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Only functions with external linkage can be resolved to function declarations.

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This change fixes programs that have multiple functions named the same thing,
where are least one of them is static/internal.

llvm-svn: 2954
This commit is contained in:
Chris Lattner 2002-07-18 03:01:24 +00:00
parent d703fa0041
commit 1abd637044
1 changed files with 6 additions and 2 deletions
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8
lib/Transforms/IPO/FunctionResolution.cpp
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@ -122,8 +122,11 @@ bool FunctionResolvingPass::run(Module &M) {
SymbolTable::VarMap &Plane = I->second;
for (SymbolTable::type_iterator PI = Plane.begin(), PE = Plane.end();
PI != PE; ++PI) {
const string &Name = PI->first;
Functions[Name].push_back(cast<Function>(PI->second));
Function *F = cast<Function>(PI->second);
assert(PI->first == F->getName() &&
"Function name and symbol table do not agree!");
if (F->hasExternalLinkage()) // Only resolve decls to external fns
Functions[PI->first].push_back(F);
}
}
@ -139,6 +142,7 @@ bool FunctionResolvingPass::run(Module &M) {
Function *Concrete = 0;
for (unsigned i = 0; i < Functions.size(); ) {
if (!Functions[i]->isExternal()) { // Found an implementation
if (Implementation != 0)
assert(Implementation == 0 && "Multiple definitions of the same"
" function. Case not handled yet!");
Implementation = Functions[i];