[PATCH] D109090: Amends LLVM commit 2518433f861fcb877d0a7bdd9aec1aec1f77505a that was pointed as the source of regression on LLVM12.

[Alfredo Dal'Ava Júnior via Phabricator via llvm-commits]

adalava created this revision.
Herald added subscribers: steven.zhang, hiraditya.
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This affects powerpc64*, making binaries crash with segmentation fault
due to bad code generation around "__stack_chk_guard"

Root cause and/or proper fix is under investigation by:

  https://bugs.llvm.org/show_bug.cgi?id=51590


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109090

Files:
  llvm/lib/CodeGen/TargetLoweringBase.cpp


Index: llvm/lib/CodeGen/TargetLoweringBase.cpp
===================================================================
--- llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -1981,7 +1981,8 @@
                                   GlobalVariable::ExternalLinkage, nullptr,
                                   "__stack_chk_guard");
     if (TM.getRelocationModel() == Reloc::Static &&
-        !TM.getTargetTriple().isWindowsGNUEnvironment())
+        !TM.getTargetTriple().isWindowsGNUEnvironment() &&
+	!(TM.getTargetTriple().isPPC64() && TM.getTargetTriple().isOSFreeBSD()))
       GV->setDSOLocal(true);
   }
 }


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