From: Uros Bizjak <ubizjak@gmail.com>
To: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] [PR target/97194] [AVX2] Support variable index vec_set.
Date: Wed, 11 Nov 2020 09:45:16 +0100 [thread overview]
Message-ID: <CAFULd4ahGFL6eMMTsBVyWVNay7Z5O3cO5-dgr2haUSxGxTZxDQ@mail.gmail.com> (raw)
> gcc/ChangeLog:
>
> PR target/97194
> * config/i386/i386-expand.c (ix86_expand_vector_set_var): New function.
> * config/i386/i386-protos.h (ix86_expand_vector_set_var): New Decl.
> * config/i386/predicates.md (vec_setm_operand): New predicate,
> true for const_int_operand or register_operand under TARGET_AVX2.
> * config/i386/sse.md (vec_set<mode>): Support both constant
> and variable index vec_set.
>
> gcc/testsuite/ChangeLog:
>
> * gcc.target/i386/avx2-vec-set-1.c: New test.
> * gcc.target/i386/avx2-vec-set-2.c: New test.
> * gcc.target/i386/avx512bw-vec-set-1.c: New test.
> * gcc.target/i386/avx512bw-vec-set-2.c: New test.
> * gcc.target/i386/avx512f-vec-set-2.c: New test.
> * gcc.target/i386/avx512vl-vec-set-2.c: New test.
+;; True for registers, or const_int_operand, used to vec_setm expander.
+(define_predicate "vec_setm_operand"
+ (ior (and (match_operand 0 "register_operand")
+ (match_test "TARGET_AVX2"))
+ (match_code "const_int")))
+
;; True for registers, or 1 or -1. Used to optimize double-word shifts.
(define_predicate "reg_or_pm1_operand"
(ior (match_operand 0 "register_operand")
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index b153a87fb98..1798e5dea75 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -8098,11 +8098,14 @@ (define_insn "vec_setv2df_0"
(define_expand "vec_set<mode>"
[(match_operand:V 0 "register_operand")
(match_operand:<ssescalarmode> 1 "register_operand")
- (match_operand 2 "const_int_operand")]
+ (match_operand 2 "vec_setm_operand")]
You need to specify a mode, otherwise a register of any mode can pass here.
Uros.
next reply other threads:[~2020-11-11 8:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-11 8:45 Uros Bizjak [this message]
2020-11-12 2:06 ` Hongtao Liu
2020-11-12 8:20 ` Uros Bizjak
2020-11-12 9:12 ` Hongtao Liu
2020-11-12 9:15 ` Hongtao Liu
2020-11-12 9:25 ` Hongtao Liu
2020-11-12 13:59 ` Richard Biener
2020-11-12 17:51 ` Uros Bizjak
2020-11-12 18:26 ` Uros Bizjak
2020-11-12 18:34 ` Uros Bizjak
2020-11-16 11:57 ` Uros Bizjak
2020-11-19 10:54 ` Richard Sandiford
2020-11-16 10:16 ` Uros Bizjak
-- strict thread matches above, loose matches on Subject: below --
2020-10-19 8:23 Hongtao Liu
2020-10-19 9:07 ` Richard Biener
2020-10-19 9:39 ` Hongtao Liu
2020-10-19 9:55 ` Richard Biener
2020-10-20 2:37 ` Hongtao Liu
2020-10-20 7:36 ` Richard Biener
2020-10-27 7:51 ` Hongtao Liu
2020-11-11 8:03 ` Hongtao Liu
2020-11-25 19:15 ` Jeff Law
2020-11-26 1:45 ` Hongtao Liu
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