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[Bug target/70421] New: [5/6 Regression] wrong code with v16si vector and useless cast at -O -mavx512f
- From: "zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 27 Mar 2016 08:36:07 +0000
- Subject: [Bug target/70421] New: [5/6 Regression] wrong code with v16si vector and useless cast at -O -mavx512f
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70421
Bug ID: 70421
Summary: [5/6 Regression] wrong code with v16si vector and
useless cast at -O -mavx512f
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Target: x86_64-pc-linux-gnu
Created attachment 38106
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38106&action=edit
reduced testcase
Output: (using emulation)
$ x86_64-pc-linux-gnu-gcc -O -mavx512f testcase.c
$ sde64 -- ./a.out
00001010
Aborted
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-234469-checking-yes-rtl-df-nographite/bin/../libexec/gcc/x86_64-pc-linux-gnu/6.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-checking=yes,rtl,df --without-cloog --without-ppl --without-isl
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-234469-checking-yes-rtl-df-nographite
Thread model: posix
gcc version 6.0.0 20160324 (experimental) (GCC)
Tested revisions:
trunk r234469 - FAIL
5-branch r234412 - FAIL
4_9-branch r234243 - OK