https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112465
john henning changed:
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101843
--- Comment #6 from john henning ---
Let's simplify.
Per Richard's comment #1, there won't be a code fix. OK.
As to a doc fix, Richard wrote:
"For release versions your milage may vary and we fail to document working
version pairs"
YES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101843
--- Comment #5 from john henning ---
Andrew suggests: Combined source builds are not for released sources
Respectfully, I suggest that the documentation disagrees.
Please see the binutils paragraph of the documentation of the released version
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101843
--- Comment #2 from john henning ---
If this is a doc bug, then two documentation comments
and one other thought.
(1) https://gcc.gnu.org/gcc-11/changes.html says that certain
functionality requires “Binutils version 2.36 or later”.
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: mailboxnotfound at yahoo dot com
Target Milestone: ---
SUMMARY
Building binutils along with GCC is a documented method,
but it fails for gcc-11.2.0 with
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84201
john henning changed:
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82004
--- Comment #47 from john henning ---
SPEC next step: Because the performance differences were small (in my limited
testing) no matter which workaround I picked (-O3, or remove Feedback Directed
Optimization, or add -fno-unsafe-math-optimizations
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82004
--- Comment #46 from john henning ---
Created attachment 49027
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49027&action=edit
More testing 7-aug-2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82004
--- Comment #45 from john henning ---
I had promised to do some more testing.
There were miscompares during the training run (thus causing the build to fail)
using
-Ofast -flto -fprofile-generate/-fprofile-use
on aarch64 with GCC 8.2,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82004
john henning changed:
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CC||mailboxnotfound at yahoo dot
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Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: mailboxnotfound at yahoo dot com
Target Milestone: ---
Created attachment 46426
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46426&action=edit
tarball, md
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
--- Comment #12 from john henning ---
Summary:
Eric's advice worked as prescribed.
Detail:
On a SPARC Solaris 11.4 system, with a /usr/bin/gcc
that by default produces 64-bit objects, this worked for
an 8.2.0 bootstrap build:
export CC=
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
--- Comment #11 from john henning ---
> There are 3 different switches: --build, --host and --target.
Hmm. I must be looking in the wrong place for documentation; are these
explained somewhere?
At https://gcc.gnu.org/install/configure.html I
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
--- Comment #9 from john henning ---
Eric, thank you for the explicit advice, although I note that both your
examples say '--build=something'.
Is that switch similar to or different from the switch '--target=something',
which http://gcc.gnu.or
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
--- Comment #5 from john henning ---
Thank you for the response.
I wonder if the configure or make process should defend against the possibility
that the host compiler and the compiler that we are building today have
differing defaults for -m3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
--- Comment #3 from john henning ---
Rainer points out that a key here seems to be that the host system compiler had
been configured with sparcv9-solaris2.11 but the 8.2.0 build did not request
the same. In my case, the host system compiler was
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
john henning changed:
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83201
john henning changed:
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CC||mailboxnotfound at yahoo dot
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