[webkit-reviews] review requested: [Bug 188986] [CMake] Add support for LTO builds : [Attachment 368700] Patch

[bugzilla-daemon at webkit.org]

Christopher Reid <chris.reid at sony.com> has asked  for review:
Bug 188986: [CMake] Add support for LTO builds
https://bugs.webkit.org/show_bug.cgi?id=188986

Attachment 368700: Patch

https://bugs.webkit.org/attachment.cgi?id=368700&action=review




--- Comment #1 from Christopher Reid <chris.reid at sony.com> ---
Created attachment 368700

  --> https://bugs.webkit.org/attachment.cgi?id=368700&action=review

Patch

Support enabling LTO when building with clang.
This patch only enables it for clang currently because GCC hits an internal
error when compiled with -flto.

This patch tries to use ld.lld when LTO_MODE is specified since gold doesn't
recognize llvm bitcode by default. The LLVMgold.so plugin would need to be used
for building LTO with clang and gold.