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[AArch64] Add more unpredicated MOVPRFX alternatives 

FABD and some immediate instructions were missing MOVPRFX alternatives.
This is tested by the ACLE patches but is really an independent improvement.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
	    Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

gcc/
	* config/aarch64/aarch64-sve.md (add<SVE_I:mode>3, sub<SVE_I:mode>3)
	(<LOGICAL:optab><SVE_I:mode>3, *add<SVE_F:mode>3, *mul<SVE_F:mode>3)
	(*fabd<SVE_F:mode>3): Add more MOVPRFX alternatives.

Co-Authored-By: Kugan Vivekanandarajah <kuganv@linaro.org>

From-SVN: r274513
This commit is contained in:
Richard Sandiford 2019-08-15 08:32:07 +00:00 committed by Richard Sandiford
parent 7d1f24018b
commit 5e176a613e
2 changed files with 51 additions and 27 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
Kugan Vivekanandarajah <kugan.vivekanandarajah@linaro.org>
* config/aarch64/aarch64-sve.md (add<SVE_I:mode>3, sub<SVE_I:mode>3)
(<LOGICAL:optab><SVE_I:mode>3, *add<SVE_F:mode>3, *mul<SVE_F:mode>3)
(*fabd<SVE_F:mode>3): Add more MOVPRFX alternatives.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>

71
gcc/config/aarch64/aarch64-sve.md
View File

@ -1937,16 +1937,19 @@
;; -------------------------------------------------------------------------
(define_insn "add<mode>3"
[(set (match_operand:SVE_I 0 "register_operand" "=w, w, w, w")
[(set (match_operand:SVE_I 0 "register_operand" "=w, w, w, ?w, ?w, w")
(plus:SVE_I
(match_operand:SVE_I 1 "register_operand" "%0, 0, 0, w")
(match_operand:SVE_I 2 "aarch64_sve_add_operand" "vsa, vsn, vsi, w")))]
(match_operand:SVE_I 1 "register_operand" "%0, 0, 0, w, w, w")
(match_operand:SVE_I 2 "aarch64_sve_add_operand" "vsa, vsn, vsi, vsa, vsn, w")))]
"TARGET_SVE"
"@
add\t%0.<Vetype>, %0.<Vetype>, #%D2
sub\t%0.<Vetype>, %0.<Vetype>, #%N2
* return aarch64_output_sve_inc_dec_immediate (\"%0.<Vetype>\", operands[2]);
movprfx\t%0, %1\;add\t%0.<Vetype>, %0.<Vetype>, #%D2
movprfx\t%0, %1\;sub\t%0.<Vetype>, %0.<Vetype>, #%N2
add\t%0.<Vetype>, %1.<Vetype>, %2.<Vetype>"
[(set_attr "movprfx" "*,*,*,yes,yes,*")]
)
;; Merging forms are handled through SVE_INT_BINARY.
@ -1960,14 +1963,16 @@
;; -------------------------------------------------------------------------
(define_insn "sub<mode>3"
[(set (match_operand:SVE_I 0 "register_operand" "=w, w")
[(set (match_operand:SVE_I 0 "register_operand" "=w, w, ?&w")
(minus:SVE_I
(match_operand:SVE_I 1 "aarch64_sve_arith_operand" "w, vsa")
(match_operand:SVE_I 2 "register_operand" "w, 0")))]
(match_operand:SVE_I 1 "aarch64_sve_arith_operand" "w, vsa, vsa")
(match_operand:SVE_I 2 "register_operand" "w, 0, w")))]
"TARGET_SVE"
"@
sub\t%0.<Vetype>, %1.<Vetype>, %2.<Vetype>
subr\t%0.<Vetype>, %0.<Vetype>, #%D1"
subr\t%0.<Vetype>, %0.<Vetype>, #%D1
movprfx\t%0, %2\;subr\t%0.<Vetype>, %0.<Vetype>, #%D1"
[(set_attr "movprfx" "*,*,yes")]
)
;; Merging forms are handled through SVE_INT_BINARY.
@ -2320,14 +2325,16 @@
;; Unpredicated integer binary logical operations.
(define_insn "<optab><mode>3"
[(set (match_operand:SVE_I 0 "register_operand" "=w, w")
[(set (match_operand:SVE_I 0 "register_operand" "=w, ?w, w")
(LOGICAL:SVE_I
(match_operand:SVE_I 1 "register_operand" "%0, w")
(match_operand:SVE_I 2 "aarch64_sve_logical_operand" "vsl, w")))]
(match_operand:SVE_I 1 "register_operand" "%0, w, w")
(match_operand:SVE_I 2 "aarch64_sve_logical_operand" "vsl, vsl, w")))]
"TARGET_SVE"
"@
<logical>\t%0.<Vetype>, %0.<Vetype>, #%C2
movprfx\t%0, %1\;<logical>\t%0.<Vetype>, %0.<Vetype>, #%C2
<logical>\t%0.d, %1.d, %2.d"
[(set_attr "movprfx" "*,yes,*")]
)
;; Merging forms are handled through SVE_INT_BINARY.
@ -2773,23 +2780,27 @@
;; Predicated floating-point addition.
(define_insn_and_split "*add<mode>3"
[(set (match_operand:SVE_F 0 "register_operand" "=w, w, w")
[(set (match_operand:SVE_F 0 "register_operand" "=w, w, w, ?&w, ?&w")
(unspec:SVE_F
[(match_operand:<VPRED> 1 "register_operand" "Upl, Upl, Upl")
(match_operand:SI 4 "aarch64_sve_gp_strictness" "i, i, Z")
(match_operand:SVE_F 2 "register_operand" "%0, 0, w")
(match_operand:SVE_F 3 "aarch64_sve_float_arith_with_sub_operand" "vsA, vsN, w")]
[(match_operand:<VPRED> 1 "register_operand" "Upl, Upl, Upl, Upl, Upl")
(match_operand:SI 4 "aarch64_sve_gp_strictness" "i, i, Z, i, i")
(match_operand:SVE_F 2 "register_operand" "%0, 0, w, w, w")
(match_operand:SVE_F 3 "aarch64_sve_float_arith_with_sub_operand" "vsA, vsN, w, vsA, vsN")]
UNSPEC_COND_FADD))]
"TARGET_SVE"
"@
fadd\t%0.<Vetype>, %1/m, %0.<Vetype>, #%3
fsub\t%0.<Vetype>, %1/m, %0.<Vetype>, #%N3
#"
#
movprfx\t%0, %2\;fadd\t%0.<Vetype>, %1/m, %0.<Vetype>, #%3
movprfx\t%0, %2\;fsub\t%0.<Vetype>, %1/m, %0.<Vetype>, #%N3"
; Split the unpredicated form after reload, so that we don't have
; the unnecessary PTRUE.
"&& reload_completed
&& register_operand (operands[3], <MODE>mode)"
[(set (match_dup 0) (plus:SVE_F (match_dup 2) (match_dup 3)))]
""
[(set_attr "movprfx" "*,*,*,yes,yes")]
)
;; Predicated floating-point addition of a constant, merging with the
@ -2972,23 +2983,26 @@
;; Predicated floating-point absolute difference.
(define_insn_and_rewrite "*fabd<mode>3"
[(set (match_operand:SVE_F 0 "register_operand" "=w")
[(set (match_operand:SVE_F 0 "register_operand" "=w, ?&w")
(unspec:SVE_F
[(match_operand:<VPRED> 1 "register_operand" "Upl")
[(match_operand:<VPRED> 1 "register_operand" "Upl, Upl")
(match_operand:SI 4 "aarch64_sve_gp_strictness")
(unspec:SVE_F
[(match_operand 5)
(match_operand:SI 6 "aarch64_sve_gp_strictness")
(match_operand:SVE_F 2 "register_operand" "0")
(match_operand:SVE_F 3 "register_operand" "w")]
(match_operand:SVE_F 2 "register_operand" "%0, w")
(match_operand:SVE_F 3 "register_operand" "w, w")]
UNSPEC_COND_FSUB)]
UNSPEC_COND_FABS))]
"TARGET_SVE && aarch64_sve_pred_dominates_p (&operands[5], operands[1])"
"fabd\t%0.<Vetype>, %1/m, %2.<Vetype>, %3.<Vetype>"
"@
fabd\t%0.<Vetype>, %1/m, %0.<Vetype>, %3.<Vetype>
movprfx\t%0, %2\;fabd\t%0.<Vetype>, %1/m, %0.<Vetype>, %3.<Vetype>"
"&& !rtx_equal_p (operands[1], operands[5])"
{
operands[5] = copy_rtx (operands[1]);
}
[(set_attr "movprfx" "*,yes")]
)
;; Predicated floating-point absolute difference, merging with the first
@ -3117,22 +3131,25 @@
;; Predicated floating-point multiplication.
(define_insn_and_split "*mul<mode>3"
[(set (match_operand:SVE_F 0 "register_operand" "=w, w")
[(set (match_operand:SVE_F 0 "register_operand" "=w, w, ?&w")
(unspec:SVE_F
[(match_operand:<VPRED> 1 "register_operand" "Upl, Upl")
(match_operand:SI 4 "aarch64_sve_gp_strictness" "i, Z")
(match_operand:SVE_F 2 "register_operand" "%0, w")
(match_operand:SVE_F 3 "aarch64_sve_float_mul_operand" "vsM, w")]
[(match_operand:<VPRED> 1 "register_operand" "Upl, Upl, Upl")
(match_operand:SI 4 "aarch64_sve_gp_strictness" "i, Z, i")
(match_operand:SVE_F 2 "register_operand" "%0, w, 0")
(match_operand:SVE_F 3 "aarch64_sve_float_mul_operand" "vsM, w, vsM")]
UNSPEC_COND_FMUL))]
"TARGET_SVE"
"@
fmul\t%0.<Vetype>, %1/m, %0.<Vetype>, #%3
#"
#
movprfx\t%0, %2\;fmul\t%0.<Vetype>, %1/m, %0.<Vetype>, #%3"
; Split the unpredicated form after reload, so that we don't have
; the unnecessary PTRUE.
"&& reload_completed
&& register_operand (operands[3], <MODE>mode)"
[(set (match_dup 0) (mult:SVE_F (match_dup 2) (match_dup 3)))]
""
[(set_attr "movprfx" "*,*,yes")]
)
;; Merging forms are handled through SVE_COND_FP_BINARY and