commit 2e6496026f41d2c05ff038d14df9972f8a27fb94
author Evan Cheng <evan.cheng@apple.com> Fri May 20 00:54:37 2011 +0000
committer Evan Cheng <evan.cheng@apple.com> Fri May 20 00:54:37 2011 +0000
tree 3dde6780a871b0e1bba1d4d27f38e6937fea0298
parent 5a4b3d8c8f52ee225ffc65c7d6cebc78b1ec7808

Revert r131664 and fix it in instcombine instead. rdar://9467055

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131708 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARMSubtarget.cpp

diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp
index c6f266b..0509d58 100644
--- a/lib/Target/ARM/ARMSubtarget.cpp
+++ b/lib/Target/ARM/ARMSubtarget.cpp
@@ -46,6 +46,7 @@
   , PostRAScheduler(false)
   , IsR9Reserved(ReserveR9)
   , UseMovt(false)
+  , SupportsTailCall(false)
   , HasFP16(false)
   , HasD16(false)
   , HasHardwareDivide(false)
@@ -153,6 +154,8 @@
   else {
     IsR9Reserved = ReserveR9 | (ARMArchVersion < V6);
     UseMovt = DarwinUseMOVT && hasV6T2Ops();
+    const Triple &T = getTargetTriple();
+    SupportsTailCall = T.getOS() == Triple::IOS && !T.isOSVersionLT(5, 0);
   }
 
   if (!isThumb() || hasThumb2())