[llvm] r303120 - [APInt] Simplify a for loop initialization based on the fact that 'n' is known to be 1 by an earlier 'if'.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Mon May 15 17:01:03 2017
New Revision: 303120

URL: http://llvm.org/viewvc/llvm-project?rev=303120&view=rev
Log:
[APInt] Simplify a for loop initialization based on the fact that 'n' is known to be 1 by an earlier 'if'.

Modified:
    llvm/trunk/lib/Support/APInt.cpp

Modified: llvm/trunk/lib/Support/APInt.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APInt.cpp?rev=303120&r1=303119&r2=303120&view=diff
==============================================================================
--- llvm/trunk/lib/Support/APInt.cpp (original)
+++ llvm/trunk/lib/Support/APInt.cpp Mon May 15 17:01:03 2017
@@ -1476,7 +1476,7 @@ void APInt::divide(const APInt &LHS, uns
   if (n == 1) {
     uint32_t divisor = V[0];
     uint32_t remainder = 0;
-    for (int i = m+n-1; i >= 0; i--) {
+    for (int i = m; i >= 0; i--) {
       uint64_t partial_dividend = Make_64(remainder, U[i]);
       if (partial_dividend == 0) {
         Q[i] = 0;