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Implement CodeGen/CBackend/2005-02-14-VolatileOperations.ll

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Volatile loads and stores need to emit volatile pointer operations in C.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20177 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-02-14 16:47:52 +00:00
parent ee6cfda17c
commit 9d30e22da0
2 changed files with 30 additions and 0 deletions
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15
lib/Target/CBackend/CBackend.cpp
View File

@ -1655,12 +1655,27 @@ void CWriter::printIndexingExpression(Value *Ptr, gep_type_iterator I,
void CWriter::visitLoadInst(LoadInst &I) {
Out << "*";
if (I.isVolatile()) {
Out << "((volatile ";
printType(Out, I.getOperand(0)->getType());
Out << ")";
}
writeOperand(I.getOperand(0));
if (I.isVolatile())
Out << ")";
}
void CWriter::visitStoreInst(StoreInst &I) {
Out << "*";
if (I.isVolatile()) {
Out << "((volatile ";
printType(Out, I.getPointerOperand()->getType());
Out << ")";
}
writeOperand(I.getPointerOperand());
if (I.isVolatile()) Out << ")";
Out << " = ";
writeOperand(I.getOperand(0));
}

15
lib/Target/CBackend/Writer.cpp
View File

@ -1655,12 +1655,27 @@ void CWriter::printIndexingExpression(Value *Ptr, gep_type_iterator I,
void CWriter::visitLoadInst(LoadInst &I) {
Out << "*";
if (I.isVolatile()) {
Out << "((volatile ";
printType(Out, I.getOperand(0)->getType());
Out << ")";
}
writeOperand(I.getOperand(0));
if (I.isVolatile())
Out << ")";
}
void CWriter::visitStoreInst(StoreInst &I) {
Out << "*";
if (I.isVolatile()) {
Out << "((volatile ";
printType(Out, I.getPointerOperand()->getType());
Out << ")";
}
writeOperand(I.getPointerOperand());
if (I.isVolatile()) Out << ")";
Out << " = ";
writeOperand(I.getOperand(0));
}