[all-commits] [llvm/llvm-project] 9b704d: [Clang] Add option to disable -mconstructor-aliase...
modiking via All-commits
all-commits at lists.llvm.org
Tue Nov 30 15:13:01 PST 2021
Author: modimo <modimo at fb.com>
Date: 2021-11-30 (Tue, 30 Nov 2021)
[Clang] Add option to disable -mconstructor-aliases with -mno-constructor-aliases
We've found that when profiling, counts are only generated for the real definition of constructor aliases (C2 in mangled name). However, when compiling the C1 version is present at the callsite and leads to a lack of counts due to this aliasing. This causes us to miss out on inlining an otherwise hot constructor.
-mconstructor-aliases is AFAICT an optimization, so having a disabling flag if wanted seems valuable.
Reviewed By: wenlei
Differential Revision: https://reviews.llvm.org/D114130
More information about the All-commits