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fix for bugged setjmp/longjmp on windows/llvm

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Folkert 2024-01-07 23:04:11 +01:00
parent 08ab7996a0
commit b9b19d6054
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4 changed files with 105 additions and 7 deletions
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11
crates/compiler/gen_llvm/src/llvm/externs.rs
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@ -315,11 +315,18 @@ pub fn add_sjlj_roc_panic(env: &Env<'_, '_, '_>) {
pub fn build_longjmp_call(env: &Env) {
let jmp_buf = get_sjlj_buffer(env);
if cfg!(target_arch = "aarch64") {
// Call the Zig-linked longjmp: `void longjmp(i32*, i32)`
if env.target_info.architecture == roc_target::Architecture::Aarch64 {
// Due to https://github.com/roc-lang/roc/issues/2965, we use a setjmp we linked in from Zig
let tag = env.context.i32_type().const_int(1, false);
let _call =
call_void_bitcode_fn(env, &[jmp_buf.into(), tag.into()], bitcode::UTILS_LONGJMP);
} else if env.target_info.operating_system == roc_target::OperatingSystem::Windows {
let tag = env.context.i32_type().const_int(1, false);
let _call = call_void_bitcode_fn(
env,
&[jmp_buf.into(), tag.into()],
bitcode::UTILS_WINDOWS_LONGJMP,
);
} else {
// Call the LLVM-intrinsic longjmp: `void @llvm.eh.sjlj.longjmp(i8* %setjmp_buf)`
let jmp_buf_i8p = env.builder.new_build_pointer_cast(