Commit graph

2843 commits

Author SHA1 Message Date
Philippe Mathieu-Daudé 7893e42d5d tcg: Correct invalid mentions of 'softmmu' by 'system-mode'
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004090629.37473-6-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-10-07 19:02:33 +02:00
gaosong 79de3960ae tcg/loongarch64: Fix buid error
Fix:

  In file included from ../tcg/tcg.c:735:
  /home1/gaosong/bugfix/qemu/tcg/loongarch64/tcg-target.c.inc: In function ‘tcg_out_vec_op’:
  /home1/gaosong/bugfix/qemu/tcg/loongarch64/tcg-target.c.inc:1855:9: error: a label can only be part of a statement and a declaration is not a statement
           TCGCond cond = args[3];
           ^~~~~~~

Signed-off-by: gaosong <gaosong@loongson.cn>
Message-Id: <20230926075819.3602537-1-gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-04 11:03:54 -07:00
Richard Henderson d7ec12f83c tcg: Split out tcg init functions to tcg/startup.h
The tcg/tcg.h header is a big bucket, containing stuff related to
the translators and the JIT backend.  The places that initialize
tcg or create new threads do not need all of that, so split out
these three functions to a new header.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-04 11:03:54 -07:00
Richard Henderson 935f75ae63 tcg: Remove argument to tcg_prologue_init
We can load tcg_ctx just as easily within the callee.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-04 11:03:54 -07:00
Anton Johansson 623912cc14 accel/tcg: Remove env_tlb()
The function is no longer used to access the TLB,
and has been replaced by cpu->neg.tlb.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230912153428.17816-9-anjo@rev.ng>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[rth: Merge comment update patch]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-04 11:03:54 -07:00
Richard Henderson 7857ee114c tcg: Remove TCGContext.tlb_fast_offset
Now that there is no padding between CPUNegativeOffsetState
and CPUArchState, this value is constant across all targets.

Reviewed-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-04 11:03:54 -07:00
Richard Henderson ad75a51e84 tcg: Rename cpu_env to tcg_env
Allow the name 'cpu_env' to be used for something else.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-03 08:01:02 -07:00
Stefan Hajnoczi da1034094d * fix from optionrom build
* fix for KVM on Apple M2
 * introduce machine property "audiodev"
 * ui/vnc: Require audiodev= to enable audio
 * audio: remove QEMU_AUDIO_* and -audio-help support
 * audio: forbid using default audiodev backend with -audiodev and -nodefaults
 * remove compatibility code for old machine types
 * make-release: do not ship dtc sources
 * build system cleanups
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* fix from optionrom build
* fix for KVM on Apple M2
* introduce machine property "audiodev"
* ui/vnc: Require audiodev= to enable audio
* audio: remove QEMU_AUDIO_* and -audio-help support
* audio: forbid using default audiodev backend with -audiodev and -nodefaults
* remove compatibility code for old machine types
* make-release: do not ship dtc sources
* build system cleanups

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# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (24 commits)
  audio: forbid default audiodev backend with -nodefaults
  audio: propagate Error * out of audio_init
  vt82c686 machines: Support machine-default audiodev with fallback
  hw/ppc: Support machine-default audiodev with fallback
  hw/arm: Support machine-default audiodev with fallback
  Introduce machine property "audiodev"
  audio: remove QEMU_AUDIO_* and -audio-help support
  audio: simplify flow in audio_init
  audio: commonize voice initialization
  audio: return Error ** from audio_state_by_name
  audio: allow returning an error from the driver init
  audio: Require AudioState in AUD_add_capture
  ui/vnc: Require audiodev= to enable audio
  crypto: only include tls-cipher-suites in emulators
  scsi-disk: ensure that FORMAT UNIT commands are terminated
  esp: restrict non-DMA transfer length to that of available data
  esp: use correct type for esp_dma_enable() in sysbus_esp_gpio_demux()
  Makefile: build plugins before running TCG tests
  meson: clean up static_library keyword arguments
  make-release: do not ship dtc sources
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-10-03 07:43:44 -04:00
Philippe Mathieu-Daudé 9a239c6eae tcg: Clean up local variable shadowing
Fix:

  tcg/tcg.c:2551:27: error: declaration shadows a local variable [-Werror,-Wshadow]
                    MemOp op = get_memop(oi);
                          ^
  tcg/tcg.c:2437:12: note: previous declaration is here
    TCGOp *op;
           ^
  accel/tcg/tb-maint.c:245:18: error: declaration shadows a local variable [-Werror,-Wshadow]
        for (int i = 0; i < V_L2_SIZE; i++) {
                 ^
  accel/tcg/tb-maint.c:210:9: note: previous declaration is here
    int i;
        ^

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-2-philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2023-09-29 10:07:14 +02:00
Paolo Bonzini 4c545a05ab meson: clean up static_library keyword arguments
These are either built because they are dependencies of other targets,
or not needed at all because they are used via extract_objects().
Mark them as "build_by_default: false"; if applicable, mark them
as "fa" so that -Wl,--whole-archive does not interact with the
linker script used for fuzzing.

(The "fa" hack is brittle; updating to Meson 1.1 would allow using
declare_dependency(objects: ...) instead).

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1044
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-09-29 09:33:10 +02:00
Richard Henderson a97a83753c tcg: Map code_gen_buffer with PROT_BTI
For linux aarch64 host supporting BTI, map the buffer
to require BTI instructions at branch landing pads.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-16 14:57:16 +00:00
Richard Henderson 5826a0dbf0 tcg/aarch64: Emit BTI insns at jump landing pads
The prologue is entered via "call"; the epilogue, each tb,
and each goto_tb continuation point are all reached via "jump".

As tcg_out_goto_long is only used by tcg_out_exit_tb, merge
the two functions.  Change the indirect register used to
TCG_REG_TMP1, aka X17, so that the BTI condition created
is "jump" instead of "jump or call".

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-16 14:57:16 +00:00
Richard Henderson 9358fbbf6e tcg: Add tcg_out_tb_start backend hook
This hook may emit code at the beginning of the TB.

Suggested-by: Jordan Niethe <jniethe5@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-16 14:57:16 +00:00
Richard Henderson 9622c697d1 tcg: Add gvec compare with immediate and scalar operand
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230831030904.1194667-2-richard.henderson@linaro.org>
2023-09-16 14:57:15 +00:00
Jiajie Chen 58f8961285 tcg/loongarch64: Implement 128-bit load & store
If LSX is available, use LSX instructions to implement 128-bit load &
store when MO_128 is required, otherwise use two 64-bit loads & stores.

Signed-off-by: Jiajie Chen <c@jia.je>
Message-Id: <20230908022302.180442-17-c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-16 14:57:10 +00:00
Jiajie Chen 561b001aef tcg/loongarch64: Lower rotli_vec to vrotri
Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-16-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen 0765cce114 tcg/loongarch64: Lower rotv_vec ops to LSX
Lower the following ops:

- rotrv_vec
- rotlv_vec

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-15-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen 2931527b4d tcg/loongarch64: Lower vector shift integer ops
Lower the following ops:

- shli_vec
- shrv_vec
- sarv_vec

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-14-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen c8b859b45e tcg/loongarch64: Lower bitsel_vec to vbitsel
Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-13-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen 94304d7b3d tcg/loongarch64: Lower vector shift vector ops
Lower the following ops:

- shlv_vec
- shrv_vec
- sarv_vec

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-12-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen 5256ea1176 tcg/loongarch64: Lower vector saturated ops
Lower the following ops:

- ssadd_vec
- usadd_vec
- sssub_vec
- ussub_vec

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-11-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen b2f84adc00 tcg/loongarch64: Lower vector min max ops
Lower the following ops:

- smin_vec
- smax_vec
- umin_vec
- umax_vec

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-10-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen 76d20c205d tcg/loongarch64: Lower mul_vec to vmul
Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-9-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen 7d577c3ecd tcg/loongarch64: Lower neg_vec to vneg
Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-8-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen 24c42fde52 tcg/loongarch64: Lower vector bitwise operations
Lower the following ops:

- and_vec
- andc_vec
- or_vec
- orc_vec
- xor_vec
- nor_vec
- not_vec

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-7-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen e9d7c8cf95 tcg/loongarch64: Lower add/sub_vec to vadd/vsub
Lower the following ops:

- add_vec
- sub_vec

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-6-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen d8b6fa593d tcg/loongarch64: Lower cmp_vec to vseq/vsle/vslt
Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-5-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen ebe92db2cc tcg: pass vece to tcg_target_const_match()
Pass vece to tcg_target_const_match() to allow correct interpretation of
const args of vector ops.

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230908022302.180442-4-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:51 -07:00
Jiajie Chen 16288ded94 tcg/loongarch64: Lower basic tcg vec ops to LSX
LSX support on host cpu is detected via hwcap.

Lower the following ops to LSX:

- dup_vec
- dupi_vec
- dupm_vec
- ld_vec
- st_vec

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-3-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:50 -07:00
Jiajie Chen af88a28414 tcg/loongarch64: Import LSX instructions
Add opcodes and encoder functions for LSX.

Generated from
https://github.com/jiegec/loongarch-opcodes/tree/qemu-lsx.

Signed-off-by: Jiajie Chen <c@jia.je>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230908022302.180442-2-c@jia.je>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 05:26:50 -07:00
Stefan Hajnoczi 03a3a62fbd * only build util/async-teardown.c when system build is requested
* target/i386: fix BQL handling of the legacy FERR interrupts
 * target/i386: fix memory operand size for CVTPS2PD
 * target/i386: Add support for AMX-COMPLEX in CPUID enumeration
 * compile plugins on Darwin
 * configure and meson cleanups
 * drop mkvenv support for Python 3.7 and Debian10
 * add wrap file for libblkio
 * tweak KVM stubs
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* only build util/async-teardown.c when system build is requested
* target/i386: fix BQL handling of the legacy FERR interrupts
* target/i386: fix memory operand size for CVTPS2PD
* target/i386: Add support for AMX-COMPLEX in CPUID enumeration
* compile plugins on Darwin
* configure and meson cleanups
* drop mkvenv support for Python 3.7 and Debian10
* add wrap file for libblkio
* tweak KVM stubs

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# gpg: Signature made Thu 07 Sep 2023 07:44:37 EDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (51 commits)
  docs/system/replay: do not show removed command line option
  subprojects: add wrap file for libblkio
  sysemu/kvm: Restrict kvm_pc_setup_irq_routing() to x86 targets
  sysemu/kvm: Restrict kvm_has_pit_state2() to x86 targets
  sysemu/kvm: Restrict kvm_get_apic_state() to x86 targets
  sysemu/kvm: Restrict kvm_arch_get_supported_cpuid/msr() to x86 targets
  target/i386: Restrict declarations specific to CONFIG_KVM
  target/i386: Allow elision of kvm_hv_vpindex_settable()
  target/i386: Allow elision of kvm_enable_x2apic()
  target/i386: Remove unused KVM stubs
  target/i386/cpu-sysemu: Inline kvm_apic_in_kernel()
  target/i386/helper: Restrict KVM declarations to system emulation
  hw/i386/fw_cfg: Include missing 'cpu.h' header
  hw/i386/pc: Include missing 'cpu.h' header
  hw/i386/pc: Include missing 'sysemu/tcg.h' header
  Revert "mkvenv: work around broken pip installations on Debian 10"
  mkvenv: assume presence of importlib.metadata
  Python: Drop support for Python 3.7
  configure: remove dead code
  meson: list leftover CONFIG_* symbols
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-09-07 10:29:06 -04:00
Paolo Bonzini 1f2146f7ca configure, meson: remove target OS symbols from config-host.mak
Stop applying config-host.mak to the sourcesets, since it does not
have any more CONFIG_* symbols coming from the command line.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-09-07 13:32:37 +02:00
Philippe Mathieu-Daudé f703f1ef99 bulk: Do not declare function prototypes using 'extern' keyword
By default, C function prototypes declared in headers are visible,
so there is no need to declare them as 'extern' functions.
Remove this redundancy in a single bulk commit; do not modify:

  - meson.build (used to check function availability at runtime)
  - pc-bios/
  - libdecnumber/
  - tests/
  - *.c

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230605175647.88395-5-philmd@linaro.org>
2023-08-31 19:47:43 +02:00
Richard Henderson dad2f2f5af tcg/sparc64: Disable TCG_TARGET_HAS_extr_i64_i32
Since a59a293126 ("tcg/sparc64: Remove sparc32plus constraints")
we no longer distinguish registers with 32 vs 64 bits.
Therefore we can remove support for the backend-specific
type change opcodes.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-29 09:57:39 -07:00
Richard Henderson 77fafcb500 tcg: Remove vecop_list check from tcg_gen_not_vec
The not pattern is always available via generic expansion.
See debug block in tcg_can_emit_vecop_list.

Fixes: 11978f6f58 ("tcg: Fix expansion of INDEX_op_not_vec")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-29 09:57:39 -07:00
Michael Tokarev 4daad8d9d6 tcg: spelling fixes
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <20230823065335.1919380-4-mjt@tls.msk.ru>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Philippe Mathieu-Daudé ad262fb56b tcg/tcg-op: Document wswap_i64() byte pattern
Document wswap_i64(), added in commit 46be8425ff
("tcg: Implement tcg_gen_{h,w}swap_{i32,i64}").

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230823145542.79633-8-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Philippe Mathieu-Daudé b8976aa5fe tcg/tcg-op: Document hswap_i32/64() byte pattern
Document hswap_i32() and hswap_i64(), added in commit
46be8425ff ("tcg: Implement tcg_gen_{h,w}swap_{i32,i64}").

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230823145542.79633-7-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Philippe Mathieu-Daudé 95180e750b tcg/tcg-op: Document bswap64_i64() byte pattern
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230823145542.79633-6-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Philippe Mathieu-Daudé 9c40621584 tcg/tcg-op: Document bswap32_i64() byte pattern
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230823145542.79633-5-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Philippe Mathieu-Daudé 9296455697 tcg/tcg-op: Document bswap32_i32() byte pattern
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230823145542.79633-4-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Philippe Mathieu-Daudé 8b078800ab tcg/tcg-op: Document bswap16_i64() byte pattern
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230823145542.79633-3-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Philippe Mathieu-Daudé 4de5a76a92 tcg/tcg-op: Document bswap16_i32() byte pattern
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230823145542.79633-2-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Richard Henderson 95bf306e3a tcg/i386: Implement negsetcond_*
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Richard Henderson e91f015b62 tcg/i386: Use shift in tcg_out_setcond
For LT/GE vs zero, shift down the sign bit.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Richard Henderson 96658acafd tcg/i386: Clear dest first in tcg_out_setcond if possible
Using XOR first is both smaller and more efficient,
though cannot be applied if it clobbers an input.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Richard Henderson 6950f68b62 tcg/i386: Use CMP+SBB in tcg_out_setcond
Use the carry bit to optimize some forms of setcond.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Richard Henderson 78ddf0dc75 tcg/i386: Merge tcg_out_movcond{32,64}
Pass a rexw parameter instead of duplicating the functions.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Richard Henderson 7ba99a1c76 tcg/i386: Merge tcg_out_setcond{32,64}
Pass a rexw parameter instead of duplicating the functions.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00
Richard Henderson c359ce756d tcg/i386: Merge tcg_out_brcond{32,64}
Pass a rexw parameter instead of duplicating the functions.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-24 11:22:42 -07:00