[llvm-commits] [llvm] r133321 - /llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Fri Jun 17 19:53:27 2011
New Revision: 133321

URL: http://llvm.org/viewvc/llvm-project?rev=133321&view=rev
Log:
Reserve D16-D13 on subtargets that don't support them.

Modified:
    llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp

Modified: llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp?rev=133321&r1=133320&r2=133321&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp Fri Jun 17 19:53:27 2011
@@ -100,6 +100,12 @@
   // Some targets reserve R9.
   if (STI.isR9Reserved())
     Reserved.set(ARM::R9);
+  // Reserve D16-D31 if the subtarget doesn't support them.
+  if (!STI.hasVFP3() || STI.hasD16()) {
+    assert(ARM::D31 == ARM::D16 + 15);
+    for (unsigned i = 0; i != 16; ++i)
+      Reserved.set(ARM::D16 + i);
+  }
   return Reserved;
 }