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Remap the call sites of a shared function in interrupt line functions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96591 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjiv Gupta 2010-02-18 18:00:35 +00:00
parent d6d9fb503d
commit 7310fe4a69
2 changed files with 27 additions and 0 deletions
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24
lib/Target/PIC16/PIC16Passes/PIC16Cloner.cpp
View File

@ -270,3 +270,27 @@ PIC16Cloner::cloneFunction(Function *OrgF) {
}
// Remap the call sites of shared functions, that are in IL.
// Change the IL call site of a shared function to its clone.
//
void PIC16Cloner::
remapAllSites(Function *Caller, Function *OrgF, Function *Clone) {
// First find the caller to update. If the caller itself is cloned
// then use the cloned caller. Otherwise use it.
cloned_map_iterator cm_it = ClonedFunctionMap.find(Caller);
if (cm_it != ClonedFunctionMap.end())
Caller = cm_it->second;
// For the lack of a better call site finding mechanism, iterate over
// all insns to find the uses of original fn.
for (Function::iterator BI = Caller->begin(); BI != Caller->end(); ++BI) {
BasicBlock &BB = *BI;
for (BasicBlock::iterator II = BB.begin(); II != BB.end(); ++II) {
if (II->getNumOperands() > 0 && II->getOperand(0) == OrgF)
II->setOperand(0, Clone);
}
}
}

3
lib/Target/PIC16/PIC16Passes/PIC16Cloner.h
View File

@ -55,6 +55,9 @@ namespace llvm {
// Clone all shared functions.
void cloneSharedFunctions(CallGraphNode *isrCGN);
// Remap all call sites to the shared function.
void remapAllSites(Function *Caller, Function *OrgF, Function *Clone);
// Error reporting for PIC16Pass
void reportError(string ErrorString, vector<string> &Values);
void reportError(string ErrorString);