Support the tls_model attribute (PR9788)

This adds support for the tls_model attribute. This allows the user to
choose a TLS model that is better than what LLVM would select by
default. For example, a variable might be declared as:

  __thread int x __attribute__((tls_model("initial-exec")));

if it will not be used in a shared library that is dlopen'ed.

This depends on LLVM r159077.

llvm-svn: 159078

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/CodeGen/CGExprConstant.cpp b/clang/lib/CodeGen/CGExprConstant.cpp
index 854810b310d..97512ad5307 100644
--- a/clang/lib/CodeGen/CGExprConstant.cpp
+++ b/clang/lib/CodeGen/CGExprConstant.cpp
@@ -932,7 +932,8 @@ public:
         C = new llvm::GlobalVariable(CGM.getModule(), C->getType(),
                                      E->getType().isConstant(CGM.getContext()),
                                      llvm::GlobalValue::InternalLinkage,
-                                     C, ".compoundliteral", 0, false,
+                                     C, ".compoundliteral", 0,
+                                     llvm::GlobalVariable::NotThreadLocal,
                           CGM.getContext().getTargetAddressSpace(E->getType()));
       return C;
     }