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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/98218] [TARGET_MMX_WITH_SSE] Implement 64bit vector compares (AVX512 masked compares missing)
Date: Wed, 12 May 2021 18:57:03 +0000 [thread overview]
Message-ID: <bug-98218-4-gKtVfAk79R@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-98218-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98218
--- Comment #13 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Uroš Bizjak from comment #12)
> Yeah, this is a non-existent SSE "cmove". I tried to find all paths where
> this should divert to a sequence of logic instructions or PBLENDB, but due
> to plethora of ISAs some cmove expansions fell through the cracks.
> Fortunately, easy to fix problem, please just provide a testcase.
A wild guess: you are compiling for TARGET_XOP?
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index d433c524652..7fc2e5d781c 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -1816,11 +1816,11 @@
;; XOP parallel XMM conditional moves
(define_insn "*xop_pcmov_<mode>"
- [(set (match_operand:MMXMODEI 0 "register_operand" "=x")
- (if_then_else:MMXMODEI
- (match_operand:MMXMODEI 3 "register_operand" "x")
- (match_operand:MMXMODEI 1 "register_operand" "x")
- (match_operand:MMXMODEI 2 "register_operand" "x")))]
+ [(set (match_operand:MMXMODE124 0 "register_operand" "=x")
+ (if_then_else:MMXMODE124
+ (match_operand:MMXMODE124 3 "register_operand" "x")
+ (match_operand:MMXMODE124 1 "register_operand" "x")
+ (match_operand:MMXMODE124 2 "register_operand" "x")))]
"TARGET_XOP && TARGET_MMX_WITH_SSE"
"vpcmov\t{%3, %2, %1, %0|%0, %1, %2, %3}"
[(set_attr "type" "sse4arg")])
next prev parent reply other threads:[~2021-05-12 18:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-10 1:56 [Bug target/98218] New: [TARGET_MMX_WITH_SSE] Miss vec_cmpmn/vcondmn expander for 64bit vector crazylht at gmail dot com
2020-12-10 7:34 ` [Bug target/98218] " rguenth at gcc dot gnu.org
2020-12-18 13:23 ` ubizjak at gmail dot com
2020-12-18 13:28 ` ubizjak at gmail dot com
2020-12-18 13:29 ` ubizjak at gmail dot com
2021-05-05 13:11 ` cvs-commit at gcc dot gnu.org
2021-05-05 13:28 ` ubizjak at gmail dot com
2021-05-07 15:15 ` cvs-commit at gcc dot gnu.org
2021-05-12 6:16 ` cvs-commit at gcc dot gnu.org
2021-05-12 6:24 ` [Bug target/98218] [TARGET_MMX_WITH_SSE] Implement 64bit vector compares (AVX512 masked compares missing) ubizjak at gmail dot com
2021-05-12 6:25 ` ubizjak at gmail dot com
2021-05-12 6:54 ` crazylht at gmail dot com
2021-05-12 17:39 ` dcb314 at hotmail dot com
2021-05-12 18:38 ` ubizjak at gmail dot com
2021-05-12 18:57 ` ubizjak at gmail dot com [this message]
2021-05-12 19:05 ` dcb314 at hotmail dot com
2021-05-12 19:47 ` dcb314 at hotmail dot com
2021-05-13 9:23 ` ubizjak at gmail dot com
2022-05-06 8:30 ` jakub at gcc dot gnu.org
2023-05-08 12:21 ` rguenth at gcc dot gnu.org
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