commit 85c649bc02a6605f541b09b33a200a78275ed90f
author Lang Hames <lhames@gmail.com> Mon Apr 17 15:26:28 2023 +0000
committer Lang Hames <lhames@gmail.com> Mon Apr 17 16:41:00 2023 +0000
tree 78b587cd6fea1fdd69eb63b149b9f66b9c62ab80
parent 2cd15925f4485fc618bc33c1337e1b6f63d84ef6

[ORC][LLJIT] Use JITLink by default on ELF/x86-64.

This patch switches LLJIT's default JIT linker for ELF/x86-64 from RuntimeDyld
to JITLink.

Most clients should not be affected, but if you were explicitly accessing the
old RTDyldObjectLinkingLayer (e.g. to install JITEventListeners) you will need
to either force use of RuntimeDyld (following the example in
llvm/examples/OrcV2Examples/LLJITWithCustomObjectLinkingLayer), or switch to
using JITLink plugins instead.

llvm/lib/ExecutionEngine/Orc/LLJIT.cpp

diff --git a/llvm/lib/ExecutionEngine/Orc/LLJIT.cpp b/llvm/lib/ExecutionEngine/Orc/LLJIT.cpp
index a65c356..d61dde8 100644
--- a/llvm/lib/ExecutionEngine/Orc/LLJIT.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/LLJIT.cpp
@@ -750,7 +750,7 @@
       UseJITLink = !TT.isOSBinFormatCOFF();
       break;
     case Triple::x86_64:
-      UseJITLink = TT.isOSBinFormatMachO();
+      UseJITLink = !TT.isOSBinFormatCOFF();
       break;
     default:
       break;