Add MCInstrAnalysis class. This allows the targets to specify own versions of MCInstrDescs functions.
- Add overrides for ARM.
- Teach llvm-objdump to use this instead of plain MCInstrDesc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137059 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCInstrAnalysis.cpp b/lib/MC/MCInstrAnalysis.cpp
new file mode 100644
index 0000000..03a35c5
--- /dev/null
+++ b/lib/MC/MCInstrAnalysis.cpp
@@ -0,0 +1,20 @@
+//===-- MCInstrAnalysis.cpp - InstrDesc target hooks ------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCInstrAnalysis.h"
+using namespace llvm;
+
+uint64_t MCInstrAnalysis::evaluateBranch(const MCInst &Inst, uint64_t Addr,
+ uint64_t Size) const {
+ if (Info->get(Inst.getOpcode()).OpInfo[0].OperandType != MCOI::OPERAND_PCREL)
+ return -1ULL;
+
+ int64_t Imm = Inst.getOperand(0).getImm();
+ return Addr+Size+Imm;
+}