commit f36005a358472f99da74de37bbf1a3e6661694f3
author Saleem Abdulrasool <compnerd@compnerd.org> Wed Feb 03 18:21:59 2016 +0000
committer Saleem Abdulrasool <compnerd@compnerd.org> Wed Feb 03 18:21:59 2016 +0000
tree 7caac02bd2676e510c38070bdb4f72847a9528c9
parent 97de385868d73e5ea81494fc380c35507798893f

ARM: support TLS for WoA

Add support for TLS access for Windows on ARM.  This generates a similar access
to MSVC for ARM.

The changes to the tablegen data is needed to support loading an external symbol
global that is not for a call.  The adjustments to the DAG to DAG transforms are
needed to preserve the 32-bit move.

llvm-svn: 259676

llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp

diff --git a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 89e0bab..afeee04 100644
--- a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -623,6 +623,7 @@
 
     if (N.getOpcode() == ARMISD::Wrapper &&
         N.getOperand(0).getOpcode() != ISD::TargetGlobalAddress &&
+        N.getOperand(0).getOpcode() != ISD::TargetExternalSymbol &&
         N.getOperand(0).getOpcode() != ISD::TargetGlobalTLSAddress) {
       Base = N.getOperand(0);
     } else
@@ -803,6 +804,7 @@
           FI, TLI->getPointerTy(CurDAG->getDataLayout()));
     } else if (N.getOpcode() == ARMISD::Wrapper &&
                N.getOperand(0).getOpcode() != ISD::TargetGlobalAddress &&
+               N.getOperand(0).getOpcode() != ISD::TargetExternalSymbol &&
                N.getOperand(0).getOpcode() != ISD::TargetGlobalTLSAddress) {
       Base = N.getOperand(0);
     }
@@ -1070,6 +1072,7 @@
           FI, TLI->getPointerTy(CurDAG->getDataLayout()));
     } else if (N.getOpcode() == ARMISD::Wrapper &&
                N.getOperand(0).getOpcode() != ISD::TargetGlobalAddress &&
+               N.getOperand(0).getOpcode() != ISD::TargetExternalSymbol &&
                N.getOperand(0).getOpcode() != ISD::TargetGlobalTLSAddress) {
       Base = N.getOperand(0);
     }
@@ -1190,6 +1193,7 @@
       return false; // We want to select register offset instead
     } else if (N.getOpcode() == ARMISD::Wrapper &&
         N.getOperand(0).getOpcode() != ISD::TargetGlobalAddress &&
+        N.getOperand(0).getOpcode() != ISD::TargetExternalSymbol &&
         N.getOperand(0).getOpcode() != ISD::TargetGlobalTLSAddress) {
       Base = N.getOperand(0);
     } else {
@@ -1297,6 +1301,7 @@
 
     if (N.getOpcode() == ARMISD::Wrapper &&
         N.getOperand(0).getOpcode() != ISD::TargetGlobalAddress &&
+        N.getOperand(0).getOpcode() != ISD::TargetExternalSymbol &&
         N.getOperand(0).getOpcode() != ISD::TargetGlobalTLSAddress) {
       Base = N.getOperand(0);
       if (Base.getOpcode() == ISD::TargetConstantPool)