From ccaee651890a01e225e61f4dc906bed1bfd40ac6 Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Tue, 31 Aug 2010 07:48:34 +0000
Subject: [PATCH] Rename ValuePropagation to a more descriptive
 CorrelatedValuePropagation.

llvm-svn: 112591
---
 include/llvm/LinkAllPasses.h                  |  2 +-
 include/llvm/Transforms/Scalar.h              |  2 +-
 .../Scalar/CorrelatedValuePropagation.cpp     | 24 +++++++++----------
 test/Transforms/ValuePropagation/basic.ll     |  2 +-
 4 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/include/llvm/LinkAllPasses.h b/include/llvm/LinkAllPasses.h
index ffb4da6688d..35dab62143d 100644
--- a/include/llvm/LinkAllPasses.h
+++ b/include/llvm/LinkAllPasses.h
@@ -146,7 +146,7 @@ namespace {
       (void) llvm::createLintPass();
       (void) llvm::createSinkingPass();
       (void) llvm::createLowerAtomicPass();
-      (void) llvm::createValuePropagationPass();
+      (void) llvm::createCorrelatedValuePropagationPass();
 
       (void)new llvm::IntervalPartition();
       (void)new llvm::FindUsedTypes();
diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h
index 0320b12627e..0c35d7e01fa 100644
--- a/include/llvm/Transforms/Scalar.h
+++ b/include/llvm/Transforms/Scalar.h
@@ -327,7 +327,7 @@ Pass *createLowerAtomicPass();
 //
 // ValuePropagation - Propagate CFG-derived value information
 //
-Pass *createValuePropagationPass();
+Pass *createCorrelatedValuePropagationPass();
 
 } // End llvm namespace
 
diff --git a/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp b/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
index 8f398883a2c..9616b9b6ade 100644
--- a/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
+++ b/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
@@ -1,4 +1,4 @@
-//===- ValuePropagation.cpp - Propagate information derived control flow --===//
+//===- CorrelatedValuePropagation.cpp - Propagate CFG-derived info --------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,11 +7,11 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file implements the Value Propagation pass.
+// This file implements the Correlated Value Propagation pass.
 //
 //===----------------------------------------------------------------------===//
 
-#define DEBUG_TYPE "value-propagation"
+#define DEBUG_TYPE "correlated-value-propagation"
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/Function.h"
 #include "llvm/Instructions.h"
@@ -25,7 +25,7 @@ STATISTIC(NumPhis,    "Number of phis propagated");
 STATISTIC(NumSelects, "Number of selects propagated");
 
 namespace {
-  class ValuePropagation : public FunctionPass {
+  class CorrelatedValuePropagation : public FunctionPass {
     LazyValueInfo *LVI;
     
     bool processSelect(SelectInst *SI);
@@ -33,7 +33,7 @@ namespace {
     
   public:
     static char ID;
-    ValuePropagation(): FunctionPass(ID) { }
+    CorrelatedValuePropagation(): FunctionPass(ID) { }
     
     bool runOnFunction(Function &F);
     
@@ -43,16 +43,16 @@ namespace {
   };
 }
 
-char ValuePropagation::ID = 0;
-INITIALIZE_PASS(ValuePropagation, "value-propagation",
+char CorrelatedValuePropagation::ID = 0;
+INITIALIZE_PASS(CorrelatedValuePropagation, "correlated-propagation",
                 "Value Propagation", false, false);
 
 // Public interface to the Value Propagation pass
-Pass *llvm::createValuePropagationPass() {
-  return new ValuePropagation();
+Pass *llvm::createCorrelatedValuePropagationPass() {
+  return new CorrelatedValuePropagation();
 }
 
-bool ValuePropagation::processSelect(SelectInst *S) {
+bool CorrelatedValuePropagation::processSelect(SelectInst *S) {
   if (S->getType()->isVectorTy()) return false;
   
   Constant *C = LVI->getConstant(S->getOperand(0), S->getParent());
@@ -69,7 +69,7 @@ bool ValuePropagation::processSelect(SelectInst *S) {
   return true;
 }
 
-bool ValuePropagation::processPHI(PHINode *P) {
+bool CorrelatedValuePropagation::processPHI(PHINode *P) {
   bool Changed = false;
   
   BasicBlock *BB = P->getParent();
@@ -97,7 +97,7 @@ bool ValuePropagation::processPHI(PHINode *P) {
   return Changed;
 }
 
-bool ValuePropagation::runOnFunction(Function &F) {
+bool CorrelatedValuePropagation::runOnFunction(Function &F) {
   LVI = &getAnalysis<LazyValueInfo>();
   
   bool Changed = false;
diff --git a/test/Transforms/ValuePropagation/basic.ll b/test/Transforms/ValuePropagation/basic.ll
index 2cb6afc721c..b210d37f1b8 100644
--- a/test/Transforms/ValuePropagation/basic.ll
+++ b/test/Transforms/ValuePropagation/basic.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -value-propagation -S | FileCheck %s
+; RUN: opt < %s -correlated-propagation -S | FileCheck %s
 ; PR2581
 
 ; CHECK: @test1