[Bug target/60203] Support long double/_Decimal128 direct move on power8

meissner at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Feb 19 02:14:00 GMT 2014


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60203

--- Comment #6 from Michael Meissner <meissner at gcc dot gnu.org> ---
Author: meissner
Date: Wed Feb 19 02:14:17 2014
New Revision: 207868

URL: http://gcc.gnu.org/viewcvs?rev=207868&root=gcc&view=rev
Log:
2014-02-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

    PR target/60203
    * config/rs6000/rs6000.md (mov<mode>_64bit, TF/TDmode moves):
    Split 64-bit moves into 2 patterns.  Do not allow the use of
    direct move for TDmode in little endian, since the decimal value
    has little endian bytes within a word, but the 64-bit pieces are
    ordered in a big endian fashion, and normal subreg's of TDmode are
    not allowed.
    (mov<mode>_64bit_dm): Likewise.
    (movtd_64bit_nodm): Likewise.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.md



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