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x86: vpermil2p{s,d} have no commutative operands 

While either of the last two operands can be in memory, they can't be
swapped.

gcc/
2017-05-03  Jan Beulich  <jbeulich@suse.com>

	* config/i386/sse.md (xop_vpermil2<mode>3): Do not allow operand
	swapping, add (x,x,m,x,n) alternative.

From-SVN: r247554
This commit is contained in:
Jan Beulich 2017-05-03 15:36:29 +00:00 committed by Jan Beulich
parent 6987b50fcc
commit 6dc0137e89
2 changed files with 13 additions and 5 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2017-05-03 Jan Beulich <jbeulich@suse.com>
Backport from mainline
2017-05-01 Jan Beulich <jbeulich@suse.com>
* config/i386/sse.md (xop_vpermil2<mode>3): Do not allow operand
swapping, add (x,x,m,x,n) alternative.
2017-05-03 Richard Biener <rguenther@suse.de>
Backport from mainline

10
gcc/config/i386/sse.md
View File

@ -17105,12 +17105,12 @@
(set_attr "mode" "TI")])
(define_insn "xop_vpermil2<mode>3"
[(set (match_operand:VF_128_256 0 "register_operand" "=x")
[(set (match_operand:VF_128_256 0 "register_operand" "=x,x")
(unspec:VF_128_256
[(match_operand:VF_128_256 1 "register_operand" "x")
(match_operand:VF_128_256 2 "nonimmediate_operand" "%x")
(match_operand:<sseintvecmode> 3 "nonimmediate_operand" "xm")
(match_operand:SI 4 "const_0_to_3_operand" "n")]
[(match_operand:VF_128_256 1 "register_operand" "x,x")
(match_operand:VF_128_256 2 "nonimmediate_operand" "x,m")
(match_operand:<sseintvecmode> 3 "nonimmediate_operand" "xm,x")
(match_operand:SI 4 "const_0_to_3_operand" "n,n")]
UNSPEC_VPERMIL2))]
"TARGET_XOP"
"vpermil2<ssemodesuffix>\t{%4, %3, %2, %1, %0|%0, %1, %2, %3, %4}"