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Revert r127953, "SimplifyCFG has stopped duplicating returns into predecessors

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to canonicalize IR", it broke a lot of things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127954 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar
2011-03-19 21:47:14 +00:00
parent ae16d6b972
commit 7a90e04fc7
7 changed files with 4 additions and 197 deletions
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10
lib/Target/ARM/ARMISelLowering.cpp
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@@ -1805,16 +1805,6 @@ bool ARMTargetLowering::isUsedByReturnOnly(SDNode *N) const {
return HasRet;
}
bool ARMTargetLowering::mayBeEmittedAsTailCall(CallInst *CI) const {
if (!EnableARMTailCalls)
return false;
if (!CI->isTailCall())
return false;
return !Subtarget->isThumb1Only();
}
// ConstantPool, JumpTable, GlobalAddress, and ExternalSymbol are lowered as
// their target counterpart wrapped in the ARMISD::Wrapper node. Suppose N is
// one of the above mentioned nodes. It has to be wrapped because otherwise