[Bug 1334919] Comment bridged from LTC Bugzilla
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Thu Oct 9 11:09:31 UTC 2014
------- Comment From thierry.fauck at fr.ibm.com 2014-10-09 11:05 EDT-------
I retrieved the testsuite from : wget http://ftp.gnu.org/gnu/gcc/gcc-4.9.1/gcc-4.9.1.tar.bz2
Checked the test case:
gcc/testsuite/gcc.dg/vect$ make vect-nop-move
cc vect-nop-move.c -o vect-nop-move
gcc/testsuite/gcc.dg/vect$ ./vect-nop-move
gcc/testsuite/gcc.dg/vect$ echo $?
0
$ dpkg -l |grep gcc
ii gcc 4:4.9.1-4ubuntu2 ppc64el GNU C compiler
ii gcc-4.9 4.9.1-16ubuntu4 ppc64el GNU C compiler
ii gcc-4.9-base:ppc64el 4.9.1-16ubuntu4 ppc64el GCC, the GNU Compiler Collection (base package)
ii gccgo 4:4.9.1-4ubuntu2 ppc64el Go compiler, based on the GCC backend
ii gccgo-4.9 4.9.1-16ubuntu4 ppc64el GNU Go compiler
ii libgcc-4.9-dev:ppc64el 4.9.1-16ubuntu4 ppc64el GCC support library (development files)
ii libgcc1:ppc64el 1:4.9.1-16ubuntu4 ppc64el GCC support library
$ uname -a
Linux fauck4 3.16.0-20-generic #27-Ubuntu SMP Wed Oct 1 17:24:38 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux
Can you verify or confirm it is fixed
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https://bugs.launchpad.net/bugs/1334919
Title:
gcc48, gcc49: vect-nop-move.c fails on powerpc64le-unknown-linux-gnu
(FSF PR 61542)
Status in “gcc-4.8-ppc64el-cross” package in Ubuntu:
New
Bug description:
---Problem Description---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61542 describes a problem with the vec_extract operation on a V4SFmode vector on powerpc64le-linux-gnu:
"A test case (gcc.dg/vect/vect-nop-move.c) was added in 4.9 that
exposes a bug on PowerPC little endian for extracting an element from
a V4SF value. When attempting to extract element N, element 3 - N is
extracted instead when N <> 3."
This problem has been fixed upstream in GCC 4.8 (r212050), 4.9 (r212048), and trunk (r212047). The fix should be picked up for 14.04.1 and 14.10, please.
Machine Type = Power8
---Steps to Reproduce---
Compile the test case associated with the bug report.
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