mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
3a32865d58
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare. It also strips old llvm.dbg.declare intrinsics that did not pass metadata as the first argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93531 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
//===-- InstrinsicInst.cpp - Intrinsic Instruction Wrappers -----*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements methods that make it really easy to deal with intrinsic
|
|
// functions.
|
|
//
|
|
// All intrinsic function calls are instances of the call instruction, so these
|
|
// are all subclasses of the CallInst class. Note that none of these classes
|
|
// has state or virtual methods, which is an important part of this gross/neat
|
|
// hack working.
|
|
//
|
|
// In some cases, arguments to intrinsics need to be generic and are defined as
|
|
// type pointer to empty struct { }*. To access the real item of interest the
|
|
// cast instruction needs to be stripped away.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/IntrinsicInst.h"
|
|
#include "llvm/Constants.h"
|
|
#include "llvm/GlobalVariable.h"
|
|
#include "llvm/Analysis/ValueTracking.h"
|
|
#include "llvm/CodeGen/MachineModuleInfo.h"
|
|
using namespace llvm;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
/// DbgInfoIntrinsic - This is the common base class for debug info intrinsics
|
|
///
|
|
|
|
static Value *CastOperand(Value *C) {
|
|
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C))
|
|
if (CE->isCast())
|
|
return CE->getOperand(0);
|
|
return NULL;
|
|
}
|
|
|
|
Value *DbgInfoIntrinsic::StripCast(Value *C) {
|
|
if (Value *CO = CastOperand(C)) {
|
|
C = StripCast(CO);
|
|
} else if (GlobalVariable *GV = dyn_cast<GlobalVariable>(C)) {
|
|
if (GV->hasInitializer())
|
|
if (Value *CO = CastOperand(GV->getInitializer()))
|
|
C = StripCast(CO);
|
|
}
|
|
return dyn_cast<GlobalVariable>(C);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
/// DbgDeclareInst - This represents the llvm.dbg.declare instruction.
|
|
///
|
|
|
|
Value *DbgDeclareInst::getAddress() const {
|
|
if (MDNode* MD = cast_or_null<MDNode>(getOperand(1)))
|
|
return MD->getOperand(0);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
/// DbgValueInst - This represents the llvm.dbg.value instruction.
|
|
///
|
|
|
|
const Value *DbgValueInst::getValue() const {
|
|
return cast<MDNode>(getOperand(1))->getOperand(0);
|
|
}
|
|
|
|
Value *DbgValueInst::getValue() {
|
|
return cast<MDNode>(getOperand(1))->getOperand(0);
|
|
}
|