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rs6000: Don't write "nor" as (not (ior () ())) (PR80618) 

The canonical RTL for "nor" is (and (not ()) (not ())), and that is
indeed what we use in boolccv2df3_internal1.  So, the splitter for
*vector_uneq<mode> should use that form, not (not (ior () ())), which
does not match any pattern.


	PR target/80618
	* config/rs6000/rs6000.md (*vector_uneq<mode>): Write the nor in the
	splitter result in the canonical way.

From-SVN: r248763
This commit is contained in:
Segher Boessenkool 2017-05-31 22:58:59 +02:00 committed by Segher Boessenkool
parent 49fe486726
commit ba0ece3922
2 changed files with 9 additions and 4 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2017-05-31 Segher Boessenkool <segher@kernel.crashing.org>
PR target/80618
* config/rs6000/rs6000.md (*vector_uneq<mode>): Write the nor in the
splitter result in the canonical way.
2017-05-31 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.md (*zero_extendsidi2): Enable alternative (?r, *Yj)

7
gcc/config/rs6000/vector.md
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@ -582,13 +582,12 @@
(gt:VEC_F (match_dup 2)
(match_dup 1)))
(set (match_dup 0)
(not:VEC_F (ior:VEC_F (match_dup 3)
(match_dup 4))))]
"
(and:VEC_F (not:VEC_F (match_dup 3))
(not:VEC_F (match_dup 4))))]
{
operands[3] = gen_reg_rtx (<MODE>mode);
operands[4] = gen_reg_rtx (<MODE>mode);
}")
})
(define_insn_and_split "*vector_ltgt<mode>"
[(set (match_operand:VEC_F 0 "vfloat_operand" "")