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Pass roc_panic msg by ref on 32 bit plats

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Ayaz Hafiz 2022-11-22 17:34:42 -06:00
parent 291615072b
commit f3a03ef6eb
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1 changed files with 24 additions and 4 deletions
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28
crates/compiler/gen_llvm/src/llvm/build.rs
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@ -346,16 +346,36 @@ impl<'a, 'ctx, 'env> Env<'a, 'ctx, 'env> {
)
}
pub fn call_panic(&self, message: BasicValueEnum<'ctx>, tag_id: PanicTagId) {
pub fn call_panic(
&self,
env: &Env<'a, 'ctx, 'env>,
message: BasicValueEnum<'ctx>,
tag_id: PanicTagId,
) {
let function = self.module.get_function("roc_panic").unwrap();
let tag_id = self
.context
.i32_type()
.const_int(tag_id as u32 as u64, false);
let msg = match env.target_info.ptr_width() {
PtrWidth::Bytes4 => {
// we need to pass the message by reference, but we currently hold the value.
let alloca = env
.builder
.build_alloca(message.get_type(), "alloca_panic_msg");
env.builder.build_store(alloca, message);
alloca.into()
}
PtrWidth::Bytes8 => {
// string is already held by reference
message
}
};
let call = self
.builder
.build_call(function, &[message.into(), tag_id.into()], "roc_panic");
.build_call(function, &[msg.into(), tag_id.into()], "roc_panic");
call.set_call_convention(C_CALL_CONV);
}
@ -5555,7 +5575,7 @@ pub(crate) fn throw_exception<'a, 'ctx, 'env>(
let str = build_string_literal(env, parent, message);
env.call_panic(str, PanicTagId::RocPanic);
env.call_panic(env, str, PanicTagId::RocPanic);
builder.build_unreachable();
}
@ -5567,7 +5587,7 @@ pub(crate) fn throw_user_exception<'a, 'ctx, 'env>(
) {
let msg_val = load_symbol(scope, message);
env.call_panic(msg_val, PanicTagId::UserPanic);
env.call_panic(env, msg_val, PanicTagId::UserPanic);
env.builder.build_unreachable();
}