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spirt_passes/diagnostics: track uses of global variables more accurately.

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Eduard-Mihai Burtescu 2023-06-01 21:39:23 +03:00 committed by Eduard-Mihai Burtescu
parent 7d99248b29
commit 08371d3264
1 changed files with 17 additions and 7 deletions
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24
crates/rustc_codegen_spirv/src/linker/spirt_passes/diagnostics.rs
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@ -56,10 +56,12 @@ pub(crate) fn report_diagnostics(
inst_attrs: AttrSet::default(),
origin: IntraFuncUseOrigin::Other,
});
export_key.inner_visit_with(&mut reporter);
if reporter.seen_funcs.insert(func) {
reporter.visit_func_decl(func_decl);
}
// NOTE(eddyb) this is visited last, so that uses of the interface
// variables don't lack relevant context from the function body.
export_key.inner_visit_with(&mut reporter);
reporter.use_stack.pop();
}
export_key.inner_visit_with(&mut reporter);
@ -486,12 +488,20 @@ impl<'a> Visitor<'a> for DiagnosticReporter<'a> {
fn visit_const_use(&mut self, ct: Const) {
if self.seen_consts.insert(ct) {
let ct_def = &self.cx[ct];
self.use_stack.push(UseOrigin::Global {
kind: &"constant",
attrs: ct_def.attrs,
});
self.visit_const_def(ct_def);
self.use_stack.pop();
match ct_def.ctor {
// HACK(eddyb) don't push an `UseOrigin` for `GlobalVar` pointers.
ConstCtor::PtrToGlobalVar(_) if ct_def.attrs == AttrSet::default() => {
self.visit_const_def(ct_def);
}
_ => {
self.use_stack.push(UseOrigin::Global {
kind: &"constant",
attrs: ct_def.attrs,
});
self.visit_const_def(ct_def);
self.use_stack.pop();
}
}
}
}