Stream: git-wasmtime

Topic: wasmtime / Issue #2347 Cranelift: Specifically formatted ...

Wasmtime GitHub notifications bot (Nov 02 2020 at 13:45):

bkolobara labeled Issue #2347:

I have been stuck on a WASM module failing to compile under Wasmtime (0.20 and main branch) for some time now.
After a lot of trial and error I have managed to construct a minimal example that fails:

use wasmtime::{Config, Engine, Linker, Module, Store};

fn main() {
    let mut config = Config::new();
    config.wasm_reference_types(true);
    let engine = Engine::new(&config);
    let module = Module::new(
        &engine,
        "
        (module
            (type (;0;) (func (param externref) (result i32)))
            (func $test (type 0) (param externref) (result i32)
                (local i32)
                i32.const 0
                local.tee 1
                i32.const 0
                i32.eq
                if
                else
                end
                local.get 1
                local.get 0
                table.set 0
                local.get 1
            )
            (table (;0;) 4 externref)
            (export \"test\" (func $test))
        )",
    )
    .unwrap();

    let store = Store::new(&engine.clone());
    let linker = Linker::new(&store);

    let _instance = linker.instantiate(&module.clone()).unwrap();
}

From my understanding this should be valid WASM, and tools like wasm-validate --enable-all also don't complain about anything, but trying to run this code with RUST_BACKTRACE=1 cargo run results in:

    Finished dev [unoptimized + debuginfo] target(s) in 0.11s
     Running `target/debug/wasmer-bug-report`
thread 'main' panicked at 'block Insertion point not in the layout', /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.67.0/src/ir/layout.rs:401:9
stack backtrace:
   0: std::panicking::begin_panic
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:505:12
   1: cranelift_codegen::ir::layout::Layout::insert_block_after
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.67.0/src/ir/layout.rs:401:9
   2: cranelift_frontend::frontend::FunctionBuilder::insert_block_after
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-frontend-0.67.0/src/frontend.rs:233:9
   3: <wasmtime_cranelift::func_environ::FuncEnvironment as cranelift_wasm::environ::spec::FuncEnvironment>::translate_table_set
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-cranelift-0.20.0/src/func_environ.rs:668:17
   4: cranelift_wasm::code_translator::translate_operator
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/code_translator.rs:1413:13
   5: cranelift_wasm::func_translator::parse_function_body
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:235:9
   6: cranelift_wasm::func_translator::FuncTranslator::translate_from_reader
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:111:9
   7: cranelift_wasm::func_translator::FuncTranslator::translate
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:64:9
   8: <wasmtime_cranelift::Cranelift as wasmtime_environ::compilation::Compiler>::compile_function
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-cranelift-0.20.0/src/lib.rs:354:22
   9: wasmtime_jit::compiler::Compiler::compile::{{closure}}
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-jit-0.20.0/src/compiler.rs:128:17
  10: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &F>::call_mut
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:247:13
  11: core::iter::adapters::map_try_fold::{{closure}}
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:912:28
  12: core::iter::traits::iterator::Iterator::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs:1888:21
  13: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  14: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  15: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2078:13
  16: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  17: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2078:13
  18: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2093:9
  19: <rayon::iter::fold::FoldFolder<C,ID,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/fold.rs:158:20
  20: <rayon::iter::while_some::WhileSomeFolder<C> as rayon::iter::plumbing::Folder<core::option::Option<T>>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/while_some.rs:139:21
  21: <rayon::iter::map::MapFolder<C,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:248:21
  22: <rayon::iter::map::MapFolder<C,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:248:21
  23: rayon::iter::plumbing::Producer::fold_with
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:110:9
  24: rayon::iter::plumbing::bridge_producer_consumer::helper
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:438:13
  25: rayon::iter::plumbing::bridge_producer_consumer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:397:12
  26: <rayon::iter::plumbing::bridge::Callback<C> as rayon::iter::plumbing::ProducerCallback<I>>::callback
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:373:13
  27: <rayon::vec::Drain<T> as rayon::iter::IndexedParallelIterator>::with_producer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:130:13
  28: <rayon::vec::IntoIter<T> as rayon::iter::IndexedParallelIterator>::with_producer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:64:9
  29: rayon::iter::plumbing::bridge
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:357:12
  30: <rayon::vec::IntoIter<T> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:39:9
  31: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  32: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  33: <rayon::iter::while_some::WhileSome<I> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/while_some.rs:44:9
  34: <rayon::iter::fold::Fold<I,ID,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/fold.rs:59:9
  35: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  36: rayon::iter::reduce::reduce
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/reduce.rs:15:5
  37: rayon::iter::ParallelIterator::reduce
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/mod.rs:981:9
  38: rayon::iter::extend::collect
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/extend.rs:29:5
  39: rayon::iter::collect::<impl rayon::iter::ParallelExtend<T> for
[message truncated]

Wasmtime GitHub notifications bot (Nov 02 2020 at 13:45):

bkolobara opened Issue #2347:

I have been stuck on a WASM module failing to compile under Wasmtime (0.20 and main branch) for some time now.
After a lot of trial and error I have managed to construct a minimal example that fails:

use wasmtime::{Config, Engine, Linker, Module, Store};

fn main() {
    let mut config = Config::new();
    config.wasm_reference_types(true);
    let engine = Engine::new(&config);
    let module = Module::new(
        &engine,
        "
        (module
            (type (;0;) (func (param externref) (result i32)))
            (func $test (type 0) (param externref) (result i32)
                (local i32)
                i32.const 0
                local.tee 1
                i32.const 0
                i32.eq
                if
                else
                end
                local.get 1
                local.get 0
                table.set 0
                local.get 1
            )
            (table (;0;) 4 externref)
            (export \"test\" (func $test))
        )",
    )
    .unwrap();

    let store = Store::new(&engine.clone());
    let linker = Linker::new(&store);

    let _instance = linker.instantiate(&module.clone()).unwrap();
}

From my understanding this should be valid WASM, and tools like wasm-validate --enable-all also don't complain about anything, but trying to run this code with RUST_BACKTRACE=1 cargo run results in:

    Finished dev [unoptimized + debuginfo] target(s) in 0.11s
     Running `target/debug/wasmer-bug-report`
thread 'main' panicked at 'block Insertion point not in the layout', /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.67.0/src/ir/layout.rs:401:9
stack backtrace:
   0: std::panicking::begin_panic
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:505:12
   1: cranelift_codegen::ir::layout::Layout::insert_block_after
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.67.0/src/ir/layout.rs:401:9
   2: cranelift_frontend::frontend::FunctionBuilder::insert_block_after
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-frontend-0.67.0/src/frontend.rs:233:9
   3: <wasmtime_cranelift::func_environ::FuncEnvironment as cranelift_wasm::environ::spec::FuncEnvironment>::translate_table_set
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-cranelift-0.20.0/src/func_environ.rs:668:17
   4: cranelift_wasm::code_translator::translate_operator
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/code_translator.rs:1413:13
   5: cranelift_wasm::func_translator::parse_function_body
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:235:9
   6: cranelift_wasm::func_translator::FuncTranslator::translate_from_reader
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:111:9
   7: cranelift_wasm::func_translator::FuncTranslator::translate
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:64:9
   8: <wasmtime_cranelift::Cranelift as wasmtime_environ::compilation::Compiler>::compile_function
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-cranelift-0.20.0/src/lib.rs:354:22
   9: wasmtime_jit::compiler::Compiler::compile::{{closure}}
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-jit-0.20.0/src/compiler.rs:128:17
  10: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &F>::call_mut
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:247:13
  11: core::iter::adapters::map_try_fold::{{closure}}
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:912:28
  12: core::iter::traits::iterator::Iterator::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs:1888:21
  13: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  14: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  15: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2078:13
  16: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  17: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2078:13
  18: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2093:9
  19: <rayon::iter::fold::FoldFolder<C,ID,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/fold.rs:158:20
  20: <rayon::iter::while_some::WhileSomeFolder<C> as rayon::iter::plumbing::Folder<core::option::Option<T>>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/while_some.rs:139:21
  21: <rayon::iter::map::MapFolder<C,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:248:21
  22: <rayon::iter::map::MapFolder<C,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:248:21
  23: rayon::iter::plumbing::Producer::fold_with
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:110:9
  24: rayon::iter::plumbing::bridge_producer_consumer::helper
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:438:13
  25: rayon::iter::plumbing::bridge_producer_consumer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:397:12
  26: <rayon::iter::plumbing::bridge::Callback<C> as rayon::iter::plumbing::ProducerCallback<I>>::callback
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:373:13
  27: <rayon::vec::Drain<T> as rayon::iter::IndexedParallelIterator>::with_producer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:130:13
  28: <rayon::vec::IntoIter<T> as rayon::iter::IndexedParallelIterator>::with_producer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:64:9
  29: rayon::iter::plumbing::bridge
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:357:12
  30: <rayon::vec::IntoIter<T> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:39:9
  31: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  32: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  33: <rayon::iter::while_some::WhileSome<I> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/while_some.rs:44:9
  34: <rayon::iter::fold::Fold<I,ID,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/fold.rs:59:9
  35: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  36: rayon::iter::reduce::reduce
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/reduce.rs:15:5
  37: rayon::iter::ParallelIterator::reduce
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/mod.rs:981:9
  38: rayon::iter::extend::collect
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/extend.rs:29:5
  39: rayon::iter::collect::<impl rayon::iter::ParallelExtend<T> for a
[message truncated]

Wasmtime GitHub notifications bot (Nov 02 2020 at 13:45):

bkolobara labeled Issue #2347:

I have been stuck on a WASM module failing to compile under Wasmtime (0.20 and main branch) for some time now.
After a lot of trial and error I have managed to construct a minimal example that fails:

use wasmtime::{Config, Engine, Linker, Module, Store};

fn main() {
    let mut config = Config::new();
    config.wasm_reference_types(true);
    let engine = Engine::new(&config);
    let module = Module::new(
        &engine,
        "
        (module
            (type (;0;) (func (param externref) (result i32)))
            (func $test (type 0) (param externref) (result i32)
                (local i32)
                i32.const 0
                local.tee 1
                i32.const 0
                i32.eq
                if
                else
                end
                local.get 1
                local.get 0
                table.set 0
                local.get 1
            )
            (table (;0;) 4 externref)
            (export \"test\" (func $test))
        )",
    )
    .unwrap();

    let store = Store::new(&engine.clone());
    let linker = Linker::new(&store);

    let _instance = linker.instantiate(&module.clone()).unwrap();
}

From my understanding this should be valid WASM, and tools like wasm-validate --enable-all also don't complain about anything, but trying to run this code with RUST_BACKTRACE=1 cargo run results in:

    Finished dev [unoptimized + debuginfo] target(s) in 0.11s
     Running `target/debug/wasmer-bug-report`
thread 'main' panicked at 'block Insertion point not in the layout', /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.67.0/src/ir/layout.rs:401:9
stack backtrace:
   0: std::panicking::begin_panic
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:505:12
   1: cranelift_codegen::ir::layout::Layout::insert_block_after
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.67.0/src/ir/layout.rs:401:9
   2: cranelift_frontend::frontend::FunctionBuilder::insert_block_after
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-frontend-0.67.0/src/frontend.rs:233:9
   3: <wasmtime_cranelift::func_environ::FuncEnvironment as cranelift_wasm::environ::spec::FuncEnvironment>::translate_table_set
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-cranelift-0.20.0/src/func_environ.rs:668:17
   4: cranelift_wasm::code_translator::translate_operator
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/code_translator.rs:1413:13
   5: cranelift_wasm::func_translator::parse_function_body
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:235:9
   6: cranelift_wasm::func_translator::FuncTranslator::translate_from_reader
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:111:9
   7: cranelift_wasm::func_translator::FuncTranslator::translate
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:64:9
   8: <wasmtime_cranelift::Cranelift as wasmtime_environ::compilation::Compiler>::compile_function
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-cranelift-0.20.0/src/lib.rs:354:22
   9: wasmtime_jit::compiler::Compiler::compile::{{closure}}
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-jit-0.20.0/src/compiler.rs:128:17
  10: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &F>::call_mut
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:247:13
  11: core::iter::adapters::map_try_fold::{{closure}}
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:912:28
  12: core::iter::traits::iterator::Iterator::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs:1888:21
  13: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  14: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  15: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2078:13
  16: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  17: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2078:13
  18: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2093:9
  19: <rayon::iter::fold::FoldFolder<C,ID,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/fold.rs:158:20
  20: <rayon::iter::while_some::WhileSomeFolder<C> as rayon::iter::plumbing::Folder<core::option::Option<T>>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/while_some.rs:139:21
  21: <rayon::iter::map::MapFolder<C,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:248:21
  22: <rayon::iter::map::MapFolder<C,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:248:21
  23: rayon::iter::plumbing::Producer::fold_with
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:110:9
  24: rayon::iter::plumbing::bridge_producer_consumer::helper
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:438:13
  25: rayon::iter::plumbing::bridge_producer_consumer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:397:12
  26: <rayon::iter::plumbing::bridge::Callback<C> as rayon::iter::plumbing::ProducerCallback<I>>::callback
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:373:13
  27: <rayon::vec::Drain<T> as rayon::iter::IndexedParallelIterator>::with_producer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:130:13
  28: <rayon::vec::IntoIter<T> as rayon::iter::IndexedParallelIterator>::with_producer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:64:9
  29: rayon::iter::plumbing::bridge
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:357:12
  30: <rayon::vec::IntoIter<T> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:39:9
  31: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  32: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  33: <rayon::iter::while_some::WhileSome<I> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/while_some.rs:44:9
  34: <rayon::iter::fold::Fold<I,ID,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/fold.rs:59:9
  35: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  36: rayon::iter::reduce::reduce
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/reduce.rs:15:5
  37: rayon::iter::ParallelIterator::reduce
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/mod.rs:981:9
  38: rayon::iter::extend::collect
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/extend.rs:29:5
  39: rayon::iter::collect::<impl rayon::iter::ParallelExtend<T> for
[message truncated]

Wasmtime GitHub notifications bot (Nov 02 2020 at 14:26):

tschneidereit commented on Issue #2347:

Thank you for reporting this, @bkolobara!

@alexcrichton or @fitzgen, can you take a look?

Wasmtime GitHub notifications bot (Nov 02 2020 at 15:45):

alexcrichton commented on Issue #2347:

Thanks for the report! I've minimized this a bit more as

(module
  (func $test (param i32) (result externref)
        i32.const 0
        if
        else
        end
        local.get 0
        table.get 0
  )
  (table 4 externref)
  (export "test" (func $test))
)

and it can reproduce with the CLI by just feeding in the test-case. I've got a fix at https://github.com/bytecodealliance/wasmtime/pull/2350 for this I believe.

Wasmtime GitHub notifications bot (Nov 02 2020 at 23:53):

alexcrichton closed Issue #2347:

I have been stuck on a WASM module failing to compile under Wasmtime (0.20 and main branch) for some time now.
After a lot of trial and error I have managed to construct a minimal example that fails:

use wasmtime::{Config, Engine, Linker, Module, Store};

fn main() {
    let mut config = Config::new();
    config.wasm_reference_types(true);
    let engine = Engine::new(&config);
    let module = Module::new(
        &engine,
        "
        (module
            (type (;0;) (func (param externref) (result i32)))
            (func $test (type 0) (param externref) (result i32)
                (local i32)
                i32.const 0
                local.tee 1
                i32.const 0
                i32.eq
                if
                else
                end
                local.get 1
                local.get 0
                table.set 0
                local.get 1
            )
            (table (;0;) 4 externref)
            (export \"test\" (func $test))
        )",
    )
    .unwrap();

    let store = Store::new(&engine.clone());
    let linker = Linker::new(&store);

    let _instance = linker.instantiate(&module.clone()).unwrap();
}

From my understanding this should be valid WASM, and tools like wasm-validate --enable-all also don't complain about anything, but trying to run this code with RUST_BACKTRACE=1 cargo run results in:

    Finished dev [unoptimized + debuginfo] target(s) in 0.11s
     Running `target/debug/wasmer-bug-report`
thread 'main' panicked at 'block Insertion point not in the layout', /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.67.0/src/ir/layout.rs:401:9
stack backtrace:
   0: std::panicking::begin_panic
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:505:12
   1: cranelift_codegen::ir::layout::Layout::insert_block_after
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.67.0/src/ir/layout.rs:401:9
   2: cranelift_frontend::frontend::FunctionBuilder::insert_block_after
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-frontend-0.67.0/src/frontend.rs:233:9
   3: <wasmtime_cranelift::func_environ::FuncEnvironment as cranelift_wasm::environ::spec::FuncEnvironment>::translate_table_set
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-cranelift-0.20.0/src/func_environ.rs:668:17
   4: cranelift_wasm::code_translator::translate_operator
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/code_translator.rs:1413:13
   5: cranelift_wasm::func_translator::parse_function_body
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:235:9
   6: cranelift_wasm::func_translator::FuncTranslator::translate_from_reader
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:111:9
   7: cranelift_wasm::func_translator::FuncTranslator::translate
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.67.0/src/func_translator.rs:64:9
   8: <wasmtime_cranelift::Cranelift as wasmtime_environ::compilation::Compiler>::compile_function
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-cranelift-0.20.0/src/lib.rs:354:22
   9: wasmtime_jit::compiler::Compiler::compile::{{closure}}
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-jit-0.20.0/src/compiler.rs:128:17
  10: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &F>::call_mut
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:247:13
  11: core::iter::adapters::map_try_fold::{{closure}}
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:912:28
  12: core::iter::traits::iterator::Iterator::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs:1888:21
  13: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  14: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  15: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2078:13
  16: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:938:9
  17: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::try_fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2078:13
  18: <core::iter::adapters::TakeWhile<I,P> as core::iter::traits::iterator::Iterator>::fold
             at /Users/bkolobara/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/adapters/mod.rs:2093:9
  19: <rayon::iter::fold::FoldFolder<C,ID,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/fold.rs:158:20
  20: <rayon::iter::while_some::WhileSomeFolder<C> as rayon::iter::plumbing::Folder<core::option::Option<T>>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/while_some.rs:139:21
  21: <rayon::iter::map::MapFolder<C,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:248:21
  22: <rayon::iter::map::MapFolder<C,F> as rayon::iter::plumbing::Folder<T>>::consume_iter
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:248:21
  23: rayon::iter::plumbing::Producer::fold_with
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:110:9
  24: rayon::iter::plumbing::bridge_producer_consumer::helper
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:438:13
  25: rayon::iter::plumbing::bridge_producer_consumer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:397:12
  26: <rayon::iter::plumbing::bridge::Callback<C> as rayon::iter::plumbing::ProducerCallback<I>>::callback
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:373:13
  27: <rayon::vec::Drain<T> as rayon::iter::IndexedParallelIterator>::with_producer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:130:13
  28: <rayon::vec::IntoIter<T> as rayon::iter::IndexedParallelIterator>::with_producer
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:64:9
  29: rayon::iter::plumbing::bridge
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/plumbing/mod.rs:357:12
  30: <rayon::vec::IntoIter<T> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/vec.rs:39:9
  31: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  32: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  33: <rayon::iter::while_some::WhileSome<I> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/while_some.rs:44:9
  34: <rayon::iter::fold::Fold<I,ID,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/fold.rs:59:9
  35: <rayon::iter::map::Map<I,F> as rayon::iter::ParallelIterator>::drive_unindexed
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/map.rs:49:9
  36: rayon::iter::reduce::reduce
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/reduce.rs:15:5
  37: rayon::iter::ParallelIterator::reduce
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/mod.rs:981:9
  38: rayon::iter::extend::collect
             at /Users/bkolobara/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.4.1/src/iter/extend.rs:29:5
  39: rayon::iter::collect::<impl rayon::iter::ParallelExtend<T> fo
[message truncated]