Commit 715a5c85 by Bill Schmidt Committed by William Schmidt

constraints.md: Document reserved use of "wc".

2014-03-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/constraints.md: Document reserved use of "wc".

From-SVN: r208266
parent dbdbf36a
2014-03-02 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/constraints.md: Document reserved use of "wc".
2014-03-02 Jan Hubicka <hubicka@ucw.cz>
PR ipa/60150
......
......@@ -56,6 +56,9 @@
(define_register_constraint "wa" "rs6000_constraints[RS6000_CONSTRAINT_wa]"
"Any VSX register if the -mvsx option was used or NO_REGS.")
;; NOTE: For compatibility, "wc" is reserved to represent individual CR bits.
;; It is currently used for that purpose in LLVM.
(define_register_constraint "wd" "rs6000_constraints[RS6000_CONSTRAINT_wd]"
"VSX vector register to hold vector double data or NO_REGS.")
......
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