[llvm-commits] [llvm] r104197 - in /llvm/trunk: include/llvm/MC/MCAsmInfo.h lib/CodeGen/AsmPrinter/AsmPrinter.cpp lib/MC/MCAsmInfo.cpp lib/MC/MCAsmInfoDarwin.cpp

[Eric Christopher]

Author: echristo
Date: Wed May 19 19:49:07 2010
New Revision: 104197

URL: http://llvm.org/viewvc/llvm-project?rev=104197&view=rev
Log:
Partial code for emitting thread local bss data.

Modified:
    llvm/trunk/include/llvm/MC/MCAsmInfo.h
    llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
    llvm/trunk/lib/MC/MCAsmInfo.cpp
    llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp

Modified: llvm/trunk/include/llvm/MC/MCAsmInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/MC/MCAsmInfo.h?rev=104197&r1=104196&r2=104197&view=diff
==============================================================================
--- llvm/trunk/include/llvm/MC/MCAsmInfo.h (original)
+++ llvm/trunk/include/llvm/MC/MCAsmInfo.h Wed May 19 19:49:07 2010
@@ -303,6 +303,7 @@
     // Accessors.
     //
     bool hasMachoZeroFillDirective() const { return HasMachoZeroFillDirective; }
+    bool hasMachoTBSSDirective() const { return HasMachoTBSSDirective; }
     bool hasStaticCtorDtorReferenceInStaticMode() const {
       return HasStaticCtorDtorReferenceInStaticMode;
     }

Modified: llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp?rev=104197&r1=104196&r2=104197&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp Wed May 19 19:49:07 2010
@@ -310,6 +310,13 @@
     OutStreamer.EmitZerofill(TheSection, GVSym, Size, 1 << AlignLog);
     return;
   }
+  
+  // Handle the tbss directive on darwin which is a thread local bss directive
+  // like zerofill.
+  if (GVKind.isThreadBSS() && MAI->hasMachoTBSSDirective()) {
+    OutStreamer.EmitTBSSSymbol(TheSection, GVSym, Size, 1 << AlignLog);
+    return;
+  }
 
   OutStreamer.SwitchSection(TheSection);
 

Modified: llvm/trunk/lib/MC/MCAsmInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCAsmInfo.cpp?rev=104197&r1=104196&r2=104197&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCAsmInfo.cpp (original)
+++ llvm/trunk/lib/MC/MCAsmInfo.cpp Wed May 19 19:49:07 2010
@@ -21,6 +21,7 @@
 MCAsmInfo::MCAsmInfo() {
   HasSubsectionsViaSymbols = false;
   HasMachoZeroFillDirective = false;
+  HasMachoTBSSDirective = false;
   HasStaticCtorDtorReferenceInStaticMode = false;
   MaxInstLength = 4;
   PCSymbol = "$";

Modified: llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp?rev=104197&r1=104196&r2=104197&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp (original)
+++ llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp Wed May 19 19:49:07 2010
@@ -35,6 +35,7 @@
   WeakRefDirective = "\t.weak_reference ";
   ZeroDirective = "\t.space\t";  // ".space N" emits N zeros.
   HasMachoZeroFillDirective = true;  // Uses .zerofill
+  HasMachoTBSSDirective = true; // Uses .tbss
   HasStaticCtorDtorReferenceInStaticMode = true;
   
   HiddenVisibilityAttr = MCSA_PrivateExtern;