ffd1746d03
This commit merges the latest LLVM sources from the vendor space. It also updates the build glue to match the new sources. Clang's version number is changed to match LLVM's, which means /usr/include/clang/2.0 has been renamed to /usr/include/clang/2.8. Obtained from: projects/clangbsd
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
//===-- InstrinsicInst.cpp - Intrinsic Instruction Wrappers -----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements methods that make it really easy to deal with intrinsic
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// functions.
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//
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// All intrinsic function calls are instances of the call instruction, so these
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// are all subclasses of the CallInst class. Note that none of these classes
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// has state or virtual methods, which is an important part of this gross/neat
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// hack working.
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//
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// In some cases, arguments to intrinsics need to be generic and are defined as
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// type pointer to empty struct { }*. To access the real item of interest the
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// cast instruction needs to be stripped away.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IntrinsicInst.h"
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#include "llvm/Constants.h"
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#include "llvm/GlobalVariable.h"
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#include "llvm/Metadata.h"
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using namespace llvm;
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//===----------------------------------------------------------------------===//
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/// DbgInfoIntrinsic - This is the common base class for debug info intrinsics
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///
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static Value *CastOperand(Value *C) {
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if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C))
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if (CE->isCast())
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return CE->getOperand(0);
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return NULL;
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}
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Value *DbgInfoIntrinsic::StripCast(Value *C) {
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if (Value *CO = CastOperand(C)) {
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C = StripCast(CO);
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} else if (GlobalVariable *GV = dyn_cast<GlobalVariable>(C)) {
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if (GV->hasInitializer())
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if (Value *CO = CastOperand(GV->getInitializer()))
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C = StripCast(CO);
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}
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return dyn_cast<GlobalVariable>(C);
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}
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//===----------------------------------------------------------------------===//
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/// DbgDeclareInst - This represents the llvm.dbg.declare instruction.
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///
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Value *DbgDeclareInst::getAddress() const {
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if (MDNode* MD = cast_or_null<MDNode>(getArgOperand(0)))
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return MD->getOperand(0);
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else
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return NULL;
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}
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//===----------------------------------------------------------------------===//
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/// DbgValueInst - This represents the llvm.dbg.value instruction.
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///
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const Value *DbgValueInst::getValue() const {
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return cast<MDNode>(getArgOperand(0))->getOperand(0);
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}
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Value *DbgValueInst::getValue() {
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return cast<MDNode>(getArgOperand(0))->getOperand(0);
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}
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