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Merge pull request #3948 from roc-lang/windows-c-calling-convention

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windows c calling convention
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Richard Feldman 2022-09-03 09:58:49 -07:00 committed by GitHub
commit 76547a61f0
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1 changed files with 7 additions and 1 deletions
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8
crates/compiler/gen_llvm/src/llvm/build.rs
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@ -6719,7 +6719,13 @@ impl<'ctx> FunctionSpec<'ctx> {
/// According to the C ABI, how should we return a value with the given layout?
pub fn to_cc_return<'a, 'ctx, 'env>(env: &Env<'a, 'ctx, 'env>, layout: &Layout<'a>) -> CCReturn {
let return_size = layout.stack_size(env.layout_interner, env.target_info);
let pass_result_by_pointer = return_size > 2 * env.target_info.ptr_width() as u32;
let pass_result_by_pointer = match env.target_info.operating_system {
roc_target::OperatingSystem::Windows => {
return_size >= 2 * env.target_info.ptr_width() as u32
}
roc_target::OperatingSystem::Unix => return_size > 2 * env.target_info.ptr_width() as u32,
roc_target::OperatingSystem::Wasi => unreachable!(),
};
if return_size == 0 {
CCReturn::Void