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i386: Expand mul<VI8_AVX2> earlier
authorRichard Henderson <rth@redhat.com>
Wed, 27 Jun 2012 03:19:51 +0000 (20:19 -0700)
committerRichard Henderson <rth@gcc.gnu.org>
Wed, 27 Jun 2012 03:19:51 +0000 (20:19 -0700)
commit298301d9e7ef43ab3475495446c9d9378cf6fb31
tree2f0f80a671b4ba2cbfaee3a36e454d7c3465a624tree
parente2a3a0987fdacf48defcc6f89a92197026d2bde4commit | diff
i386: Expand mul<VI8_AVX2> earlier

Move the expansion code to i386.c next to mulv4si3.  Eliminate
one shift by adding the highparts before shifting.  Correct costs.

        * config/i386/sse.md (mul<VI8_AVX2>3): Change from insn_and_split
        to expander; move guts to ...
        * config/i386/i386.c (ix86_expand_sse2_mulvxdi3): ... here.  Add
        highparts before shifting up.
        * config/i386/i386-protos.h: Update.

From-SVN: r189005
gcc/ChangeLog diff | blob | history
gcc/config/i386/i386-protos.h diff | blob | history
gcc/config/i386/i386.c diff | blob | history
gcc/config/i386/sse.md diff | blob | history