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From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/102059] Incorrect always_inline diagnostic in LTO mode with #pragma GCC target("cpu=power10")
Date: Thu, 26 Aug 2021 06:26:17 +0000	[thread overview]
Message-ID: <bug-102059-4-8Ntb5XanE9@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-102059-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102059

--- Comment #9 from Kewen Lin <linkw at gcc dot gnu.org> ---
One more reduced test case:

fail cmd: gcc -c -O2 -flto -mcpu=power8
pass cmd: gcc -c -O2 -flto -mcpu=power8 -mno-htm -mno-power8-fusion

----------------------
__attribute__((always_inline)) int foo(int *b) {
  *b += 10;
  return *b;
}

#pragma GCC target "cpu=power10"
int bar(int* a){
  *a = foo(a);
  return 0;
}

----------------------

I confirm the mismatch subset on HTM is expected, ISA 3.1 has removed the
transnational memory support.  As to OPTION_MASK_P8_FUSION, it's reasonable to
exclude it from ISA3.0 (power9), but I'm not sure if it's not a subset of
Power10 new fusion, from the current implementation it isn't.

Hi @Mike, could you help to confirm this?

  parent reply	other threads:[~2021-08-26  6:26 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-25  9:42 [Bug lto/102059] New: " fw at gcc dot gnu.org
2021-08-25  9:49 ` [Bug ipa/102059] " rguenth at gcc dot gnu.org
2021-08-25  9:54 ` marxin at gcc dot gnu.org
2021-08-25 11:49 ` chip.kerchner at ibm dot com
2021-08-25 13:25 ` marxin at gcc dot gnu.org
2021-08-25 13:30 ` marxin at gcc dot gnu.org
2021-08-25 13:34 ` marxin at gcc dot gnu.org
2021-08-25 13:44 ` marxin at gcc dot gnu.org
2021-08-25 15:34 ` linkw at gcc dot gnu.org
2021-08-26  6:26 ` linkw at gcc dot gnu.org [this message]
2021-08-26  8:20 ` rguenth at gcc dot gnu.org
2021-08-26  8:24 ` rguenth at gcc dot gnu.org
2021-08-26  8:34 ` fw at gcc dot gnu.org
2021-08-26  8:45 ` linkw at gcc dot gnu.org
2021-08-26  8:56 ` linkw at gcc dot gnu.org
2021-08-26  9:02 ` linkw at gcc dot gnu.org
2021-08-26  9:04 ` marxin at gcc dot gnu.org
2021-08-26  9:29 ` linkw at gcc dot gnu.org
2021-08-26  9:34 ` linkw at gcc dot gnu.org
2021-08-26 18:46 ` meissner at gcc dot gnu.org
2021-09-01  7:10 ` linkw at gcc dot gnu.org
2021-09-14 14:09 ` chip.kerchner at ibm dot com
2021-09-14 14:11 ` chip.kerchner at ibm dot com
2021-09-15  9:57 ` linkw at gcc dot gnu.org
2021-09-15 12:19 ` chip.kerchner at ibm dot com
2021-11-26  2:07 ` linkw at gcc dot gnu.org
2022-01-05  3:26 ` cvs-commit at gcc dot gnu.org
2022-02-04 18:55 ` pc at gcc dot gnu.org
2022-02-04 19:33 ` dan at danny dot cz
2022-02-04 20:15 ` bergner at gcc dot gnu.org
2022-02-05  2:50 ` linkw at gcc dot gnu.org
2022-02-08 21:53 ` meissner at gcc dot gnu.org
2022-02-09  2:33 ` linkw at gcc dot gnu.org
2022-02-09  3:20 ` linkw at gcc dot gnu.org
2022-02-09  7:21 ` rguenth at gcc dot gnu.org
2022-02-09  7:35 ` linkw at gcc dot gnu.org
2022-03-15  6:38 ` linkw at gcc dot gnu.org
2022-05-05 18:14 ` bergner at gcc dot gnu.org
2022-05-06 16:41 ` cvs-commit at gcc dot gnu.org
2022-05-06 19:03 ` cvs-commit at gcc dot gnu.org
2022-05-06 21:45 ` cvs-commit at gcc dot gnu.org
2022-05-19 21:20 ` cvs-commit at gcc dot gnu.org
2022-05-19 21:25 ` bergner at gcc dot gnu.org

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