https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70728
Bug ID: 70728
Summary: GCC trunk emits invalid assembly for knl target
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: anton.mitrokhin at phystech dot edu
Target Milestone: ---
Created attachment 38308
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38308&action=edit
Reproducer
Reproducer:
> g++ -std=c++11 -Ofast -march=knl -o out small.cpp
> sde –knl -- out
Output:
TID 0 SDE-ERROR: Executed instruction not valid for specified chip (KNL):
0x40084b: vpslld xmm8, xmm8, xmm16
Image: /export/users/amitrokh/forCreduce/untracked/knl_vpslld/out+0x84b (in
multi-region image, region# 0)
Function: _Z3fn1v
Instruction bytes are: 62 31 3d 08 f2 c0
> gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/export/users/amitrokh/gcc_trunk/bin/../libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /export/users/gnutester/stability/svn/trunk/configure
--with-arch=corei7 --with-cpu=corei7 --enable-clocale=gnu --with-system-zlib
--enable-shared --with-demangler-in-ld --enable-cloog-backend=isl
--with-fpmath=sse --with-pkgversion=Revision=235172/svn-rev:235172/
--prefix=/export/users/gnutester/stability/work/trunk/64/install
--enable-languages=c,c++,fortran,java,lto
Thread model: posix
gcc version 7.0.0 20160418 (experimental) (Revision=235172/svn-rev:235172/)
