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rust/compiler/rustc_codegen_ssa
Jacob Pratt cb78bc4dd4 Rollup merge of #151771 - hoodmane:wasm-double-panic, r=bjorn3
Fix: On wasm targets, call `panic_in_cleanup` if panic occurs in cleanup

Previously this was not correctly implemented. Each funclet may need its own terminate block, so this changes the `terminate_block` into a `terminate_blocks` `IndexVec` which can have a terminate_block for each funclet. We key on the first basic block of the funclet -- in particular, this is the start block for the old case of the top level terminate function.

I also fixed the `terminate` handler to not be invoked when a foreign exception is raised, mimicking the behavior from msvc. On wasm, in order to avoid generating a `catch_all` we need to call `llvm.wasm.get.exception` and `llvm.wasm.get.ehselector`.
2026-02-25 21:42:53 -05:00
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