Use shouldAssumeDSOLocal in classifyGlobalReference.

And teach shouldAssumeDSOLocal that ppc has no copy relocations.

The resulting code handle a few more case than before. For example, it
knows that a weak symbol can be resolved to another .o file, but it
will still be in the main executable.

llvm-svn: 293180

1 files changed, 5 insertions, 2 deletions

diff --git a/llvm/lib/Target/TargetMachine.cpp b/llvm/lib/Target/TargetMachine.cpp
index 438c62dd5ae..4beecb4dbb6 100644
--- a/llvm/lib/Target/TargetMachine.cpp
+++ b/llvm/lib/Target/TargetMachine.cpp
@@ -163,8 +163,11 @@ bool TargetMachine::shouldAssumeDSOLocal(const Module &M,
     bool IsTLS = GV && GV->isThreadLocal();
     bool IsAccessViaCopyRelocs =
         Options.MCOptions.MCPIECopyRelocations && GV && isa<GlobalVariable>(GV);
-    // Check if we can use copy relocations.
-    if (!IsTLS && (RM == Reloc::Static || IsAccessViaCopyRelocs))
+    Triple::ArchType Arch = TT.getArch();
+    bool IsPPC =
+        Arch == Triple::ppc || Arch == Triple::ppc64 || Arch == Triple::ppc64le;
+    // Check if we can use copy relocations. PowerPC has no copy relocations.
+    if (!IsTLS && !IsPPC && (RM == Reloc::Static || IsAccessViaCopyRelocs))
       return true;
   }