60 lines
1.2 KiB
Rust
60 lines
1.2 KiB
Rust
//@ only-wasm32
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//@ compile-flags: -C panic=unwind
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#![crate_type = "lib"]
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#![feature(core_intrinsics)]
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extern "C-unwind" {
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fn may_panic();
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}
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extern "C" {
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fn log_number(number: usize);
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}
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struct LogOnDrop;
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impl Drop for LogOnDrop {
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fn drop(&mut self) {
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unsafe {
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log_number(0);
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}
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}
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}
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// CHECK-LABEL: @test_cleanup() {{.*}} @__gxx_wasm_personality_v0
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#[no_mangle]
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pub fn test_cleanup() {
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let _log_on_drop = LogOnDrop;
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unsafe {
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may_panic();
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}
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// CHECK-NOT: call
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// CHECK: invoke void @may_panic()
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// CHECK: %cleanuppad = cleanuppad within none []
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}
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// CHECK-LABEL: @test_rtry() {{.*}} @__gxx_wasm_personality_v0
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#[no_mangle]
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pub fn test_rtry() {
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unsafe {
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core::intrinsics::catch_unwind(
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may_panic();
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},
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core::ptr::null_mut(),
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|data, exception| {
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log_number(data as usize);
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log_number(exception as usize);
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},
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);
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}
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// CHECK-NOT: call
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// CHECK: invoke void @may_panic()
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// CHECK: {{.*}} = catchswitch within none [label {{.*}}] unwind to caller
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// CHECK: {{.*}} = catchpad within {{.*}} [ptr null]
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// CHECK: catchret
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}
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