Refactor TLS code and add some tests. The tests and expected results are:

 pic |  declaration | linkage  | visibility |

!pic |  declaration | external | default    | tls1.ll     tls2.ll     | local exec
 pic |  declaration | external | default    | tls1-pic.ll tls2-pic.ll | general dynamic
!pic | !declaration | external | default    | tls3.ll     tls4.ll     | initial exec
 pic | !declaration | external | default    | tls3-pic.ll tls4-pic.ll | general dynamic

!pic |  declaration | external | hidden     | tls7.ll     tls8.ll     | local exec
 pic |  declaration | external | hidden     | X                       | local dynamic
!pic | !declaration | external | hidden     | tls9.ll     tls10.ll    | local exec
 pic | !declaration | external | hidden     | X                       | local dynamic

!pic |  declaration | internal | default    | tls5.ll     tls6.ll     | local exec
 pic |  declaration | internal | default    | X                       | local dynamic

The ones marked with an X have not been implemented since local dynamic is not implemented.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65632 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 23 insertions, 6 deletions

diff --git a/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp b/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
index ca1d738..e0bd6a3 100644
--- a/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
+++ b/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
@@ -439,13 +439,30 @@ void X86ATTAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
     printOffset(MO.getOffset());
 
     if (isThreadLocal) {
-      if (TM.getRelocationModel() == Reloc::PIC_ || Subtarget->is64Bit())
-        O << "@TLSGD"; // general dynamic TLS model
-      else
-        if (GV->isDeclaration())
-          O << "@INDNTPOFF"; // initial exec TLS model
+      TLSModel::Model model = getTLSModel(GVar, TM.getRelocationModel());
+      switch (model) {
+      case TLSModel::GeneralDynamic:
+        O << "@TLSGD";
+        break;
+      case TLSModel::LocalDynamic:
+        // O << "@TLSLD"; // local dynamic not implemented
+	O << "@TLSGD";
+        break;
+      case TLSModel::InitialExec:
+        if (Subtarget->is64Bit())
+          O << "@TLSGD"; // 64 bit intial exec not implemented
         else
-          O << "@NTPOFF"; // local exec TLS model
+          O << "@INDNTPOFF";
+        break;
+      case TLSModel::LocalExec:
+        if (Subtarget->is64Bit())
+          O << "@TLSGD"; // 64 bit local exec not implemented
+        else
+	  O << "@NTPOFF";
+        break;
+      default:
+        assert (0 && "Unknown TLS model");
+      }
     } else if (isMemOp) {
       if (shouldPrintGOT(TM, Subtarget)) {
         if (Subtarget->GVRequiresExtraLoad(GV, TM, false))