[PATCH] D25220: AMDGPU: Do not re-use tmpreg in spill/restore lowering

[Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL283369: AMDGPU: Do not re-use tmpreg in spill/restore lowering (authored by matze).

Changed prior to commit:
  https://reviews.llvm.org/D25220?vs=73386&id=73687#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D25220

Files:
  llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp


Index: llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp
===================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp
+++ llvm/trunk/lib/Target/AMDGPU/SIRegisterInfo.cpp
@@ -417,13 +417,13 @@
   const DebugLoc &DL = MI->getDebugLoc();
 
   unsigned NumSubRegs = getNumSubRegsForSpillOp(MI->getOpcode());
-  unsigned TmpReg = MRI.createVirtualRegister(&AMDGPU::VGPR_32RegClass);
   unsigned SuperReg = MI->getOperand(0).getReg();
   bool IsKill = MI->getOperand(0).isKill();
 
   // SubReg carries the "Kill" flag when SubReg == SuperReg.
   unsigned SubKillState = getKillRegState((NumSubRegs == 1) && IsKill);
   for (unsigned i = 0, e = NumSubRegs; i < e; ++i) {
+    unsigned TmpReg = MRI.createVirtualRegister(&AMDGPU::VGPR_32RegClass);
     unsigned SubReg = NumSubRegs == 1 ?
       SuperReg : getSubReg(SuperReg, getSubRegFromChannel(i));
 
@@ -503,7 +503,6 @@
   const DebugLoc &DL = MI->getDebugLoc();
 
   unsigned NumSubRegs = getNumSubRegsForSpillOp(MI->getOpcode());
-  unsigned TmpReg = MRI.createVirtualRegister(&AMDGPU::VGPR_32RegClass);
   unsigned SuperReg = MI->getOperand(0).getReg();
 
   // m0 is not allowed as with readlane/writelane, so a temporary SGPR and
@@ -515,6 +514,7 @@
   }
 
   for (unsigned i = 0, e = NumSubRegs; i < e; ++i) {
+    unsigned TmpReg = MRI.createVirtualRegister(&AMDGPU::VGPR_32RegClass);
     unsigned SubReg = NumSubRegs == 1 ?
       SuperReg : getSubReg(SuperReg, getSubRegFromChannel(i));
 


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