[llvm-commits] (patch) PR7608 ARMv4 JIT forgets to set the lr register when making a indirect function call

[Xerxes Ranby]

http://llvm.org/bugs/show_bug.cgi?id=7608
Attached patch fixes the PR7608 bug by defining a new ARM selection dag node
ARMmovlrpc and makes sure both jit and non-jit got a ARMmovlrpc chained and
flagged before any ARMcall_nolink non-tailcall selection dag node. 

* llvm/lib/Target/ARM/ARMISelLowering.cpp
(ARMTargetLowering::getTargetNodeName): Update to handle ARMISD::MOVLRPC.
(ARMTargetLowering::LowerCall): Add chain and flag a ARMmovlrpc before any
ARMcall_nolink non-tailcall selection dag node.
* llvm/lib/Target/ARM/ARMISelLowering.h
(ARMISD::MOVLRPC): New enum.
* llvm/lib/Target/ARM/ARMInstrInfo.td
(ARMmovlrpc): New defined selection dag node.
(MOVLRPC): New defined instruction.
(BX): Emit only one instruction for non-jit.
(BMOVPCRX): Likewise.
(BXr9): Likewise.
(BMOVPCRXr9): Likewise.

Ok to push?

Cheers
Xerxes

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