6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-20 09:30:43 +00:00
Code Issues Projects Releases Wiki Activity

Restrict InstCombine from converting varargs to or from fixed args.

Browse Source 
More targetted fix replacing d0e277d272.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149648 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2012-02-03 00:00:55 +00:00
parent d5917f0b4d
commit f374486659
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Transforms/InstCombine/InstCombineCalls.cpp
View File

@ -1104,6 +1104,13 @@ bool InstCombiner::transformConstExprCastCall(CallSite CS) {
PointerType *APTy = cast<PointerType>(CS.getCalledValue()->getType()); PointerType *APTy = cast<PointerType>(CS.getCalledValue()->getType());
if (FT->isVarArg()!=cast<FunctionType>(APTy->getElementType())->isVarArg()) if (FT->isVarArg()!=cast<FunctionType>(APTy->getElementType())->isVarArg())
return false; return false;
// If both the callee and the cast type are varargs, we still have to make
// sure the number of fixed parameters are the same or we have the same
// ABI issues as if we introduce a varargs call.
if (FT->getNumParams() !=
cast<FunctionType>(APTy->getElementType())->getNumParams())
return false;
} }
if (FT->getNumParams() < NumActualArgs && FT->isVarArg() && if (FT->getNumParams() < NumActualArgs && FT->isVarArg() &&