From: Alexey Samsonov <vonosmas@gmail.com>
Date: Tue, 23 Dec 2014 04:15:53 +0000 (+0000)
Subject: Fix UBSan bootstrap: replace shift of negative value with multiplication.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=2f6ad0c00f2506cc4c4e550be10a2a81ef24ca82;p=oota-llvm.git

Fix UBSan bootstrap: replace shift of negative value with multiplication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224752 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/Mips/Disassembler/MipsDisassembler.cpp b/lib/Target/Mips/Disassembler/MipsDisassembler.cpp
index e5355ef4333..1b955f59dcf 100644
--- a/lib/Target/Mips/Disassembler/MipsDisassembler.cpp
+++ b/lib/Target/Mips/Disassembler/MipsDisassembler.cpp
@@ -1614,7 +1614,7 @@ static DecodeStatus DecodeSimm9SP(MCInst &Inst, unsigned Insn,
   case 511: DecodedValue = -257; break;
   default: DecodedValue = SignExtend32<9>(Insn); break;
   }
-  Inst.addOperand(MCOperand::CreateImm(DecodedValue << 2));
+  Inst.addOperand(MCOperand::CreateImm(DecodedValue * 4));
   return MCDisassembler::Success;
 }