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Peter Maydell 514101c0b9 decodetree: Fix codegen for non-overlapping group inside overlapping group 
For nested groups like:

  {
    [
      pattern 1
      pattern 2
    ]
    pattern 3
  }

the intended behaviour is that patterns 1 and 2 must not
overlap with each other; if the insn matches neither then
we fall through to pattern 3 as the next thing in the
outer overlapping group.

Currently we generate incorrect code for this situation,
because in the code path for a failed match inside the
inner non-overlapping group we generate a "return" statement,
which causes decode to stop entirely rather than continuing
to the next thing in the outer group.

Generate a "break" instead, so that decode flow behaves
as required for this nested group case.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20201019151301.2046-2-peter.maydell@linaro.org
2020-10-20 16:12:01 +01:00
..
ci scripts/ci/gitlab-pipeline-status: wait for pipeline creation 2020-10-13 12:48:17 +02:00
coccinelle qom: fix objects with improper parent type 2020-10-12 11:50:22 -04:00
codeconverter scripts/codeconverter: Update to latest version 2020-09-18 14:12:32 -04:00
coverity-scan Remove texinfo dependency from docker and CI configs 2020-09-29 17:55:39 +02:00
kvm scripts/kvm/vmxcap: Use Python 3 interpreter and add pseudo-main() 2020-05-31 13:56:46 +02:00
modules scripts/modules/module_block: Use Python 3 interpreter & add pseudo-main 2020-05-31 13:56:46 +02:00
oss-fuzz scripts/: fix some comment spelling errors 2020-09-17 20:37:55 +02:00
performance scripts/performance: Add dissect.py script 2020-07-14 22:22:22 +02:00
qapi qapi/visit.py: add type hint annotations 2020-10-10 11:37:49 +02:00
qemu-guest-agent qemu-guest-agent: freeze-hook to ignore dpkg files as well 2018-08-23 18:46:25 +02:00
qemugdb scripts/qemugdb: Remove shebang header 2020-05-31 13:56:46 +02:00
qmp scripts/qmp/qom-fuse: Fix getattr(), read() for files in / 2020-09-03 09:44:33 +02:00
simplebench scripts/simplebench: compare write request performance 2020-09-18 14:00:32 -04:00
tracetool scripts/: fix some comment spelling errors 2020-09-17 20:37:55 +02:00
travis travis: add gcovr summary for GCOV build 2018-07-05 15:59:41 +01:00
analyse-9p-simpletrace.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
analyse-locks-simpletrace.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
analyze-inclusions Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
analyze-migration.py analyze-migration.py: fix read_migration_debug_json() return type 2020-09-18 14:00:32 -04:00
archive-source.sh build-sys: add meson submodule 2020-08-21 06:30:06 -04:00
block-coroutine-wrapper.py scripts: add block-coroutine-wrapper.py 2020-10-05 10:59:06 +01:00
check_sparse.py meson: move sparse detection to Meson and rewrite check_sparse.py 2020-10-04 18:36:23 +02:00
checkpatch.pl checkpatch: Detect '%#' or '%0#' in printf-style format strings 2020-09-30 19:11:36 +02:00
clean-header-guards.pl scripts/: fix some comment spelling errors 2020-09-17 20:37:55 +02:00
clean-includes meson: rename included C source files to .c.inc 2020-08-21 06:18:30 -04:00
cleanup-trace-events.pl scripts/cleanup-trace-events: Emit files in alphabetical order 2020-09-09 17:17:00 +01:00
cocci-macro-file.h QEMU_PACKED: Remove gcc_struct attribute in Windows non x86 targets 2019-05-07 12:55:02 +01:00
coverity-model.c coverity-model: Fix replay_get_byte() 2018-07-05 15:09:52 +02:00
decodetree.py decodetree: Fix codegen for non-overlapping group inside overlapping group 2020-10-20 16:12:01 +01:00
device-crash-test meson: link emulators without Makefile.target 2020-08-21 06:30:40 -04:00
disas-objdump.pl scripts: Switch to more portable Perl shebang 2017-05-10 10:19:24 +03:00
dump-guest-memory.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
extract-vsssdk-headers Add a script to extract VSS SDK headers on POSIX system 2013-09-09 14:17:56 -05:00
feature_to_c.sh meson: cpu-emu 2020-08-21 06:30:39 -04:00
fix-multiline-comments.sh scripts: add script to convert multiline comments into 4-line format 2019-01-11 15:46:55 +01:00
gensyscalls.sh scripts: add a script to generate syscall_nr.h 2020-03-20 16:02:00 +01:00
get_maintainer.pl softmmu: move vl.c to softmmu/ 2020-02-22 08:26:47 +00:00
git-submodule.sh git: Make submodule check only needed modules 2020-02-13 11:31:58 +01:00
git.orderfile Remove Texinfo related line from git.orderfile 2020-09-29 17:55:39 +02:00
hxtool meson: generate hxtool files 2020-08-21 06:30:14 -04:00
hxtool-conv.pl scripts/hxtool-conv: Archive script used in qemu-options.hx conversion 2020-03-06 10:05:24 +00:00
kernel-doc kernel-doc: Remove $decl_type='type name' hack 2020-10-06 11:09:35 -04:00
make-release make-release: pull in edk2 submodules so we can build it from tarballs 2019-10-07 14:54:45 +02:00
meson.build meson: install scripts/qemu-trace-stap 2020-09-01 01:51:52 -04:00
minikconf.py meson: infrastructure for building emulators 2020-08-21 06:30:17 -04:00
mtest2make.py build: replace ninjatool with ninja 2020-10-17 10:45:51 -04:00
nsis.py meson: add NSIS building 2020-09-01 08:51:34 -04:00
qapi-gen.py qapi: move generator entrypoint into package 2020-10-10 11:37:47 +02:00
qemu-binfmt-conf.sh scripts/qemu-binfmt-conf: Update for sparc64 2019-11-06 13:28:27 +01:00
qemu-gdb.py scripts/qemu-gdb: Use Python 3 interpreter 2020-05-31 13:56:46 +02:00
qemu-trace-stap trace: update qemu-trace-stap to Python 3 2020-01-13 16:42:20 +00:00
qemu-version.sh build-sys: fix git version from -version 2020-10-12 11:50:23 -04:00
refresh-pxe-roms.sh roms: rewrite scripts/refresh-pxe-roms.sh 2013-09-30 09:44:35 +02:00
render_block_graph.py python/qmp.py: re-absorb MonitorResponseError 2020-07-14 22:22:22 +02:00
replay-dump.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
shaderinclude.pl scripts: Switch to more portable Perl shebang 2017-05-10 10:19:24 +03:00
show-fixed-bugs.sh show-fixed-bugs.sh: Modern shell scripting (use $() instead of ``) 2018-10-16 18:34:19 +02:00
signrom.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
simpletrace.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
switch-timer-api scripts: Switch to more portable Perl shebang 2017-05-10 10:19:24 +03:00
tap-driver.pl scripts: improve message when TAP based tests fail 2020-07-10 19:26:55 -04:00
tap-merge.pl tap: flush STDOUT on newline 2019-02-05 16:50:16 +01:00
test-driver.py mtest2make: hide output of successful tests 2020-09-08 07:17:09 +02:00
tracetool.py libqemuutil, qapi, trace: convert to meson 2020-08-21 06:30:08 -04:00
u2f-setup-gen.py scripts: Add u2f-setup-gen script 2020-08-31 08:23:39 +02:00
undefsym.py meson: Convert undefsym.sh to undefsym.py 2020-09-08 11:43:16 +02:00
update-linux-headers.sh virtiofsd: Pull in kernel's fuse.h 2020-01-23 16:41:36 +00:00
update-mips-syscall-args.sh linux-user,mips: update syscall-args-o32.c.inc 2020-03-20 16:02:00 +01:00
update-syscalltbl.sh linux-user, scripts: add a script to update syscall.tbl 2020-03-20 16:02:00 +01:00
vmstate-static-checker.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00