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Enable BigInt for binaryen.js #7167

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Enable BigInt for binaryen.js #7167

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2bd1fb6
Enable BigInt for binaryen.js
tlively Dec 19, 2024
7a99d8d
Merge remote-tracking branch 'origin/main' into bigint
tlively Dec 20, 2024
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3 changes: 3 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -15,6 +15,9 @@ full changeset diff at the end of each section.
Current Trunk
-------------

- Binaryen.js now builds with BigInt support. The i64.const and f64.const_bits
functions now take BigInt parameters rather than pairs of numbers.

v121
----

Expand Down
17 changes: 3 additions & 14 deletions CMakeLists.txt
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Expand Up @@ -326,20 +326,9 @@ else()
endif()

if(EMSCRIPTEN)
# Note: to debug with DWARF you will usually want to enable BIGINT support, as
# that helps avoid running Binaryen on the wasm after link. Binaryen's DWARF
# rewriting has known limitations, so avoiding it during link is recommended
# where possible (like local debugging).
#
# Note that this is debug info for Binaryen itself, that is, when you are
# debugging Binaryen source code. This flag has no impact on what Binaryen
# does when run on wasm files.
option(ENABLE_BIGINT "Enable wasm BigInt support" OFF)
if(ENABLE_BIGINT)
add_link_flag("-sWASM_BIGINT")
else()
add_link_flag("-sWASM_BIGINT=0")
endif()
# This is now on by default in Emscripten, but set it explicitly to continue
# building correctly on older Emscriptens.
add_link_flag("-sWASM_BIGINT")

if("${CMAKE_BUILD_TYPE}" MATCHES "Release")
# Extra check that cmake has set -O3 in its release flags.
Expand Down
8 changes: 4 additions & 4 deletions src/js/binaryen.js-post.js
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Expand Up @@ -1049,10 +1049,10 @@ function wrapModule(module, self = {}) {
'store32'(offset, align, ptr, value, name) {
return Module['_BinaryenStore'](module, 4, offset, align, ptr, value, Module['i64'], strToStack(name));
},
'const'(x, y) {
'const'(x) {
return preserveStack(() => {
const tempLiteral = stackAlloc(sizeOfLiteral);
Module['_BinaryenLiteralInt64'](tempLiteral, x, y);
Module['_BinaryenLiteralInt64'](tempLiteral, BigInt(x));
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@kripken kripken Dec 20, 2024 •
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What do you think about making this backwards compatible? We could support (i32, undefined), (i32, i32), and (BigInt, undefined) with this code:

        // Convert to a BigInt. We support (x, undefined) where x is either a
        // BigInt or not, and also (x, y) where neither is a BigInt and y is the
        // higher bits.
        if (typeof x !== 'bigint') {
          x = BigInt(x || 0) | (BigInt(y || 0) << 32n);
        }

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A small code size cost seems reasonable to me here, personally. And it is nice to write binaryen.i64.const(42) and not need to remember 42n each time.

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binaryen.i64.const(42) already works because of the explicit BigInt(x) conversion here. Except for compatibility, I don't think there's much benefit to supporting the two-argument version. How much do we value compatibility here? Would we have a deprecation plan, or would we support the two-argument version indefinitely?

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I think compatibility makes sense: there are users that are creating i64s with two arguments, and I don't see a strong reason to break them, given the burden on supporting the old format is minimal.

return Module['_BinaryenConst'](module, tempLiteral);
});
},
Expand Down Expand Up @@ -1438,10 +1438,10 @@ function wrapModule(module, self = {}) {
return Module['_BinaryenConst'](module, tempLiteral);
});
},
'const_bits'(x, y) {
'const_bits'(x) {
return preserveStack(() => {
const tempLiteral = stackAlloc(sizeOfLiteral);
Module['_BinaryenLiteralFloat64Bits'](tempLiteral, x, y);
Module['_BinaryenLiteralFloat64Bits'](tempLiteral, BigInt(x));
return Module['_BinaryenConst'](module, tempLiteral);
});
},
Expand Down
62 changes: 31 additions & 31 deletions test/binaryen.js/kitchen-sink.js
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Expand Up @@ -24,8 +24,8 @@ function makeFloat32(x) {
return module.f32.const(x);
}

function makeInt64(l, h) {
return module.i64.const(l, h);
function makeInt64(x) {
return module.i64.const(x);
}

function makeFloat64(x) {
Expand Down Expand Up @@ -214,7 +214,7 @@ function test_core() {
constF32 = module.f32.const(3.14),
constF64 = module.f64.const(2.1828),
constF32Bits = module.f32.const_bits(0xffff1234),
constF64Bits = module.f64.const_bits(0x5678abcd, 0xffff1234);
constF64Bits = module.f64.const_bits(0xffff12345678ABCDn)

var iIfF = binaryen.createType([binaryen.i32, binaryen.i64, binaryen.f32, binaryen.f64])

Expand All @@ -229,7 +229,7 @@ function test_core() {
var valueList = [
// Unary
module.i32.clz(module.i32.const(-10)),
module.i64.ctz(module.i64.const(-22, -1)),
module.i64.ctz(module.i64.const(295147905179352825834n)),
module.i32.popcnt(module.i32.const(-10)),
module.f32.neg(module.f32.const(-33.612)),
module.f64.abs(module.f64.const(-9005.841)),
Expand All @@ -241,7 +241,7 @@ function test_core() {
module.i32.eqz(module.i32.const(-10)),
module.i64.extend_s(module.i32.const(-10)),
module.i64.extend_u(module.i32.const(-10)),
module.i32.wrap(module.i64.const(-22, -1)),
module.i32.wrap(module.i64.const(295147905179352825834n)),
module.i32.trunc_s.f32(module.f32.const(-33.612)),
module.i64.trunc_s.f32(module.f32.const(-33.612)),
module.i32.trunc_u.f32(module.f32.const(-33.612)),
Expand All @@ -264,18 +264,18 @@ function test_core() {
module.f64.convert_s.i32(module.i32.const(-10)),
module.f32.convert_u.i32(module.i32.const(-10)),
module.f64.convert_u.i32(module.i32.const(-10)),
module.f32.convert_s.i64(module.i64.const(-22, -1)),
module.f64.convert_s.i64(module.i64.const(-22, -1)),
module.f32.convert_u.i64(module.i64.const(-22, -1)),
module.f64.convert_u.i64(module.i64.const(-22, -1)),
module.f32.convert_s.i64(module.i64.const(295147905179352825834n)),
module.f64.convert_s.i64(module.i64.const(295147905179352825834n)),
module.f32.convert_u.i64(module.i64.const(295147905179352825834n)),
module.f64.convert_u.i64(module.i64.const(295147905179352825834n)),
module.f64.promote(module.f32.const(-33.612)),
module.f32.demote(module.f64.const(-9005.841)),
module.f32.reinterpret(module.i32.const(-10)),
module.f64.reinterpret(module.i64.const(-22, -1)),
module.f64.reinterpret(module.i64.const(295147905179352825834n)),
module.i8x16.splat(module.i32.const(42)),
module.i16x8.splat(module.i32.const(42)),
module.i32x4.splat(module.i32.const(42)),
module.i64x2.splat(module.i64.const(123, 456)),
module.i64x2.splat(module.i64.const(1958505087099n)),
module.f32x4.splat(module.f32.const(42.0)),
module.f64x2.splat(module.f64.const(42.0)),
module.v128.not(module.v128.const(v128_bytes)),
Expand Down Expand Up @@ -333,31 +333,31 @@ function test_core() {
module.i32.add(module.i32.const(-10), module.i32.const(-11)),
module.f64.sub(module.f64.const(-9005.841), module.f64.const(-9007.333)),
module.i32.div_s(module.i32.const(-10), module.i32.const(-11)),
module.i64.div_u(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.rem_s(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.div_u(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.i64.rem_s(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.i32.rem_u(module.i32.const(-10), module.i32.const(-11)),
module.i32.and(module.i32.const(-10), module.i32.const(-11)),
module.i64.or(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.or(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.i32.xor(module.i32.const(-10), module.i32.const(-11)),
module.i64.shl(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.shr_u(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.shl(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.i64.shr_u(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.i32.shr_s(module.i32.const(-10), module.i32.const(-11)),
module.i32.rotl(module.i32.const(-10), module.i32.const(-11)),
module.i64.rotr(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.rotr(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.f32.div(module.f32.const(-33.612), module.f32.const(-62.5)),
module.f64.copysign(module.f64.const(-9005.841), module.f64.const(-9007.333)),
module.f32.min(module.f32.const(-33.612), module.f32.const(-62.5)),
module.f64.max(module.f64.const(-9005.841), module.f64.const(-9007.333)),
module.i32.eq(module.i32.const(-10), module.i32.const(-11)),
module.f32.ne(module.f32.const(-33.612), module.f32.const(-62.5)),
module.i32.lt_s(module.i32.const(-10), module.i32.const(-11)),
module.i64.lt_u(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.le_s(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.lt_u(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.i64.le_s(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.i32.le_u(module.i32.const(-10), module.i32.const(-11)),
module.i64.gt_s(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.gt_s(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.i32.gt_u(module.i32.const(-10), module.i32.const(-11)),
module.i32.ge_s(module.i32.const(-10), module.i32.const(-11)),
module.i64.ge_u(module.i64.const(-22, 0), module.i64.const(-23, 0)),
module.i64.ge_u(module.i64.const(4294967274n), module.i64.const(4294967273n)),
module.f32.lt(module.f32.const(-33.612), module.f32.const(-62.5)),
module.f64.le(module.f64.const(-9005.841), module.f64.const(-9007.333)),
module.f64.gt(module.f64.const(-9005.841), module.f64.const(-9007.333)),
Expand Down Expand Up @@ -502,7 +502,7 @@ function test_core() {
module.i16x8.replace_lane(module.v128.const(v128_bytes), 1, module.i32.const(42)),
module.i8x16.replace_lane(module.v128.const(v128_bytes), 1, module.i32.const(42)),
module.i32x4.replace_lane(module.v128.const(v128_bytes), 1, module.i32.const(42)),
module.i64x2.replace_lane(module.v128.const(v128_bytes), 1, module.i64.const(42, 43)),
module.i64x2.replace_lane(module.v128.const(v128_bytes), 1, module.i64.const(184683593770n)),
module.f32x4.replace_lane(module.v128.const(v128_bytes), 1, module.f32.const(42)),
module.f64x2.replace_lane(module.v128.const(v128_bytes), 1, module.f64.const(42)),
// SIMD shift
Expand Down Expand Up @@ -569,15 +569,15 @@ function test_core() {
module.switch([ "the-value" ], "the-value", temp8, temp9),
module.switch([ "the-nothing" ], "the-nothing", makeInt32(2)),
module.i32.eqz( // check the output type of the call node
module.call("kitchen()sinker", [ makeInt32(13), makeInt64(37, 0), makeFloat32(1.3), makeFloat64(3.7) ], binaryen.i32)
module.call("kitchen()sinker", [ makeInt32(13), makeInt64(37), makeFloat32(1.3), makeFloat64(3.7) ], binaryen.i32)
),
module.i32.eqz( // check the output type of the call node
module.i32.trunc_s.f32(
module.call("an-imported", [ makeInt32(13), makeFloat64(3.7) ], binaryen.f32)
)
),
module.i32.eqz( // check the output type of the call node
module.call_indirect("t0", makeInt32(2449), [ makeInt32(13), makeInt64(37, 0), makeFloat32(1.3), makeFloat64(3.7) ], iIfF, binaryen.i32)
module.call_indirect("t0", makeInt32(2449), [ makeInt32(13), makeInt64(37), makeFloat32(1.3), makeFloat64(3.7) ], iIfF, binaryen.i32)
),
module.drop(module.local.get(0, binaryen.i32)),
module.local.set(0, makeInt32(101)),
Expand All @@ -591,8 +591,8 @@ function test_core() {
module.select(temp10, temp11, temp12),
module.return(makeInt32(1337)),
// Tail Call
module.return_call("kitchen()sinker", [ makeInt32(13), makeInt64(37, 0), makeFloat32(1.3), makeFloat64(3.7) ], binaryen.i32),
module.return_call_indirect("t0", makeInt32(2449), [ makeInt32(13), makeInt64(37, 0), makeFloat32(1.3), makeFloat64(3.7) ], iIfF, binaryen.i32),
module.return_call("kitchen()sinker", [ makeInt32(13), makeInt64(37), makeFloat32(1.3), makeFloat64(3.7) ], binaryen.i32),
module.return_call_indirect("t0", makeInt32(2449), [ makeInt32(13), makeInt64(37), makeFloat32(1.3), makeFloat64(3.7) ], iIfF, binaryen.i32),

// Reference types
module.ref.is_null(module.ref.null(binaryen.externref)),
Expand Down Expand Up @@ -636,11 +636,11 @@ function test_core() {

// Tuples
module.tuple.make(
[ makeInt32(13), makeInt64(37, 0), makeFloat32(1.3), makeFloat64(3.7) ]
[ makeInt32(13), makeInt64(37), makeFloat32(1.3), makeFloat64(3.7) ]
),
module.tuple.extract(
module.tuple.make(
[ makeInt32(13), makeInt64(37, 0), makeFloat32(1.3), makeFloat64(3.7) ]
[ makeInt32(13), makeInt64(37), makeFloat32(1.3), makeFloat64(3.7) ]
), 2
),

Expand Down Expand Up @@ -695,11 +695,11 @@ function test_core() {
}

console.log("getExpressionInfo(i32.const)=" + JSON.stringify(binaryen.getExpressionInfo(module.i32.const(5))));
console.log("getExpressionInfo(i64.const)=" + JSON.stringify(binaryen.getExpressionInfo(module.i64.const(6, 7))));
console.log("getExpressionInfo(i64.const)=" + JSON.stringify(binaryen.getExpressionInfo(module.i64.const(30064771078n))));
console.log("getExpressionInfo(f32.const)=" + JSON.stringify(binaryen.getExpressionInfo(module.f32.const(8.5))));
console.log("getExpressionInfo(f64.const)=" + JSON.stringify(binaryen.getExpressionInfo(module.f64.const(9.5))));
var elements = binaryen.getExpressionInfo(
module.tuple.make([ makeInt32(13), makeInt64(37, 0), makeFloat32(1.3), makeFloat64(3.7) ])
module.tuple.make([ makeInt32(13), makeInt64(37), makeFloat32(1.3), makeFloat64(3.7) ])
).operands;
for (var i = 0; i < elements.length; i++) {
console.log("getExpressionInfo(tuple[" + i + "])=" + JSON.stringify(binaryen.getExpressionInfo(elements[i])));
Expand Down Expand Up @@ -1018,7 +1018,7 @@ function test_nonvalid() {
module = new binaryen.Module();

var func = module.addFunction("func", binaryen.none, binaryen.none, [ binaryen.i32 ],
module.local.set(0, makeInt64(1234, 0)) // wrong type!
module.local.set(0, makeInt64(1234)) // wrong type!
);

console.log(module.emitText());
Expand Down
4 changes: 2 additions & 2 deletions test/binaryen.js/validation_errors.js
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Expand Up @@ -7,7 +7,7 @@
)
])
);
mod.addExport("test", func);
mod.addExport("test", "test");
console.log(mod.validate())
})();

Expand All @@ -20,6 +20,6 @@
)
])
);
mod.addFunctionExport("test", "test", func);
mod.addFunctionExport("test", "test");
console.log(mod.validate())
})();
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