diff options
| author | Jez Ng <jezng@fb.com> | 2021-01-12 14:41:56 -0500 |
|---|---|---|
| committer | Jez Ng <jezng@fb.com> | 2021-01-20 14:21:32 -0500 |
| commit | 697f4e429b900d2d3d8a03713c7d6cd562a5bd35 (patch) | |
| tree | ffdbe6fbe08dbd64114ccabd58482c8d2dbf7598 /llvm/lib/LTO/LTOBackend.cpp | |
| parent | b3e73dc5af6b4d1438ea401a7ab60bfe298a53c6 (diff) | |
| download | llvm-697f4e429b900d2d3d8a03713c7d6cd562a5bd35.zip llvm-697f4e429b900d2d3d8a03713c7d6cd562a5bd35.tar.gz llvm-697f4e429b900d2d3d8a03713c7d6cd562a5bd35.tar.bz2 | |
[lld-macho] Run ObjCContractPass during LTO
Run the ObjCARCContractPass during LTO. The legacy LTO backend (under
LTO/ThinLTOCodeGenerator.cpp) already does this; this diff just adds that
behavior to the new LTO backend. Without that pass, the objc.clang.arc.use
intrinsic will get passed to the instruction selector, which doesn't know how to
handle it.
In order to test both the new and old pass managers, I've also added support for
the `--[no-]lto-legacy-pass-manager` flags.
P.S. Not sure if the ordering of the pass within the pipeline matters...
Reviewed By: fhahn
Differential Revision: https://reviews.llvm.org/D94547
Diffstat (limited to 'llvm/lib/LTO/LTOBackend.cpp')
| -rw-r--r-- | llvm/lib/LTO/LTOBackend.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/LTO/LTOBackend.cpp b/llvm/lib/LTO/LTOBackend.cpp index effbdf6..8328224 100644 --- a/llvm/lib/LTO/LTOBackend.cpp +++ b/llvm/lib/LTO/LTOBackend.cpp @@ -428,6 +428,8 @@ static void codegen(const Config &Conf, TargetMachine *TM, legacy::PassManager CodeGenPasses; CodeGenPasses.add( createImmutableModuleSummaryIndexWrapperPass(&CombinedIndex)); + if (Conf.PreCodeGenPassesHook) + Conf.PreCodeGenPassesHook(CodeGenPasses); if (TM->addPassesToEmitFile(CodeGenPasses, *Stream->OS, DwoOut ? &DwoOut->os() : nullptr, Conf.CGFileType)) |