranchCombineZeroLessThanInt32_1) {
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// Test combining a branch with 0 < x
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32());
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int32_t eq_constant = -2033;
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int32_t ne_constant = 225118;
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Node* p0 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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m.Branch(m.Int32LessThan(m.Int32Constant(0), p0), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(i) {
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int32_t a = *i;
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int32_t expect = 0 < a ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(a));
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}
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}
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TEST(BranchCombineInt32GreaterThanZero_1) {
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// Test combining a branch with x > 0
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32());
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int32_t eq_constant = -1073;
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int32_t ne_constant = 825178;
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Node* p0 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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m.Branch(m.Int32GreaterThan(p0, m.Int32Constant(0)), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(i) {
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int32_t a = *i;
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int32_t expect = a > 0 ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(a));
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}
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}
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TEST(BranchCombineWord32EqualP) {
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// Test combining a branch with an Word32Equal.
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
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MachineType::Int32());
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int32_t eq_constant = -1035;
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int32_t ne_constant = 825018;
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Node* p0 = m.Parameter(0);
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Node* p1 = m.Parameter(1);
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RawMachineLabel blocka, blockb;
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m.Branch(m.Word32Equal(p0, p1), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(i) {
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FOR_INT32_INPUTS(j) {
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int32_t a = *i;
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int32_t b = *j;
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int32_t expect = a == b ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(a, b));
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}
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}
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}
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TEST(BranchCombineWord32EqualI) {
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int32_t eq_constant = -1135;
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int32_t ne_constant = 925718;
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for (int left = 0; left < 2; left++) {
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FOR_INT32_INPUTS(i) {
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32());
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int32_t a = *i;
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Node* p0 = m.Int32Constant(a);
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Node* p1 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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if (left == 1) m.Branch(m.Word32Equal(p0, p1), &blocka, &blockb);
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if (left == 0) m.Branch(m.Word32Equal(p1, p0), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(j) {
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int32_t b = *j;
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int32_t expect = a == b ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(b));
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}
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}
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}
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}
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TEST(BranchCombineInt32CmpP) {
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int32_t eq_constant = -1235;
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int32_t ne_constant = 725018;
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for (int op = 0; op < 2; op++) {
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
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MachineType::Int32());
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Node* p0 = m.Parameter(0);
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Node* p1 = m.Parameter(1);
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RawMachineLabel blocka, blockb;
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if (op == 0) m.Branch(m.Int32LessThan(p0, p1), &blocka, &blockb);
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if (op == 1) m.Branch(m.Int32LessThanOrEqual(p0, p1), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(i) {
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FOR_INT32_INPUTS(j) {
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int32_t a = *i;
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int32_t b = *j;
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int32_t expect = 0;
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if (op == 0) expect = a < b ? eq_constant : ne_constant;
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if (op == 1) expect = a <= b ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(a, b));
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}
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}
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}
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}
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TEST(BranchCombineInt32CmpI) {
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int32_t eq_constant = -1175;
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int32_t ne_constant = 927711;
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for (int op = 0; op < 2; op++) {
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FOR_INT32_INPUTS(i) {
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RawMachineAssemblerTester<int32_t> m(MachineType::Int32());
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int32_t a = *i;
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Node* p0 = m.Int32Constant(a);
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Node* p1 = m.Parameter(0);
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RawMachineLabel blocka, blockb;
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if (op == 0) m.Branch(m.Int32LessThan(p0, p1), &blocka, &blockb);
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if (op == 1) m.Branch(m.Int32LessThanOrEqual(p0, p1), &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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FOR_INT32_INPUTS(j) {
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int32_t b = *j;
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int32_t expect = 0;
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if (op == 0) expect = a < b ? eq_constant : ne_constant;
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if (op == 1) expect = a <= b ? eq_constant : ne_constant;
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CHECK_EQ(expect, m.Call(b));
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}
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}
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}
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}
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// Now come the sophisticated tests for many input shape combinations.
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// Materializes a boolean (1 or 0) from a comparison.
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class CmpMaterializeBoolGen : public BinopGen<int32_t> {
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public:
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CompareWrapper w;
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bool invert;
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CmpMaterializeBoolGen(IrOpcode::Value opcode, bool i)
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: w(opcode), invert(i) {}
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virtual void gen(RawMachineAssemblerTester<int32_t>* m, Node* a, Node* b) {
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Node* cond = w.MakeNode(m, a, b);
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if (invert) cond = m->Word32Equal(cond, m->Int32Constant(0));
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m->Return(cond);
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}
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virtual int32_t expected(int32_t a, int32_t b) {
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if (invert) return !w.Int32Compare(a, b) ? 1 : 0;
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return w.Int32Compare(a, b) ? 1 : 0;
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}
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};
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// Generates a branch and return one of two values from a comparison.
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class CmpBranchGen : public BinopGen<int32_t> {
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public:
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CompareWrapper w;
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bool invert;
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bool true_first;
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int32_t eq_constant;
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int32_t ne_constant;
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CmpBranchGen(IrOpcode::Value opcode, bool i, bool t, int32_t eq, int32_t ne)
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: w(opcode), invert(i), true_first(t), eq_constant(eq), ne_constant(ne) {}
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virtual void gen(RawMachineAssemblerTester<int32_t>* m, Node* a, Node* b) {
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RawMachineLabel blocka, blockb;
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Node* cond = w.MakeNode(m, a, b);
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if (invert) cond = m->Word32Equal(cond, m->Int32Constant(0));
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m->Branch(cond, &blocka, &blockb);
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if (true_first) {
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m->Bind(&blocka);
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m->Return(m->Int32Constant(eq_constant));
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m->Bind(&blockb);
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m->Return(m->Int32Constant(ne_constant));
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} else {
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m->Bind(&blockb);
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m->Return(m->Int32Constant(ne_constant));
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m->Bind(&blocka);
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m->Return(m->Int32Constant(eq_constant));
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}
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}
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virtual int32_t expected(int32_t a, int32_t b) {
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if (invert) return !w.Int32Compare(a, b) ? eq_constant : ne_constant;
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return w.Int32Compare(a, b) ? eq_constant : ne_constant;
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}
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};
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TEST(BranchCombineInt32CmpAllInputShapes_materialized) {
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for (size_t i = 0; i < arraysize(int32cmp_opcodes); i++) {
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CmpMaterializeBoolGen gen(int32cmp_opcodes[i], false);
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Int32BinopInputShapeTester tester(&gen);
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tester.TestAllInputShapes();
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}
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}
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TEST(BranchCombineInt32CmpAllInputShapes_inverted_materialized) {
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for (size_t i = 0; i < arraysize(int32cmp_opcodes); i++) {
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CmpMaterializeBoolGen gen(int32cmp_opcodes[i], true);
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Int32BinopInputShapeTester tester(&gen);
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tester.TestAllInputShapes();
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}
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}
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TEST(BranchCombineInt32CmpAllInputShapes_branch_true) {
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for (int i = 0; i < static_cast<int>(arraysize(int32cmp_opcodes)); i++) {
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CmpBranchGen gen(int32cmp_opcodes[i], false, false, 995 + i, -1011 - i);
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Int32BinopInputShapeTester tester(&gen);
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tester.TestAllInputShapes();
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}
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}
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TEST(BranchCombineInt32CmpAllInputShapes_branch_false) {
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for (int i = 0; i < static_cast<int>(arraysize(int32cmp_opcodes)); i++) {
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CmpBranchGen gen(int32cmp_opcodes[i], false, true, 795 + i, -2011 - i);
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Int32BinopInputShapeTester tester(&gen);
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tester.TestAllInputShapes();
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}
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}
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TEST(BranchCombineInt32CmpAllInputShapes_inverse_branch_true) {
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for (int i = 0; i < static_cast<int>(arraysize(int32cmp_opcodes)); i++) {
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CmpBranchGen gen(int32cmp_opcodes[i], true, false, 695 + i, -3011 - i);
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Int32BinopInputShapeTester tester(&gen);
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tester.TestAllInputShapes();
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}
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}
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TEST(BranchCombineInt32CmpAllInputShapes_inverse_branch_false) {
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for (int i = 0; i < static_cast<int>(arraysize(int32cmp_opcodes)); i++) {
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CmpBranchGen gen(int32cmp_opcodes[i], true, true, 595 + i, -4011 - i);
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Int32BinopInputShapeTester tester(&gen);
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tester.TestAllInputShapes();
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}
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}
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TEST(BranchCombineFloat64Compares) {
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double inf = V8_INFINITY;
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double nan = std::numeric_limits<double>::quiet_NaN();
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double inputs[] = {0.0, 1.0, -1.0, -inf, inf, nan};
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int32_t eq_constant = -1733;
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int32_t ne_constant = 915118;
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double input_a = 0.0;
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double input_b = 0.0;
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CompareWrapper cmps[] = {CompareWrapper(IrOpcode::kFloat64Equal),
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CompareWrapper(IrOpcode::kFloat64LessThan),
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CompareWrapper(IrOpcode::kFloat64LessThanOrEqual)};
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for (size_t c = 0; c < arraysize(cmps); c++) {
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CompareWrapper cmp = cmps[c];
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for (int invert = 0; invert < 2; invert++) {
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RawMachineAssemblerTester<int32_t> m;
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Node* a = m.LoadFromPointer(&input_a, MachineType::Float64());
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Node* b = m.LoadFromPointer(&input_b, MachineType::Float64());
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RawMachineLabel blocka, blockb;
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Node* cond = cmp.MakeNode(&m, a, b);
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if (invert) cond = m.Word32Equal(cond, m.Int32Constant(0));
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m.Branch(cond, &blocka, &blockb);
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m.Bind(&blocka);
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m.Return(m.Int32Constant(eq_constant));
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m.Bind(&blockb);
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m.Return(m.Int32Constant(ne_constant));
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for (size_t i = 0; i < arraysize(inputs); ++i) {
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for (size_t j = 0; j < arraysize(inputs); ++j) {
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input_a = inputs[i];
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input_b = inputs[j];
|
|
int32_t expected =
|
|
invert ? (cmp.Float64Compare(input_a, input_b) ? ne_constant
|
|
: eq_constant)
|
|
: (cmp.Float64Compare(input_a, input_b) ? eq_constant
|
|
: ne_constant);
|
|
CHECK_EQ(expected, m.Call());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineEffectLevel) {
|
|
// Test that the load doesn't get folded into the branch, as there's a store
|
|
// between them. See http://crbug.com/611976.
|
|
int32_t input = 0;
|
|
|
|
RawMachineAssemblerTester<int32_t> m;
|
|
Node* a = m.LoadFromPointer(&input, MachineType::Int32());
|
|
Node* compare = m.Word32And(a, m.Int32Constant(1));
|
|
Node* equal = m.Word32Equal(compare, m.Int32Constant(0));
|
|
m.StoreToPointer(&input, MachineRepresentation::kWord32, m.Int32Constant(1));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(equal, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(42));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(0));
|
|
|
|
CHECK_EQ(42, m.Call());
|
|
}
|
|
|
|
TEST(BranchCombineInt32AddLessThanZero) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
|
|
MachineType::Int32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Int32Add(a, b);
|
|
Node* compare = m.Int32LessThan(add, m.Int32Constant(0));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
int32_t a = *i;
|
|
int32_t b = *j;
|
|
int32_t expect = (a + b < 0) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineInt32AddGreaterThanOrEqualZero) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
|
|
MachineType::Int32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Int32Add(a, b);
|
|
Node* compare = m.Int32GreaterThanOrEqual(add, m.Int32Constant(0));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
int32_t a = *i;
|
|
int32_t b = *j;
|
|
int32_t expect = (a + b >= 0) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineInt32ZeroGreaterThanAdd) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
|
|
MachineType::Int32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Int32Add(a, b);
|
|
Node* compare = m.Int32GreaterThan(m.Int32Constant(0), add);
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
int32_t a = *i;
|
|
int32_t b = *j;
|
|
int32_t expect = (0 > a + b) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineInt32ZeroLessThanOrEqualAdd) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
|
|
MachineType::Int32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Int32Add(a, b);
|
|
Node* compare = m.Int32LessThanOrEqual(m.Int32Constant(0), add);
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
int32_t a = *i;
|
|
int32_t b = *j;
|
|
int32_t expect = (0 <= a + b) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineUint32AddLessThanOrEqualZero) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Uint32(),
|
|
MachineType::Uint32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Int32Add(a, b);
|
|
Node* compare = m.Uint32LessThanOrEqual(add, m.Int32Constant(0));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
uint32_t a = *i;
|
|
uint32_t b = *j;
|
|
int32_t expect = (a + b <= 0) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineUint32AddGreaterThanZero) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Uint32(),
|
|
MachineType::Uint32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Int32Add(a, b);
|
|
Node* compare = m.Uint32GreaterThan(add, m.Int32Constant(0));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
uint32_t a = *i;
|
|
uint32_t b = *j;
|
|
int32_t expect = (a + b > 0) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineUint32ZeroGreaterThanOrEqualAdd) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Uint32(),
|
|
MachineType::Uint32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Int32Add(a, b);
|
|
Node* compare = m.Uint32GreaterThanOrEqual(m.Int32Constant(0), add);
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
uint32_t a = *i;
|
|
uint32_t b = *j;
|
|
int32_t expect = (0 >= a + b) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineUint32ZeroLessThanAdd) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Uint32(),
|
|
MachineType::Uint32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Int32Add(a, b);
|
|
Node* compare = m.Uint32LessThan(m.Int32Constant(0), add);
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
uint32_t a = *i;
|
|
uint32_t b = *j;
|
|
int32_t expect = (0 < a + b) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineWord32AndLessThanZero) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
|
|
MachineType::Int32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Word32And(a, b);
|
|
Node* compare = m.Int32LessThan(add, m.Int32Constant(0));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
int32_t a = *i;
|
|
int32_t b = *j;
|
|
int32_t expect = ((a & b) < 0) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineWord32AndGreaterThanOrEqualZero) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
|
|
MachineType::Int32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Word32And(a, b);
|
|
Node* compare = m.Int32GreaterThanOrEqual(add, m.Int32Constant(0));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
int32_t a = *i;
|
|
int32_t b = *j;
|
|
int32_t expect = ((a & b) >= 0) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineInt32ZeroGreaterThanAnd) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
|
|
MachineType::Int32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Word32And(a, b);
|
|
Node* compare = m.Int32GreaterThan(m.Int32Constant(0), add);
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
int32_t a = *i;
|
|
int32_t b = *j;
|
|
int32_t expect = (0 > (a & b)) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineInt32ZeroLessThanOrEqualAnd) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
|
|
MachineType::Int32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Word32And(a, b);
|
|
Node* compare = m.Int32LessThanOrEqual(m.Int32Constant(0), add);
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
int32_t a = *i;
|
|
int32_t b = *j;
|
|
int32_t expect = (0 <= (a & b)) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineUint32AndLessThanOrEqualZero) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Uint32(),
|
|
MachineType::Uint32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Word32And(a, b);
|
|
Node* compare = m.Uint32LessThanOrEqual(add, m.Int32Constant(0));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
uint32_t a = *i;
|
|
uint32_t b = *j;
|
|
int32_t expect = ((a & b) <= 0) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineUint32AndGreaterThanZero) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Uint32(),
|
|
MachineType::Uint32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Word32And(a, b);
|
|
Node* compare = m.Uint32GreaterThan(add, m.Int32Constant(0));
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
uint32_t a = *i;
|
|
uint32_t b = *j;
|
|
int32_t expect = ((a & b) > 0) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineUint32ZeroGreaterThanOrEqualAnd) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Uint32(),
|
|
MachineType::Uint32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Word32And(a, b);
|
|
Node* compare = m.Uint32GreaterThanOrEqual(m.Int32Constant(0), add);
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
uint32_t a = *i;
|
|
uint32_t b = *j;
|
|
int32_t expect = (0 >= (a & b)) ? t_constant : f_constant;
|
|
CHECK_EQ(expect, m.Call(a, b));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(BranchCombineUint32ZeroLessThanAnd) {
|
|
int32_t t_constant = -1033;
|
|
int32_t f_constant = 825118;
|
|
|
|
RawMachineAssemblerTester<int32_t> m(MachineType::Uint32(),
|
|
MachineType::Uint32());
|
|
Node* a = m.Parameter(0);
|
|
Node* b = m.Parameter(1);
|
|
Node* add = m.Word32And(a, b);
|
|
Node* compare = m.Uint32LessThan(m.Int32Constant(0), add);
|
|
|
|
RawMachineLabel blocka, blockb;
|
|
m.Branch(compare, &blocka, &blockb);
|
|
m.Bind(&blocka);
|
|
m.Return(m.Int32Constant(t_constant));
|
|
m.Bind(&blockb);
|
|
m.Return(m.Int32Constant(f_constant));
|
|
|
|
FOR_INT32_INPUTS(i) {
|
|
FOR_INT32_INPUTS(j) {
|
|
uint32_t a = *i;
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uint32_t b = *j;
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int32_t expect = (0 < (a & b)) ? t_constant : f_constant;
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CHECK_EQ(expect, m.Call(a, b));
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}
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}
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}
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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