On Sun, Oct 20, 2019 at 1:24 PM Jakub Jelinek <ja...@redhat.com> wrote: > > Hi! > > As mentioned in the PR, the x86 backend has various define_insn_and_split > patterns that are meant to match usually during combine, are then > unconditionally split during split1 pass and as they have && > can_create_pseudo_p () > in their define_insn condition, if they get matched after split1, nothing > would split them anymore and they wouldn't match after reload. > > The split1 pass already sets a property that can be used. > > I've first tried to remove some constraints and associated attributes, but > it seems from further discussions in the PR I don't know much about the > reasons why they were added and if they are still needed or not, so this > version of the patch just replaces the can_create_pseudo_p () conditions > with a new predicate that stops matching already after the split1 pass.
As explained by Segher in the PR, there is no 100% guarantee that combine won't produce a pattern with a wrong hard register as a e.g. count reg of a shift insn. RA will die on this kind of pattern with reload failure, so these constraints are used together with ix86_legitimate_combined_insn target hook to reject invalid combinations involving hard registers. > Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk? Assuming that used property is the correct way to go, OK. Thanks, Uros. > 2019-10-20 Jakub Jelinek <ja...@redhat.com> > > * config/i386/i386-protos.h (ix86_pre_reload_split): Declare. > * config/i386/i386.c (ix86_pre_reload_split): New function. > * config/i386/i386.md (*fix_trunc<mode>_i387_1, *add<mode>3_eq, > *add<mode>3_ne, *add<mode>3_eq_0, *add<mode>3_ne_0, *add<mode>3_eq, > *add<mode>3_ne, *add<mode>3_eq_1, *add<mode>3_eq_0, *add<mode>3_ne_0, > *anddi3_doubleword, *andndi3_doubleword, *<code>di3_doubleword, > *one_cmpldi2_doubleword, *ashl<dwi>3_doubleword_mask, > *ashl<dwi>3_doubleword_mask_1, *ashl<mode>3_mask, *ashl<mode>3_mask_1, > *<shift_insn><mode>3_mask, *<shift_insn><mode>3_mask_1, > *<shift_insn><dwi>3_doubleword_mask, > *<shift_insn><dwi>3_doubleword_mask_1, *<rotate_insn><mode>3_mask, > *<rotate_insn><mode>3_mask_1, *<btsc><mode>_mask, > *<btsc><mode>_mask_1, > *btr<mode>_mask, *btr<mode>_mask_1, *jcc_bt<mode>, *jcc_bt<mode>_1, > *jcc_bt<mode>_mask, *popcounthi2_1, frndintxf2_<rounding>, > *fist<mode>2_<rounding>_1, *<code><mode>3_1, *<code>di3_doubleword): > Use ix86_pre_reload_split instead of can_create_pseudo_p in condition. > * config/i386/sse.md (*sse4_1_<code>v8qiv8hi2<mask_name>_2, > *avx2_<code>v8qiv8si2<mask_name>_2, > *sse4_1_<code>v4qiv4si2<mask_name>_2, > *sse4_1_<code>v4hiv4si2<mask_name>_2, > *avx512f_<code>v8qiv8di2<mask_name>_2, > *avx2_<code>v4qiv4di2<mask_name>_2, > *avx2_<code>v4hiv4di2<mask_name>_2, > *sse4_1_<code>v2hiv2di2<mask_name>_2, > *sse4_1_<code>v2siv2di2<mask_name>_2, sse4_2_pcmpestr, > sse4_2_pcmpistr): Likewise. > > --- gcc/config/i386/i386-protos.h.jj 2019-10-19 14:45:47.693185643 +0200 > +++ gcc/config/i386/i386-protos.h 2019-10-19 19:08:12.371359926 +0200 > @@ -55,6 +55,7 @@ extern rtx standard_80387_constant_rtx ( > extern int standard_sse_constant_p (rtx, machine_mode); > extern const char *standard_sse_constant_opcode (rtx_insn *, rtx *); > extern bool ix86_standard_x87sse_constant_load_p (const rtx_insn *, rtx); > +extern bool ix86_pre_reload_split (void); > extern bool symbolic_reference_mentioned_p (rtx); > extern bool extended_reg_mentioned_p (rtx); > extern bool x86_extended_QIreg_mentioned_p (rtx_insn *); > --- gcc/config/i386/i386.c.jj 2019-10-19 14:45:47.729185094 +0200 > +++ gcc/config/i386/i386.c 2019-10-19 19:08:12.376359849 +0200 > @@ -4894,6 +4894,18 @@ ix86_standard_x87sse_constant_load_p (co > return true; > } > > +/* Predicate for pre-reload splitters with associated instructions, > + which can match any time before the split1 pass (usually combine), > + then are unconditionally split in that pass and should not be > + matched again afterwards. */ > + > +bool > +ix86_pre_reload_split (void) > +{ > + return (can_create_pseudo_p () > + && !(cfun->curr_properties & PROP_rtl_split_insns)); > +} > + > /* Returns true if OP contains a symbol reference */ > > bool > --- gcc/config/i386/i386.md.jj 2019-10-19 14:46:15.489760948 +0200 > +++ gcc/config/i386/i386.md 2019-10-19 19:08:12.381359773 +0200 > @@ -4920,7 +4920,7 @@ (define_insn_and_split "*fix_trunc<mode> > && !TARGET_FISTTP > && !(SSE_FLOAT_MODE_P (GET_MODE (operands[1])) > && (TARGET_64BIT || <MODE>mode != DImode)) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(const_int 0)] > @@ -6857,7 +6857,7 @@ (define_insn_and_split "*add<mode>3_eq" > (match_operand:SWI 2 "<general_operand>"))) > (clobber (reg:CC FLAGS_REG))] > "ix86_binary_operator_ok (PLUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -6881,7 +6881,7 @@ (define_insn_and_split "*add<mode>3_ne" > && (<MODE>mode != DImode > || INTVAL (operands[2]) != HOST_WIDE_INT_C (-0x80000000)) > && ix86_binary_operator_ok (PLUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -6904,7 +6904,7 @@ (define_insn_and_split "*add<mode>3_eq_0 > (match_operand:SWI 1 "<general_operand>"))) > (clobber (reg:CC FLAGS_REG))] > "ix86_unary_operator_ok (PLUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -6925,7 +6925,7 @@ (define_insn_and_split "*add<mode>3_ne_0 > (match_operand:SWI 1 "<general_operand>"))) > (clobber (reg:CC FLAGS_REG))] > "ix86_unary_operator_ok (PLUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -6951,7 +6951,7 @@ (define_insn_and_split "*sub<mode>3_eq" > (match_operand:SWI 2 "<general_operand>"))) > (clobber (reg:CC FLAGS_REG))] > "ix86_binary_operator_ok (MINUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -6976,7 +6976,7 @@ (define_insn_and_split "*sub<mode>3_ne" > && (<MODE>mode != DImode > || INTVAL (operands[2]) != HOST_WIDE_INT_C (-0x80000000)) > && ix86_binary_operator_ok (MINUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -7005,7 +7005,7 @@ (define_insn_and_split "*sub<mode>3_eq_1 > && (<MODE>mode != DImode > || INTVAL (operands[2]) != HOST_WIDE_INT_C (-0x80000000)) > && ix86_binary_operator_ok (MINUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -7028,7 +7028,7 @@ (define_insn_and_split "*sub<mode>3_eq_0 > (eq:SWI (match_operand 2 "int_nonimmediate_operand") (const_int > 0)))) > (clobber (reg:CC FLAGS_REG))] > "ix86_unary_operator_ok (MINUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -7049,7 +7049,7 @@ (define_insn_and_split "*sub<mode>3_ne_0 > (ne:SWI (match_operand 2 "int_nonimmediate_operand") (const_int > 0)))) > (clobber (reg:CC FLAGS_REG))] > "ix86_unary_operator_ok (MINUS, <MODE>mode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CC FLAGS_REG) > @@ -8621,7 +8621,7 @@ (define_insn_and_split "*anddi3_doublewo > (clobber (reg:CC FLAGS_REG))] > "!TARGET_64BIT && TARGET_STV && TARGET_SSE2 > && ix86_binary_operator_ok (AND, DImode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(const_int 0)] > @@ -9076,7 +9076,7 @@ (define_insn "*andndi3_doubleword" > (match_operand:DI 2 "nonimmediate_operand"))) > (clobber (reg:CC FLAGS_REG))] > "!TARGET_64BIT && TARGET_STV && TARGET_SSE2 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#") > > (define_split > @@ -9176,7 +9176,7 @@ (define_insn_and_split "*<code>di3_doubl > (clobber (reg:CC FLAGS_REG))] > "!TARGET_64BIT && TARGET_STV && TARGET_SSE2 > && ix86_binary_operator_ok (<CODE>, DImode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(const_int 0)] > @@ -9898,7 +9898,7 @@ (define_insn_and_split "*one_cmpldi2_dou > (not:DI (match_operand:DI 1 "nonimmediate_operand")))] > "!TARGET_64BIT && TARGET_STV && TARGET_SSE2 > && ix86_unary_operator_ok (NOT, DImode, operands) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -10032,7 +10032,7 @@ (define_insn_and_split "*ashl<dwi>3_doub > (match_operand:SI 3 "const_int_operand")) 0))) > (clobber (reg:CC FLAGS_REG))] > "(INTVAL (operands[3]) & (<MODE_SIZE> * BITS_PER_UNIT)) == 0 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -10073,7 +10073,7 @@ (define_insn_and_split "*ashl<dwi>3_doub > (match_operand:QI 3 "const_int_operand")))) > (clobber (reg:CC FLAGS_REG))] > "(INTVAL (operands[3]) & (<MODE_SIZE> * BITS_PER_UNIT)) == 0 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -10228,7 +10228,7 @@ (define_insn_and_split "*ashl<mode>3_mas > "ix86_binary_operator_ok (ASHIFT, <MODE>mode, operands) > && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -10250,7 +10250,7 @@ (define_insn_and_split "*ashl<mode>3_mas > "ix86_binary_operator_ok (ASHIFT, <MODE>mode, operands) > && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -10748,7 +10748,7 @@ (define_insn_and_split "*<shift_insn><mo > "ix86_binary_operator_ok (<CODE>, <MODE>mode, operands) > && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -10770,7 +10770,7 @@ (define_insn_and_split "*<shift_insn><mo > "ix86_binary_operator_ok (<CODE>, <MODE>mode, operands) > && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -10791,7 +10791,7 @@ (define_insn_and_split "*<shift_insn><dw > (match_operand:SI 3 "const_int_operand")) 0))) > (clobber (reg:CC FLAGS_REG))] > "(INTVAL (operands[3]) & (<MODE_SIZE> * BITS_PER_UNIT)) == 0 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -10832,7 +10832,7 @@ (define_insn_and_split "*<shift_insn><dw > (match_operand:QI 3 "const_int_operand")))) > (clobber (reg:CC FLAGS_REG))] > "(INTVAL (operands[3]) & (<MODE_SIZE> * BITS_PER_UNIT)) == 0 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -11298,7 +11298,7 @@ (define_insn_and_split "*<rotate_insn><m > "ix86_binary_operator_ok (<CODE>, <MODE>mode, operands) > && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -11319,7 +11319,7 @@ (define_insn_and_split "*<rotate_insn><m > "ix86_binary_operator_ok (<CODE>, <MODE>mode, operands) > && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -11622,7 +11622,7 @@ (define_insn_and_split "*<btsc><mode>_ma > "TARGET_USE_BT > && (INTVAL (operands[2]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -11647,7 +11647,7 @@ (define_insn_and_split "*<btsc><mode>_ma > "TARGET_USE_BT > && (INTVAL (operands[2]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -11687,7 +11687,7 @@ (define_insn_and_split "*btr<mode>_mask" > "TARGET_USE_BT > && (INTVAL (operands[2]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -11712,7 +11712,7 @@ (define_insn_and_split "*btr<mode>_mask_ > "TARGET_USE_BT > && (INTVAL (operands[2]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(parallel > @@ -11897,7 +11897,7 @@ (define_insn_and_split "*jcc_bt<mode>" > && INTVAL (operands[2]) > >= (optimize_function_for_size_p (cfun) ? 8 : 32)) > : !memory_operand (operands[1], <MODE>mode)) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CCC FLAGS_REG) > @@ -11929,7 +11929,7 @@ (define_insn_and_split "*jcc_bt<mode>_1" > (pc))) > (clobber (reg:CC FLAGS_REG))] > "(TARGET_USE_BT || optimize_function_for_size_p (cfun)) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CCC FLAGS_REG) > @@ -11965,7 +11965,7 @@ (define_insn_and_split "*jcc_bt<mode>_ma > "(TARGET_USE_BT || optimize_function_for_size_p (cfun)) > && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (<MODE>mode)-1)) > == GET_MODE_BITSIZE (<MODE>mode)-1 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (reg:CCC FLAGS_REG) > @@ -14058,7 +14058,7 @@ (define_insn_and_split "*popcounthi2_1" > (zero_extend:SI (match_operand:HI 1 "nonimmediate_operand")))) > (clobber (reg:CC FLAGS_REG))] > "TARGET_POPCNT > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(const_int 0)] > @@ -16479,7 +16479,7 @@ (define_insn_and_split "frndintxf2_<roun > (clobber (reg:CC FLAGS_REG))] > "TARGET_USE_FANCY_MATH_387 > && (flag_fp_int_builtin_inexact || !flag_trapping_math) > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(const_int 0)] > @@ -16582,7 +16582,7 @@ (define_insn_and_split "*fist<mode>2_<ro > (clobber (reg:CC FLAGS_REG))] > "TARGET_USE_FANCY_MATH_387 > && flag_unsafe_math_optimizations > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(const_int 0)] > @@ -17973,7 +17973,7 @@ (define_insn_and_split "*<code><mode>3_1 > (match_operand:MAXMIN_IMODE 2 "nonimmediate_operand"))) > (clobber (reg:CC FLAGS_REG))] > "(TARGET_64BIT || <MODE>mode != DImode) && TARGET_STV > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -18002,7 +18002,7 @@ (define_insn_and_split "*<code>di3_doubl > (match_operand:DI 2 "nonimmediate_operand"))) > (clobber (reg:CC FLAGS_REG))] > "!TARGET_64BIT && TARGET_STV && TARGET_AVX512VL > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > --- gcc/config/i386/sse.md.jj 2019-10-19 14:45:47.634186545 +0200 > +++ gcc/config/i386/sse.md 2019-10-19 19:08:12.383359743 +0200 > @@ -17363,7 +17363,7 @@ (define_insn_and_split "*sse4_1_<code>v8 > (const_int 4) (const_int 5) > (const_int 6) (const_int 7)]))))] > "TARGET_SSE4_1 && <mask_avx512bw_condition> && <mask_avx512vl_condition> > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -17420,7 +17420,7 @@ (define_insn_and_split "*avx2_<code>v8qi > (const_int 4) (const_int 5) > (const_int 6) (const_int 7)]))))] > "TARGET_AVX2 && <mask_avx512vl_condition> > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -17469,7 +17469,7 @@ (define_insn_and_split "*sse4_1_<code>v4 > (parallel [(const_int 0) (const_int 1) > (const_int 2) (const_int 3)]))))] > "TARGET_SSE4_1 && <mask_avx512vl_condition> > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -17535,7 +17535,7 @@ (define_insn_and_split "*sse4_1_<code>v4 > (parallel [(const_int 0) (const_int 1) > (const_int 2) (const_int 3)]))))] > "TARGET_SSE4_1 && <mask_avx512vl_condition> > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -17579,7 +17579,7 @@ (define_insn_and_split "*avx512f_<code>v > (const_int 2) (const_int 3) > (const_int 4) (const_int 5) > (const_int 6) (const_int 7)]))))] > - "TARGET_AVX512F && can_create_pseudo_p ()" > + "TARGET_AVX512F && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -17626,7 +17626,7 @@ (define_insn_and_split "*avx2_<code>v4qi > (parallel [(const_int 0) (const_int 1) > (const_int 2) (const_int 3)]))))] > "TARGET_AVX2 && <mask_avx512vl_condition> > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -17693,7 +17693,7 @@ (define_insn_and_split "*avx2_<code>v4hi > (parallel [(const_int 0) (const_int 1) > (const_int 2) (const_int 3)]))))] > "TARGET_AVX2 && <mask_avx512vl_condition> > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -17740,7 +17740,7 @@ (define_insn_and_split "*sse4_1_<code>v2 > (const_int 1)) 0) > (parallel [(const_int 0) (const_int 1)]))))] > "TARGET_SSE4_1 && <mask_avx512vl_condition> > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -17804,7 +17804,7 @@ (define_insn_and_split "*sse4_1_<code>v2 > (const_int 0)) 0) > (parallel [(const_int 0) (const_int 1)]))))] > "TARGET_SSE4_1 && <mask_avx512vl_condition> > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(set (match_dup 0) > @@ -18087,7 +18087,7 @@ (define_insn_and_split "sse4_2_pcmpestr" > (match_dup 6)] > UNSPEC_PCMPESTR))] > "TARGET_SSE4_2 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(const_int 0)] > @@ -18223,7 +18223,7 @@ (define_insn_and_split "sse4_2_pcmpistr" > (match_dup 4)] > UNSPEC_PCMPISTR))] > "TARGET_SSE4_2 > - && can_create_pseudo_p ()" > + && ix86_pre_reload_split ()" > "#" > "&& 1" > [(const_int 0)] > > Jakub >