Author: jmolenda
Date: Thu Dec 21 16:16:04 2017
New Revision: 321328
URL: http://llvm.org/viewvc/llvm-project?rev=321328&view=rev
Log:
Change the default Aarch64 ISA to be v8.2 to correctly decode newer
instructions (e.g. on the new iphones).
<rdar://problem/30585124>
Modified:
lldb/trunk/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp
Modified: lldb/trunk/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp?rev=321328&r1=321327&r2=321328&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp (original)
+++ lldb/trunk/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp Thu Dec
21 16:16:04 2017
@@ -1127,6 +1127,11 @@ DisassemblerLLVMC::DisassemblerLLVMC(con
features_str += "+dspr2,";
}
+ // If any AArch64 variant, enable the ARMv8.2 ISA
+ // extensions so we can disassemble newer instructions.
+ if (triple.getArch() == llvm::Triple::aarch64)
+ features_str += "+v8.2a";
+
m_disasm_ap.reset(new LLVMCDisassembler(triple_str, cpu,
features_str.c_str(),
flavor, *this));
if (!m_disasm_ap->IsValid()) {
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