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add a method to decode a DILocation into a NewDebugLoc.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100081 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-04-01 03:55:42 +00:00
parent ec306a9771
commit 68c5513499
2 changed files with 19 additions and 1 deletions
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5
include/llvm/Support/DebugLoc.h
View File

@ -40,6 +40,9 @@ namespace llvm {
static NewDebugLoc get(unsigned Line, unsigned Col,
MDNode *Scope, MDNode *InlinedAt);
/// getFromDILocation - Translate the DILocation quad into a NewDebugLoc.
static NewDebugLoc getFromDILocation(MDNode *N);
/// isUnknown - Return true if this is an unknown location.
bool isUnknown() const { return ScopeIdx == 0; }
@ -96,7 +99,7 @@ namespace llvm {
bool operator!=(const DebugLoc &DL) const { return !(*this == DL); }
};
/// DebugLocTracker - This class tracks debug location information.
/// DebugLocTracker - This class tracks debug location information.
///
struct DebugLocTracker {
/// DebugLocations - A vector of unique DebugLocTuple's.

15
lib/VMCore/DebugLoc.cpp
View File

@ -111,6 +111,21 @@ MDNode *NewDebugLoc::getAsMDNode(const LLVMContext &Ctx) const {
return MDNode::get(Ctx2, &Elts[0], 4);
}
/// getFromDILocation - Translate the DILocation quad into a NewDebugLoc.
NewDebugLoc NewDebugLoc::getFromDILocation(MDNode *N) {
if (N == 0 || N->getNumOperands() != 4) return NewDebugLoc();
MDNode *Scope = dyn_cast_or_null<MDNode>(N->getOperand(2));
if (Scope == 0) return NewDebugLoc();
unsigned LineNo = 0, ColNo = 0;
if (ConstantInt *Line = dyn_cast_or_null<ConstantInt>(N->getOperand(0)))
LineNo = Line->getZExtValue();
if (ConstantInt *Col = dyn_cast_or_null<ConstantInt>(N->getOperand(1)))
ColNo = Col->getZExtValue();
return get(LineNo, ColNo, Scope, dyn_cast_or_null<MDNode>(N->getOperand(3)));
}
//===----------------------------------------------------------------------===//
// LLVMContextImpl Implementation