Roger Ferrer Ibanez aea4208720 [ARM] Allow the scheduler to clone a node with glue to avoid a copy CPSR ↔ GPR. ... In Thumb 1, with the new ADDCARRY / SUBCARRY the scheduler may need to do copies CPSR ↔ GPR but not all Thumb1 targets implement them. The schedule can attempt, before attempting a copy, to clone the instructions but it does not currently do that for nodes with input glue. In this patch we introduce a target-hook to let the hook decide if a glued machinenode is still eligible for copying. In this case these are ARM::tADCS and ARM::tSBCS . As a follow-up of this change we should actually implement the copies for the Thumb1 targets that do implement them and restrict the hook to the targets that can't really do such copy as these clones are not ideal. This change fixes PR35836. Differential Revision: https://reviews.llvm.org/D42051 llvm-svn: 323857		2018-01-31 09:23:43 +00:00
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llvm	[ARM] Allow the scheduler to clone a node with glue to avoid a copy CPSR ↔ GPR.	2018-01-31 09:23:43 +00:00
llvm-c	[LLVM-C] Add Accessors For A Module's Source File Name	2018-01-30 21:34:29 +00:00