The attribute defaults to 1 for TI-mode insns of type sselog, sselog1, sseiadd, sseimul, and sseishft.
In *<code>v8hi3 [smaxmin] and *<code>v16qi3 [umaxmin] also drop the similarly stray "prefix_extra" at this occasion. These two max/min flavors are encoded in 0f space. gcc/ * config/i386/mmx.md (*mmx_pinsrd): Drop "prefix_data16". (*mmx_pinsrb): Likewise. (*mmx_pextrb): Likewise. (*mmx_pextrb_zext): Likewise. (mmx_pshufbv8qi3): Likewise. (mmx_pshufbv4qi3): Likewise. (mmx_pswapdv2si2): Likewise. (*pinsrb): Likewise. (*pextrb): Likewise. (*pextrb_zext): Likewise. * config/i386/sse.md (*sse4_1_mulv2siv2di3<mask_name>): Likewise. (*sse2_eq<mode>3): Likewise. (*sse2_gt<mode>3): Likewise. (<sse2p4_1>_pinsr<ssemodesuffix>): Likewise. (*vec_extract<mode>): Likewise. (*vec_extract<PEXTR_MODE12:mode>_zext): Likewise. (*vec_extractv16qi_zext): Likewise. (ssse3_ph<plusminus_mnemonic>wv8hi3): Likewise. (ssse3_pmaddubsw128): Likewise. (*<ssse3_avx2>_pmulhrsw<mode>3<mask_name>): Likewise. (<ssse3_avx2>_pshufb<mode>3<mask_name>): Likewise. (<ssse3_avx2>_psign<mode>3): Likewise. (<ssse3_avx2>_palignr<mode>): Likewise. (*abs<mode>2): Likewise. (sse4_2_pcmpestr): Likewise. (sse4_2_pcmpestri): Likewise. (sse4_2_pcmpestrm): Likewise. (sse4_2_pcmpestr_cconly): Likewise. (sse4_2_pcmpistr): Likewise. (sse4_2_pcmpistri): Likewise. (sse4_2_pcmpistrm): Likewise. (sse4_2_pcmpistr_cconly): Likewise. (vgf2p8affineinvqb_<mode><mask_name>): Likewise. (vgf2p8affineqb_<mode><mask_name>): Likewise. (vgf2p8mulb_<mode><mask_name>): Likewise. (*<code>v8hi3 [smaxmin]): Drop "prefix_data16" and "prefix_extra". (*<code>v16qi3 [umaxmin]): Likewise. --- a/gcc/config/i386/mmx.md +++ b/gcc/config/i386/mmx.md @@ -3863,7 +3863,6 @@ } } [(set_attr "isa" "noavx,avx") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "type" "sselog") (set_attr "length_immediate" "1") @@ -3950,7 +3949,6 @@ } [(set_attr "isa" "noavx,avx") (set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "orig,vex") @@ -4002,7 +4000,6 @@ %vpextrb\t{%2, %1, %k0|%k0, %1, %2} %vpextrb\t{%2, %1, %0|%0, %1, %2}" [(set_attr "type" "sselog1") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "maybe_vex") @@ -4017,7 +4014,6 @@ "TARGET_SSE4_1 && TARGET_MMX_WITH_SSE" "%vpextrb\t{%2, %1, %k0|%k0, %1, %2}" [(set_attr "type" "sselog1") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "maybe_vex") @@ -4035,7 +4031,6 @@ vpshufb\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "sselog1") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,maybe_evex") (set_attr "btver2_decode" "vector") @@ -4053,7 +4048,6 @@ vpshufb\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "sselog1") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,maybe_evex") (set_attr "btver2_decode" "vector") @@ -4191,7 +4185,6 @@ (set_attr "mmx_isa" "native,*") (set_attr "type" "mmxcvt,sselog1") (set_attr "prefix_extra" "1,*") - (set_attr "prefix_data16" "*,1") (set_attr "length_immediate" "*,1") (set_attr "mode" "DI,TI")]) @@ -4531,7 +4524,6 @@ } [(set_attr "isa" "noavx,avx") (set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "orig,vex") @@ -4575,7 +4567,6 @@ %vpextrb\t{%2, %1, %k0|%k0, %1, %2} %vpextrb\t{%2, %1, %0|%0, %1, %2}" [(set_attr "type" "sselog1") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "maybe_vex") @@ -4590,7 +4581,6 @@ "TARGET_SSE4_1" "%vpextrb\t{%2, %1, %k0|%k0, %1, %2}" [(set_attr "type" "sselog1") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "maybe_vex") --- a/gcc/config/i386/sse.md +++ b/gcc/config/i386/sse.md @@ -15614,7 +15614,6 @@ vpmuldq\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}" [(set_attr "isa" "noavx,noavx,avx") (set_attr "type" "sseimul") - (set_attr "prefix_data16" "1,1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,orig,vex") (set_attr "mode" "TI")]) @@ -16688,8 +16687,6 @@ vp<maxmin_int>w\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "sseiadd") - (set_attr "prefix_data16" "1,*") - (set_attr "prefix_extra" "*,1") (set_attr "prefix" "orig,vex") (set_attr "mode" "TI")]) @@ -16772,8 +16769,6 @@ vp<maxmin_int>b\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "sseiadd") - (set_attr "prefix_data16" "1,*") - (set_attr "prefix_extra" "*,1") (set_attr "prefix" "orig,vex") (set_attr "mode" "TI")]) @@ -17001,7 +16996,6 @@ vpcmpeq<ssemodesuffix>\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "ssecmp") - (set_attr "prefix_data16" "1,*") (set_attr "prefix" "orig,vex") (set_attr "mode" "TI")]) @@ -17063,7 +17057,6 @@ vpcmpgt<ssemodesuffix>\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "ssecmp") - (set_attr "prefix_data16" "1,*") (set_attr "prefix" "orig,vex") (set_attr "mode" "TI")]) @@ -18819,12 +18812,6 @@ (match_test "GET_MODE_NUNITS (<MODE>mode) == 2")) (const_string "1") (const_string "*"))) - (set (attr "prefix_data16") - (if_then_else - (and (not (match_test "TARGET_AVX")) - (match_test "GET_MODE_NUNITS (<MODE>mode) == 8")) - (const_string "1") - (const_string "*"))) (set (attr "prefix_extra") (if_then_else (ior (eq_attr "prefix" "evex") @@ -19985,7 +19972,6 @@ %vpextr<ssemodesuffix>\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "*,sse4") (set_attr "type" "sselog1") - (set_attr "prefix_data16" "1") (set (attr "prefix_extra") (if_then_else (eq (const_string "<MODE>mode") (const_string "V8HImode")) @@ -20006,7 +19992,6 @@ "TARGET_SSE2" "%vpextr<PEXTR_MODE12:ssemodesuffix>\t{%2, %1, %k0|%k0, %1, %2}" [(set_attr "type" "sselog1") - (set_attr "prefix_data16" "1") (set (attr "prefix_extra") (if_then_else (eq (const_string "<PEXTR_MODE12:MODE>mode") (const_string "V8HImode")) @@ -20026,7 +20011,6 @@ "TARGET_SSE4_1" "%vpextrb\t{%2, %1, %k0|%k0, %1, %2}" [(set_attr "type" "sselog1") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "maybe_vex") @@ -21240,7 +21224,6 @@ [(set_attr "isa" "noavx,avx") (set_attr "type" "sseiadd") (set_attr "atom_unit" "complex") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,vex") (set_attr "mode" "TI")]) @@ -21511,7 +21494,6 @@ [(set_attr "isa" "noavx,avx") (set_attr "type" "sseiadd") (set_attr "atom_unit" "simul") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,vex") (set_attr "mode" "TI")]) @@ -21639,7 +21621,6 @@ vpmulhrsw\t{%2, %1, %0<mask_operand4>|%0<mask_operand4>, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "sseimul") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,maybe_evex") (set_attr "mode" "<sseinsnmode>")]) @@ -21763,7 +21744,6 @@ vpshufb\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "sselog1") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,maybe_evex") (set_attr "btver2_decode" "vector") @@ -21830,7 +21810,6 @@ vpsign<ssemodesuffix>\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,avx") (set_attr "type" "sselog1") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,vex") (set_attr "mode" "<sseinsnmode>")]) @@ -21898,7 +21877,6 @@ [(set_attr "isa" "noavx,avx") (set_attr "type" "sseishft") (set_attr "atom_unit" "sishuf") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "orig,vex") @@ -21992,7 +21970,6 @@ "TARGET_SSSE3" "%vpabs<ssemodesuffix>\t{%1, %0|%0, %1}" [(set_attr "type" "sselog1") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "prefix" "maybe_vex") (set_attr "mode" "<sseinsnmode>")]) @@ -24244,7 +24221,6 @@ DONE; } [(set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "memory" "none,load") @@ -24270,7 +24246,6 @@ "TARGET_SSE4_2" "%vpcmpestri\t{%5, %3, %1|%1, %3, %5}" [(set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "prefix" "maybe_vex") (set_attr "length_immediate" "1") @@ -24298,7 +24273,6 @@ "TARGET_SSE4_2" "%vpcmpestrm\t{%5, %3, %1|%1, %3, %5}" [(set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "maybe_vex") @@ -24324,7 +24298,6 @@ %vpcmpestri\t{%6, %4, %2|%2, %4, %6} %vpcmpestri\t{%6, %4, %2|%2, %4, %6}" [(set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "memory" "none,load,none,load") @@ -24379,7 +24352,6 @@ DONE; } [(set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "memory" "none,load") @@ -24401,7 +24373,6 @@ "TARGET_SSE4_2" "%vpcmpistri\t{%3, %2, %1|%1, %2, %3}" [(set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "maybe_vex") @@ -24425,7 +24396,6 @@ "TARGET_SSE4_2" "%vpcmpistrm\t{%3, %2, %1|%1, %2, %3}" [(set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "prefix" "maybe_vex") @@ -24449,7 +24419,6 @@ %vpcmpistri\t{%4, %3, %2|%2, %3, %4} %vpcmpistri\t{%4, %3, %2|%2, %3, %4}" [(set_attr "type" "sselog") - (set_attr "prefix_data16" "1") (set_attr "prefix_extra" "1") (set_attr "length_immediate" "1") (set_attr "memory" "none,load,none,load") @@ -29268,7 +29237,6 @@ gf2p8affineinvqb\t{%3, %2, %0| %0, %2, %3} vgf2p8affineinvqb\t{%3, %2, %1, %0<mask_operand4>| %0<mask_operand4>, %1, %2, %3}" [(set_attr "isa" "noavx,avx") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,maybe_evex") (set_attr "mode" "<sseinsnmode>")]) @@ -29285,7 +29253,6 @@ gf2p8affineqb\t{%3, %2, %0| %0, %2, %3} vgf2p8affineqb\t{%3, %2, %1, %0<mask_operand4>| %0<mask_operand4>, %1, %2, %3}" [(set_attr "isa" "noavx,avx") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,maybe_evex") (set_attr "mode" "<sseinsnmode>")]) @@ -29301,7 +29268,6 @@ gf2p8mulb\t{%2, %0| %0, %2} vgf2p8mulb\t{%2, %1, %0<mask_operand3>| %0<mask_operand3>, %1, %2}" [(set_attr "isa" "noavx,avx") - (set_attr "prefix_data16" "1,*") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,maybe_evex") (set_attr "mode" "<sseinsnmode>")])