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#include <iostream>
#include <ir/local-graph.h>
#include <wasm-builder.h>
#include <wasm.h>
using namespace wasm;
int main() {
Module wasm;
Builder builder(wasm);
{
Function foo;
foo.type = Signature(Type::none, Type::none);
foo.vars = {Type::i32};
auto* get1 = builder.makeLocalGet(0, Type::i32);
auto* get2 = builder.makeLocalGet(0, Type::i32);
foo.body = builder.makeBlock({
builder.makeLocalSet(0, builder.makeConst(Literal(int32_t(0)))),
// two equivalent gets, as both are preceded by the same single set
builder.makeDrop(get1),
builder.makeDrop(get2),
});
LocalGraph graph(&foo);
assert(graph.equivalent(get1, get2));
}
{
Function foo;
foo.type = Signature(Type::none, Type::none);
foo.vars = {Type::i32};
auto* get1 = builder.makeLocalGet(0, Type::i32);
auto* get2 = builder.makeLocalGet(0, Type::i32);
foo.body = builder.makeBlock({
// two non-equivalent gets, as there is a set in between them
builder.makeDrop(get1),
builder.makeLocalSet(0, builder.makeConst(Literal(int32_t(0)))),
builder.makeDrop(get2),
});
LocalGraph graph(&foo);
assert(!graph.equivalent(get1, get2));
}
{
Function foo;
foo.type = Signature({Type::i32}, Type::none);
auto* get1 = builder.makeLocalGet(0, Type::i32);
auto* get2 = builder.makeLocalGet(0, Type::i32);
foo.body = builder.makeBlock({
// two equivalent gets of the same parameter
builder.makeDrop(get1),
builder.makeDrop(get2),
});
LocalGraph graph(&foo);
assert(graph.equivalent(get1, get2));
}
{
Function foo;
foo.type = Signature({Type::i32}, Type::none);
auto* get1 = builder.makeLocalGet(0, Type::i32);
auto* get2 = builder.makeLocalGet(0, Type::i32);
foo.body = builder.makeBlock({
// two non-equivalent gets of the same parameter, as there is a set
builder.makeDrop(get1),
builder.makeLocalSet(0, builder.makeConst(Literal(int32_t(0)))),
builder.makeDrop(get2),
});
LocalGraph graph(&foo);
assert(!graph.equivalent(get1, get2));
}
{
Function foo;
foo.type = Signature({Type::i32, Type::i32}, Type::none);
auto* get1 = builder.makeLocalGet(0, Type::i32);
auto* get2 = builder.makeLocalGet(1, Type::i32);
foo.body = builder.makeBlock({
// two non-equivalent gets as they are of different parameters
builder.makeDrop(get1),
builder.makeDrop(get2),
});
LocalGraph graph(&foo);
assert(!graph.equivalent(get1, get2));
}
{
Function foo;
foo.type = Signature(Type::none, Type::none);
foo.vars = {Type::i32, Type::i32};
auto* get1 = builder.makeLocalGet(0, Type::i32);
auto* get2 = builder.makeLocalGet(1, Type::i32);
foo.body = builder.makeBlock({
// two equivalent gets, even though they have a different index, as both
// use the zero initialized value
builder.makeDrop(get1),
builder.makeDrop(get2),
});
LocalGraph graph(&foo);
assert(graph.equivalent(get1, get2));
}
{
Function foo;
foo.type = Signature(Type::none, Type::none);
foo.vars = {Type::i32, Type::f64};
auto* get1 = builder.makeLocalGet(0, Type::i32);
auto* get2 = builder.makeLocalGet(1, Type::f64);
foo.body = builder.makeBlock({
// two non-equivalent gets as their zero-init value is different
builder.makeDrop(get1),
builder.makeDrop(get2),
});
LocalGraph graph(&foo);
assert(!graph.equivalent(get1, get2));
}
std::cout << "Success." << std::endl;
return 0;
}
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