[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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