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DebugInfo: Sink DwarfDebug::addNonArgumentScopeVariable into DwarfFile.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220520 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2014-10-23 22:04:30 +00:00
parent e4e2ea6839
commit 48ba51a8cd
4 changed files with 35 additions and 35 deletions
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32
lib/CodeGen/AsmPrinter/DwarfFile.cpp
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@ -176,4 +176,36 @@ bool DwarfFile::addCurrentFnArgument(DbgVariable *Var, LexicalScope *Scope) {
CurrentFnArguments[ArgNo - 1] = Var;
return true;
}
void DwarfFile::addNonArgumentScopeVariable(LexicalScope *LS,
DbgVariable *Var) {
SmallVectorImpl<DbgVariable *> &Vars = DD.getScopeVariables()[LS];
DIVariable DV = Var->getVariable();
// Variables with positive arg numbers are parameters.
if (unsigned ArgNum = DV.getArgNumber()) {
// Keep all parameters in order at the start of the variable list to ensure
// function types are correct (no out-of-order parameters)
//
// This could be improved by only doing it for optimized builds (unoptimized
// builds have the right order to begin with), searching from the back (this
// would catch the unoptimized case quickly), or doing a binary search
// rather than linear search.
auto I = Vars.begin();
while (I != Vars.end()) {
unsigned CurNum = (*I)->getVariable().getArgNumber();
// A local (non-parameter) variable has been found, insert immediately
// before it.
if (CurNum == 0)
break;
// A later indexed parameter has been found, insert immediately before it.
if (CurNum > ArgNum)
break;
++I;
}
Vars.insert(I, Var);
return;
}
Vars.push_back(Var);
}
}