Fix physical register liveness calculations:

+ Take account of clobbers
+ Give outputs priority over inputs since they happen later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168360 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 4 deletions

diff --git a/include/llvm/CodeGen/MachineInstrBundle.h b/include/llvm/CodeGen/MachineInstrBundle.h
index 854ba06209..3c60ad1f29 100644
--- a/include/llvm/CodeGen/MachineInstrBundle.h
+++ b/include/llvm/CodeGen/MachineInstrBundle.h
@@ -149,16 +149,13 @@ public:
   /// PhysRegInfo - Information about a physical register used by a set of
   /// operands.
   struct PhysRegInfo {
-    /// Clobbers - Reg or an overlapping register is defined, or a regmask 
+    /// Clobbers - Reg or an overlapping register is defined, or a regmask
     /// clobbers Reg.
     bool Clobbers;
 
     /// Defines - Reg or a super-register is defined.
     bool Defines;
 
-    /// DefinesOverlap - Reg or an overlapping register is defined.
-    bool DefinesOverlap;
-
     /// Reads - Read or a super-register is read.
     bool Reads;