[llvm] r271575 - AMDGPU: Handle flat in getMemOpBaseRegImmOfs

[Matt Arsenault via llvm-commits]

Author: arsenm
Date: Thu Jun  2 15:05:20 2016
New Revision: 271575

URL: http://llvm.org/viewvc/llvm-project?rev=271575&view=rev
Log:
AMDGPU: Handle flat in getMemOpBaseRegImmOfs

It can still report the base register, and the uses give up when it
fails.

Modified:
    llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp

Modified: llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp?rev=271575&r1=271574&r2=271575&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp Thu Jun  2 15:05:20 2016
@@ -287,6 +287,13 @@ bool SIInstrInfo::getMemOpBaseRegImmOfs(
     return true;
   }
 
+  if (isFLAT(*LdSt)) {
+    const MachineOperand *AddrReg = getNamedOperand(*LdSt, AMDGPU::OpName::addr);
+    BaseReg = AddrReg->getReg();
+    Offset = 0;
+    return true;
+  }
+
   return false;
 }