Clean up sub-register implementation by moving subReg information back to

MachineOperand auxInfo. Previous clunky implementation uses an external map
to track sub-register uses. That works because register allocator uses
a new virtual register for each spilled use. With interval splitting (coming
soon), we may have multiple uses of the same register some of which are
of using different sub-registers from others. It's too fragile to constantly
update the information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44104 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/include/llvm/CodeGen/MachineInstrBuilder.h b/include/llvm/CodeGen/MachineInstrBuilder.h
index b2361a51b1..c62f67b38f 100644
--- a/include/llvm/CodeGen/MachineInstrBuilder.h
+++ b/include/llvm/CodeGen/MachineInstrBuilder.h
@@ -39,8 +39,8 @@ public:
   const
   MachineInstrBuilder &addReg(unsigned RegNo, bool isDef = false, 
                               bool isImp = false, bool isKill = false, 
-                              bool isDead = false) const {
-    MI->addRegOperand(RegNo, isDef, isImp, isKill, isDead);
+                              bool isDead = false, unsigned SubReg = 0) const {
+    MI->addRegOperand(RegNo, isDef, isImp, isKill, isDead, SubReg);
     return *this;
   }