the latest assembler that runs on powerpc 10.4 machines doesn't
support aligned comm. Detect when compiling for 10.4 and don't
emit an alignment for comm. THis will hopefully fix PR8198.
llvm-svn: 114817
diff --git a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index f1e10ee..4afdc3d 100644
--- a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -33,6 +33,7 @@
#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Triple.h"
using namespace llvm;
using namespace dwarf;
@@ -450,6 +451,19 @@
IsFunctionEHSymbolGlobal = true;
IsFunctionEHFrameSymbolPrivate = false;
SupportsWeakOmittedEHFrame = false;
+
+ Triple T(((LLVMTargetMachine&)TM).getTargetTriple());
+ if (T.getOS() == Triple::Darwin) {
+ switch (T.getDarwinMajorNumber()) {
+ case 7: // 10.3 Panther.
+ case 8: // 10.4 Tiger.
+ CommDirectiveSupportsAlignment = false;
+ break;
+ case 9: // 10.5 Leopard.
+ case 10: // 10.6 SnowLeopard.
+ break;
+ }
+ }
TargetLoweringObjectFile::Initialize(Ctx, TM);