mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-21 18:29:46 +00:00
There are two ways to map a variable to its lexical scope. Lexical scope information is embedded in MDNode describing the variable. It is also available as a part of DebugLoc attached with DBG_VALUE instruction. DebugLoc attached with an instruction is less reliable in optimized code so use information embedded in the MDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135629 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
747032522f
commit
40c7e4142e
@ -614,6 +614,8 @@ namespace llvm {
|
||||
return (getUnsignedField(6) & FlagArtificial) != 0;
|
||||
}
|
||||
|
||||
/// getInlinedAt - If this variable is inlined then return inline location.
|
||||
MDNode *getInlinedAt();
|
||||
|
||||
/// Verify - Verify that a variable descriptor is well formed.
|
||||
bool Verify() const;
|
||||
|
@ -116,6 +116,12 @@ unsigned DIVariable::getNumAddrElements() const {
|
||||
return DbgNode->getNumOperands()-8;
|
||||
}
|
||||
|
||||
/// getInlinedAt - If this variable is inlined then return inline location.
|
||||
MDNode *DIVariable::getInlinedAt() {
|
||||
if (getVersion() <= llvm::LLVMDebugVersion9)
|
||||
return NULL;
|
||||
return dyn_cast_or_null<MDNode>(DbgNode->getOperand(7));
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Predicates
|
||||
|
@ -1410,8 +1410,16 @@ DwarfDebug::collectVariableInfo(const MachineFunction *MF,
|
||||
if (DV.getTag() == dwarf::DW_TAG_arg_variable &&
|
||||
DISubprogram(DV.getContext()).describes(MF->getFunction()))
|
||||
Scope = CurrentFnDbgScope;
|
||||
else
|
||||
Scope = findDbgScope(MInsn->getDebugLoc());
|
||||
else {
|
||||
if (DV.getVersion() <= LLVMDebugVersion9)
|
||||
Scope = findDbgScope(MInsn->getDebugLoc());
|
||||
else {
|
||||
if (MDNode *IA = DV.getInlinedAt())
|
||||
Scope = InlinedDbgScopeMap.lookup(DebugLoc::getFromDILocation(IA));
|
||||
else
|
||||
Scope = DbgScopeMap.lookup(cast<MDNode>(DV->getOperand(1)));
|
||||
}
|
||||
}
|
||||
// If variable scope is not found then skip this variable.
|
||||
if (!Scope)
|
||||
continue;
|
||||
|
Loading…
Reference in New Issue
Block a user