[llvm-commits] [llvm] r131739 - in /llvm/trunk/lib/Target/ARM: ARMISelLowering.cpp ARMSubtarget.cpp ARMSubtarget.h

[Evan Cheng]

Author: evancheng
Date: Fri May 20 12:38:48 2011
New Revision: 131739

URL: http://llvm.org/viewvc/llvm-project?rev=131739&view=rev
Log:
Revert accidental commit.

Modified:
    llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
    llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp
    llvm/trunk/lib/Target/ARM/ARMSubtarget.h

Modified: llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp?rev=131739&r1=131738&r2=131739&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp Fri May 20 12:38:48 2011
@@ -1182,7 +1182,7 @@
   bool IsStructRet    = (Outs.empty()) ? false : Outs[0].Flags.isSRet();
   bool IsSibCall = false;
   // Temporarily disable tail calls so things don't break.
-  if (!EnableARMTailCalls && !Subtarget->supportsTailCall())
+  if (!EnableARMTailCalls)
     isTailCall = false;
   if (isTailCall) {
     // Check if it's really possible to do a tail call.

Modified: llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp?rev=131739&r1=131738&r2=131739&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp Fri May 20 12:38:48 2011
@@ -46,7 +46,6 @@
   , PostRAScheduler(false)
   , IsR9Reserved(ReserveR9)
   , UseMovt(false)
-  , SupportsTailCall(false)
   , HasFP16(false)
   , HasD16(false)
   , HasHardwareDivide(false)
@@ -154,8 +153,6 @@
   else {
     IsR9Reserved = ReserveR9 | (ARMArchVersion < V6);
     UseMovt = DarwinUseMOVT && hasV6T2Ops();
-    const Triple &T = getTargetTriple();
-    SupportsTailCall = T.getOS() == Triple::IOS && !T.isOSVersionLT(5, 0);
   }
 
   if (!isThumb() || hasThumb2())

Modified: llvm/trunk/lib/Target/ARM/ARMSubtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMSubtarget.h?rev=131739&r1=131738&r2=131739&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMSubtarget.h (original)
+++ llvm/trunk/lib/Target/ARM/ARMSubtarget.h Fri May 20 12:38:48 2011
@@ -87,11 +87,6 @@
   /// imms (including global addresses).
   bool UseMovt;
 
-  /// SupportsTailCall - True if the OS supports tail call. The dynamic linker
-  /// must be able to synthesize call stubs for interworking between ARM and
-  /// Thumb.
-  bool SupportsTailCall;
-
   /// HasFP16 - True if subtarget supports half-precision FP (We support VFP+HF
   /// only so far)
   bool HasFP16;
@@ -222,7 +217,6 @@
   bool isR9Reserved() const { return IsR9Reserved; }
 
   bool useMovt() const { return UseMovt && hasV6T2Ops(); }
-  bool supportsTailCall() const { return SupportsTailCall; }
 
   bool allowsUnalignedMem() const { return AllowsUnalignedMem; }