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codegen_llvm/misc: improve common patterns

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This commit is contained in:
ljedrz 2018-10-09 15:15:41 +02:00
parent e90e8aaeba
commit b07a2d02ca
4 changed files with 32 additions and 38 deletions
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14
src/librustc_codegen_llvm/debuginfo/mod.rs
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@ -271,16 +271,14 @@ pub fn create_function_debug_context(
let mut flags = DIFlags::FlagPrototyped;
let local_id = cx.tcx.hir.as_local_node_id(def_id);
match *cx.sess().entry_fn.borrow() {
Some((id, _, _)) => {
if local_id == Some(id) {
flags = flags | DIFlags::FlagMainSubprogram;
}
if let Some((id, _, _)) = *cx.sess().entry_fn.borrow() {
if local_id == Some(id) {
flags |= DIFlags::FlagMainSubprogram;
}
None => {}
};
}
if cx.layout_of(sig.output()).abi.is_uninhabited() {
flags = flags | DIFlags::FlagNoReturn;
flags |= DIFlags::FlagNoReturn;
}
let fn_metadata = unsafe {