From ab6adeb8a148ddd313e1220939bd2eb3bc63a328 Mon Sep 17 00:00:00 2001
From: "Duncan P. N. Exon Smith" <dexonsmith@apple.com>
Date: Thu, 31 Jul 2014 18:33:12 +0000
Subject: UseListOrder: Handle self-users

Correctly sort self-users (such as PHI nodes).  I added a targeted test
in `test/Bitcode/use-list-order.ll` and the final missing RUN line to
tests in `test/Assembly`.

This is part of PR5680.

llvm-svn: 214417
---
 llvm/lib/Bitcode/Writer/ValueEnumerator.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'llvm/lib/Bitcode')

diff --git a/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp b/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
index 2ac53fea8a9..4ed739ebe4a 100644
--- a/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
+++ b/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
@@ -166,13 +166,13 @@ static void predictValueUseListOrderImpl(const Value *V, const Function *F,
 
     // If ID is 4, then expect: 7 6 5 1 2 3.
     if (LID < RID) {
-      if (RID < ID)
+      if (RID <= ID)
         if (!IsGlobalValue) // GlobalValue uses don't get reversed.
           return true;
       return false;
     }
     if (RID < LID) {
-      if (LID < ID)
+      if (LID <= ID)
         if (!IsGlobalValue) // GlobalValue uses don't get reversed.
           return false;
       return true;
@@ -180,7 +180,7 @@ static void predictValueUseListOrderImpl(const Value *V, const Function *F,
 
     // LID and RID are equal, so we have different operands of the same user.
     // Assume operands are added in order for all instructions.
-    if (LID < ID)
+    if (LID <= ID)
       if (!IsGlobalValue) // GlobalValue uses don't get reversed.
         return LU->getOperandNo() < RU->getOperandNo();
     return LU->getOperandNo() > RU->getOperandNo();
-- 
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