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Enable cross-crate-inlining when MIR inlining is enabled #117363

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merged 1 commit into from
Oct 31, 2023
Merged

Enable cross-crate-inlining when MIR inlining is enabled #117363

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9 changes: 7 additions & 2 deletions compiler/rustc_mir_transform/src/cross_crate_inline.rs
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
use crate::inline;
use crate::pass_manager as pm;
use rustc_attr::InlineAttr;
use rustc_hir::def::DefKind;
use rustc_hir::def_id::LocalDefId;
Expand Down Expand Up @@ -40,8 +42,11 @@ fn cross_crate_inlinable(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool {
return false;
}

// Don't do any inference unless optimizations are enabled.
if matches!(tcx.sess.opts.optimize, OptLevel::No) {
// Don't do any inference if codegen optimizations are disabled and also MIR inlining is not
// enabled. This ensures that we do inference even if someone only passes -Zinline-mir,
// which is less confusing than having to also enable -Copt-level=1.
if matches!(tcx.sess.opts.optimize, OptLevel::No) && !pm::should_run_pass(tcx, &inline::Inline)
{
return false;
}

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