On Fri, Jul 23, 2021 at 1:13 PM Hongtao Liu <crazy...@gmail.com> wrote:
>
> On Thu, Jul 1, 2021 at 2:18 PM liuhongt <hongtao....@intel.com> wrote:
> >
> > From: "H.J. Lu" <hjl.to...@gmail.com>
> >
> > 1. FP16 vector xor/ior/and/andnot/abs/neg
> > 2. FP16 scalar abs/neg/copysign/xorsign
> >
> > gcc/ChangeLog:
> >
> > * config/i386/i386-expand.c (ix86_expand_fp_absneg_operator):
> > Handle HFmode.
> > (ix86_expand_copysign): Ditto.
> > (ix86_expand_xorsign): Ditto.
> > * config/i386/i386.c (ix86_build_const_vector): Handle HF vector
> > modes.
> > (ix86_build_signbit_mask): Ditto.
> > (ix86_can_change_mode_class): Ditto.
> > * config/i386/i386.md (SSEMODEF): Add HF mode.
> > (ssevecmodef): Ditto.
> > (<code><mode>2): Use MODEFH.
> > (*<code><mode>2_1): Ditto.
> > (define_split): Ditto.
> > (xorsign<mode>3): Ditto.
> > (@xorsign<mode>3_1): Ditto.
> As mentioned by uros, l think these also better have separate patterns for hf.
I realized there're parameters names in define_insn and
define_insn_and_split, and they will be called by xorsign/copysign
functions in i386-expand.c, for simplicity i'd like to keep the
macroization of HF patterns in this patch.
> > * config/i386/sse.md (VFB): New mode iterator.
> > (VFB_128_256): Ditto.
> > (VFB_512): Ditto.
> > (sseintvecmode2): Support HF vector mode.
> > (<code><mode>2): Use new mode iterator.
> > (*<code><mode>2): Ditto.
> > (copysign<mode>3): Ditto.
> > (xorsign<mode>3): Ditto.
> > (<code><mode>3<mask_name>): Ditto.
> > (<code><mode>3<mask_name>): Ditto.
> > (<sse>_andnot<mode>3<mask_name>): Adjust for HF vector mode.
> > (<sse>_andnot<mode>3<mask_name>): Ditto.
> > (*<code><mode>3<mask_name>): Ditto.
> > (*<code><mode>3<mask_name>): Ditto.
> > ---
> > gcc/config/i386/i386-expand.c | 12 +++-
> > gcc/config/i386/i386.c | 12 +++-
> > gcc/config/i386/i386.md | 40 ++++++-----
> > gcc/config/i386/sse.md | 128 ++++++++++++++++++++--------------
> > 4 files changed, 118 insertions(+), 74 deletions(-)
> >
> > diff --git a/gcc/config/i386/i386-expand.c b/gcc/config/i386/i386-expand.c
> > index 9233c6cd1e8..006f4bec8db 100644
> > --- a/gcc/config/i386/i386-expand.c
> > +++ b/gcc/config/i386/i386-expand.c
> > @@ -1781,6 +1781,8 @@ ix86_expand_fp_absneg_operator (enum rtx_code code,
> > machine_mode mode,
> > vmode = V4SFmode;
> > else if (mode == DFmode)
> > vmode = V2DFmode;
> > + else if (mode == HFmode)
> > + vmode = V8HFmode;
> > }
> >
> > dst = operands[0];
> > @@ -1918,7 +1920,9 @@ ix86_expand_copysign (rtx operands[])
> >
> > mode = GET_MODE (dest);
> >
> > - if (mode == SFmode)
> > + if (mode == HFmode)
> > + vmode = V8HFmode;
> > + else if (mode == SFmode)
> > vmode = V4SFmode;
> > else if (mode == DFmode)
> > vmode = V2DFmode;
> > @@ -1934,7 +1938,7 @@ ix86_expand_copysign (rtx operands[])
> > if (real_isneg (CONST_DOUBLE_REAL_VALUE (op0)))
> > op0 = simplify_unary_operation (ABS, mode, op0, mode);
> >
> > - if (mode == SFmode || mode == DFmode)
> > + if (mode == HFmode || mode == SFmode || mode == DFmode)
> > {
> > if (op0 == CONST0_RTX (mode))
> > op0 = CONST0_RTX (vmode);
> > @@ -2073,7 +2077,9 @@ ix86_expand_xorsign (rtx operands[])
> >
> > mode = GET_MODE (dest);
> >
> > - if (mode == SFmode)
> > + if (mode == HFmode)
> > + vmode = V8HFmode;
> > + else if (mode == SFmode)
> > vmode = V4SFmode;
> > else if (mode == DFmode)
> > vmode = V2DFmode;
> > diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
> > index dc0d440061b..17e1b5ea874 100644
> > --- a/gcc/config/i386/i386.c
> > +++ b/gcc/config/i386/i386.c
> > @@ -15374,6 +15374,9 @@ ix86_build_const_vector (machine_mode mode, bool
> > vect, rtx value)
> > case E_V2DImode:
> > gcc_assert (vect);
> > /* FALLTHRU */
> > + case E_V8HFmode:
> > + case E_V16HFmode:
> > + case E_V32HFmode:
> > case E_V16SFmode:
> > case E_V8SFmode:
> > case E_V4SFmode:
> > @@ -15412,6 +15415,13 @@ ix86_build_signbit_mask (machine_mode mode, bool
> > vect, bool invert)
> >
> > switch (mode)
> > {
> > + case E_V8HFmode:
> > + case E_V16HFmode:
> > + case E_V32HFmode:
> > + vec_mode = mode;
> > + imode = HImode;
> > + break;
> > +
> > case E_V16SImode:
> > case E_V16SFmode:
> > case E_V8SImode:
> > @@ -19198,7 +19208,7 @@ ix86_can_change_mode_class (machine_mode from,
> > machine_mode to,
> > disallow a change to these modes, reload will assume it's ok to
> > drop the subreg from (subreg:SI (reg:HI 100) 0). This affects
> > the vec_dupv4hi pattern. */
> > - if (GET_MODE_SIZE (from) < 4)
> > + if (GET_MODE_SIZE (from) < 4 && from != E_HFmode)
> > return false;
> > }
> >
> > diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
> > index 014aba187e1..a85c23d74f1 100644
> > --- a/gcc/config/i386/i386.md
> > +++ b/gcc/config/i386/i386.md
> > @@ -1233,9 +1233,10 @@ (define_mode_iterator MODEFH [(HF
> > "TARGET_AVX512FP16") SF DF])
> > ;; All x87 floating point modes plus HFmode
> > (define_mode_iterator X87MODEFH [HF SF DF XF])
> >
> > -;; All SSE floating point modes
> > -(define_mode_iterator SSEMODEF [SF DF TF])
> > -(define_mode_attr ssevecmodef [(SF "V4SF") (DF "V2DF") (TF "TF")])
> > +;; All SSE floating point modes and HFmode
> > +(define_mode_iterator SSEMODEF [HF SF DF TF])
> > +(define_mode_attr ssevecmodef [(HF "V8HF") (SF "V4SF") (DF "V2DF") (TF
> > "TF")])
> > +
> >
> > ;; SSE instruction suffix for various modes
> > (define_mode_attr ssemodesuffix
> > @@ -10529,8 +10530,8 @@ (define_insn_and_split "*nabstf2_1"
> > [(set_attr "isa" "noavx,noavx,avx,avx")])
> >
> > (define_expand "<code><mode>2"
> > - [(set (match_operand:X87MODEF 0 "register_operand")
> > - (absneg:X87MODEF (match_operand:X87MODEF 1 "register_operand")))]
> > + [(set (match_operand:X87MODEFH 0 "register_operand")
> > + (absneg:X87MODEFH (match_operand:X87MODEFH 1 "register_operand")))]
> > "TARGET_80387 || (SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)"
> > "ix86_expand_fp_absneg_operator (<CODE>, <MODE>mode, operands); DONE;")
> >
> > @@ -10559,9 +10560,9 @@ (define_split
> > "ix86_split_fp_absneg_operator (<CODE>, <MODE>mode, operands); DONE;")
> >
> > (define_insn "*<code><mode>2_1"
> > - [(set (match_operand:MODEF 0 "register_operand" "=x,x,Yv,f,!r")
> > - (absneg:MODEF
> > - (match_operand:MODEF 1 "register_operand" "0,x,Yv,0,0")))
> > + [(set (match_operand:MODEFH 0 "register_operand" "=x,x,Yv,f,!r")
> > + (absneg:MODEFH
> > + (match_operand:MODEFH 1 "register_operand" "0,x,Yv,0,0")))
> > (use (match_operand:<ssevecmode> 2 "vector_operand" "xBm,0,Yvm,X,X"))
> > (clobber (reg:CC FLAGS_REG))]
> > "TARGET_80387 || (SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)"
> > @@ -10572,7 +10573,8 @@ (define_insn "*<code><mode>2_1"
> > (match_test ("SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH"))
> > (if_then_else
> > (eq_attr "alternative" "3,4")
> > - (symbol_ref "TARGET_MIX_SSE_I387")
> > + (symbol_ref "TARGET_MIX_SSE_I387
> > + && <MODE>mode != HFmode")
> > (const_string "*"))
> > (if_then_else
> > (eq_attr "alternative" "3,4")
> > @@ -10580,9 +10582,9 @@ (define_insn "*<code><mode>2_1"
> > (symbol_ref "false"))))])
> >
> > (define_split
> > - [(set (match_operand:MODEF 0 "sse_reg_operand")
> > - (absneg:MODEF
> > - (match_operand:MODEF 1 "sse_reg_operand")))
> > + [(set (match_operand:MODEFH 0 "sse_reg_operand")
> > + (absneg:MODEFH
> > + (match_operand:MODEFH 1 "sse_reg_operand")))
> > (use (match_operand:<ssevecmodef> 2 "vector_operand"))
> > (clobber (reg:CC FLAGS_REG))]
> > "SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH
> > @@ -10706,17 +10708,17 @@ (define_split
> > "ix86_split_copysign_var (operands); DONE;")
> >
> > (define_expand "xorsign<mode>3"
> > - [(match_operand:MODEF 0 "register_operand")
> > - (match_operand:MODEF 1 "register_operand")
> > - (match_operand:MODEF 2 "register_operand")]
> > + [(match_operand:MODEFH 0 "register_operand")
> > + (match_operand:MODEFH 1 "register_operand")
> > + (match_operand:MODEFH 2 "register_operand")]
> > "SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH"
> > "ix86_expand_xorsign (operands); DONE;")
> >
> > (define_insn_and_split "@xorsign<mode>3_1"
> > - [(set (match_operand:MODEF 0 "register_operand" "=Yv")
> > - (unspec:MODEF
> > - [(match_operand:MODEF 1 "register_operand" "Yv")
> > - (match_operand:MODEF 2 "register_operand" "0")
> > + [(set (match_operand:MODEFH 0 "register_operand" "=Yv")
> > + (unspec:MODEFH
> > + [(match_operand:MODEFH 1 "register_operand" "Yv")
> > + (match_operand:MODEFH 2 "register_operand" "0")
> > (match_operand:<ssevecmode> 3 "nonimmediate_operand" "Yvm")]
> > UNSPEC_XORSIGN))]
> > "SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH"
> > diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
> > index fdcc0515228..7c594babcce 100644
> > --- a/gcc/config/i386/sse.md
> > +++ b/gcc/config/i386/sse.md
> > @@ -317,11 +317,26 @@ (define_mode_iterator VFH
> > (V16SF "TARGET_AVX512F") (V8SF "TARGET_AVX") V4SF
> > (V8DF "TARGET_AVX512F") (V4DF "TARGET_AVX") (V2DF "TARGET_SSE2")])
> >
> > +;; 128-, 256- and 512-bit float vector modes for bitwise operations
> > +(define_mode_iterator VFB
> > + [(V32HF "TARGET_AVX512FP16")
> > + (V16HF "TARGET_AVX512FP16")
> > + (V8HF "TARGET_AVX512FP16")
> > + (V16SF "TARGET_AVX512F") (V8SF "TARGET_AVX") V4SF
> > + (V8DF "TARGET_AVX512F") (V4DF "TARGET_AVX") (V2DF "TARGET_SSE2")])
> > +
> > ;; 128- and 256-bit float vector modes
> > (define_mode_iterator VF_128_256
> > [(V8SF "TARGET_AVX") V4SF
> > (V4DF "TARGET_AVX") (V2DF "TARGET_SSE2")])
> >
> > +;; 128- and 256-bit float vector modes for bitwise operations
> > +(define_mode_iterator VFB_128_256
> > + [(V16HF "TARGET_AVX512FP16")
> > + (V8HF "TARGET_AVX512FP16")
> > + (V8SF "TARGET_AVX") V4SF
> > + (V4DF "TARGET_AVX") (V2DF "TARGET_SSE2")])
> > +
> > ;; All SFmode vector float modes
> > (define_mode_iterator VF1
> > [(V16SF "TARGET_AVX512F") (V8SF "TARGET_AVX") V4SF])
> > @@ -374,6 +389,10 @@ (define_mode_iterator VF_256
> > (define_mode_iterator VF_512
> > [V16SF V8DF])
> >
> > +;; All 512bit vector float modes for bitwise operations
> > +(define_mode_iterator VFB_512
> > + [(V32HF "TARGET_AVX512FP16") V16SF V8DF])
> > +
> > (define_mode_iterator VI48_AVX512VL
> > [V16SI (V8SI "TARGET_AVX512VL") (V4SI "TARGET_AVX512VL")
> > V8DI (V4DI "TARGET_AVX512VL") (V2DI "TARGET_AVX512VL")])
> > @@ -923,7 +942,8 @@ (define_mode_attr sseintvecmode
> >
> > (define_mode_attr sseintvecmode2
> > [(V8DF "XI") (V4DF "OI") (V2DF "TI")
> > - (V8SF "OI") (V4SF "TI")])
> > + (V8SF "OI") (V4SF "TI")
> > + (V16HF "OI") (V8HF "TI")])
> >
> > (define_mode_attr sseintvecmodelower
> > [(V16SF "v16si") (V8DF "v8di")
> > @@ -1968,22 +1988,22 @@ (define_insn "kunpckdi"
> > ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> >
> > (define_expand "<code><mode>2"
> > - [(set (match_operand:VF 0 "register_operand")
> > - (absneg:VF
> > - (match_operand:VF 1 "register_operand")))]
> > + [(set (match_operand:VFB 0 "register_operand")
> > + (absneg:VFB
> > + (match_operand:VFB 1 "register_operand")))]
> > "TARGET_SSE"
> > "ix86_expand_fp_absneg_operator (<CODE>, <MODE>mode, operands); DONE;")
> >
> > (define_insn_and_split "*<code><mode>2"
> > - [(set (match_operand:VF 0 "register_operand" "=x,x,v,v")
> > - (absneg:VF
> > - (match_operand:VF 1 "vector_operand" "0,xBm,v,m")))
> > - (use (match_operand:VF 2 "vector_operand" "xBm,0,vm,v"))]
> > + [(set (match_operand:VFB 0 "register_operand" "=x,x,v,v")
> > + (absneg:VFB
> > + (match_operand:VFB 1 "vector_operand" "0,xBm,v,m")))
> > + (use (match_operand:VFB 2 "vector_operand" "xBm,0,vm,v"))]
> > "TARGET_SSE"
> > "#"
> > "&& reload_completed"
> > [(set (match_dup 0)
> > - (<absneg_op>:VF (match_dup 1) (match_dup 2)))]
> > + (<absneg_op>:VFB (match_dup 1) (match_dup 2)))]
> > {
> > if (TARGET_AVX)
> > {
> > @@ -3893,11 +3913,11 @@ (define_expand
> > "vcond_mask_<mode><sseintvecmodelower>"
> > ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> >
> > (define_insn "<sse>_andnot<mode>3<mask_name>"
> > - [(set (match_operand:VF_128_256 0 "register_operand" "=x,x,v,v")
> > - (and:VF_128_256
> > - (not:VF_128_256
> > - (match_operand:VF_128_256 1 "register_operand" "0,x,v,v"))
> > - (match_operand:VF_128_256 2 "vector_operand" "xBm,xm,vm,vm")))]
> > + [(set (match_operand:VFB_128_256 0 "register_operand" "=x,x,v,v")
> > + (and:VFB_128_256
> > + (not:VFB_128_256
> > + (match_operand:VFB_128_256 1 "register_operand" "0,x,v,v"))
> > + (match_operand:VFB_128_256 2 "vector_operand" "xBm,xm,vm,vm")))]
> > "TARGET_SSE && <mask_avx512vl_condition>"
> > {
> > char buf[128];
> > @@ -3920,6 +3940,8 @@ (define_insn "<sse>_andnot<mode>3<mask_name>"
> >
> > switch (get_attr_mode (insn))
> > {
> > + case MODE_V16HF:
> > + case MODE_V8HF:
> > case MODE_V8SF:
> > case MODE_V4SF:
> > suffix = "ps";
> > @@ -3958,11 +3980,11 @@ (define_insn "<sse>_andnot<mode>3<mask_name>"
> > (const_string "<MODE>")))])
> >
> > (define_insn "<sse>_andnot<mode>3<mask_name>"
> > - [(set (match_operand:VF_512 0 "register_operand" "=v")
> > - (and:VF_512
> > - (not:VF_512
> > - (match_operand:VF_512 1 "register_operand" "v"))
> > - (match_operand:VF_512 2 "nonimmediate_operand" "vm")))]
> > + [(set (match_operand:VFB_512 0 "register_operand" "=v")
> > + (and:VFB_512
> > + (not:VFB_512
> > + (match_operand:VFB_512 1 "register_operand" "v"))
> > + (match_operand:VFB_512 2 "nonimmediate_operand" "vm")))]
> > "TARGET_AVX512F"
> > {
> > char buf[128];
> > @@ -3972,8 +3994,9 @@ (define_insn "<sse>_andnot<mode>3<mask_name>"
> > suffix = "<ssemodesuffix>";
> > ops = "";
> >
> > - /* There is no vandnp[sd] in avx512f. Use vpandn[qd]. */
> > - if (!TARGET_AVX512DQ)
> > + /* Since there are no vandnp[sd] without AVX512DQ nor vandnph,
> > + use vp<logic>[dq]. */
> > + if (!TARGET_AVX512DQ || <MODE>mode == V32HFmode)
> > {
> > suffix = GET_MODE_INNER (<MODE>mode) == DFmode ? "q" : "d";
> > ops = "p";
> > @@ -3993,26 +4016,26 @@ (define_insn "<sse>_andnot<mode>3<mask_name>"
> > (const_string "XI")))])
> >
> > (define_expand "<code><mode>3<mask_name>"
> > - [(set (match_operand:VF_128_256 0 "register_operand")
> > - (any_logic:VF_128_256
> > - (match_operand:VF_128_256 1 "vector_operand")
> > - (match_operand:VF_128_256 2 "vector_operand")))]
> > + [(set (match_operand:VFB_128_256 0 "register_operand")
> > + (any_logic:VFB_128_256
> > + (match_operand:VFB_128_256 1 "vector_operand")
> > + (match_operand:VFB_128_256 2 "vector_operand")))]
> > "TARGET_SSE && <mask_avx512vl_condition>"
> > "ix86_fixup_binary_operands_no_copy (<CODE>, <MODE>mode, operands);")
> >
> > (define_expand "<code><mode>3<mask_name>"
> > - [(set (match_operand:VF_512 0 "register_operand")
> > - (any_logic:VF_512
> > - (match_operand:VF_512 1 "nonimmediate_operand")
> > - (match_operand:VF_512 2 "nonimmediate_operand")))]
> > + [(set (match_operand:VFB_512 0 "register_operand")
> > + (any_logic:VFB_512
> > + (match_operand:VFB_512 1 "nonimmediate_operand")
> > + (match_operand:VFB_512 2 "nonimmediate_operand")))]
> > "TARGET_AVX512F"
> > "ix86_fixup_binary_operands_no_copy (<CODE>, <MODE>mode, operands);")
> >
> > (define_insn "*<code><mode>3<mask_name>"
> > - [(set (match_operand:VF_128_256 0 "register_operand" "=x,x,v,v")
> > - (any_logic:VF_128_256
> > - (match_operand:VF_128_256 1 "vector_operand" "%0,x,v,v")
> > - (match_operand:VF_128_256 2 "vector_operand" "xBm,xm,vm,vm")))]
> > + [(set (match_operand:VFB_128_256 0 "register_operand" "=x,x,v,v")
> > + (any_logic:VFB_128_256
> > + (match_operand:VFB_128_256 1 "vector_operand" "%0,x,v,v")
> > + (match_operand:VFB_128_256 2 "vector_operand" "xBm,xm,vm,vm")))]
> > "TARGET_SSE && <mask_avx512vl_condition>
> > && !(MEM_P (operands[1]) && MEM_P (operands[2]))"
> > {
> > @@ -4036,6 +4059,8 @@ (define_insn "*<code><mode>3<mask_name>"
> >
> > switch (get_attr_mode (insn))
> > {
> > + case MODE_V16HF:
> > + case MODE_V8HF:
> > case MODE_V8SF:
> > case MODE_V4SF:
> > suffix = "ps";
> > @@ -4074,10 +4099,10 @@ (define_insn "*<code><mode>3<mask_name>"
> > (const_string "<MODE>")))])
> >
> > (define_insn "*<code><mode>3<mask_name>"
> > - [(set (match_operand:VF_512 0 "register_operand" "=v")
> > - (any_logic:VF_512
> > - (match_operand:VF_512 1 "nonimmediate_operand" "%v")
> > - (match_operand:VF_512 2 "nonimmediate_operand" "vm")))]
> > + [(set (match_operand:VFB_512 0 "register_operand" "=v")
> > + (any_logic:VFB_512
> > + (match_operand:VFB_512 1 "nonimmediate_operand" "%v")
> > + (match_operand:VFB_512 2 "nonimmediate_operand" "vm")))]
> > "TARGET_AVX512F && !(MEM_P (operands[1]) && MEM_P (operands[2]))"
> > {
> > char buf[128];
> > @@ -4087,8 +4112,9 @@ (define_insn "*<code><mode>3<mask_name>"
> > suffix = "<ssemodesuffix>";
> > ops = "";
> >
> > - /* There is no v<logic>p[sd] in avx512f. Use vp<logic>[dq]. */
> > - if (!TARGET_AVX512DQ)
> > + /* Since there are no v<logic>p[sd] without AVX512DQ nor v<logic>ph,
> > + use vp<logic>[dq]. */
> > + if (!TARGET_AVX512DQ || <MODE>mode == V32HFmode)
> > {
> > suffix = GET_MODE_INNER (<MODE>mode) == DFmode ? "q" : "d";
> > ops = "p";
> > @@ -4109,14 +4135,14 @@ (define_insn "*<code><mode>3<mask_name>"
> >
> > (define_expand "copysign<mode>3"
> > [(set (match_dup 4)
> > - (and:VF
> > - (not:VF (match_dup 3))
> > - (match_operand:VF 1 "vector_operand")))
> > + (and:VFB
> > + (not:VFB (match_dup 3))
> > + (match_operand:VFB 1 "vector_operand")))
> > (set (match_dup 5)
> > - (and:VF (match_dup 3)
> > - (match_operand:VF 2 "vector_operand")))
> > - (set (match_operand:VF 0 "register_operand")
> > - (ior:VF (match_dup 4) (match_dup 5)))]
> > + (and:VFB (match_dup 3)
> > + (match_operand:VFB 2 "vector_operand")))
> > + (set (match_operand:VFB 0 "register_operand")
> > + (ior:VFB (match_dup 4) (match_dup 5)))]
> > "TARGET_SSE"
> > {
> > operands[3] = ix86_build_signbit_mask (<MODE>mode, 1, 0);
> > @@ -4127,11 +4153,11 @@ (define_expand "copysign<mode>3"
> >
> > (define_expand "xorsign<mode>3"
> > [(set (match_dup 4)
> > - (and:VF (match_dup 3)
> > - (match_operand:VF 2 "vector_operand")))
> > - (set (match_operand:VF 0 "register_operand")
> > - (xor:VF (match_dup 4)
> > - (match_operand:VF 1 "vector_operand")))]
> > + (and:VFB (match_dup 3)
> > + (match_operand:VFB 2 "vector_operand")))
> > + (set (match_operand:VFB 0 "register_operand")
> > + (xor:VFB (match_dup 4)
> > + (match_operand:VFB 1 "vector_operand")))]
> > "TARGET_SSE"
> > {
> > operands[3] = ix86_build_signbit_mask (<MODE>mode, 1, 0);
> > --
> > 2.18.1
> >
>
>
> --
> BR,
> Hongtao
--
BR,
Hongtao
