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When I was making a patch to rework TARGET_P8_VECTOR, I
noticed that there are some redundant checks and dead code
related to TARGET_DIRECT_MOVE, so I made this patch as one
separated preparatory patch, it consists of:
- Check either TARGET_DIRECT_MOVE or TARGET_P8_VECTOR only
according to the context, rather than checking both of
them since they are actually the same (TARGET_DIRECT_MOVE
is defined as TARGET_P8_VECTOR).
- Simplify TARGET_VSX && TARGET_DIRECT_MOVE as
TARGET_DIRECT_MOVE since direct move ensures VSX enabled.
- Replace some TARGET_POWERPC64 && TARGET_DIRECT_MOVE as
TARGET_DIRECT_MOVE_64BIT to simplify it.
- Remove some dead code guarded with TARGET_DIRECT_MOVE
but the condition never holds here.
gcc/ChangeLog:
* config/rs6000/rs6000.cc (rs6000_option_override_internal): Simplify
TARGET_P8_VECTOR && TARGET_DIRECT_MOVE as TARGET_P8_VECTOR.
(rs6000_output_move_128bit): Simplify TARGET_VSX && TARGET_DIRECT_MOVE
as TARGET_DIRECT_MOVE.
* config/rs6000/rs6000.h (TARGET_XSCVDPSPN): Simplify conditions
TARGET_DIRECT_MOVE || TARGET_P8_VECTOR as TARGET_P8_VECTOR.
(TARGET_XSCVSPDPN): Likewise.
(TARGET_DIRECT_MOVE_128): Simplify TARGET_DIRECT_MOVE &&
TARGET_POWERPC64 as TARGET_DIRECT_MOVE_64BIT.
(TARGET_VEXTRACTUB): Likewise.
(TARGET_DIRECT_MOVE_64BIT): Simplify TARGET_P8_VECTOR &&
TARGET_DIRECT_MOVE as TARGET_DIRECT_MOVE.
* config/rs6000/rs6000.md (signbit<mode>2, @signbit<mode>2_dm,
*signbit<mode>2_dm_mem, floatsi<mode>2_lfiwax,
floatsi<SFDF:mode>2_lfiwax_<QHI:mode>_mem_zext,
floatunssi<mode>2_lfiwzx, float<QHI:mode><SFDF:mode>2,
*float<QHI:mode><SFDF:mode>2_internal, floatuns<QHI:mode><SFDF:mode>2,
*floatuns<QHI:mode><SFDF:mode>2_internal, p8_mtvsrd_v16qidi2,
p8_mtvsrd_df, p8_xxpermdi_<mode>, reload_vsx_from_gpr<mode>,
p8_mtvsrd_sf, reload_vsx_from_gprsf, p8_mfvsrd_3_<mode>,
reload_gpr_from_vsx<mode>, reload_gpr_from_vsxsf, unpack<mode>_dm):
Simplify TARGET_DIRECT_MOVE && TARGET_POWERPC64 as
TARGET_DIRECT_MOVE_64BIT.
(unpack<mode>_nodm): Simplify !TARGET_DIRECT_MOVE || !TARGET_POWERPC64
as !TARGET_DIRECT_MOVE_64BIT.
(fix_trunc<mode>si2, fix_trunc<mode>si2_stfiwx,
fix_trunc<mode>si2_internal): Simplify TARGET_P8_VECTOR &&
TARGET_DIRECT_MOVE as TARGET_DIRECT_MOVE.
(fix_trunc<mode>si2_stfiwx, fixuns_trunc<mode>si2_stfiwx): Remove some
dead code as the guard TARGET_DIRECT_MOVE there never holds.
(fixuns_trunc<mode>si2_stfiwx): Change TARGET_P8_VECTOR with
TARGET_DIRECT_MOVE which is a better fit.
* config/rs6000/vsx.md (define_peephole2 for SFmode in GPR): Simplify
TARGET_DIRECT_MOVE && TARGET_POWERPC64 as TARGET_DIRECT_MOVE_64BIT.
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