Returns whether this compiler is known to fail for the provided `TestConfig`. This function will determine if the configuration of the test provided is known to guarantee fail. This effectively tracks the proposal support for each compiler backend/runtime and tests whether `config` enables or disables features that aren't supported. Note that this is closely aligned with `Config::compiler_panick
(&self, config: &TestConfig)
| 384 | /// Note that this is closely aligned with |
| 385 | /// `Config::compiler_panicking_wasm_features`. |
| 386 | pub fn should_fail(&self, config: &TestConfig) -> bool { |
| 387 | match self { |
| 388 | Compiler::CraneliftNative => { |
| 389 | if config.legacy_exceptions() { |
| 390 | return true; |
| 391 | } |
| 392 | |
| 393 | // Stack-switching is only implemented on x86_64 for unix |
| 394 | // platforms right now. |
| 395 | if config.stack_switching() && !(cfg!(target_arch = "x86_64") && cfg!(unix)) { |
| 396 | return true; |
| 397 | } |
| 398 | |
| 399 | false |
| 400 | } |
| 401 | |
| 402 | Compiler::Winch => { |
| 403 | if config.gc() |
| 404 | || config.tail_call() |
| 405 | || config.function_references() |
| 406 | || config.gc() |
| 407 | || config.relaxed_simd() |
| 408 | || config.gc_types() |
| 409 | || config.exceptions() |
| 410 | || config.legacy_exceptions() |
| 411 | || config.stack_switching() |
| 412 | || config.legacy_exceptions() |
| 413 | || config.component_model_async() |
| 414 | { |
| 415 | return true; |
| 416 | } |
| 417 | |
| 418 | if cfg!(target_arch = "aarch64") { |
| 419 | return (config.simd() && !config.spec_test()) || config.threads(); |
| 420 | } |
| 421 | |
| 422 | !cfg!(target_arch = "x86_64") |
| 423 | } |
| 424 | |
| 425 | Compiler::CraneliftPulley => { |
| 426 | config.threads() || config.legacy_exceptions() || config.stack_switching() |
| 427 | } |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | /// Returns whether this compiler configuration supports the current host |
| 432 | /// architecture. |