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[PowerPC] Add a FIXME.

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Documenting a design choice to generate only medium model sequences for TLS
addresses at this time.  Small and large code models could be supported if
necessary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190883 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Schmidt 2013-09-17 20:22:05 +00:00
parent 5bd1dfa2b5
commit 3789209b79
1 changed files with 4 additions and 0 deletions
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4
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -1408,6 +1408,10 @@ SDValue PPCTargetLowering::LowerBlockAddress(SDValue Op,
SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op,
SelectionDAG &DAG) const {
// FIXME: TLS addresses currently use medium model code sequences,
// which is the most useful form. Eventually support for small and
// large models could be added if users need it, at the cost of
// additional complexity.
GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
SDLoc dl(GA);
const GlobalValue *GV = GA->getGlobal();