commit d73bf5987a0855e677fcefba74334c6a85b0b326
author John McCall <rjmccall@apple.com> Thu Dec 24 08:52:06 2009 +0000
committer John McCall <rjmccall@apple.com> Thu Dec 24 08:52:06 2009 +0000
tree cbebc11d519fc91ad59f3b570df7c0c03770353e
parent b97a21cb2b2fccdfdcafa5cb4b8a8c7d4f9b6508

Set Remainder before Quotient in case Quotient and LHS alias.  The new
order should be immune to such problems.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92124 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Support/APInt.cpp

diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp
index 56d4773..9532e1e 100644
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -2012,8 +2012,8 @@
   }
 
   if (lhsWords < rhsWords || LHS.ult(RHS)) {
-    Quotient = 0;               // X / Y ===> 0, iff X < Y
     Remainder = LHS;            // X % Y ===> X, iff X < Y
+    Quotient = 0;               // X / Y ===> 0, iff X < Y
     return;
   }