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Re: RFA: fix another emit_no_conflit bug (Was: Re: RFA: fix PR 23837)

Ian Lance Taylor wrote:





/* Likewise if this insn depends on a register set by a previous
! insn in the list, or if it sets a result (presumably a hard
! register) that is set or clobbered by a previous insn.
! N.B. the modified_*_p (SET_DEST...) tests applied to a MEM
! SET_DEST perform the former check on the address, and the latter
! check on the MEM. */



I don't really understand the N.B. in the comment.  What do "former"
and "latter" refer to?

Ian


The 'former check' checks if the insn depends on a register set by a previous insn in the list.
The 'latter check' checks if the insn sets a result that is set or clobbered by a previous insn.

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