From 772cf466dab6beadf3cab40722cf6cf10342f808 Mon Sep 17 00:00:00 2001 From: Gordon Keiser Date: Thu, 28 Mar 2013 19:22:28 +0000 Subject: Fix issue with disassembler decoding CBZ/CBNZ immediates as negatives when the upper bit is set. They should always be zero-extended, not sign extended. Added test case. llvm-svn: 178275 --- llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp') diff --git a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index ec895c3930e..2e009e55e3b 100644 --- a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -3049,9 +3049,9 @@ static DecodeStatus DecodeT2BROperand(MCInst &Inst, unsigned Val, static DecodeStatus DecodeThumbCmpBROperand(MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder) { - if (!tryAddingSymbolicOperand(Address, Address + SignExtend32<7>(Val<<1) + 4, + if (!tryAddingSymbolicOperand(Address, Address + (Val<<1) + 4, true, 2, Inst, Decoder)) - Inst.addOperand(MCOperand::CreateImm(SignExtend32<7>(Val << 1))); + Inst.addOperand(MCOperand::CreateImm(Val << 1)); return MCDisassembler::Success; } -- cgit v1.2.3