From 87d5e72f1d1ec87799ea1966eb189931b17c2006 Mon Sep 17 00:00:00 2001 From: David Majnemer <david.majnemer@gmail.com> Date: Fri, 24 Jun 2016 21:15:36 +0000 Subject: [PATCH] [APInt] Don't shift into the sign bit git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273727 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Support/APInt.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index 348f807c91a..9eed2147746 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -880,7 +880,7 @@ double APInt::roundToDouble(bool isSigned) const { // It is wrong to optimize getWord(0) to VAL; there might be more than one word. if (isSingleWord() || getActiveBits() <= APINT_BITS_PER_WORD) { if (isSigned) { - int64_t sext = (int64_t(getWord(0)) << (64-BitWidth)) >> (64-BitWidth); + int64_t sext = SignExtend64(getWord(0), BitWidth); return double(sext); } else return double(getWord(0));