altivec.md

Mac OS X 10.4.9 for x86 Source Code gcc 实现源代码

        (unspec:V4SI [(match_operand:V4SI 1 "register_operand" "v")
                      (match_operand:V4SI 2 "register_operand" "v")
                      (match_operand:V4SI 3 "register_operand" "v")] 
	              UNSPEC_VSEL4SI))]
  "TARGET_ALTIVEC"
  "vsel %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vsel_v4sf"
  [(set (match_operand:V4SF 0 "register_operand" "=v")
        (unspec:V4SF [(match_operand:V4SF 1 "register_operand" "v")
                      (match_operand:V4SF 2 "register_operand" "v")
                      (match_operand:V4SI 3 "register_operand" "v")] 
	              UNSPEC_VSEL4SF))]
  "TARGET_ALTIVEC"
  "vsel %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vsel_v8hi"
  [(set (match_operand:V8HI 0 "register_operand" "=v")
        (unspec:V8HI [(match_operand:V8HI 1 "register_operand" "v")
                      (match_operand:V8HI 2 "register_operand" "v")
                      (match_operand:V8HI 3 "register_operand" "v")] 
	              UNSPEC_VSEL8HI))]
  "TARGET_ALTIVEC"
  "vsel %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vsel_v16qi"
  [(set (match_operand:V16QI 0 "register_operand" "=v")
        (unspec:V16QI [(match_operand:V16QI 1 "register_operand" "v")
                       (match_operand:V16QI 2 "register_operand" "v")
                       (match_operand:V16QI 3 "register_operand" "v")] 
	               UNSPEC_VSEL16QI))]
  "TARGET_ALTIVEC"
  "vsel %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vsldoi_v4si"
  [(set (match_operand:V4SI 0 "register_operand" "=v")
        (unspec:V4SI [(match_operand:V4SI 1 "register_operand" "v")
		      (match_operand:V4SI 2 "register_operand" "v")
                      (match_operand:QI 3 "immediate_operand" "i")] 163))]
  "TARGET_ALTIVEC"
  "vsldoi %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vsldoi_v4sf"
  [(set (match_operand:V4SF 0 "register_operand" "=v")
        (unspec:V4SF [(match_operand:V4SF 1 "register_operand" "v")
		      (match_operand:V4SF 2 "register_operand" "v")
                      (match_operand:QI 3 "immediate_operand" "i")] 164))]
  "TARGET_ALTIVEC"
  "vsldoi %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vsldoi_v8hi"
  [(set (match_operand:V8HI 0 "register_operand" "=v")
        (unspec:V8HI [(match_operand:V8HI 1 "register_operand" "v")
		      (match_operand:V8HI 2 "register_operand" "v")
                      (match_operand:QI 3 "immediate_operand" "i")] 165))]
  "TARGET_ALTIVEC"
  "vsldoi %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vsldoi_v16qi"
  [(set (match_operand:V16QI 0 "register_operand" "=v")
        (unspec:V16QI [(match_operand:V16QI 1 "register_operand" "v")
		       (match_operand:V16QI 2 "register_operand" "v")
		       (match_operand:QI 3 "immediate_operand" "i")] 166))]
  "TARGET_ALTIVEC"
  "vsldoi %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vupkhsb"
  [(set (match_operand:V8HI 0 "register_operand" "=v")
  	(unspec:V8HI [(match_operand:V16QI 1 "register_operand" "v")] 167))]
  "TARGET_ALTIVEC"
  "vupkhsb %0,%1"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vupkhpx"
  [(set (match_operand:V4SI 0 "register_operand" "=v")
  	(unspec:V4SI [(match_operand:V8HI 1 "register_operand" "v")] 168))]
  "TARGET_ALTIVEC"
  "vupkhpx %0,%1"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vupkhsh"
  [(set (match_operand:V4SI 0 "register_operand" "=v")
  	(unspec:V4SI [(match_operand:V8HI 1 "register_operand" "v")] 169))]
  "TARGET_ALTIVEC"
  "vupkhsh %0,%1"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vupklsb"
  [(set (match_operand:V8HI 0 "register_operand" "=v")
  	(unspec:V8HI [(match_operand:V16QI 1 "register_operand" "v")] 170))]
  "TARGET_ALTIVEC"
  "vupklsb %0,%1"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vupklpx"
  [(set (match_operand:V4SI 0 "register_operand" "=v")
  	(unspec:V4SI [(match_operand:V8HI 1 "register_operand" "v")] 171))]
  "TARGET_ALTIVEC"
  "vupklpx %0,%1"
  [(set_attr "type" "vecperm")])

(define_insn "altivec_vupklsh"
  [(set (match_operand:V4SI 0 "register_operand" "=v")
  	(unspec:V4SI [(match_operand:V8HI 1 "register_operand" "v")] 172))]
  "TARGET_ALTIVEC"
  "vupklsh %0,%1"
  [(set_attr "type" "vecperm")])

;; AltiVec predicates.

(define_expand "cr6_test_for_zero"
  [(set (match_operand:SI 0 "register_operand" "=r")
	(eq:SI (reg:CC 74)
	       (const_int 0)))]
  "TARGET_ALTIVEC"
  "")	

(define_expand "cr6_test_for_zero_reverse"
  [(set (match_operand:SI 0 "register_operand" "=r")
	(eq:SI (reg:CC 74)
	       (const_int 0)))
   (set (match_dup 0) (minus:SI (const_int 1) (match_dup 0)))]
  "TARGET_ALTIVEC"
  "")

(define_expand "cr6_test_for_lt"
  [(set (match_operand:SI 0 "register_operand" "=r")
	(lt:SI (reg:CC 74)
	       (const_int 0)))]
  "TARGET_ALTIVEC"
  "")

(define_expand "cr6_test_for_lt_reverse"
  [(set (match_operand:SI 0 "register_operand" "=r")
	(lt:SI (reg:CC 74)
	       (const_int 0)))
   (set (match_dup 0) (minus:SI (const_int 1) (match_dup 0)))]
  "TARGET_ALTIVEC"
  "")

;; We can get away with generating the opcode on the fly (%3 below)
;; because all the predicates have the same scheduling parameters.

(define_insn "altivec_predicate_v4sf"
  [(set (reg:CC 74)
	(unspec:CC [(match_operand:V4SF 1 "register_operand" "v")
		    (match_operand:V4SF 2 "register_operand" "v")
		    (match_operand 3 "any_operand" "")] 174))
   (clobber (match_scratch:V4SF 0 "=v"))]
  "TARGET_ALTIVEC"
  "%3 %0,%1,%2"
[(set_attr "type" "veccmp")])

(define_insn "altivec_predicate_<mode>"
  [(set (reg:CC 74)
	(unspec:CC [(match_operand:VI 1 "register_operand" "v")
		    (match_operand:VI 2 "register_operand" "v")
		    (match_operand 3 "any_operand" "")] 173))
   (clobber (match_scratch:VI 0 "=v"))]
  "TARGET_ALTIVEC"
  "%3 %0,%1,%2"
[(set_attr "type" "veccmp")])

(define_insn "altivec_mtvscr"
  [(set (reg:SI 110)
	(unspec_volatile:SI
	 [(match_operand:V4SI 0 "register_operand" "v")] 186))]
  "TARGET_ALTIVEC"
  "mtvscr %0"
  [(set_attr "type" "vecsimple")])

(define_insn "altivec_mfvscr"
  [(set (match_operand:V8HI 0 "register_operand" "=v")
	(unspec_volatile:V8HI [(reg:SI 110)] 187))]
  "TARGET_ALTIVEC"
  "mfvscr %0"
  [(set_attr "type" "vecsimple")])

(define_insn "altivec_dssall"
  [(unspec_volatile [(const_int 0)] 188)]
  "TARGET_ALTIVEC"
  "dssall"
  [(set_attr "type" "vecsimple")])

(define_insn "altivec_dss"
  [(unspec_volatile [(match_operand:QI 0 "immediate_operand" "i")] 189)]
  "TARGET_ALTIVEC"
  "dss %0"
  [(set_attr "type" "vecsimple")])

(define_insn "altivec_dst"
  [(unspec [(match_operand 0 "register_operand" "b")
	    (match_operand:SI 1 "register_operand" "r")
	    (match_operand:QI 2 "immediate_operand" "i")] 190)]
  "TARGET_ALTIVEC && GET_MODE (operands[0]) == Pmode"
  "dst %0,%1,%2"
  [(set_attr "type" "vecsimple")])

(define_insn "altivec_dstt"
  [(unspec [(match_operand 0 "register_operand" "b")
	    (match_operand:SI 1 "register_operand" "r")
	    (match_operand:QI 2 "immediate_operand" "i")] 191)]
  "TARGET_ALTIVEC && GET_MODE (operands[0]) == Pmode"
  "dstt %0,%1,%2"
  [(set_attr "type" "vecsimple")])

(define_insn "altivec_dstst"
  [(unspec [(match_operand 0 "register_operand" "b")
	    (match_operand:SI 1 "register_operand" "r")
	    (match_operand:QI 2 "immediate_operand" "i")] 192)]
  "TARGET_ALTIVEC && GET_MODE (operands[0]) == Pmode"
  "dstst %0,%1,%2"
  [(set_attr "type" "vecsimple")])

(define_insn "altivec_dststt"
  [(unspec [(match_operand 0 "register_operand" "b")
	    (match_operand:SI 1 "register_operand" "r")
	    (match_operand:QI 2 "immediate_operand" "i")] 193)]
  "TARGET_ALTIVEC && GET_MODE (operands[0]) == Pmode"
  "dststt %0,%1,%2"
  [(set_attr "type" "vecsimple")])

(define_insn "altivec_lvsl"
  [(set (match_operand:V16QI 0 "register_operand" "=v")
	(unspec:V16QI [(match_operand 1 "memory_operand" "m")] 194))]
  "TARGET_ALTIVEC"
  "lvsl %0,%y1"
  [(set_attr "type" "vecload")])

(define_insn "altivec_lvsr"
  [(set (match_operand:V16QI 0 "register_operand" "=v")
	(unspec:V16QI [(match_operand 1 "memory_operand" "m")] 195))]
  "TARGET_ALTIVEC"
  "lvsr %0,%y1"
  [(set_attr "type" "vecload")])

(define_expand "build_vector_mask_for_load"
  [(set (match_operand:V16QI 0 "register_operand" "=v")
	(unspec:V16QI [(match_operand 1 "memory_operand" "m")] 195))]
  "TARGET_ALTIVEC"
  "
{ 
  rtx addr;
  rtx temp;

  if (GET_CODE (operands[1]) != MEM)
    abort ();

  addr = XEXP (operands[1], 0);
  temp = gen_reg_rtx (GET_MODE (addr));
  emit_insn (gen_rtx_SET (VOIDmode, temp, 
			  gen_rtx_NEG (GET_MODE (addr), addr)));
  emit_insn (gen_altivec_lvsr (operands[0], 
			       gen_rtx_MEM (GET_MODE (operands[1]), temp)));
  DONE;
}")

;; Parallel some of the LVE* and STV*'s with unspecs because some have
;; identical rtl but different instructions-- and gcc gets confused.

(define_insn "altivec_lve<VI_char>x"
  [(parallel
    [(set (match_operand:VI 0 "register_operand" "=v")
	  (match_operand:VI 1 "memory_operand" "m"))
     (unspec [(const_int 0)] 196)])]
  "TARGET_ALTIVEC"
  "lve<VI_char>x %0,%y1"
  [(set_attr "type" "vecload")])

(define_insn "altivec_lvxl"
  [(parallel
    [(set (match_operand:V4SI 0 "register_operand" "=v")
	  (match_operand:V4SI 1 "memory_operand" "m"))
     (unspec [(const_int 0)] 213)])]
  "TARGET_ALTIVEC"
  "lvxl %0,%y1"
  [(set_attr "type" "vecload")])

(define_insn "altivec_lvx"
  [(set (match_operand:V4SI 0 "register_operand" "=v")
	(match_operand:V4SI 1 "memory_operand" "m"))]
  "TARGET_ALTIVEC"
  "lvx %0,%y1"
  [(set_attr "type" "vecload")])

(define_insn "altivec_stvx"
  [(parallel
    [(set (match_operand:V4SI 0 "memory_operand" "=m")
	  (match_operand:V4SI 1 "register_operand" "v"))
     (unspec [(const_int 0)] 201)])]
  "TARGET_ALTIVEC"
  "stvx %1,%y0"
  [(set_attr "type" "vecstore")])

(define_insn "altivec_stvxl"
  [(parallel
    [(set (match_operand:V4SI 0 "memory_operand" "=m")
	  (match_operand:V4SI 1 "register_operand" "v"))
     (unspec [(const_int 0)] 202)])]
  "TARGET_ALTIVEC"
  "stvxl %1,%y0"
  [(set_attr "type" "vecstore")])

(define_insn "altivec_stve<VI_char>x"
  [(parallel
    [(set (match_operand:VI 0 "memory_operand" "=m")
	  (match_operand:VI 1 "register_operand" "v"))
     (unspec [(const_int 0)] 203)])]
  "TARGET_ALTIVEC"
  "stve<VI_char>x %1,%y0"
  [(set_attr "type" "vecstore")])

(define_insn "abs<mode>2"
  [(set (match_operand:VI 0 "register_operand" "=v")
	(abs:VI (match_operand:VI 1 "register_operand" "v")))
   (clobber (match_scratch:VI 2 "=&v"))
   (clobber (match_scratch:VI 3 "=&v"))]
  "TARGET_ALTIVEC"
  "vspltisb %2,0\;vsubu<VI_char>m %3,%2,%1\;vmaxs<VI_char> %0,%1,%3"
  [(set_attr "type" "vecsimple")
   (set_attr "length" "12")])

(define_insn "absv4sf2"
  [(set (match_operand:V4SF 0 "register_operand" "=v")
        (abs:V4SF (match_operand:V4SF 1 "register_operand" "v")))
   (clobber (match_scratch:V4SF 2 "=&v"))
   (clobber (match_scratch:V4SF 3 "=&v"))]
  "TARGET_ALTIVEC"
  "vspltisw %2,-1\;vslw %3,%2,%2\;vandc %0,%1,%3"
  [(set_attr "type" "vecsimple")
   (set_attr "length" "12")])

(define_insn "altivec_abss_<mode>"
  [(set (match_operand:VI 0 "register_operand" "=v")
        (unspec:VI [(match_operand:VI 1 "register_operand" "v")] 210))
   (clobber (match_scratch:VI 2 "=&v"))
   (clobber (match_scratch:VI 3 "=&v"))]
  "TARGET_ALTIVEC"
  "vspltisb %2,0\;vsubs<VI_char>s %3,%2,%1\;vmaxs<VI_char> %0,%1,%3"
  [(set_attr "type" "vecsimple")
   (set_attr "length" "12")])

(define_insn "vec_realign_load_v4sf"
  [(set (match_operand:V4SF 0 "register_operand" "=v")
        (unspec:V4SF [(match_operand:V4SF 1 "register_operand" "v")
                      (match_operand:V4SF 2 "register_operand" "v")
                      (match_operand:V16QI 3 "register_operand" "v")] 216))]
  "TARGET_ALTIVEC"
  "vperm %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])

(define_insn "vec_realign_load_<mode>"
  [(set (match_operand:VI 0 "register_operand" "=v")
        (unspec:VI [(match_operand:VI 1 "register_operand" "v")
                    (match_operand:VI 2 "register_operand" "v")
                    (match_operand:V16QI 3 "register_operand" "v")] 215))]
  "TARGET_ALTIVEC"
  "vperm %0,%1,%2,%3"
  [(set_attr "type" "vecperm")])