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coverage: Inline creating a dummy instance for unused functions

This commit is contained in:
Zalathar 2024-03-22 14:33:58 +11:00
parent 5f2c7d2bfd
commit 5ddc4f24cc
1 changed files with 11 additions and 11 deletions
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22
compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
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@ -385,8 +385,7 @@ fn add_unused_functions(cx: &CodegenCx<'_, '_>) {
};
debug!("generating unused fn: {def_id:?}");
let instance = declare_unused_fn(tcx, def_id);
add_unused_function_coverage(cx, instance, function_coverage_info);
add_unused_function_coverage(cx, def_id, function_coverage_info);
}
}
@ -421,8 +420,15 @@ fn codegenned_and_inlined_items(tcx: TyCtxt<'_>) -> DefIdSet {
result
}
fn declare_unused_fn<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> ty::Instance<'tcx> {
ty::Instance::new(
fn add_unused_function_coverage<'tcx>(
cx: &CodegenCx<'_, 'tcx>,
def_id: DefId,
function_coverage_info: &'tcx mir::coverage::FunctionCoverageInfo,
) {
let tcx = cx.tcx;
// Make a dummy instance that fills in all generics with placeholders.
let instance = ty::Instance::new(
def_id,
ty::GenericArgs::for_item(tcx, def_id, |param, _| {
if let ty::GenericParamDefKind::Lifetime = param.kind {
@ -431,14 +437,8 @@ fn declare_unused_fn<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> ty::Instance<'tc
tcx.mk_param_from_def(param)
}
}),
)
}
);
fn add_unused_function_coverage<'tcx>(
cx: &CodegenCx<'_, 'tcx>,
instance: ty::Instance<'tcx>,
function_coverage_info: &'tcx mir::coverage::FunctionCoverageInfo,
) {
// An unused function's mappings will automatically be rewritten to map to
// zero, because none of its counters/expressions are marked as seen.
let function_coverage = FunctionCoverageCollector::unused(instance, function_coverage_info);