[llvm] r275131 - AMDGPU: Enable trackLivenessAfterRegAlloc

[Matt Arsenault via llvm-commits]

Author: arsenm
Date: Mon Jul 11 18:56:30 2016
New Revision: 275131

URL: http://llvm.org/viewvc/llvm-project?rev=275131&view=rev
Log:
AMDGPU: Enable trackLivenessAfterRegAlloc

This has caught a number of bugs.

Modified:
    llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp
    llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.h

Modified: llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp?rev=275131&r1=275130&r2=275131&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp Mon Jul 11 18:56:30 2016
@@ -245,6 +245,11 @@ bool SIRegisterInfo::requiresVirtualBase
   return true;
 }
 
+bool SIRegisterInfo::trackLivenessAfterRegAlloc(const MachineFunction &MF) const {
+  // This helps catch bugs as verifier errors.
+  return true;
+}
+
 int64_t SIRegisterInfo::getFrameIndexInstrOffset(const MachineInstr *MI,
                                                  int Idx) const {
   if (!SIInstrInfo::isMUBUF(*MI))

Modified: llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.h?rev=275131&r1=275130&r2=275131&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.h (original)
+++ llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.h Mon Jul 11 18:56:30 2016
@@ -57,6 +57,7 @@ public:
 
   bool requiresFrameIndexScavenging(const MachineFunction &MF) const override;
   bool requiresVirtualBaseRegisters(const MachineFunction &Fn) const override;
+  bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const override;
 
   int64_t getFrameIndexInstrOffset(const MachineInstr *MI,
                                    int Idx) const override;