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Correctly handle a one-word struct passed byval on x86_64.

Browse Source 
rdar://problem/6920088


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132105 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Stuart Hastings
2011-05-26 02:44:56 +00:00
parent fcdc9a44e5
commit aa4e6afc9b
4 changed files with 116 additions and 15 deletions
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9
lib/CodeGen/CallingConvLower.cpp
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@ -48,8 +48,13 @@ void CCState::HandleByVal(unsigned ValNo, MVT ValVT,
if (MinAlign > (int)Align)
Align = MinAlign;
TM.getTargetLowering()->HandleByVal(const_cast<CCState*>(this), Size);
unsigned Offset = AllocateStack(Size, Align);
addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));
if (Size) {
unsigned Offset = AllocateStack(Size, Align);
addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));
} else {
addLoc(CCValAssign::getReg(ValNo, ValVT, getFirstByValReg(), LocVT,
LocInfo));
}
}
/// MarkAllocated - Mark a register and all of its aliases as allocated.