public inbox for libstdc++-cvs@sourceware.org
help / color / mirror / Atom feed
From: Jonathan Wakely <redi@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org
Subject: [gcc r12-5057] libstdc++: Do not use 64-bit DARN on 32-bit powerpc [PR103146]
Date: Tue,  9 Nov 2021 15:14:03 +0000 (GMT)	[thread overview]
Message-ID: <20211109151403.2E6753858C60@sourceware.org> (raw)

https://gcc.gnu.org/g:d9ebf0ce0845046cdd0cb40c598072bd1d91362c

commit r12-5057-gd9ebf0ce0845046cdd0cb40c598072bd1d91362c
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Nov 9 09:34:23 2021 +0000

    libstdc++: Do not use 64-bit DARN on 32-bit powerpc [PR103146]
    
    We need to use the 64-bit DARN to detect failure without bias, but it's
    not available in 32-bit mode.
    
    libstdc++-v3/ChangeLog:
    
            PR libstdc++/103146
            * src/c++11/random.cc: Check __powerpc64__ not __powerpc__.

Diff:
---
 libstdc++-v3/src/c++11/random.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/src/c++11/random.cc b/libstdc++-v3/src/c++11/random.cc
index 4a553e0d84f..76857e1efe5 100644
--- a/libstdc++-v3/src/c++11/random.cc
+++ b/libstdc++-v3/src/c++11/random.cc
@@ -37,7 +37,7 @@
 # ifdef _GLIBCXX_X86_RDSEED
 #  define USE_RDSEED 1
 # endif
-#elif defined __powerpc__ && defined __BUILTIN_CPU_SUPPORTS__
+#elif defined __powerpc64__ && defined __BUILTIN_CPU_SUPPORTS__
 # define USE_DARN 1
 #endif


                 reply	other threads:[~2021-11-09 15:14 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20211109151403.2E6753858C60@sourceware.org \
    --to=redi@gcc.gnu.org \
    --cc=gcc-cvs@gcc.gnu.org \
    --cc=libstdc++-cvs@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).