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Aurelien Jarno c19f47bf5e tcg: fix dead computation for repeated input arguments
When the same temp is used twice or more as an input argument to a TCG
instruction, the dead computation code doesn't recognize the second use
as a dead temp. This is because the temp is marked as live in the same
loop where dead inputs are checked.

The fix is to split the loop in two parts. This avoid emitting a move
and using a register for the movcond instruction when used as "move if
true" on x86-64. This might bring more improvements on RISC TCG targets
which don't have outputs aliased to inputs.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <1433447228-29425-3-git-send-email-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-06-09 06:42:27 -07:00
audio
backends Extend TPM TIS interface to support TPM 2 2015-05-31 20:29:02 +02:00
block blkdebug: Simplify passing of Error through qemu_opts_foreach() 2015-06-09 07:40:23 +02:00
bsd-user target-i386: use memory API to implement SMRAM 2015-06-05 17:36:39 +02:00
default-configs ACPI: split CONFIG_ACPI into 4 pieces 2015-05-29 11:28:59 +01:00
disas
docs pc, acpi, virtio, tpm 2015-06-04 18:33:24 +01:00
dtc@65cc4d2748 dtc: Update dtc / libfdt submodule to version 1.4.0 2015-06-03 23:56:49 +02:00
fpu target-s390x: define default NaN values 2015-06-05 01:37:58 +02:00
fsdev
gdb-xml gdb-xml: Include XML for s390 vector registers 2015-05-27 17:52:03 +02:00
hw s390x/virtio-ccw: migration and virtio for 2.4 2015-06-09 11:07:41 +01:00
include QemuOpts: Convert qemu_opt_foreach() to Error 2015-06-09 07:40:23 +02:00
libcacard libcacard: do not use full paths for include files in the same dir 2015-04-30 16:05:48 +03:00
libdecnumber
linux-headers update Linux headers from kvm/next 2015-06-05 19:45:13 +02:00
linux-user target-i386: use memory API to implement SMRAM 2015-06-05 17:36:39 +02:00
migration migration: Add qmp commands to set and query parameters 2015-05-07 18:31:53 +02:00
net vhost-user: Improve -netdev/netdev_add/-net/... error reporting 2015-06-09 07:40:24 +02:00
pc-bios Makefile.target: set icon for binary file on Mac OS X 2015-05-19 09:11:17 +01:00
pixman@87eea99e44
po
qapi qapi: add dirty bitmap status 2015-05-29 12:53:12 +02:00
qga qapi: Use 'struct' instead of 'type' in schema 2015-05-05 18:39:01 +02:00
qobject json-parser: Accept 'null' in QMP 2015-05-11 08:59:07 -04:00
qom qom: add object_property_add_const_link 2015-06-05 17:36:39 +02:00
roms pseries: Update SLOF firmware image to qemu-slof-20150313 2015-03-25 22:49:45 +01:00
scripts virtio-input: add linux/input.h 2015-05-29 10:30:06 +02:00
slirp
stubs monitor: Change return type of monitor_cur_is_qmp() to bool 2015-06-02 10:07:16 +02:00
target-alpha Revert "target-alpha: Add vector implementation for CMPBGE" 2015-05-22 12:30:13 +01:00
target-arm target-arm: Remove v8_ prefix from names of non-v8-specific cpreg arrays 2015-06-02 15:32:43 +01:00
target-cris
target-i386 target-i386: use memory API to implement SMRAM 2015-06-05 17:36:39 +02:00
target-lm32
target-m68k
target-microblaze microblaze: cpu: Delete MMAP_SHIFT definition 2015-06-03 14:21:23 +03:00
target-mips kvm: introduce kvm_arch_msi_data_to_gsi 2015-06-02 14:56:25 +01:00
target-moxie
target-openrisc openrisc: cpu: Remove unused cpu_get_pc 2015-04-30 16:06:18 +03:00
target-ppc Patch queue for ppc - 2015-06-03 2015-06-04 14:04:14 +01:00
target-s390x s390x/virtio-ccw: migration and virtio for 2.4 2015-06-09 11:07:41 +01:00
target-sh4
target-sparc
target-tricore target-tricore: fix BOL_ST_H_LONGOFF using ld 2015-05-30 16:49:19 +02:00
target-unicore32
target-xtensa
tcg tcg: fix dead computation for repeated input arguments 2015-06-09 06:42:27 -07:00
tests * KVM error improvement from Laurent 2015-06-08 15:57:41 +01:00
trace
ui QemuOpts: Convert qemu_opt_foreach() to Error 2015-06-09 07:40:23 +02:00
util QemuOpts: Convert qemu_opt_foreach() to Error 2015-06-09 07:40:23 +02:00
.exrc
.gitignore gitignore: Ignore more .pod files. 2015-04-04 09:45:59 +03:00
.gitmodules
.mailmap
.travis.yml
accel.c
aio-posix.c AioContext: acquire/release AioContext during aio_poll 2015-04-28 15:36:08 +02:00
aio-win32.c AioContext: acquire/release AioContext during aio_poll 2015-04-28 15:36:08 +02:00
arch_init.c migration: move dirty bitmap sync to ram_addr.h 2015-06-05 17:10:00 +02:00
async.c iothread: release iothread around aio_poll 2015-04-28 15:36:08 +02:00
balloon.c balloon: improve error msg when adding second device 2015-04-24 14:18:05 -04:00
block.c qapi: add dirty bitmap status 2015-05-29 12:53:12 +02:00
blockdev-nbd.c nbd: Fix up comment after commit e140177 2015-03-25 13:38:07 +01:00
blockdev.c monitor: Use traditional command interface for HMP drive_del 2015-06-02 09:59:13 +02:00
blockjob.c blockjob: Allow nested pause 2015-04-28 15:36:09 +02:00
bootdevice.c misc: fix typos in copyright declaration 2015-03-26 14:21:43 +01:00
bt-host.c
bt-vhci.c
Changelog
CODING_STYLE
configure Patch queue for ppc - 2015-06-03 2015-06-04 14:04:14 +01:00
COPYING
COPYING.LIB
coroutine-gthread.c
coroutine-sigaltstack.c
coroutine-ucontext.c
coroutine-win32.c
cpu-exec.c
cpus.c icount: print a warning if there is no more deadline in sleep=no mode 2015-06-05 17:10:00 +02:00
cputlb.c memory: replace cpu_physical_memory_reset_dirty() with test-and-clear 2015-06-05 17:10:00 +02:00
device_tree.c device-tree: Make a common-obj 2015-06-03 14:21:24 +03:00
device-hotplug.c
disas.c
dma-helpers.c range: remove useless inclusions 2015-04-30 16:05:48 +03:00
dump.c
exec.c memory: replace cpu_physical_memory_reset_dirty() with test-and-clear 2015-06-05 17:10:00 +02:00
gdbstub.c Revert "gdbstub: Do not kill target in system emulation mode" 2015-05-28 16:57:35 +01:00
HACKING
hmp-commands.hx monitor: Use trad. command interface for HMP pcie_aer_inject_error 2015-06-02 09:59:13 +02:00
hmp.c monitor: Use traditional command interface for HMP device_add 2015-06-02 09:59:13 +02:00
hmp.h monitor: Use traditional command interface for HMP device_add 2015-06-02 09:59:13 +02:00
iohandler.c
ioport.c - miscellaneous cleanups for TCG (Emilio) and NBD (Bogdan) 2015-04-30 12:04:11 +01:00
iothread.c Remove various unused functions 2015-05-08 14:11:10 +03:00
kvm-all.c kvm: remove special handling of DIRTY_MEMORY_MIGRATION in the dirty log mask 2015-06-05 17:09:59 +02:00
kvm-stub.c
LICENSE
main-loop.c
MAINTAINERS Add David Gibson for sPAPR in MAINTAINERS file 2015-06-03 23:56:55 +02:00
Makefile arch_init: Drop target-x86_64.conf 2015-06-02 15:15:52 -03:00
Makefile.objs device-tree: Make a common-obj 2015-06-03 14:21:24 +03:00
Makefile.target Makefile.target: set master BUILD_DIR 2015-06-05 17:09:58 +02:00
memory_mapping.c
memory.c memory: use mr->ram_addr in "is this RAM?" assertions 2015-06-05 17:10:00 +02:00
module-common.c
monitor.c monitor: Fix QMP ABI breakage around "id" 2015-06-08 12:12:11 +01:00
nbd.c qemu-nbd: only send a limited number of errno codes on the wire 2015-05-08 14:45:11 +02:00
numa.c QemuOpts: Convert qemu_opts_foreach() to Error 2015-06-09 07:37:37 +02:00
os-posix.c rcu: do not create thread in pthread_atfork callback 2015-04-01 10:06:38 +02:00
os-win32.c
page_cache.c
qapi-schema.json monitor: Convert client_migrate_info to QAPI 2015-06-02 09:59:13 +02:00
qdev-monitor.c QemuOpts: Convert qemu_opt_foreach() to Error 2015-06-09 07:40:23 +02:00
qdict-test-data.txt
qemu-bridge-helper.c
qemu-char.c qemu-char: remove unused list node from FDCharDriver 2015-04-30 16:05:49 +03:00
qemu-coroutine-io.c
qemu-coroutine-lock.c coroutine: remove unnecessary parentheses in qemu_co_queue_empty 2015-04-30 16:05:49 +03:00
qemu-coroutine-sleep.c
qemu-coroutine.c
qemu-doc.texi
qemu-img-cmds.hx
qemu-img.c util: move read_password method out of qemu-img into osdep/oslib 2015-05-22 17:08:01 +02:00
qemu-img.texi
qemu-io-cmds.c qemu-io: Use getopt() correctly 2015-05-22 17:08:01 +02:00
qemu-io.c qemu-io: prompt for encryption keys when required 2015-05-22 17:08:01 +02:00
qemu-log.c
qemu-nbd.c qemu-nbd: Switch to qemu_set_fd_handler 2015-06-05 17:09:58 +02:00
qemu-nbd.texi
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx * KVM error improvement from Laurent 2015-06-08 15:57:41 +01:00
qemu-seccomp.c
qemu-tech.texi
qemu-timer.c
qemu.nsi
qemu.sasl
qjson.c QJSON: Use OBJECT_CHECK 2015-05-11 08:59:07 -04:00
qmp-commands.hx monitor: Convert client_migrate_info to QAPI 2015-06-02 09:59:13 +02:00
qmp.c qapi: Drop inline nested struct in query-version 2015-05-05 18:39:02 +02:00
qtest.c qtest: pre-buffer hex nibs 2015-05-22 15:58:22 -04:00
README
rules.mak rules.mak: Force CFLAGS for all objects in DSO 2015-05-08 14:45:11 +02:00
savevm.c
softmmu_template.h tcg: Add MO_ALIGN, MO_UNALN 2015-05-14 12:15:18 -07:00
spice-qemu-char.c spice: fix spice_chr_add_watch() pre-condition 2015-05-29 09:56:01 +02:00
tcg-runtime.c
tci.c tcg: Mask TCGMemOp appropriately for indexing 2015-06-09 06:35:29 -07:00
thread-pool.c thread-pool: clean up thread_pool_completion_bh() 2015-04-28 15:36:09 +02:00
thunk.c
tpm.c QemuOpts: Convert qemu_opts_foreach() to Error 2015-06-09 07:37:37 +02:00
trace-events spapr_iommu: Add separate trace points for PCI DMA operations 2015-06-03 23:56:51 +02:00
translate-all.c translate-all: make less of tb_invalidate_phys_page_range depend on is_cpu_write_access 2015-06-05 17:09:59 +02:00
translate-all.h translate-all: remove unnecessary argument to tb_invalidate_phys_range 2015-06-05 17:09:59 +02:00
user-exec.c exec: move functions to translate-all.h 2015-06-05 17:09:59 +02:00
VERSION Open 2.4 development tree 2015-04-25 22:05:07 +01:00
version.rc
vl.c QemuOpts: Convert qemu_opt_foreach() to Error 2015-06-09 07:40:23 +02:00
xen-common-stub.c
xen-common.c
xen-hvm-stub.c
xen-hvm.c memory: prepare for multiple bits in the dirty log mask 2015-06-05 17:09:59 +02:00
xen-mapcache.c

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team