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From: "guihaoc at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/110429] New: Redundant vector extract instruction on P9 Date: Tue, 27 Jun 2023 09:12:14 +0000 [thread overview] Message-ID: <bug-110429-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110429 Bug ID: 110429 Summary: Redundant vector extract instruction on P9 Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: guihaoc at gcc dot gnu.org Target Milestone: --- //test.c #include <altivec.h> void extract_int_2 (int *p, vector int a) { *p = vec_extract (a, 2); } On P9 LE, it generates xxextractuw 34,34,4 stxsiwx 34,0,3 The xxextractuw is unnecessary as the extracted int is just at word[1].
next reply other threads:[~2023-06-27 9:12 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-06-27 9:12 guihaoc at gcc dot gnu.org [this message] 2023-08-16 6:55 ` [Bug target/110429] " cvs-commit at gcc dot gnu.org 2023-08-17 5:26 ` guihaoc at gcc dot gnu.org
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