Missed feature in llvm::getLocationInfo (can't retrieve function's debugging information) #9584
Description
| Bugzilla Link | 9212 |
| Resolution | FIXED |
| Resolved on | Feb 17, 2011 05:40 |
| Version | trunk |
| OS | All |
| Attachments | My simple modification |
| Reporter | LLVM Bugzilla Contributor |
Extended Description
'llvm::getLocationInfo' can't retrieve the dbg info of 'Function' (while instructions and global variables are working) because it looks like that it wasn't simply implemented yet. I don't have an access to update the patch, so I'd like to let you know via this system.
Z:\dev\my-llvm\lib\Analysis>diff -u DebugInfo.cpp DebugInfo_old.cpp
--- DebugInfo.cpp 2011-02-09 15:15:39 -0500
+++ DebugInfo_old.cpp 2011-02-13 23:19:27 -0500
@@ -1592,23 +1592,6 @@
return 0;
}
-/// Find the debug info descriptor corresponding to this function.
-static Value *findDbgSubprogramDeclare(Function *V) {
- const Module *M = V->getParent();
- NamedMDNode *NMD = M->getNamedMetadata("llvm.dbg.sp");
- if (!NMD)
- return 0;
- for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
- DIDescriptor DIG(cast(NMD->getOperand(i)));
- if (!DIG.isSubprogram())
-
continue; - if (DISubprogram(DIG).getFunction() == V)
-
return DIG; - }
- return 0;
-}
/// Finds the llvm.dbg.declare intrinsic corresponding to this value if any.
/// It looks through pointer casts too.
static const DbgDeclareInst *findDbgDeclare(const Value *V) {
@@ -1646,17 +1629,6 @@
StringRef D = Var.getDisplayName();
if (!D.empty())
-
DisplayName = D; - LineNo = Var.getLineNumber();
- Unit = Var.getCompileUnit();
- TypeD = Var.getType();
- } else if (Function F = dyn_cast(const_cast<Value>(V))){
- Value *DIF = findDbgSubprogramDeclare(F);
- if (!DIF) return false;
- DISubprogram Var(cast(DIF));
- StringRef D = Var.getDisplayName();
- if (!D.empty())
DisplayName = D;
LineNo = Var.getLineNumber();
Unit = Var.getCompileUnit();