cmd/compile: remove outdate TODO in inl.go

Mid-stack inlining is enable now, see #19348, but we still can not remove the special case for runtime.heapBits.nextArena, because runtime.heapBits.next is too complex to be inlined (cost 96 exceeds budget 80). Change-Id: I04ea86509074afdc83a3f70d68b8a1a8829763d1 Reviewed-on: https://go-review.googlesource.com/c/go/+/174839 Reviewed-by: Brad Fitzpatrick <[email protected]>
golang · May 2, 2019 · 19f5c23 · 19f5c23
1 parent 2316784
commit 19f5c23
Showing 1 changed file with 0 additions and 4 deletions.
diff --git a/src/cmd/compile/internal/gc/inl.go b/src/cmd/compile/internal/gc/inl.go
@@ -343,10 +343,6 @@ func (v *hairyVisitor) visit(n *Node) bool {
 				// runtime.heapBits.next even though
 				// it calls slow-path
 				// runtime.heapBits.nextArena.
-				//
-				// TODO(austin): Once mid-stack
-				// inlining is the default, remove
-				// this special case.
 				break
 			}
 		}