From 47ccfa7de8ef2b1226a1f68c86cea961f007bbe5 Mon Sep 17 00:00:00 2001 From: Justin Bogner Date: Thu, 14 May 2015 23:54:49 +0000 Subject: [PATCH] MC: Avoid some UB caused by left shifting a negative value. NFC git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237408 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/MC/MachObjectWriter.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/MC/MachObjectWriter.cpp b/lib/MC/MachObjectWriter.cpp index dc68a89e6ea..248775c625e 100644 --- a/lib/MC/MachObjectWriter.cpp +++ b/lib/MC/MachObjectWriter.cpp @@ -637,7 +637,7 @@ void MachObjectWriter::ComputeSymbolTable( unsigned Index = Rel.Sym->getIndex(); assert(isInt<24>(Index)); if (IsLittleEndian) - Rel.MRE.r_word1 = (Rel.MRE.r_word1 & (-1 << 24)) | Index | (1 << 27); + Rel.MRE.r_word1 = (Rel.MRE.r_word1 & (~0U << 24)) | Index | (1 << 27); else Rel.MRE.r_word1 = (Rel.MRE.r_word1 & 0xff) | Index << 8 | (1 << 4); } -- 2.34.1