Change def_id filter to use requires_monomorphization()

Rich Kadel · Rich Kadel · commit 94a3454b0318 · 2021-03-23T00:33:57.000-07:00
Per @wesleywiser's comment: #83307 (comment)
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
@@ -269,7 +269,7 @@ fn add_unused_functions<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) {
         .iter()
         .filter_map(|local_def_id| {
             let def_id = local_def_id.to_def_id();
-            if ignore_unused_generics && tcx.generics_of(def_id).count() > 0 {
+            if ignore_unused_generics && tcx.generics_of(def_id).requires_monomorphization(tcx) {
                 return None;
             }
             Some(local_def_id.to_def_id())

Original file line number	Diff line number	Diff line change
`@@ -269,7 +269,7 @@ fn add_unused_functions<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) {`
`269`	`269`	`.iter()`
`270`	`270`	`.filter_map(\|local_def_id\| {`
`271`	`271`	`let def_id = local_def_id.to_def_id();`
`272`		`- if ignore_unused_generics && tcx.generics_of(def_id).count() > 0 {`
	`272`	`+ if ignore_unused_generics && tcx.generics_of(def_id).requires_monomorphization(tcx) {`
`273`	`273`	`return None;`
`274`	`274`	`}`
`275`	`275`	`Some(local_def_id.to_def_id())`