Implement "general dynamic", "initial exec" and "local exec" TLS models for

X86 32 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36283 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 31 insertions, 5 deletions

diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index 253d574..0f17e69 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -398,6 +398,9 @@ public:
   SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
                         MVT::ValueType VT2, MVT::ValueType VT3,
                         SDOperand Op1, SDOperand Op2);
+  SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
+                        MVT::ValueType VT2, MVT::ValueType VT3,
+                        SDOperand Op1, SDOperand Op2, SDOperand Op3);
   SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1, 
                         MVT::ValueType VT2, MVT::ValueType VT3,
                         const SDOperand *Ops, unsigned NumOps);
diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index 74f405f..77d607a 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -19,6 +19,7 @@
 #ifndef LLVM_CODEGEN_SELECTIONDAGNODES_H
 #define LLVM_CODEGEN_SELECTIONDAGNODES_H
 
+#include "llvm/GlobalVariable.h"
 #include "llvm/Value.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/GraphTraits.h"
@@ -95,7 +96,8 @@ namespace ISD {
     // Various leaf nodes.
     STRING, BasicBlock, VALUETYPE, CONDCODE, Register,
     Constant, ConstantFP,
-    GlobalAddress, FrameIndex, JumpTable, ConstantPool, ExternalSymbol,
+    GlobalAddress, GlobalTLSAddress, FrameIndex,
+    JumpTable, ConstantPool, ExternalSymbol,
 
     // The address of the GOT
     GLOBAL_OFFSET_TABLE,
@@ -124,6 +126,7 @@ namespace ISD {
     // anything else with this node, and this is valid in the target-specific
     // dag, turning into a GlobalAddress operand.
     TargetGlobalAddress,
+    TargetGlobalTLSAddress,
     TargetFrameIndex,
     TargetJumpTable,
     TargetConstantPool,
@@ -1164,7 +1167,12 @@ protected:
   friend class SelectionDAG;
   GlobalAddressSDNode(bool isTarget, const GlobalValue *GA, MVT::ValueType VT,
                       int o = 0)
-    : SDNode(isTarget ? ISD::TargetGlobalAddress : ISD::GlobalAddress,
+    : SDNode(dyn_cast<GlobalVariable>(GA) &&
+             dyn_cast<GlobalVariable>(GA)->isThreadLocal() ?
+             // Thread Local
+             (isTarget ? ISD::TargetGlobalTLSAddress : ISD::GlobalTLSAddress) :
+             // Non Thread Local
+             (isTarget ? ISD::TargetGlobalAddress : ISD::GlobalAddress),
              getSDVTList(VT)), Offset(o) {
     TheGlobal = const_cast<GlobalValue*>(GA);
   }
@@ -1176,11 +1184,12 @@ public:
   static bool classof(const GlobalAddressSDNode *) { return true; }
   static bool classof(const SDNode *N) {
     return N->getOpcode() == ISD::GlobalAddress ||
-           N->getOpcode() == ISD::TargetGlobalAddress;
+           N->getOpcode() == ISD::TargetGlobalAddress ||
+           N->getOpcode() == ISD::GlobalTLSAddress ||
+           N->getOpcode() == ISD::TargetGlobalTLSAddress;
   }
 };
 
-
 class FrameIndexSDNode : public SDNode {
   int FI;
   virtual void ANCHOR();  // Out-of-line virtual method to give class a home.
diff --git a/include/llvm/Target/TargetAsmInfo.h b/include/llvm/Target/TargetAsmInfo.h
index 04f9118..60de430 100644
--- a/include/llvm/Target/TargetAsmInfo.h
+++ b/include/llvm/Target/TargetAsmInfo.h
@@ -43,7 +43,15 @@ namespace llvm {
     /// target doesn't support a BSS section.
     ///
     const char *BSSSection;               // Default to ".bss".
-    
+
+    /// TLSDataSection - Section directive for Thread Local data.
+    ///
+    const char *TLSDataSection;// Defaults to ".section .tdata,"awT",@progbits".
+
+    /// TLSBSSSection - Section directive for Thread Local uninitialized data.
+    /// Null if this target doesn't support a BSS section.
+    ///
+    const char *TLSBSSSection;// Default to ".section .tbss,"awT",@nobits".
     /// ZeroFillDirective - Directive for emitting a global to the ZeroFill
     /// section on this target.  Null if this target doesn't support zerofill.
     const char *ZeroFillDirective;        // Default is null.
@@ -362,6 +370,12 @@ namespace llvm {
     const char *getBSSSection() const {
       return BSSSection;
     }
+    const char *getTLSDataSection() const {
+      return TLSDataSection;
+    }
+    const char *getTLSBSSSection() const {
+      return TLSBSSSection;
+    }
     const char *getZeroFillDirective() const {
       return ZeroFillDirective;
     }