From 13b7d3d499ec63c5f417f7a7246afb77adb63b2e Mon Sep 17 00:00:00 2001
From: Anton Korobeynikov <asl@math.spbu.ru>
Date: Sun, 4 Feb 2007 23:27:42 +0000
Subject: [PATCH] Fixing silly "not-implemented" bug in AsmPrinter. This fixes
 PR1169.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33888 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/AsmPrinter.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp
index ae082a63a29..37fb51f1c56 100644
--- a/lib/CodeGen/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter.cpp
@@ -608,7 +608,8 @@ void AsmPrinter::EmitConstantValueOnly(const Constant *CV) {
     }
   } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
     const TargetData *TD = TM.getTargetData();
-    switch(CE->getOpcode()) {
+    unsigned Opcode = CE->getOpcode();    
+    switch (Opcode) {
     case Instruction::GetElementPtr: {
       // generate a symbolic expression for the byte address
       const Constant *ptrVal = CE->getOperand(0);
@@ -666,9 +667,10 @@ void AsmPrinter::EmitConstantValueOnly(const Constant *CV) {
       break;
     }
     case Instruction::Add:
+    case Instruction::Sub:
       O << "(";
       EmitConstantValueOnly(CE->getOperand(0));
-      O << ") + (";
+      O << (Opcode==Instruction::Add ? ") + (" : ") - (");
       EmitConstantValueOnly(CE->getOperand(1));
       O << ")";
       break;