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R600: silence GCC warning

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GCC believes it may be possible to not return a value from the switch:
  lib/Target/R600/SIRegisterInfo.cpp:187:1: warning: control reaches end of non-void function [-Wreturn-type]

Add an unreachable label to indicate that this is not possible and still permit
switch coverage checking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213572 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool 2014-07-21 17:52:00 +00:00
parent 163d8ce61f
commit 7ed655da8c
1 changed files with 1 additions and 0 deletions

1
lib/Target/R600/SIRegisterInfo.cpp

@ -184,4 +184,5 @@ unsigned SIRegisterInfo::getPreloadedValue(const MachineFunction &MF,
case SIRegisterInfo::SCRATCH_PTR:
return AMDGPU::SGPR2_SGPR3;
}
llvm_unreachable("unexpected preloaded value type");
}