Displaying 2 results from an estimated 2 matches for "slot_regist".
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slot_register
2016 Dec 22
5
Understanding SlotIndexes
....getRegSlot(true)))
if (SlotIndex::isSameInstr(Idx, VNI->def))
Idx = VNI->def;
Comments in SlotIndexes.h have this to say:
/// Early-clobber register use/def slot. A live range defined at
/// Slot_EarlyCLobber interferes with normal live ranges killed at
/// Slot_Register. Also used as the kill slot for live ranges tied to an
/// early-clobber def.
Slot_EarlyClobber,
What does this mean, exactly? My impression was that an instruction
uses a virtual register at Slot_EarlyClobber if it uses a register tied
to a register def in that instruction. Is th...
2016 Dec 25
0
Understanding SlotIndexes
On 12/22/2016 4:02 PM, via llvm-dev wrote:
>
> /// Early-clobber register use/def slot. A live range defined at
> /// Slot_EarlyCLobber interferes with normal live ranges killed at
> /// Slot_Register. Also used as the kill slot for live ranges tied to an
> /// early-clobber def.
> Slot_EarlyClobber,
>
> What does this mean, exactly? My impression was that an instruction
> uses a virtual register at Slot_EarlyClobber if it uses a register tied
> to a register de...