Simplify handling of llvm.dbg intrinsic operands to one spot.

llvm-svn: 26987

1 files changed, 55 insertions, 0 deletions

diff --git a/llvm/lib/VMCore/IntrinsicInst.cpp b/llvm/lib/VMCore/IntrinsicInst.cpp
new file mode 100644
index 00000000000..e34cd5bbefd
--- /dev/null
+++ b/llvm/lib/VMCore/IntrinsicInst.cpp
@@ -0,0 +1,55 @@
+//===-- InstrinsicInst.cpp - Intrinsic Instruction Wrappers -----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/IntrinsicInst.h"
+
+#include "llvm/Constants.h"
+#include "llvm/GlobalVariable.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->getOpcode() == Instruction::Cast)
+      return CE->getOperand(0);
+  return NULL;
+}
+
+Value *DbgInfoIntrinsic::StripCast(Value *C) {
+  if (Value *CO = CastOperand(C)) {
+      return StripCast(CO);
+  } else if (GlobalVariable *GV = dyn_cast<GlobalVariable>(C)) {
+    if (GV->hasInitializer())
+      if (Value *CO = CastOperand(GV->getInitializer()))
+        return StripCast(CO);
+  }
+  return C;
+}
+
+//===----------------------------------------------------------------------===//
+/// DbgStopPointInst - This represents the llvm.dbg.stoppoint instruction.
+///
+
+std::string DbgStopPointInst::getFileName() const {
+  GlobalVariable *GV = cast<GlobalVariable>(getContext());
+  ConstantStruct *CS = cast<ConstantStruct>(GV->getInitializer());
+  return CS->getOperand(4)->getStringValue();
+}
+
+std::string DbgStopPointInst::getDirectory() const {
+  GlobalVariable *GV = cast<GlobalVariable>(getContext());
+  ConstantStruct *CS = cast<ConstantStruct>(GV->getInitializer());
+  return CS->getOperand(5)->getStringValue();
+}
+
+//===----------------------------------------------------------------------===//