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Re-apply bottom-up fast-isel, with fixes. Be very careful to avoid emitting

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a DBG_VALUE after a terminator, or emitting any instructions before an EH_LABEL.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107943 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-07-09 00:39:23 +00:00
parent 1cd050931f
commit bf87e24917
22 changed files with 645 additions and 365 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;
}