The end result is a bunch more macro-ized patterns in the md file,
and some missing patterns filled in. The widen_mult_even/odd hooks
elide the need for specific sdot_prod patterns while allowing the
same improved code sequence for other reductions.
I expect to be able to use the widen_mult_even/odd hooks elsewhere
as well, but that patch sequence is not yet complete.
Tested on x86-64-linux, {-msse2,-msse4}. Spot checked for -mavx2 and -mxop.
Committed.
r~
Richard Henderson (4):
i386: Cleanup and unify widening multiply patterns
i386: Use vpmacsdd for mulv4si3
i386: Add widen_multiply_even/odd builtins and hooks
i386: Delete sse sdot_prod; add sdot_prodv4si for xop
gcc/ChangeLog | 54 ++++++
gcc/config/i386/i386-builtin-types.def | 5 +-
gcc/config/i386/i386-protos.h | 4 +-
gcc/config/i386/i386.c | 308 +++++++++++++++++++++++++++-----
gcc/config/i386/i386.md | 1 +
gcc/config/i386/predicates.md | 7 -
gcc/config/i386/sse.md | 282 +++++------------------------
7 files changed, 368 insertions(+), 293 deletions(-)
--
1.7.10.2
