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Richard Henderson 72d8af5282 tcg: Remove CONFIG_VECTOR16 
The comment in tcg-runtime-gvec.c about CONFIG_VECTOR16 says that
tcg-op-gvec.c has eliminated size 8 vectors, and only passes on
multiples of 16. This may have been true of the first few operations,
but is not true of all operations.

In particular, multiply, shift by scalar, and compare of 8- and 16-bit
elements are not expanded inline if host vector operations are not
supported.

For an x86_64 host that does not support AVX, this means that we will
fall back to the helper, which will attempt to use SSE instructions,
which will SEGV on an invalid 8-byte aligned memory operation.

This patch simply removes the CONFIG_VECTOR16 code and configuration
without further simplification.

Buglink: https://bugs.launchpad.net/bugs/1863508

Backports commit 43d1ccd2a02fadf3c36b46a8c31125a28864d141 from qemu
2020-04-30 06:28:46 -04:00
..
accel tcg: Remove CONFIG_VECTOR16 2020-04-30 06:28:46 -04:00
crypto
default-configs target/riscv: Initial introduction of the RISC-V target 2019-03-08 21:46:10 -05:00
docs docs/devel/memory.txt: Document _with_attrs accessors 2018-10-04 04:46:26 -04:00
fpu fpu: rename softfloat-specialize.h -> .inc.c 2019-11-18 21:12:30 -05:00
hw Expose different 32-bit ARM CPU models to users via UC_MODE flags (#1165) 2020-01-14 09:37:21 -05:00
include tcg: Add support for a helper with 7 arguments 2020-03-21 16:53:56 -04:00
qapi qapi: Rewrite string-input-visitor's integer and list parsing 2018-12-18 04:57:25 -05:00
qobject qstring: Move qstring_from_substr()'s @end one to the right 2018-08-02 21:24:19 -04:00
qom cpu: Move icount_decr to CPUNegativeOffsetState 2019-06-13 15:34:28 -04:00
scripts decodetree: Suppress redundant declaration warnings 2019-11-18 21:21:30 -05:00
target target/arm: don't bother with id_aa64pfr0_read for USER_ONLY 2020-04-30 06:24:10 -04:00
tcg tcg/i386: Bound shift count expanding sari_vec 2020-04-30 06:26:42 -04:00
util util/cutils: Turn FIXME comment into QEMU_BUILD_BUG_ON() 2020-01-14 08:04:30 -05:00
aarch64.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
aarch64eb.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
armeb.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
CODING_STYLE.rst docs: split the CODING_STYLE doc into distinct groups 2019-11-28 02:54:44 -05:00
configure tcg: Remove CONFIG_VECTOR16 2020-04-30 06:28:46 -04:00
COPYING
COPYING.LIB
cpus.c Include qapi/error.h exactly where needed 2018-03-07 12:26:38 -05:00
exec.c Memory: Enable writeback for given memory region 2020-01-14 07:44:24 -05:00
gen_all_header.sh
glib_compat.c target/arm: Add VHE system register redirection and aliasing 2020-03-21 15:57:03 -04:00
header_gen.py header_gen: Add gen_{u,s}shl_i{32,64} to arm 2020-04-13 19:38:59 +01:00
ioport.c
LICENSE
m68k.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
Makefile Makefile: Rename targets for make recursion 2019-08-08 17:26:49 -04:00
Makefile.objs qapi: Move qapi-schema.json to qapi/, rename generated files 2018-03-09 11:35:11 -05:00
Makefile.target configure: Remove old -fno-gcse workaround for GCC 4.6.x and 4.7.[012] 2018-12-18 03:52:36 -05:00
memory.c Memory: Enable writeback for given memory region 2020-01-14 07:44:24 -05:00
memory_ldst.inc.c memory: Single byte swap along the I/O path 2020-01-07 19:12:04 -05:00
memory_mapping.c
mips.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
mips64.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
mips64el.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
mipsel.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
powerpc.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
qemu-timer.c timer/cpus: fix some typos and update some comments 2018-02-25 23:21:57 -05:00
riscv32.h target/riscv: Emulate TIME CSRs for privileged mode 2020-03-22 02:22:17 -04:00
riscv64.h target/riscv: Emulate TIME CSRs for privileged mode 2020-03-22 02:22:17 -04:00
rules.mak build-sys: silence make by default or V=0 2018-03-06 08:58:03 -05:00
sparc.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
sparc64.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00
unicorn_common.h unicorn_common: Fix unicorn memory functions failing 2018-09-03 10:40:14 -04:00
VERSION Open 5.0 development tree 2020-01-07 17:50:51 -05:00
vl.c Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-20 14:20:30 -04:00
vl.h
x86_64.h target/arm: Convert PMULL.8 to gvec 2020-03-21 19:35:46 -04:00