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Basic fix for PR#591; don't convert an fprintf() to an fwrite() if there

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is a mismatch in their character type pointers (i.e. fprintf() prints an
array of ubytes while fwrite() takes an array of sbytes).
We can probably do better than this (such as casting the ubyte to an
sbyte).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22310 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
John Criswell 2005-06-29 15:03:18 +00:00
parent 0cab375231
commit 1d231ec0b0
1 changed files with 9 additions and 0 deletions
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9
lib/Transforms/IPO/SimplifyLibCalls.cpp
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@ -1305,6 +1305,15 @@ public:
Function* fwrite_func = SLC.get_fwrite(FILEptr_type);
if (!fwrite_func)
return false;
// Make sure that the fprintf() and fwrite() functions both take the
// same type of char pointer.
if (ci->getOperand(2)->getType() !=
fwrite_func->getFunctionType()->getParamType(0))
{
return false;
}
std::vector<Value*> args;
args.push_back(ci->getOperand(2));
args.push_back(ConstantUInt::get(SLC.getIntPtrType(),len));