- for (Function::const_iterator BB = F->begin(), BBE = F->end(); BB !=BBE; ++BB)
- for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
- if (const CallInst *callInst = dyn_cast<CallInst>(&*I))
- {
- unsigned numOperands = callInst->getNumOperands() - 1;
- int numExtra = (int)numOperands-frameInfo.getNumFixedOutgoingArgs();
- if (numExtra <= 0)
- continue;
-
- unsigned sizeForThisCall;
- if (frameInfo.argsOnStackHaveFixedSize())
- {
- int argSize = frameInfo.getSizeOfEachArgOnStack();
- sizeForThisCall = numExtra * (unsigned) argSize;
- }
- else
- {
- assert(0 && "UNTESTED CODE: Size per stack argument is not "
- "fixed on this architecture: use actual arg sizes to "
- "compute MaxOptionalArgsSize");
- sizeForThisCall = 0;
- for (unsigned i = 0; i < numOperands; ++i)
- sizeForThisCall += target.getTargetData().getTypeSize(callInst->
- getOperand(i)->getType());
- }
-
- if (maxSize < sizeForThisCall)
- maxSize = sizeForThisCall;
-
- if ((int)maxOptionalNumArgs < numExtra)
- maxOptionalNumArgs = (unsigned) numExtra;
- }
-
- return maxSize;
-}
-
-// Align data larger than one L1 cache line on L1 cache line boundaries.
-// Align all smaller data on the next higher 2^x boundary (4, 8, ...),
-// but not higher than the alignment of the largest type we support
-// (currently a double word). -- see class TargetData).
-//
-// This function is similar to the corresponding function in EmitAssembly.cpp
-// but they are unrelated. This one does not align at more than a
-// double-word boundary whereas that one might.
-//
-inline unsigned
-SizeToAlignment(unsigned size, const TargetMachine& target)
-{
- unsigned short cacheLineSize = target.getCacheInfo().getCacheLineSize(1);
- if (size > (unsigned) cacheLineSize / 2)
- return cacheLineSize;
- else
- for (unsigned sz=1; /*no condition*/; sz *= 2)
- if (sz >= size || sz >= target.getTargetData().getDoubleAlignment())
- return sz;