Revert "r227976 - [PowerPC] Yet another approach to __tls_get_addr" and related fixups

[oota-llvm.git] / lib / Target / PowerPC / PPCISelLowering.h

diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index 1691e4ed6dfa0e3ce2f6a0c3b0bb11a71ddadb51..21fcc86d151aa5433c9086077959bf5ee054fc75 100644 (file)
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -101,6 +101,10 @@ namespace llvm {
       /// SVR4 calls.
       CALL, CALL_NOP,
 
+      /// CALL_TLS and CALL_NOP_TLS - Versions of CALL and CALL_NOP used
+      /// to access TLS variables.
+      CALL_TLS, CALL_NOP_TLS,
+
       /// CHAIN,FLAG = MTCTR(VAL, CHAIN[, INFLAG]) - Directly corresponds to a
       /// MTCTR instruction.
       MTCTR,
@@ -224,10 +228,6 @@ namespace llvm {
       /// sym\@got\@tlsgd\@l.
       ADDI_TLSGD_L,
 
-      /// G8RC = GET_TLS_ADDR %X3, Symbol - For the general-dynamic TLS
-      /// model, produces a call to __tls_get_addr(sym\@tlsgd).
-      GET_TLS_ADDR,
-
       /// G8RC = ADDIS_TLSLD_HA %X2, Symbol - For the local-dynamic TLS
       /// model, produces an ADDIS8 instruction that adds the GOT base
       /// register to sym\@got\@tlsld\@ha.
@@ -238,13 +238,11 @@ namespace llvm {
       /// sym\@got\@tlsld\@l.
       ADDI_TLSLD_L,
 
-      /// G8RC = GET_TLSLD_ADDR %X3, Symbol - For the local-dynamic TLS
-      /// model, produces a call to __tls_get_addr(sym\@tlsld).
-      GET_TLSLD_ADDR,
-
-      /// G8RC = ADDIS_DTPREL_HA %X3, Symbol - For the local-dynamic TLS
-      /// model, produces an ADDIS8 instruction that adds X3 to
-      /// sym\@dtprel\@ha.
+      /// G8RC = ADDIS_DTPREL_HA %X3, Symbol, Chain - For the
+      /// local-dynamic TLS model, produces an ADDIS8 instruction
+      /// that adds X3 to sym\@dtprel\@ha. The Chain operand is needed
+      /// to tie this in place following a copy to %X3 from the result
+      /// of a GET_TLSLD_ADDR.
       ADDIS_DTPREL_HA,
 
       /// G8RC = ADDI_DTPREL_L G8RReg, Symbol - For the local-dynamic TLS
@@ -637,6 +635,8 @@ namespace llvm {
     SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
     SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
     SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
+    std::pair<SDValue,SDValue> lowerTLSCall(SDValue Op, SDLoc dl,
+                                            SelectionDAG &DAG) const;
     SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const;
     SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
     SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const;