Make relevant Wasm target features target modifiers

Author: daxpedda

compiler/rustc_target/src/target_features.rs

@@ -773,9 +773,9 @@ static RISCV_FEATURES: &[(&str, Stability, ImpliedFeatures, TargetModifier)] = &
 
 static WASM_FEATURES: &[(&str, Stability, ImpliedFeatures, TargetModifier)] = &[
     // tidy-alphabetical-start
-    ("atomics", Unstable(sym::wasm_target_feature), &[], false),
+    ("atomics", Unstable(sym::wasm_target_feature), &[], true),
     ("bulk-memory", Stable, &[], false),
-    ("exception-handling", Unstable(sym::wasm_target_feature), &[], false),
+    ("exception-handling", Unstable(sym::wasm_target_feature), &[], true),
     ("extended-const", Stable, &[], false),
     ("multivalue", Stable, &[], false),
     ("mutable-globals", Stable, &[], false),

src/tools/tidy/src/style.rs

@@ -215,7 +215,7 @@ fn should_ignore(line: &str) -> bool {
     // For `ui_test`-style UI test directives, also ignore
     // - `//@[rev] compile-flags`
     // - `//@[rev] normalize-stderr`
-        || static_regex!("\\s*//@(\\[.*\\]) (compile-flags|normalize-stderr|error-pattern).*")
+        || static_regex!("\\s*//@ *(\\[.*\\]) (compile-flags|normalize-stderr|error-pattern).*")
             .is_match(line)
         // Matching for rustdoc tests commands.
         // It allows to prevent them emitting warnings like `line longer than 100 chars`.

tests/assembly-llvm/wasm_exceptions.rs

@@ -1,6 +1,6 @@
 //@ only-wasm32
 //@ assembly-output: emit-asm
-//@ compile-flags: -C target-feature=+exception-handling
+//@ compile-flags: -C target-feature=+exception-handling -C unsafe-allow-abi-mismatch=target-feature
 //@ compile-flags: -C panic=unwind
 
 #![crate_type = "lib"]

tests/codegen-llvm/unwind-abis/c-unwind-abi-panic-abort.rs

@@ -3,7 +3,7 @@
 //@ [NONWASM] ignore-wasm32
 //@ [WASM] only-wasm32
 //@ [WASMEXN] only-wasm32
-//@ [WASMEXN] compile-flags: -Ctarget-feature=+exception-handling
+//@ [WASMEXN] compile-flags: -Ctarget-feature=+exception-handling -C unsafe-allow-abi-mismatch=target-feature
 
 // Test that `nounwind` attributes are also applied to extern `C-unwind` Rust functions
 // when the code is compiled with `panic=abort`.

tests/codegen-llvm/unwind-and-panic-abort.rs

@@ -3,7 +3,7 @@
 //@ [NONWASM] ignore-wasm32
 //@ [WASM] only-wasm32
 //@ [WASMEXN] only-wasm32
-//@ [WASMEXN] compile-flags: -Ctarget-feature=+exception-handling
+//@ [WASMEXN] compile-flags: -Ctarget-feature=+exception-handling -C unsafe-allow-abi-mismatch=target-feature
 
 #![crate_type = "lib"]
 

tests/run-make/wasm-exceptions-nostd/rmake.rs

@@ -12,6 +12,7 @@ fn main() {
         .panic("unwind")
         .arg("-Cllvm-args=-wasm-enable-eh")
         .arg("-Ctarget-feature=+exception-handling")
+        .arg("-Cunsafe-allow-abi-mismatch=target-feature")
         .run();
 
     cmd(&env_var("NODE")).arg("verify.mjs").arg("lib.wasm").run();