[llvm] r192364 - R600/SI: Mark the EXEC register as reserved

[Tom Stellard]

Author: tstellar
Date: Thu Oct 10 12:11:19 2013
New Revision: 192364

URL: http://llvm.org/viewvc/llvm-project?rev=192364&view=rev
Log:
R600/SI: Mark the EXEC register as reserved

This prevents the machine verifier from complaining about uses of
an undefined physical register.

Reviewed-by: Vincent Lejeune<vljn at ovi.com>

Modified:
    llvm/trunk/lib/Target/R600/SIRegisterInfo.cpp

Modified: llvm/trunk/lib/Target/R600/SIRegisterInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIRegisterInfo.cpp?rev=192364&r1=192363&r2=192364&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/SIRegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/R600/SIRegisterInfo.cpp Thu Oct 10 12:11:19 2013
@@ -25,6 +25,7 @@ SIRegisterInfo::SIRegisterInfo(AMDGPUTar
 
 BitVector SIRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   BitVector Reserved(getNumRegs());
+  Reserved.set(AMDGPU::EXEC);
   return Reserved;
 }