mirror of
https://github.com/luau-lang/luau.git
synced 2024-11-15 14:25:44 +08:00
1212fdacbf
Once again, all of our changes this week are for new type solver and the JIT. In the new type solver, we fixed cyclic type alias handling and multiple stability issues. In the JIT, our main progress was for arm64, where, after lowering 36% of instructions, we start seeing first Luau functions executing natively. For x64, we performed code cleanup and refactoring to allow for future optimizations.
1799 lines
52 KiB
C++
1799 lines
52 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
|
|
#include "Luau/IrBuilder.h"
|
|
#include "Luau/IrAnalysis.h"
|
|
#include "Luau/IrDump.h"
|
|
#include "Luau/IrUtils.h"
|
|
#include "Luau/OptimizeConstProp.h"
|
|
#include "Luau/OptimizeFinalX64.h"
|
|
|
|
#include "doctest.h"
|
|
|
|
#include <limits.h>
|
|
|
|
using namespace Luau::CodeGen;
|
|
|
|
class IrBuilderFixture
|
|
{
|
|
public:
|
|
void constantFold()
|
|
{
|
|
for (IrBlock& block : build.function.blocks)
|
|
{
|
|
if (block.kind == IrBlockKind::Dead)
|
|
continue;
|
|
|
|
for (size_t i = block.start; i <= block.finish; i++)
|
|
{
|
|
IrInst& inst = build.function.instructions[i];
|
|
|
|
applySubstitutions(build.function, inst);
|
|
foldConstants(build, build.function, block, uint32_t(i));
|
|
}
|
|
}
|
|
}
|
|
|
|
template<typename F>
|
|
void withOneBlock(F&& f)
|
|
{
|
|
IrOp main = build.block(IrBlockKind::Internal);
|
|
IrOp a = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(main);
|
|
f(a);
|
|
|
|
build.beginBlock(a);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
};
|
|
|
|
template<typename F>
|
|
void withTwoBlocks(F&& f)
|
|
{
|
|
IrOp main = build.block(IrBlockKind::Internal);
|
|
IrOp a = build.block(IrBlockKind::Internal);
|
|
IrOp b = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(main);
|
|
f(a, b);
|
|
|
|
build.beginBlock(a);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
build.beginBlock(b);
|
|
build.inst(IrCmd::RETURN, build.constUint(2));
|
|
};
|
|
|
|
void checkEq(IrOp instOp, const IrInst& inst)
|
|
{
|
|
const IrInst& target = build.function.instOp(instOp);
|
|
CHECK(target.cmd == inst.cmd);
|
|
CHECK(target.a == inst.a);
|
|
CHECK(target.b == inst.b);
|
|
CHECK(target.c == inst.c);
|
|
CHECK(target.d == inst.d);
|
|
CHECK(target.e == inst.e);
|
|
CHECK(target.f == inst.f);
|
|
}
|
|
|
|
IrBuilder build;
|
|
|
|
// Luau.VM headers are not accessible
|
|
static const int tnil = 0;
|
|
static const int tboolean = 1;
|
|
static const int tnumber = 3;
|
|
};
|
|
|
|
TEST_SUITE_BEGIN("Optimization");
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "FinalX64OptCheckTag")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
|
|
build.beginBlock(block);
|
|
IrOp tag1 = build.inst(IrCmd::LOAD_TAG, build.vmReg(2));
|
|
build.inst(IrCmd::CHECK_TAG, tag1, build.constTag(0), fallback);
|
|
IrOp tag2 = build.inst(IrCmd::LOAD_TAG, build.vmConst(5));
|
|
build.inst(IrCmd::CHECK_TAG, tag2, build.constTag(0), fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
updateUseCounts(build.function);
|
|
optimizeMemoryOperandsX64(build.function);
|
|
|
|
// Load from memory is 'inlined' into CHECK_TAG
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
CHECK_TAG R2, tnil, bb_fallback_1
|
|
CHECK_TAG K5, tnil, bb_fallback_1
|
|
RETURN 0u
|
|
|
|
bb_fallback_1:
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "FinalX64OptBinaryArith")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
IrOp opA = build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(1));
|
|
IrOp opB = build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(2));
|
|
build.inst(IrCmd::ADD_NUM, opA, opB);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
optimizeMemoryOperandsX64(build.function);
|
|
|
|
// Load from memory is 'inlined' into second argument
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_DOUBLE R1
|
|
%2 = ADD_NUM %0, R2
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "FinalX64OptEqTag1")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
IrOp opA = build.inst(IrCmd::LOAD_TAG, build.vmReg(1));
|
|
IrOp opB = build.inst(IrCmd::LOAD_TAG, build.vmReg(2));
|
|
build.inst(IrCmd::JUMP_EQ_TAG, opA, opB, trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
optimizeMemoryOperandsX64(build.function);
|
|
|
|
// Load from memory is 'inlined' into first argument
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%1 = LOAD_TAG R2
|
|
JUMP_EQ_TAG R1, %1, bb_1, bb_2
|
|
|
|
bb_1:
|
|
RETURN 0u
|
|
|
|
bb_2:
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "FinalX64OptEqTag2")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
IrOp opA = build.inst(IrCmd::LOAD_TAG, build.vmReg(1));
|
|
IrOp opB = build.inst(IrCmd::LOAD_TAG, build.vmReg(2));
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(6), opA);
|
|
build.inst(IrCmd::JUMP_EQ_TAG, opA, opB, trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
optimizeMemoryOperandsX64(build.function);
|
|
|
|
// Load from memory is 'inlined' into second argument is it can't be done for the first one
|
|
// We also swap first and second argument to generate memory access on the LHS
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_TAG R1
|
|
STORE_TAG R6, %0
|
|
JUMP_EQ_TAG R2, %0, bb_1, bb_2
|
|
|
|
bb_1:
|
|
RETURN 0u
|
|
|
|
bb_2:
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "FinalX64OptEqTag3")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
IrOp table = build.inst(IrCmd::LOAD_POINTER, build.vmReg(1));
|
|
IrOp arrElem = build.inst(IrCmd::GET_ARR_ADDR, table, build.constInt(0));
|
|
IrOp opA = build.inst(IrCmd::LOAD_TAG, arrElem);
|
|
build.inst(IrCmd::JUMP_EQ_TAG, opA, build.constTag(0), trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
optimizeMemoryOperandsX64(build.function);
|
|
|
|
// Load from memory is 'inlined' into first argument
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_POINTER R1
|
|
%1 = GET_ARR_ADDR %0, 0i
|
|
%2 = LOAD_TAG %1
|
|
JUMP_EQ_TAG %2, tnil, bb_1, bb_2
|
|
|
|
bb_1:
|
|
RETURN 0u
|
|
|
|
bb_2:
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "FinalX64OptJumpCmpNum")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
IrOp opA = build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(1));
|
|
IrOp opB = build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(2));
|
|
build.inst(IrCmd::JUMP_CMP_NUM, opA, opB, trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
optimizeMemoryOperandsX64(build.function);
|
|
|
|
// Load from memory is 'inlined' into first argument
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%1 = LOAD_DOUBLE R2
|
|
JUMP_CMP_NUM R1, %1, bb_1, bb_2
|
|
|
|
bb_1:
|
|
RETURN 0u
|
|
|
|
bb_2:
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_SUITE_END();
|
|
|
|
TEST_SUITE_BEGIN("ConstantFolding");
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "Numeric")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::ADD_INT, build.constInt(10), build.constInt(20)));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::ADD_INT, build.constInt(INT_MAX), build.constInt(1)));
|
|
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::SUB_INT, build.constInt(10), build.constInt(20)));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::SUB_INT, build.constInt(INT_MIN), build.constInt(1)));
|
|
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::ADD_NUM, build.constDouble(2), build.constDouble(5)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::SUB_NUM, build.constDouble(2), build.constDouble(5)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::MUL_NUM, build.constDouble(2), build.constDouble(5)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::DIV_NUM, build.constDouble(2), build.constDouble(5)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::MOD_NUM, build.constDouble(5), build.constDouble(2)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::POW_NUM, build.constDouble(5), build.constDouble(2)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::MIN_NUM, build.constDouble(5), build.constDouble(2)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::MAX_NUM, build.constDouble(5), build.constDouble(2)));
|
|
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::UNM_NUM, build.constDouble(5)));
|
|
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::NOT_ANY, build.constTag(tnil), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(1))));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::NOT_ANY, build.constTag(tnumber), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(1))));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::NOT_ANY, build.constTag(tboolean), build.constInt(0)));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::NOT_ANY, build.constTag(tboolean), build.constInt(1)));
|
|
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.inst(IrCmd::INT_TO_NUM, build.constInt(8)));
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constantFold();
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_INT R0, 30i
|
|
STORE_INT R0, -2147483648i
|
|
STORE_INT R0, -10i
|
|
STORE_INT R0, 2147483647i
|
|
STORE_DOUBLE R0, 7
|
|
STORE_DOUBLE R0, -3
|
|
STORE_DOUBLE R0, 10
|
|
STORE_DOUBLE R0, 0.40000000000000002
|
|
STORE_DOUBLE R0, 1
|
|
STORE_DOUBLE R0, 25
|
|
STORE_DOUBLE R0, 2
|
|
STORE_DOUBLE R0, 5
|
|
STORE_DOUBLE R0, -5
|
|
STORE_INT R0, 1i
|
|
STORE_INT R0, 0i
|
|
STORE_INT R0, 1i
|
|
STORE_INT R0, 0i
|
|
STORE_DOUBLE R0, 8
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "ControlFlowEq")
|
|
{
|
|
withTwoBlocks([this](IrOp a, IrOp b) {
|
|
build.inst(IrCmd::JUMP_EQ_TAG, build.constTag(tnil), build.constTag(tnil), a, b);
|
|
});
|
|
|
|
withTwoBlocks([this](IrOp a, IrOp b) {
|
|
build.inst(IrCmd::JUMP_EQ_TAG, build.constTag(tnil), build.constTag(tnumber), a, b);
|
|
});
|
|
|
|
withTwoBlocks([this](IrOp a, IrOp b) {
|
|
build.inst(IrCmd::JUMP_EQ_INT, build.constInt(0), build.constInt(0), a, b);
|
|
});
|
|
|
|
withTwoBlocks([this](IrOp a, IrOp b) {
|
|
build.inst(IrCmd::JUMP_EQ_INT, build.constInt(0), build.constInt(1), a, b);
|
|
});
|
|
|
|
updateUseCounts(build.function);
|
|
constantFold();
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
RETURN 1u
|
|
|
|
bb_3:
|
|
JUMP bb_5
|
|
|
|
bb_5:
|
|
RETURN 2u
|
|
|
|
bb_6:
|
|
JUMP bb_7
|
|
|
|
bb_7:
|
|
RETURN 1u
|
|
|
|
bb_9:
|
|
JUMP bb_11
|
|
|
|
bb_11:
|
|
RETURN 2u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "NumToIndex")
|
|
{
|
|
withOneBlock([this](IrOp a) {
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::TRY_NUM_TO_INDEX, build.constDouble(4), a));
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
});
|
|
|
|
withOneBlock([this](IrOp a) {
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::TRY_NUM_TO_INDEX, build.constDouble(1.2), a));
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
});
|
|
|
|
withOneBlock([this](IrOp a) {
|
|
IrOp nan = build.inst(IrCmd::DIV_NUM, build.constDouble(0.0), build.constDouble(0.0));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.inst(IrCmd::TRY_NUM_TO_INDEX, nan, a));
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
});
|
|
|
|
updateUseCounts(build.function);
|
|
constantFold();
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_INT R0, 4i
|
|
RETURN 0u
|
|
|
|
bb_2:
|
|
JUMP bb_3
|
|
|
|
bb_3:
|
|
RETURN 1u
|
|
|
|
bb_4:
|
|
JUMP bb_5
|
|
|
|
bb_5:
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "Guards")
|
|
{
|
|
withOneBlock([this](IrOp a) {
|
|
build.inst(IrCmd::CHECK_TAG, build.constTag(tnumber), build.constTag(tnumber), a);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
});
|
|
|
|
withOneBlock([this](IrOp a) {
|
|
build.inst(IrCmd::CHECK_TAG, build.constTag(tnil), build.constTag(tnumber), a);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
});
|
|
|
|
updateUseCounts(build.function);
|
|
constantFold();
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
RETURN 0u
|
|
|
|
bb_2:
|
|
JUMP bb_3
|
|
|
|
bb_3:
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "ControlFlowCmpNum")
|
|
{
|
|
auto compareFold = [this](IrOp lhs, IrOp rhs, IrCondition cond, bool result) {
|
|
IrOp instOp;
|
|
IrInst instExpected;
|
|
|
|
withTwoBlocks([&](IrOp a, IrOp b) {
|
|
IrOp nan = build.inst(IrCmd::DIV_NUM, build.constDouble(0.0), build.constDouble(0.0));
|
|
instOp = build.inst(
|
|
IrCmd::JUMP_CMP_NUM, lhs.kind == IrOpKind::None ? nan : lhs, rhs.kind == IrOpKind::None ? nan : rhs, build.cond(cond), a, b);
|
|
instExpected = IrInst{IrCmd::JUMP, result ? a : b};
|
|
});
|
|
|
|
updateUseCounts(build.function);
|
|
constantFold();
|
|
checkEq(instOp, instExpected);
|
|
};
|
|
|
|
IrOp nan; // Empty operand is used to signal a placement of a 'nan'
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::Equal, true);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::Equal, false);
|
|
compareFold(nan, nan, IrCondition::Equal, false);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::NotEqual, false);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::NotEqual, true);
|
|
compareFold(nan, nan, IrCondition::NotEqual, true);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::Less, false);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::Less, true);
|
|
compareFold(build.constDouble(2), build.constDouble(1), IrCondition::Less, false);
|
|
compareFold(build.constDouble(1), nan, IrCondition::Less, false);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::NotLess, true);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::NotLess, false);
|
|
compareFold(build.constDouble(2), build.constDouble(1), IrCondition::NotLess, true);
|
|
compareFold(build.constDouble(1), nan, IrCondition::NotLess, true);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::LessEqual, true);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::LessEqual, true);
|
|
compareFold(build.constDouble(2), build.constDouble(1), IrCondition::LessEqual, false);
|
|
compareFold(build.constDouble(1), nan, IrCondition::LessEqual, false);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::NotLessEqual, false);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::NotLessEqual, false);
|
|
compareFold(build.constDouble(2), build.constDouble(1), IrCondition::NotLessEqual, true);
|
|
compareFold(build.constDouble(1), nan, IrCondition::NotLessEqual, true);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::Greater, false);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::Greater, false);
|
|
compareFold(build.constDouble(2), build.constDouble(1), IrCondition::Greater, true);
|
|
compareFold(build.constDouble(1), nan, IrCondition::Greater, false);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::NotGreater, true);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::NotGreater, true);
|
|
compareFold(build.constDouble(2), build.constDouble(1), IrCondition::NotGreater, false);
|
|
compareFold(build.constDouble(1), nan, IrCondition::NotGreater, true);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::GreaterEqual, true);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::GreaterEqual, false);
|
|
compareFold(build.constDouble(2), build.constDouble(1), IrCondition::GreaterEqual, true);
|
|
compareFold(build.constDouble(1), nan, IrCondition::GreaterEqual, false);
|
|
|
|
compareFold(build.constDouble(1), build.constDouble(1), IrCondition::NotGreaterEqual, false);
|
|
compareFold(build.constDouble(1), build.constDouble(2), IrCondition::NotGreaterEqual, true);
|
|
compareFold(build.constDouble(2), build.constDouble(1), IrCondition::NotGreaterEqual, false);
|
|
compareFold(build.constDouble(1), nan, IrCondition::NotGreaterEqual, true);
|
|
}
|
|
|
|
TEST_SUITE_END();
|
|
|
|
TEST_SUITE_BEGIN("ConstantPropagation");
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "RememberTagsAndValues")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(1), build.constInt(10));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(2), build.constDouble(0.5));
|
|
|
|
// We know constants from those loads
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(3), build.inst(IrCmd::LOAD_TAG, build.vmReg(0)));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(4), build.inst(IrCmd::LOAD_INT, build.vmReg(1)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(5), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(2)));
|
|
|
|
// We know that these overrides have no effect
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(1), build.constInt(10));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(2), build.constDouble(0.5));
|
|
|
|
// But we can invalidate them with unknown values
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.inst(IrCmd::LOAD_TAG, build.vmReg(6)));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(1), build.inst(IrCmd::LOAD_INT, build.vmReg(7)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(2), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(8)));
|
|
|
|
// So now the constant stores have to be made
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(9), build.inst(IrCmd::LOAD_TAG, build.vmReg(0)));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(10), build.inst(IrCmd::LOAD_INT, build.vmReg(1)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(11), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(2)));
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
STORE_INT R1, 10i
|
|
STORE_DOUBLE R2, 0.5
|
|
STORE_TAG R3, tnumber
|
|
STORE_INT R4, 10i
|
|
STORE_DOUBLE R5, 0.5
|
|
%12 = LOAD_TAG R6
|
|
STORE_TAG R0, %12
|
|
%14 = LOAD_INT R7
|
|
STORE_INT R1, %14
|
|
%16 = LOAD_DOUBLE R8
|
|
STORE_DOUBLE R2, %16
|
|
%18 = LOAD_TAG R0
|
|
STORE_TAG R9, %18
|
|
%20 = LOAD_INT R1
|
|
STORE_INT R10, %20
|
|
%22 = LOAD_DOUBLE R2
|
|
STORE_DOUBLE R11, %22
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "PropagateThroughTvalue")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.constDouble(0.5));
|
|
|
|
IrOp tv = build.inst(IrCmd::LOAD_TVALUE, build.vmReg(0));
|
|
build.inst(IrCmd::STORE_TVALUE, build.vmReg(1), tv);
|
|
|
|
// We know constants from those loads
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(3), build.inst(IrCmd::LOAD_TAG, build.vmReg(1)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(3), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(1)));
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
STORE_DOUBLE R0, 0.5
|
|
%2 = LOAD_TVALUE R0
|
|
STORE_TVALUE R1, %2
|
|
STORE_TAG R3, tnumber
|
|
STORE_DOUBLE R3, 0.5
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "SkipCheckTag")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
|
|
build.beginBlock(block);
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::CHECK_TAG, build.inst(IrCmd::LOAD_TAG, build.vmReg(0)), build.constTag(tnumber), fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "SkipOncePerBlockChecks")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
|
|
build.inst(IrCmd::CHECK_SAFE_ENV);
|
|
build.inst(IrCmd::CHECK_SAFE_ENV);
|
|
build.inst(IrCmd::CHECK_GC);
|
|
build.inst(IrCmd::CHECK_GC);
|
|
|
|
build.inst(IrCmd::DO_LEN, build.vmReg(1), build.vmReg(2)); // Can make env unsafe
|
|
build.inst(IrCmd::CHECK_SAFE_ENV);
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
CHECK_SAFE_ENV
|
|
CHECK_GC
|
|
DO_LEN R1, R2
|
|
CHECK_SAFE_ENV
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "RememberTableState")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
|
|
build.beginBlock(block);
|
|
|
|
IrOp table = build.inst(IrCmd::LOAD_POINTER, build.vmReg(0));
|
|
|
|
build.inst(IrCmd::CHECK_NO_METATABLE, table, fallback);
|
|
build.inst(IrCmd::CHECK_READONLY, table, fallback);
|
|
|
|
build.inst(IrCmd::CHECK_NO_METATABLE, table, fallback);
|
|
build.inst(IrCmd::CHECK_READONLY, table, fallback);
|
|
|
|
build.inst(IrCmd::DO_LEN, build.vmReg(1), build.vmReg(2)); // Can access all heap memory
|
|
|
|
build.inst(IrCmd::CHECK_NO_METATABLE, table, fallback);
|
|
build.inst(IrCmd::CHECK_READONLY, table, fallback);
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_POINTER R0
|
|
CHECK_NO_METATABLE %0, bb_fallback_1
|
|
CHECK_READONLY %0, bb_fallback_1
|
|
DO_LEN R1, R2
|
|
CHECK_NO_METATABLE %0, bb_fallback_1
|
|
CHECK_READONLY %0, bb_fallback_1
|
|
RETURN 0u
|
|
|
|
bb_fallback_1:
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "SkipUselessBarriers")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
IrOp table = build.inst(IrCmd::LOAD_POINTER, build.vmReg(1));
|
|
build.inst(IrCmd::BARRIER_TABLE_FORWARD, table, build.vmReg(0));
|
|
IrOp something = build.inst(IrCmd::LOAD_POINTER, build.vmReg(2));
|
|
build.inst(IrCmd::BARRIER_OBJ, something, build.vmReg(0));
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "ConcatInvalidation")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(1), build.constInt(10));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(2), build.constDouble(0.5));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(3), build.constDouble(2.0));
|
|
|
|
build.inst(IrCmd::CONCAT, build.vmReg(0), build.constUint(3));
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(4), build.inst(IrCmd::LOAD_TAG, build.vmReg(0)));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(5), build.inst(IrCmd::LOAD_INT, build.vmReg(1)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(6), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(2)));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(7), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(3)));
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
STORE_INT R1, 10i
|
|
STORE_DOUBLE R2, 0.5
|
|
STORE_DOUBLE R3, 2
|
|
CONCAT R0, 3u
|
|
%5 = LOAD_TAG R0
|
|
STORE_TAG R4, %5
|
|
%7 = LOAD_INT R1
|
|
STORE_INT R5, %7
|
|
%9 = LOAD_DOUBLE R2
|
|
STORE_DOUBLE R6, %9
|
|
STORE_DOUBLE R7, 2
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "BuiltinFastcallsMayInvalidateMemory")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
|
|
build.beginBlock(block);
|
|
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.constDouble(0.5));
|
|
|
|
IrOp table = build.inst(IrCmd::LOAD_POINTER, build.vmReg(0));
|
|
|
|
build.inst(IrCmd::CHECK_NO_METATABLE, table, fallback);
|
|
build.inst(IrCmd::CHECK_READONLY, table, fallback);
|
|
|
|
build.inst(IrCmd::INVOKE_FASTCALL, build.constUint(LBF_SETMETATABLE), build.vmReg(1), build.vmReg(2), build.vmReg(3), build.constInt(3),
|
|
build.constInt(1));
|
|
|
|
build.inst(IrCmd::CHECK_NO_METATABLE, table, fallback);
|
|
build.inst(IrCmd::CHECK_READONLY, table, fallback);
|
|
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(1), build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(0))); // At least R0 wasn't touched
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_DOUBLE R0, 0.5
|
|
%1 = LOAD_POINTER R0
|
|
CHECK_NO_METATABLE %1, bb_fallback_1
|
|
CHECK_READONLY %1, bb_fallback_1
|
|
%4 = INVOKE_FASTCALL 61u, R1, R2, R3, 3i, 1i
|
|
CHECK_NO_METATABLE %1, bb_fallback_1
|
|
CHECK_READONLY %1, bb_fallback_1
|
|
STORE_DOUBLE R1, 0.5
|
|
RETURN 0u
|
|
|
|
bb_fallback_1:
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "RedundantStoreCheckConstantType")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.constInt(10));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(0), build.constDouble(0.5));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(0), build.constInt(10));
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_INT R0, 10i
|
|
STORE_DOUBLE R0, 0.5
|
|
STORE_INT R0, 10i
|
|
RETURN 0u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "TagCheckPropagation")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
|
|
build.beginBlock(block);
|
|
|
|
IrOp unknown = build.inst(IrCmd::LOAD_TAG, build.vmReg(0));
|
|
|
|
build.inst(IrCmd::CHECK_TAG, unknown, build.constTag(tnumber), fallback);
|
|
build.inst(IrCmd::CHECK_TAG, unknown, build.constTag(tnumber), fallback);
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_TAG R0
|
|
CHECK_TAG %0, tnumber, bb_fallback_1
|
|
RETURN 0u
|
|
|
|
bb_fallback_1:
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "TagCheckPropagationConflicting")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
|
|
build.beginBlock(block);
|
|
|
|
IrOp unknown = build.inst(IrCmd::LOAD_TAG, build.vmReg(0));
|
|
|
|
build.inst(IrCmd::CHECK_TAG, unknown, build.constTag(tnumber), fallback);
|
|
build.inst(IrCmd::CHECK_TAG, unknown, build.constTag(tnil), fallback);
|
|
|
|
build.inst(IrCmd::RETURN, build.constUint(0));
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_TAG R0
|
|
CHECK_TAG %0, tnumber, bb_fallback_1
|
|
JUMP bb_fallback_1
|
|
|
|
bb_fallback_1:
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "TruthyTestRemoval")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
|
|
build.beginBlock(block);
|
|
IrOp unknown = build.inst(IrCmd::LOAD_TAG, build.vmReg(1));
|
|
build.inst(IrCmd::CHECK_TAG, unknown, build.constTag(tnumber), fallback);
|
|
build.inst(IrCmd::JUMP_IF_TRUTHY, build.vmReg(1), trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(2));
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(3));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_TAG R1
|
|
CHECK_TAG %0, tnumber, bb_fallback_3
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
RETURN 1u
|
|
|
|
bb_fallback_3:
|
|
RETURN 3u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "FalsyTestRemoval")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
|
|
build.beginBlock(block);
|
|
IrOp unknown = build.inst(IrCmd::LOAD_TAG, build.vmReg(1));
|
|
build.inst(IrCmd::CHECK_TAG, unknown, build.constTag(tnumber), fallback);
|
|
build.inst(IrCmd::JUMP_IF_FALSY, build.vmReg(1), trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(2));
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::RETURN, build.constUint(3));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_TAG R1
|
|
CHECK_TAG %0, tnumber, bb_fallback_3
|
|
JUMP bb_2
|
|
|
|
bb_2:
|
|
RETURN 2u
|
|
|
|
bb_fallback_3:
|
|
RETURN 3u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "TagEqRemoval")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
IrOp tag = build.inst(IrCmd::LOAD_TAG, build.vmReg(1));
|
|
build.inst(IrCmd::CHECK_TAG, tag, build.constTag(tboolean));
|
|
build.inst(IrCmd::JUMP_EQ_TAG, tag, build.constTag(tnumber), trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(2));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_TAG R1
|
|
CHECK_TAG %0, tboolean
|
|
JUMP bb_2
|
|
|
|
bb_2:
|
|
RETURN 2u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "IntEqRemoval")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
IrOp value = build.inst(IrCmd::LOAD_INT, build.vmReg(1));
|
|
build.inst(IrCmd::STORE_INT, build.vmReg(1), build.constInt(5));
|
|
build.inst(IrCmd::JUMP_EQ_INT, value, build.constInt(5), trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(2));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_INT R1, 5i
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "NumCmpRemoval")
|
|
{
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp trueBlock = build.block(IrBlockKind::Internal);
|
|
IrOp falseBlock = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block);
|
|
IrOp value = build.inst(IrCmd::LOAD_DOUBLE, build.vmReg(1));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(1), build.constDouble(4.0));
|
|
build.inst(IrCmd::JUMP_CMP_NUM, value, build.constDouble(8.0), build.cond(IrCondition::Greater), trueBlock, falseBlock);
|
|
|
|
build.beginBlock(trueBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
build.beginBlock(falseBlock);
|
|
build.inst(IrCmd::RETURN, build.constUint(2));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_DOUBLE R1, 4
|
|
JUMP bb_2
|
|
|
|
bb_2:
|
|
RETURN 2u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "DataFlowsThroughDirectJumpToUniqueSuccessor")
|
|
{
|
|
IrOp block1 = build.block(IrBlockKind::Internal);
|
|
IrOp block2 = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block1);
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
build.beginBlock(block2);
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(1), build.inst(IrCmd::LOAD_TAG, build.vmReg(0)));
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
STORE_TAG R1, tnumber
|
|
RETURN 1u
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "DataDoesNotFlowThroughDirectJumpToNonUniqueSuccessor")
|
|
{
|
|
IrOp block1 = build.block(IrBlockKind::Internal);
|
|
IrOp block2 = build.block(IrBlockKind::Internal);
|
|
IrOp block3 = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block1);
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
build.beginBlock(block2);
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(1), build.inst(IrCmd::LOAD_TAG, build.vmReg(0)));
|
|
build.inst(IrCmd::RETURN, build.constUint(1));
|
|
|
|
build.beginBlock(block3);
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
%2 = LOAD_TAG R0
|
|
STORE_TAG R1, %2
|
|
RETURN 1u
|
|
|
|
bb_2:
|
|
JUMP bb_1
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "EntryBlockUseRemoval")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
IrOp repeat = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::JUMP_IF_TRUTHY, build.vmReg(0), exit, repeat);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(0));
|
|
|
|
build.beginBlock(repeat);
|
|
build.inst(IrCmd::INTERRUPT, build.constUint(0));
|
|
build.inst(IrCmd::JUMP, entry);
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
RETURN R0, 0i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "RecursiveSccUseRemoval1")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
IrOp repeat = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(0));
|
|
|
|
build.beginBlock(block);
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::JUMP_IF_TRUTHY, build.vmReg(0), exit, repeat);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(0));
|
|
|
|
build.beginBlock(repeat);
|
|
build.inst(IrCmd::INTERRUPT, build.constUint(0));
|
|
build.inst(IrCmd::JUMP, block);
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
RETURN R0, 0i
|
|
|
|
bb_1:
|
|
STORE_TAG R0, tnumber
|
|
JUMP bb_2
|
|
|
|
bb_2:
|
|
RETURN R0, 0i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "RecursiveSccUseRemoval2")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp exit1 = build.block(IrBlockKind::Internal);
|
|
IrOp block = build.block(IrBlockKind::Internal);
|
|
IrOp exit2 = build.block(IrBlockKind::Internal);
|
|
IrOp repeat = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::JUMP_EQ_INT, build.constInt(0), build.constInt(1), block, exit1);
|
|
|
|
build.beginBlock(exit1);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(0));
|
|
|
|
build.beginBlock(block);
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::JUMP_IF_TRUTHY, build.vmReg(0), exit2, repeat);
|
|
|
|
build.beginBlock(exit2);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(0));
|
|
|
|
build.beginBlock(repeat);
|
|
build.inst(IrCmd::INTERRUPT, build.constUint(0));
|
|
build.inst(IrCmd::JUMP, block);
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
RETURN R0, 0i
|
|
|
|
bb_2:
|
|
STORE_TAG R0, tnumber
|
|
JUMP bb_3
|
|
|
|
bb_3:
|
|
RETURN R0, 0i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_SUITE_END();
|
|
|
|
TEST_SUITE_BEGIN("LinearExecutionFlowExtraction");
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "SimplePathExtraction")
|
|
{
|
|
IrOp block1 = build.block(IrBlockKind::Internal);
|
|
IrOp fallback1 = build.block(IrBlockKind::Fallback);
|
|
IrOp block2 = build.block(IrBlockKind::Internal);
|
|
IrOp fallback2 = build.block(IrBlockKind::Fallback);
|
|
IrOp block3 = build.block(IrBlockKind::Internal);
|
|
IrOp block4 = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block1);
|
|
|
|
IrOp tag1 = build.inst(IrCmd::LOAD_TAG, build.vmReg(2));
|
|
build.inst(IrCmd::CHECK_TAG, tag1, build.constTag(tnumber), fallback1);
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
build.beginBlock(fallback1);
|
|
build.inst(IrCmd::DO_LEN, build.vmReg(1), build.vmReg(2));
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
build.beginBlock(block2);
|
|
IrOp tag2 = build.inst(IrCmd::LOAD_TAG, build.vmReg(2));
|
|
build.inst(IrCmd::CHECK_TAG, tag2, build.constTag(tnumber), fallback2);
|
|
build.inst(IrCmd::JUMP, block3);
|
|
|
|
build.beginBlock(fallback2);
|
|
build.inst(IrCmd::DO_LEN, build.vmReg(0), build.vmReg(2));
|
|
build.inst(IrCmd::JUMP, block3);
|
|
|
|
build.beginBlock(block3);
|
|
build.inst(IrCmd::JUMP, block4);
|
|
|
|
build.beginBlock(block4);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_TAG R2
|
|
CHECK_TAG %0, tnumber, bb_fallback_1
|
|
JUMP bb_linear_6
|
|
|
|
bb_fallback_1:
|
|
DO_LEN R1, R2
|
|
JUMP bb_2
|
|
|
|
bb_2:
|
|
%5 = LOAD_TAG R2
|
|
CHECK_TAG %5, tnumber, bb_fallback_3
|
|
JUMP bb_4
|
|
|
|
bb_fallback_3:
|
|
DO_LEN R0, R2
|
|
JUMP bb_4
|
|
|
|
bb_4:
|
|
JUMP bb_5
|
|
|
|
bb_5:
|
|
RETURN R0, 0i
|
|
|
|
bb_linear_6:
|
|
RETURN R0, 0i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "NoPathExtractionForBlocksWithLiveOutValues")
|
|
{
|
|
IrOp block1 = build.block(IrBlockKind::Internal);
|
|
IrOp fallback1 = build.block(IrBlockKind::Fallback);
|
|
IrOp block2 = build.block(IrBlockKind::Internal);
|
|
IrOp fallback2 = build.block(IrBlockKind::Fallback);
|
|
IrOp block3 = build.block(IrBlockKind::Internal);
|
|
IrOp block4a = build.block(IrBlockKind::Internal);
|
|
IrOp block4b = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block1);
|
|
|
|
IrOp tag1 = build.inst(IrCmd::LOAD_TAG, build.vmReg(2));
|
|
build.inst(IrCmd::CHECK_TAG, tag1, build.constTag(tnumber), fallback1);
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
build.beginBlock(fallback1);
|
|
build.inst(IrCmd::DO_LEN, build.vmReg(1), build.vmReg(2));
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
build.beginBlock(block2);
|
|
IrOp tag2 = build.inst(IrCmd::LOAD_TAG, build.vmReg(2));
|
|
build.inst(IrCmd::CHECK_TAG, tag2, build.constTag(tnumber), fallback2);
|
|
build.inst(IrCmd::JUMP, block3);
|
|
|
|
build.beginBlock(fallback2);
|
|
build.inst(IrCmd::DO_LEN, build.vmReg(0), build.vmReg(2));
|
|
build.inst(IrCmd::JUMP, block3);
|
|
|
|
build.beginBlock(block3);
|
|
IrOp tag3a = build.inst(IrCmd::LOAD_TAG, build.vmReg(3));
|
|
build.inst(IrCmd::JUMP_EQ_TAG, tag3a, build.constTag(tnil), block4a, block4b);
|
|
|
|
build.beginBlock(block4a);
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), tag3a);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(0));
|
|
|
|
build.beginBlock(block4b);
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), tag3a);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(0));
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
%0 = LOAD_TAG R2
|
|
CHECK_TAG %0, tnumber, bb_fallback_1
|
|
JUMP bb_2
|
|
|
|
bb_fallback_1:
|
|
DO_LEN R1, R2
|
|
JUMP bb_2
|
|
|
|
bb_2:
|
|
%5 = LOAD_TAG R2
|
|
CHECK_TAG %5, tnumber, bb_fallback_3
|
|
JUMP bb_4
|
|
|
|
bb_fallback_3:
|
|
DO_LEN R0, R2
|
|
JUMP bb_4
|
|
|
|
bb_4:
|
|
%10 = LOAD_TAG R3
|
|
JUMP_EQ_TAG %10, tnil, bb_5, bb_6
|
|
|
|
bb_5:
|
|
STORE_TAG R0, %10
|
|
RETURN R0, 0i
|
|
|
|
bb_6:
|
|
STORE_TAG R0, %10
|
|
RETURN R0, 0i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "InfiniteLoopInPathAnalysis")
|
|
{
|
|
IrOp block1 = build.block(IrBlockKind::Internal);
|
|
IrOp block2 = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(block1);
|
|
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(0), build.constTag(tnumber));
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
build.beginBlock(block2);
|
|
build.inst(IrCmd::STORE_TAG, build.vmReg(1), build.constTag(tboolean));
|
|
build.inst(IrCmd::JUMP, block2);
|
|
|
|
updateUseCounts(build.function);
|
|
constPropInBlockChains(build);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
STORE_TAG R0, tnumber
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
STORE_TAG R1, tboolean
|
|
JUMP bb_1
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_SUITE_END();
|
|
|
|
TEST_SUITE_BEGIN("Analysis");
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "SimpleDiamond")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp a = build.block(IrBlockKind::Internal);
|
|
IrOp b = build.block(IrBlockKind::Internal);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::JUMP_EQ_TAG, build.inst(IrCmd::LOAD_TAG, build.vmReg(0)), build.constTag(tnumber), a, b);
|
|
|
|
build.beginBlock(a);
|
|
build.inst(IrCmd::STORE_TVALUE, build.vmReg(2), build.inst(IrCmd::LOAD_TVALUE, build.vmReg(1)));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(b);
|
|
build.inst(IrCmd::STORE_TVALUE, build.vmReg(3), build.inst(IrCmd::LOAD_TVALUE, build.vmReg(1)));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(2), build.constInt(2));
|
|
|
|
updateUseCounts(build.function);
|
|
computeCfgInfo(build.function);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
; successors: bb_1, bb_2
|
|
; in regs: R0, R1, R2, R3
|
|
; out regs: R1, R2, R3
|
|
%0 = LOAD_TAG R0
|
|
JUMP_EQ_TAG %0, tnumber, bb_1, bb_2
|
|
|
|
bb_1:
|
|
; predecessors: bb_0
|
|
; successors: bb_3
|
|
; in regs: R1, R3
|
|
; out regs: R2, R3
|
|
%2 = LOAD_TVALUE R1
|
|
STORE_TVALUE R2, %2
|
|
JUMP bb_3
|
|
|
|
bb_2:
|
|
; predecessors: bb_0
|
|
; successors: bb_3
|
|
; in regs: R1, R2
|
|
; out regs: R2, R3
|
|
%5 = LOAD_TVALUE R1
|
|
STORE_TVALUE R3, %5
|
|
JUMP bb_3
|
|
|
|
bb_3:
|
|
; predecessors: bb_1, bb_2
|
|
; in regs: R2, R3
|
|
RETURN R2, 2i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "ImplicitFixedRegistersInVarargCall")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::FALLBACK_GETVARARGS, build.constUint(0), build.vmReg(3), build.constInt(-1));
|
|
build.inst(IrCmd::CALL, build.vmReg(0), build.constInt(-1), build.constInt(5));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(5));
|
|
|
|
updateUseCounts(build.function);
|
|
computeCfgInfo(build.function);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
; successors: bb_1
|
|
; in regs: R0, R1, R2
|
|
; out regs: R0, R1, R2, R3, R4
|
|
FALLBACK_GETVARARGS 0u, R3, -1i
|
|
CALL R0, -1i, 5i
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
; predecessors: bb_0
|
|
; in regs: R0, R1, R2, R3, R4
|
|
RETURN R0, 5i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "ExplicitUseOfRegisterInVarargSequence")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::FALLBACK_GETVARARGS, build.constUint(0), build.vmReg(1), build.constInt(-1));
|
|
IrOp results = build.inst(
|
|
IrCmd::INVOKE_FASTCALL, build.constUint(0), build.vmReg(0), build.vmReg(1), build.vmReg(2), build.constInt(-1), build.constInt(-1));
|
|
build.inst(IrCmd::ADJUST_STACK_TO_REG, build.vmReg(0), results);
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(-1));
|
|
|
|
updateUseCounts(build.function);
|
|
computeCfgInfo(build.function);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
; successors: bb_1
|
|
; out regs: R0...
|
|
FALLBACK_GETVARARGS 0u, R1, -1i
|
|
%1 = INVOKE_FASTCALL 0u, R0, R1, R2, -1i, -1i
|
|
ADJUST_STACK_TO_REG R0, %1
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
; predecessors: bb_0
|
|
; in regs: R0...
|
|
RETURN R0, -1i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "VariadicSequenceRestart")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::CALL, build.vmReg(1), build.constInt(0), build.constInt(-1));
|
|
build.inst(IrCmd::CALL, build.vmReg(0), build.constInt(-1), build.constInt(-1));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(-1));
|
|
|
|
updateUseCounts(build.function);
|
|
computeCfgInfo(build.function);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
; successors: bb_1
|
|
; in regs: R0, R1
|
|
; out regs: R0...
|
|
CALL R1, 0i, -1i
|
|
CALL R0, -1i, -1i
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
; predecessors: bb_0
|
|
; in regs: R0...
|
|
RETURN R0, -1i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "FallbackDoesNotFlowUp")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp fallback = build.block(IrBlockKind::Fallback);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::FALLBACK_GETVARARGS, build.constUint(0), build.vmReg(1), build.constInt(-1));
|
|
build.inst(IrCmd::CHECK_TAG, build.inst(IrCmd::LOAD_TAG, build.vmReg(0)), build.constTag(tnumber), fallback);
|
|
build.inst(IrCmd::CALL, build.vmReg(0), build.constInt(-1), build.constInt(-1));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(fallback);
|
|
build.inst(IrCmd::CALL, build.vmReg(0), build.constInt(-1), build.constInt(-1));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(-1));
|
|
|
|
updateUseCounts(build.function);
|
|
computeCfgInfo(build.function);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
; successors: bb_fallback_1, bb_2
|
|
; in regs: R0
|
|
; out regs: R0...
|
|
FALLBACK_GETVARARGS 0u, R1, -1i
|
|
%1 = LOAD_TAG R0
|
|
CHECK_TAG %1, tnumber, bb_fallback_1
|
|
CALL R0, -1i, -1i
|
|
JUMP bb_2
|
|
|
|
bb_fallback_1:
|
|
; predecessors: bb_0
|
|
; successors: bb_2
|
|
; in regs: R0, R1...
|
|
; out regs: R0...
|
|
CALL R0, -1i, -1i
|
|
JUMP bb_2
|
|
|
|
bb_2:
|
|
; predecessors: bb_0, bb_fallback_1
|
|
; in regs: R0...
|
|
RETURN R0, -1i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "VariadicSequencePeeling")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp a = build.block(IrBlockKind::Internal);
|
|
IrOp b = build.block(IrBlockKind::Internal);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::FALLBACK_GETVARARGS, build.constUint(0), build.vmReg(3), build.constInt(-1));
|
|
build.inst(IrCmd::JUMP_EQ_TAG, build.inst(IrCmd::LOAD_TAG, build.vmReg(0)), build.constTag(tnumber), a, b);
|
|
|
|
build.beginBlock(a);
|
|
build.inst(IrCmd::STORE_TVALUE, build.vmReg(2), build.inst(IrCmd::LOAD_TVALUE, build.vmReg(0)));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(b);
|
|
build.inst(IrCmd::STORE_TVALUE, build.vmReg(2), build.inst(IrCmd::LOAD_TVALUE, build.vmReg(1)));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(2), build.constInt(-1));
|
|
|
|
updateUseCounts(build.function);
|
|
computeCfgInfo(build.function);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
; successors: bb_1, bb_2
|
|
; in regs: R0, R1
|
|
; out regs: R0, R1, R3...
|
|
FALLBACK_GETVARARGS 0u, R3, -1i
|
|
%1 = LOAD_TAG R0
|
|
JUMP_EQ_TAG %1, tnumber, bb_1, bb_2
|
|
|
|
bb_1:
|
|
; predecessors: bb_0
|
|
; successors: bb_3
|
|
; in regs: R0, R3...
|
|
; out regs: R2...
|
|
%3 = LOAD_TVALUE R0
|
|
STORE_TVALUE R2, %3
|
|
JUMP bb_3
|
|
|
|
bb_2:
|
|
; predecessors: bb_0
|
|
; successors: bb_3
|
|
; in regs: R1, R3...
|
|
; out regs: R2...
|
|
%6 = LOAD_TVALUE R1
|
|
STORE_TVALUE R2, %6
|
|
JUMP bb_3
|
|
|
|
bb_3:
|
|
; predecessors: bb_1, bb_2
|
|
; in regs: R2...
|
|
RETURN R2, -1i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "BuiltinVariadicStart")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
IrOp exit = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(1), build.constDouble(1.0));
|
|
build.inst(IrCmd::STORE_DOUBLE, build.vmReg(2), build.constDouble(2.0));
|
|
build.inst(IrCmd::ADJUST_STACK_TO_REG, build.vmReg(2), build.constInt(1));
|
|
build.inst(IrCmd::CALL, build.vmReg(1), build.constInt(-1), build.constInt(1));
|
|
build.inst(IrCmd::JUMP, exit);
|
|
|
|
build.beginBlock(exit);
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(2));
|
|
|
|
updateUseCounts(build.function);
|
|
computeCfgInfo(build.function);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
; successors: bb_1
|
|
; in regs: R0
|
|
; out regs: R0, R1
|
|
STORE_DOUBLE R1, 1
|
|
STORE_DOUBLE R2, 2
|
|
ADJUST_STACK_TO_REG R2, 1i
|
|
CALL R1, -1i, 1i
|
|
JUMP bb_1
|
|
|
|
bb_1:
|
|
; predecessors: bb_0
|
|
; in regs: R0, R1
|
|
RETURN R0, 2i
|
|
|
|
)");
|
|
}
|
|
|
|
|
|
TEST_CASE_FIXTURE(IrBuilderFixture, "SetTable")
|
|
{
|
|
IrOp entry = build.block(IrBlockKind::Internal);
|
|
|
|
build.beginBlock(entry);
|
|
build.inst(IrCmd::SET_TABLE, build.vmReg(0), build.vmReg(1), build.constUint(1));
|
|
build.inst(IrCmd::RETURN, build.vmReg(0), build.constInt(1));
|
|
|
|
updateUseCounts(build.function);
|
|
computeCfgInfo(build.function);
|
|
|
|
CHECK("\n" + toString(build.function, /* includeUseInfo */ false) == R"(
|
|
bb_0:
|
|
; in regs: R0, R1
|
|
SET_TABLE R0, R1, 1u
|
|
RETURN R0, 1i
|
|
|
|
)");
|
|
}
|
|
|
|
TEST_SUITE_END();
|