[PowerPC] Support @tls in the asm parser

This adds support for the last missing construct to parse TLS-related
assembler code:
   add 3, 4, symbol@tls

The ADD8TLS currently hard-codes the @tls into the assembler string.
This cannot be handled by the asm parser, since @tls is parsed as
a symbol variant.  This patch changes ADD8TLS to have the @tls suffix
printed as symbol variant on output too, which allows us to remove
the isCodeGenOnly marker from ADD8TLS.  This in turn means that we
can add a AsmOperand to accept @tls marked symbols on input.

As a side effect, this means that the fixup_ppc_tlsreg fixup type
is no longer necessary and can be merged into fixup_ppc_nofixup.

llvm-svn: 185692

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index c4f961cbd64..0f790313638 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -1359,12 +1359,14 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op,
 
   if (Model == TLSModel::InitialExec) {
     SDValue TGA = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, 0);
+    SDValue TGATLS = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0,
+                                                PPCII::MO_TLS);
     SDValue GOTReg = DAG.getRegister(PPC::X2, MVT::i64);
     SDValue TPOffsetHi = DAG.getNode(PPCISD::ADDIS_GOT_TPREL_HA, dl,
                                      PtrVT, GOTReg, TGA);
     SDValue TPOffset = DAG.getNode(PPCISD::LD_GOT_TPREL_L, dl,
                                    PtrVT, TGA, TPOffsetHi);
-    return DAG.getNode(PPCISD::ADD_TLS, dl, PtrVT, TPOffset, TGA);
+    return DAG.getNode(PPCISD::ADD_TLS, dl, PtrVT, TPOffset, TGATLS);
   }
 
   if (Model == TLSModel::GeneralDynamic) {