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Re: Multiple letter constraints for the s390 backend
- From: Ulrich Weigand <weigand at i1 dot informatik dot uni-erlangen dot de>
- To: krebbel1 at de dot ibm dot com
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Sun, 30 Nov 2003 16:58:19 +0100 (CET)
- Subject: Re: Multiple letter constraints for the s390 backend
Andreas Krebbel wrote:
> * config/s390/s390.md ("tmdi_reg", "tmsi_reg", "*movdi_64", "*movdi_31",
> "iordi3"): Insns now use multiple letter constraints.
> ("*movdi_lhi", "*movdi_lli", "*movdi_lay"): Insns deleted. They are now
> covered by "*movdi_64".
> ("*movsi_lhi", "*movsi_lli", "*movsi_lay"): Insns deleted. They are now
> covered by "*movsi_zarch" and "*movsi_esa".
> ("*movsi_zarch", "*movsi_!zarch"): New insns.
> ("*llgt_sisi_split", "*llgt_didi_split"): Insns deleted. Now covered
> by "*andsi3_zarch" and "anddi3".
> ("*anddi3_ni"): Insn merged with "anddi3".
> ("*andsi3_ni"): Insn merged with "*andsi3_zarch".
> ("*andsi3_zarch", "*andsi3_esa"): New insns.
> ("*iordi3_oi"): Insn merged with "iordi3".
> ("*iorsi3_oi"): Insn merged with "*iorsi3_zarch".
> ("*iorsi3_zarch", "*iorsi3_esa"): New insns.
>
> * config/s390/s390.c (s390_single_qi, s390_single_hi): Functions
> merged to s390_single_part.
> (s390_single_part): New function.
> NOTE: Semantics have changed a bit. Now the value of the part must
> be different from the others to get a non-negative return value.
> (s390_extract_qi, s390_extract_hi): Functions merged to
> s390_extract_part.
> (s390_extract_part, s390_extra_constraint_str,
> s390_const_ok_for_constraint_p): New functions. The L constraint got a
> new meaning and the N constraint was added as a multiple letter
> constraint.
> (s390_extra_constraint): Function deleted.
> (print_operand): New output modifier 'i' and 'j' added.
> All uses of CONST_OK_FOR_LETTER_P were replaced by
> CONST_OK_FOR_CONSTRAINT_P.
>
> * config/s390/s390-protos.h: Function prototypes adapted.
> * doc/md.texi: Documentation for new constraint letters added.
Applied, thanks!
Bye,
Ulrich
--
Dr. Ulrich Weigand
weigand@informatik.uni-erlangen.de