From 60c0a6a74baf6750d87ab69f00c96f120cefa776 Mon Sep 17 00:00:00 2001 From: Reid Spencer Date: Wed, 21 Feb 2007 05:44:56 +0000 Subject: [PATCH] Fix the carry in addition. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34465 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Support/APInt.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index 27be51ce4d9..ae7cc439d3d 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -192,9 +192,9 @@ APInt& APInt::operator--() { static uint64_t add(uint64_t dest[], uint64_t x[], uint64_t y[], uint32_t len) { uint64_t carry = 0; for (uint32_t i = 0; i< len; ++i) { - uint64_t save = std::max(x[i],y[i]); dest[i] = x[i] + y[i] + carry; - carry = dest[i] < save ? 1 : 0; + uint64_t limit = std::min(x[i],y[i]); + carry = dest[i] < limit || (carry && dest[i] == limit); } return carry; }