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Add X86FastISel support for return statements. This entails refactoring

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a bunch of stuff, to allow the target-independent calling convention
logic to be employed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107800 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-07-07 18:32:53 +00:00
parent ced9ec9bac
commit f423a69839
11 changed files with 165 additions and 97 deletions
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9
lib/CodeGen/CallingConvLower.cpp
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@ -80,13 +80,12 @@ CCState::AnalyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> &Ins,
/// CheckReturn - Analyze the return values of a function, returning true if
/// the return can be performed without sret-demotion, and false otherwise.
bool CCState::CheckReturn(const SmallVectorImpl<EVT> &OutTys,
const SmallVectorImpl<ISD::ArgFlagsTy> &ArgsFlags,
bool CCState::CheckReturn(const SmallVectorImpl<ISD::OutputArg> &Outs,
CCAssignFn Fn) {
// Determine which register each value should be copied into.
for (unsigned i = 0, e = OutTys.size(); i != e; ++i) {
EVT VT = OutTys[i];
ISD::ArgFlagsTy ArgFlags = ArgsFlags[i];
for (unsigned i = 0, e = Outs.size(); i != e; ++i) {
EVT VT = Outs[i].VT;
ISD::ArgFlagsTy ArgFlags = Outs[i].Flags;
if (Fn(i, VT, VT, CCValAssign::Full, ArgFlags, *this))
return false;
}