[PING^3] INSN attribute to enable/disable alternatives

Andreas Krebbel Andreas.Krebbel@de.ibm.com
Tue Sep 18 14:03:00 GMT 2007


Hi,

these 3 patches introduce a new special attribute to be used in INSN
definitions in order to enable or disable certain INSN alternatives.
I think this comes in quite handy when enhancing a back end with new
instructions and I would like to get this in before entering stage 3.

[PATCH 1/3] S/390: New `enabled' insn attribute
http://gcc.gnu.org/ml/gcc-patches/2007-08/msg01908.html

[PATCH 2/3] reload,recog: New `enabled' insn attribute
http://gcc.gnu.org/ml/gcc-patches/2007-08/msg01909.html

[PATCH 3/3] genattr: New `enabled' insn attribute
http://gcc.gnu.org/ml/gcc-patches/2007-08/msg01910.html

Bye,

-Andreas-



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