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[RS6000] Migrate from reduc_xxx to reduc_xxx_scal optabs

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* config/rs6000/altivec.md (reduc_splus_<mode>): Rename to...
	(reduc_plus_scal_<mode>): ...this, add rs6000_expand_vector_extract.
	(reduc_uplus_v16qi): Remove.

	* config/rs6000/vector.md (VEC_reduc_name): Change "splus" to "plus".
	(reduc_<VEC_reduc_name>_v2df): Remove.
	(reduc_<VEC_reduc_name>_v4sf): Remove.
	(reduc_<VEC_reduc:VEC_reduc_name>_scal_<VEC_F:name>): New.

	* config/rs6000/vsx.md (vsx_reduc_<VEC_reduc_name>_v2df): Declare
	gen_ function by removing * prefix.
	(vsx_reduc_<VEC_reduc_name>_v4sf): Likewise.

From-SVN: r227965
This commit is contained in:
Alan Lawrence 2015-09-21 10:38:27 +00:00 committed by Alan Lawrence
parent 973dabae60
commit 5e8edf67f8
4 changed files with 42 additions and 49 deletions
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15
gcc/ChangeLog
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@ -1,3 +1,18 @@
2015-09-21 Alan Lawrence <alan.lawrence@arm.com>
* config/rs6000/altivec.md (reduc_splus_<mode>): Rename to...
(reduc_plus_scal_<mode>): ...this, add rs6000_expand_vector_extract.
(reduc_uplus_v16qi): Remove.
* config/rs6000/vector.md (VEC_reduc_name): Change "splus" to "plus".
(reduc_<VEC_reduc_name>_v2df): Remove.
(reduc_<VEC_reduc_name>_v4sf): Remove.
(reduc_<VEC_reduc:VEC_reduc_name>_scal_<VEC_F:name>): New.
* config/rs6000/vsx.md (vsx_reduc_<VEC_reduc_name>_v2df): Declare
gen_ function by removing * prefix.
(vsx_reduc_<VEC_reduc_name>_v4sf): Likewise.
2015-09-21 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR middle-end/60832

25
gcc/config/rs6000/altivec.md
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@ -2658,35 +2658,22 @@
operands[3] = gen_reg_rtx (GET_MODE (operands[0]));
})
(define_expand "reduc_splus_<mode>"
[(set (match_operand:VIshort 0 "register_operand" "=v")
(define_expand "reduc_plus_scal_<mode>"
[(set (match_operand:<VI_scalar> 0 "register_operand" "=v")
(unspec:VIshort [(match_operand:VIshort 1 "register_operand" "v")]
UNSPEC_REDUC_PLUS))]
"TARGET_ALTIVEC"
{
rtx vzero = gen_reg_rtx (V4SImode);
rtx vtmp1 = gen_reg_rtx (V4SImode);
rtx dest = gen_lowpart (V4SImode, operands[0]);
rtx vtmp2 = gen_reg_rtx (<MODE>mode);
rtx dest = gen_lowpart (V4SImode, vtmp2);
int elt = BYTES_BIG_ENDIAN ? GET_MODE_NUNITS (<MODE>mode) - 1 : 0;
emit_insn (gen_altivec_vspltisw (vzero, const0_rtx));
emit_insn (gen_altivec_vsum4s<VI_char>s (vtmp1, operands[1], vzero));
emit_insn (gen_altivec_vsumsws_direct (dest, vtmp1, vzero));
DONE;
})
(define_expand "reduc_uplus_v16qi"
[(set (match_operand:V16QI 0 "register_operand" "=v")
(unspec:V16QI [(match_operand:V16QI 1 "register_operand" "v")]
UNSPEC_REDUC_PLUS))]
"TARGET_ALTIVEC"
{
rtx vzero = gen_reg_rtx (V4SImode);
rtx vtmp1 = gen_reg_rtx (V4SImode);
rtx dest = gen_lowpart (V4SImode, operands[0]);
emit_insn (gen_altivec_vspltisw (vzero, const0_rtx));
emit_insn (gen_altivec_vsum4ubs (vtmp1, operands[1], vzero));
emit_insn (gen_altivec_vsumsws_direct (dest, vtmp1, vzero));
rs6000_expand_vector_extract (operands[0], vtmp2, elt);
DONE;
})

47
gcc/config/rs6000/vector.md
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@ -78,7 +78,7 @@
;; Vector reduction code iterators
(define_code_iterator VEC_reduc [plus smin smax])
(define_code_attr VEC_reduc_name [(plus "splus")
(define_code_attr VEC_reduc_name [(plus "plus")
(smin "smin")
(smax "smax")])
@ -1061,38 +1061,29 @@
"")
;; Vector reduction expanders for VSX
(define_expand "reduc_<VEC_reduc_name>_v2df"
[(parallel [(set (match_operand:V2DF 0 "vfloat_operand" "")
(VEC_reduc:V2DF
(vec_concat:V2DF
(vec_select:DF
(match_operand:V2DF 1 "vfloat_operand" "")
(parallel [(const_int 1)]))
(vec_select:DF
(match_dup 1)
(parallel [(const_int 0)])))
(match_dup 1)))
(clobber (match_scratch:V2DF 2 ""))])]
"VECTOR_UNIT_VSX_P (V2DFmode)"
"")
; The (VEC_reduc:V4SF
; The (VEC_reduc:...
; (op1)
; (unspec:V4SF [(const_int 0)] UNSPEC_REDUC))
; (unspec:... [(const_int 0)] UNSPEC_REDUC))
;
; is to allow us to use a code iterator, but not completely list all of the
; vector rotates, etc. to prevent canonicalization
(define_expand "reduc_<VEC_reduc_name>_v4sf"
[(parallel [(set (match_operand:V4SF 0 "vfloat_operand" "")
(VEC_reduc:V4SF
(unspec:V4SF [(const_int 0)] UNSPEC_REDUC)
(match_operand:V4SF 1 "vfloat_operand" "")))
(clobber (match_scratch:V4SF 2 ""))
(clobber (match_scratch:V4SF 3 ""))])]
"VECTOR_UNIT_VSX_P (V4SFmode)"
"")
(define_expand "reduc_<VEC_reduc:VEC_reduc_name>_scal_<VEC_F:mode>"
[(match_operand:<VEC_base> 0 "register_operand" "")
(VEC_reduc:VEC_F (match_operand:VEC_F 1 "vfloat_operand" "")
(unspec:VEC_F [(const_int 0)] UNSPEC_REDUC))]
"VECTOR_UNIT_VSX_P (<VEC_F:MODE>mode)"
{
rtx vec = gen_reg_rtx (<VEC_F:MODE>mode);
rtx elt = BYTES_BIG_ENDIAN
? gen_int_mode (GET_MODE_NUNITS (<VEC_F:MODE>mode) - 1, QImode)
: const0_rtx;
emit_insn (gen_vsx_reduc_<VEC_reduc:VEC_reduc_name>_<VEC_F:mode> (vec,
operand1));
emit_insn (gen_vsx_extract_<VEC_F:mode> (operand0, vec, elt));
DONE;
})
;;; Expanders for vector insn patterns shared between the SPE and TARGET_PAIRED systems.

4
gcc/config/rs6000/vsx.md
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@ -2289,7 +2289,7 @@
;; Vector reduction insns and splitters
(define_insn_and_split "*vsx_reduc_<VEC_reduc_name>_v2df"
(define_insn_and_split "vsx_reduc_<VEC_reduc_name>_v2df"
[(set (match_operand:V2DF 0 "vfloat_operand" "=&wd,&?wa,wd,?wa")
(VEC_reduc:V2DF
(vec_concat:V2DF
@ -2317,7 +2317,7 @@
[(set_attr "length" "8")
(set_attr "type" "veccomplex")])
(define_insn_and_split "*vsx_reduc_<VEC_reduc_name>_v4sf"
(define_insn_and_split "vsx_reduc_<VEC_reduc_name>_v4sf"
[(set (match_operand:V4SF 0 "vfloat_operand" "=wf,?wa")
(VEC_reduc:V4SF
(unspec:V4SF [(const_int 0)] UNSPEC_REDUC)