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Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
- To: dave at hiauly1 dot hia dot nrc dot ca
- Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- Date: Wed, 17 Jan 01 05:53:30 EST
- Cc: gcc-patches at gcc dot gnu dot org
As I understand it, the reason we don't emit it unconditionally is
that insns can't be deleted in the prologue, so we try not to emit it
if it isn't needed.
Yes, they can, as long as a REG_MAYBE_DEAD note is on the insn.