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Clean up uses of switch instructions so they are not dependent on the operand ordering. Patch by Stepan Dyatkovskiy.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140803 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman
2011-09-29 20:21:17 +00:00
parent 0066f9290e
commit bb5a7442e3
8 changed files with 61 additions and 33 deletions
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17
lib/Target/CppBackend/CPPBackend.cpp
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@@ -154,7 +154,7 @@ namespace {
void printFunctionHead(const Function *F);
void printFunctionBody(const Function *F);
void printInstruction(const Instruction *I, const std::string& bbname);
std::string getOpName(Value*);
std::string getOpName(const Value*);
void printModuleBody();
};
@@ -979,7 +979,7 @@ void CppWriter::printVariableBody(const GlobalVariable *GV) {
}
}
std::string CppWriter::getOpName(Value* V) {
std::string CppWriter::getOpName(const Value* V) {
if (!isa<Instruction>(V) || DefinedValues.find(V) != DefinedValues.end())
return getCppName(V);
@@ -1044,14 +1044,17 @@ void CppWriter::printInstruction(const Instruction *I,
case Instruction::Switch: {
const SwitchInst *SI = cast<SwitchInst>(I);
Out << "SwitchInst* " << iName << " = SwitchInst::Create("
<< opNames[0] << ", "
<< opNames[1] << ", "
<< getOpName(SI->getCondition()) << ", "
<< getOpName(SI->getDefaultDest()) << ", "
<< SI->getNumCases() << ", " << bbname << ");";
nl(Out);
for (unsigned i = 2; i != SI->getNumOperands(); i += 2) {
unsigned NumCases = SI->getNumCases();
for (unsigned i = 1; i < NumCases; ++i) {
const ConstantInt* CaseVal = SI->getCaseValue(i);
const BasicBlock* BB = SI->getSuccessor(i);
Out << iName << "->addCase("
<< opNames[i] << ", "
<< opNames[i+1] << ");";
<< getOpName(CaseVal) << ", "
<< getOpName(BB) << ");";
nl(Out);
}
break;