From: Matthias Braun <matze@braunis.de>
Date: Wed, 10 Dec 2014 01:12:33 +0000 (+0000)
Subject: LiveInterval: Introduce LiveQuery accessor for dead or live out values.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c080fce9d5b6db3c91bdc4ec18987ad6b7782b3c;p=oota-llvm.git

LiveInterval: Introduce LiveQuery accessor for dead or live out values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223885 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/CodeGen/LiveInterval.h b/include/llvm/CodeGen/LiveInterval.h
index 8b3bb41b787..18700801ea2 100644
--- a/include/llvm/CodeGen/LiveInterval.h
+++ b/include/llvm/CodeGen/LiveInterval.h
@@ -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 {