From abbc2dd77908f146f73f4cd1abfdfe47faacf43d Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 19 Dec 2003 05:56:28 +0000
Subject: Add new function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10529 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Transforms/Utils/Local.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'include')

diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h
index 2f83174249..c786c96512 100644
--- a/include/llvm/Transforms/Utils/Local.h
+++ b/include/llvm/Transforms/Utils/Local.h
@@ -20,6 +20,7 @@
 namespace llvm {
 
 class Pass;
+class PHINode;
 
 //===----------------------------------------------------------------------===//
 //  Local constant propagation...
@@ -55,6 +56,15 @@ bool isInstructionTriviallyDead(Instruction *I);
 ///
 bool dceInstruction(BasicBlock::iterator &BBI);
 
+//===----------------------------------------------------------------------===//
+//  PHI Instruction Simplification
+//
+
+/// hasConstantValue - If the specified PHI node always merges together the same
+/// value, return the value, otherwise return null.
+///
+Value *hasConstantValue(PHINode *PN);
+
 
 //===----------------------------------------------------------------------===//
 //  Control Flow Graph Restructuring...
-- 
cgit v1.2.3-70-g09d2