Generate code for TLS instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58141 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86CodeEmitter.cpp b/lib/Target/X86/X86CodeEmitter.cpp
index 729e4b663e2c7d04e2851ab1b6b19439862826cd..2fe64273b177eff469a6184d1bdcd834296fe95f 100644 (file)
--- a/lib/Target/X86/X86CodeEmitter.cpp
+++ b/lib/Target/X86/X86CodeEmitter.cpp
@@ -527,6 +527,23 @@ void Emitter::emitInstruction(const MachineInstr &MI,
     case X86::DWARF_LOC:
     case X86::FP_REG_KILL:
       break;
+    case X86::TLS_tp: {
+      MCE.emitByte(BaseOpcode);
+      unsigned RegOpcodeField = getX86RegNum(MI.getOperand(0).getReg());
+      MCE.emitByte(ModRMByte(0, RegOpcodeField, 5));
+      emitConstant(0, 4);
+      break;
+    }
+    case X86::TLS_gs_ri: {
+      MCE.emitByte(BaseOpcode);
+      unsigned RegOpcodeField = getX86RegNum(MI.getOperand(0).getReg());
+      MCE.emitByte(ModRMByte(0, RegOpcodeField, 5));
+      GlobalValue* GV = MI.getOperand(1).getGlobal();
+      unsigned rt = Is64BitMode ? X86::reloc_pcrel_word
+        : (IsPIC ? X86::reloc_picrel_word : X86::reloc_absolute_word);
+      emitGlobalAddress(GV, rt);
+      break;
+    }
     case X86::MOVPC32r: {
       // This emits the "call" portion of this pseudo instruction.
       MCE.emitByte(BaseOpcode);

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 2db1448fd726ff7a518f86199e77f413b8ebd272..04f10c008851e019deccf12ff82e00fba0698950 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -2798,6 +2798,11 @@ static unsigned GetInstSizeWithDesc(const MachineInstr &MI,
       FinalSize += sizeConstant(X86InstrInfo::sizeOfImm(Desc));
       break;
     }
+    case X86::TLS_tp:
+    case X86::TLS_gs_ri:
+      FinalSize += 2;
+      FinalSize += sizeGlobalAddress(false);
+      break;
     }
     CurOp = NumOps;
     break;

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index e23bc704b086221ae5f3fa50c705ca3618b806b7..128f12de77c5236ffb5713608883a15ccb026c9e 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -2618,14 +2618,15 @@ def TLS_gs_rr  : I<0, Pseudo, (outs GR32:$dst), (ins GR32:$src),
                   [(set GR32:$dst, (load (add X86TLStp, GR32:$src)))]>;
 
 let AddedComplexity = 15 in
-def TLS_gs_ri : I<0, Pseudo, (outs GR32:$dst), (ins i32imm:$src),
+def TLS_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src),
                   "movl\t%gs:${src:mem}, $dst",
                   [(set GR32:$dst,
-                    (load (add X86TLStp, (X86Wrapper tglobaltlsaddr:$src))))]>;
+                    (load (add X86TLStp, (X86Wrapper tglobaltlsaddr:$src))))]>,
+                  SegGS;
 
-def TLS_tp : I<0, Pseudo, (outs GR32:$dst), (ins),
+def TLS_tp : I<0x8B, Pseudo, (outs GR32:$dst), (ins),
                "movl\t%gs:0, $dst",
-               [(set GR32:$dst, X86TLStp)]>;
+               [(set GR32:$dst, X86TLStp)]>, SegGS;
 
 //===----------------------------------------------------------------------===//
 // DWARF Pseudo Instructions