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Simplify and delay extracting DebugLoc elements, scope and InlinedAt, as much as possible.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135124 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2011-07-14 01:14:57 +00:00
parent 7332e6ee25
commit d77ec6208c
4 changed files with 34 additions and 19 deletions
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16
lib/VMCore/DebugLoc.cpp
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@@ -128,6 +128,22 @@ DebugLoc DebugLoc::getFromDILocation(MDNode *N) {
return get(LineNo, ColNo, Scope, dyn_cast_or_null<MDNode>(N->getOperand(3)));
}
/// getFromDILexicalBlock - Translate the DILexicalBlock into a DebugLoc.
DebugLoc DebugLoc::getFromDILexicalBlock(MDNode *N) {
if (N == 0 || N->getNumOperands() < 3) return DebugLoc();
MDNode *Scope = dyn_cast_or_null<MDNode>(N->getOperand(1));
if (Scope == 0) return DebugLoc();
unsigned LineNo = 0, ColNo = 0;
if (ConstantInt *Line = dyn_cast_or_null<ConstantInt>(N->getOperand(2)))
LineNo = Line->getZExtValue();
if (ConstantInt *Col = dyn_cast_or_null<ConstantInt>(N->getOperand(3)))
ColNo = Col->getZExtValue();
return get(LineNo, ColNo, Scope, NULL);
}
//===----------------------------------------------------------------------===//
// DenseMap specialization
//===----------------------------------------------------------------------===//