[llvm] r223885 - LiveInterval: Introduce LiveQuery accessor for dead or live out values.

[Matthias Braun]

Author: matze
Date: Tue Dec  9 19:12:33 2014
New Revision: 223885

URL: http://llvm.org/viewvc/llvm-project?rev=223885&view=rev
Log:
LiveInterval: Introduce LiveQuery accessor for dead or live out values.

Modified:
    llvm/trunk/include/llvm/CodeGen/LiveInterval.h

Modified: llvm/trunk/include/llvm/CodeGen/LiveInterval.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/LiveInterval.h?rev=223885&r1=223884&r2=223885&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/LiveInterval.h (original)
+++ llvm/trunk/include/llvm/CodeGen/LiveInterval.h Tue Dec  9 19:12:33 2014
@@ -119,6 +119,12 @@ namespace llvm {
       return isDeadDef() ? nullptr : LateVal;
     }
 
+    /// Returns the value alive at the end of the instruction, if any. This can
+    /// be a live-through value, a live def or a dead def.
+    VNInfo *valueOutOrDead() const {
+      return LateVal;
+    }
+
     /// Return the value defined by this instruction, if any. This includes
     /// dead defs, it is the value created by the instruction's def operands.
     VNInfo *valueDefined() const {