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2023-01-06tcg/s390x: Check for long-displacement facility at startupRichard Henderson
We are already assuming the existance of long-displacement, but were not being explicit about it. This has been present since z990. Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-06tcg/s390x: Remove USE_LONG_BRANCHESRichard Henderson
The size of a compiled TB is limited by the uint16_t used by gen_insn_end_off[] -- there is no need for a 32-bit branch. Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-06tcg/s390x: Always set TCG_TARGET_HAS_direct_jumpRichard Henderson
Since USE_REG_TB is removed, there is no need to load the target TB address into a register. Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-06tcg/s390x: Remove TCG_REG_TBRichard Henderson
This reverts 829e1376d940 ("tcg/s390: Introduce TCG_REG_TB"), and several follow-up patches. The primary motivation is to reduce the less-tested code paths, pre-z10. Secondarily, this allows the unconditional use of TCG_TARGET_HAS_direct_jump, which might be more important for performance than any slight increase in code size. Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- v4: Do not simplify tgen_ori, tgen_xori.
2023-01-06tcg/s390x: Use register pair allocation for div and mulu2Richard Henderson
Previously we hard-coded R2 and R3. Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-06Merge tag 'pull-riscv-to-apply-20230106' of ↵Peter Maydell
https://github.com/alistair23/qemu into staging First RISC-V PR for QEMU 8.0 * Fix PMP propagation for tlb * Collection of bug fixes * Bump the OpenTitan supported version * Add smstateen support * Support native debug icount trigger * Remove the redundant ipi-id property in the virt machine * Support cache-related PMU events in virtual mode * Add some missing PolarFire SoC io regions * Fix mret exception cause when no pmp rule is configured * Fix bug where disabling compressed instructions would crash QEMU * Add Zawrs ISA extension support * A range of code refactoring and cleanups # gpg: Signature made Fri 06 Jan 2023 00:47:23 GMT # gpg: using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054 # gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full] # Primary key fingerprint: F6C4 AC46 D493 4868 D3B8 CE8F 21E1 0D29 DF97 7054 * tag 'pull-riscv-to-apply-20230106' of https://github.com/alistair23/qemu: (43 commits) hw/intc: sifive_plic: Fix the pending register range check hw/riscv: opentitan: Drop "hartid-base" and "priority-base" initialization hw/intc: sifive_plic: Change "priority-base" to start from interrupt source 0 hw/riscv: virt: Fix the value of "riscv, ndev" in the dtb hw/riscv: sifive_u: Avoid using magic number for "riscv, ndev" hw/riscv: sifive_e: Fix the number of interrupt sources of PLIC hw/riscv: microchip_pfsoc: Fix the number of interrupt sources of PLIC hw/intc: sifive_plic: Update "num-sources" property default value hw/intc: sifive_plic: Use error_setg() to propagate the error up via errp in sifive_plic_realize() hw/intc: sifive_plic: Improve robustness of the PLIC config parser hw/intc: sifive_plic: Drop PLICMode_H hw/riscv: spike: Remove misleading comments hw/riscv: Sort machines Kconfig options in alphabetical order hw/riscv: Fix opentitan dependency to SIFIVE_PLIC hw/intc: Select MSI_NONBROKEN in RISC-V AIA interrupt controllers hw/riscv: Select MSI_NONBROKEN in SIFIVE_PLIC RISC-V: Add Zawrs ISA extension support target/riscv: Clear mstatus.MPRV when leaving M-mode for priv spec 1.12+ target/riscv: Simplify helper_sret() a little bit target/riscv: Set pc_succ_insn for !rvc illegal insn ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-06tcg/riscv: Fix base register for user-only qemu_ld/stRichard Henderson
When guest_base != 0, we were not coordinating the usage of TCG_REG_TMP0 as base properly, leading to a previous zero-extend of the input address being discarded. Shuffle the alignment check to the front, because that does not depend on the zero-extend, and it keeps the register usage clear. Set base after each step of the address arithmetic instead of before. Return the base register used from tcg_out_tlb_load, so as to keep that register choice localized to that function. Reported-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221023233337.2846860-1-richard.henderson@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-06tcg/riscv: Fix reg overlap case in tcg_out_addsub2Richard Henderson
There was a typo using opc_addi instead of opc_add with the two registers. While we're at it, simplify the gating test to al == bl to improve dynamic scheduling even when the output register does not overlap the inputs. Reported-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221020233836.2341671-1-richard.henderson@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-06tcg/riscv: Fix range matched by TCG_CT_CONST_M12Richard Henderson
We were matching a signed 13-bit range, not a 12-bit range. Expand the commentary within the function and be explicit about all of the ranges. Reported-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221022095821.2441874-1-richard.henderson@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-05tcg: Add TCGHelperInfo argument to tcg_out_callRichard Henderson
This eliminates an ifdef for TCI, and will be required for expanding the call for TCGv_i128. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg/aarch64: Merge tcg_out_callr into tcg_out_callRichard Henderson
There is only one use, and BLR is perhaps even more self-documentary than CALLR. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Move ffi_cif pointer into TCGHelperInfoRichard Henderson
Instead of requiring a separate hash table lookup, put a pointer to the CIF into TCGHelperInfo. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221111074101.2069454-27-richard.henderson@linaro.org> [PMD: Split from bigger patch] Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221122180804.938-4-philmd@linaro.org>
2023-01-05tcg: Factor init_ffi_layouts() out of tcg_context_init()Philippe Mathieu-Daudé
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221111074101.2069454-27-richard.henderson@linaro.org> [PMD: Split from bigger patch] Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221122180804.938-3-philmd@linaro.org>
2023-01-05tcg: Convert typecode_to_ffi from array to functionPhilippe Mathieu-Daudé
In the unlikely case of invalid typecode mask, the function will abort instead of returning a NULL pointer. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221111074101.2069454-27-richard.henderson@linaro.org> [PMD: Split from bigger patch] Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221122180804.938-2-philmd@linaro.org>
2023-01-05tcg: Reorg function callsRichard Henderson
Pre-compute the function call layout for each helper at startup. Drop TCG_CALL_DUMMY_ARG, as we no longer need to leave gaps in the op->args[] array. This allows several places to stop checking for NULL TCGTemp, to which TCG_CALL_DUMMY_ARG mapped. For tcg_gen_callN, loop over the arguments once. Allocate the TCGOp for the call early but delay emitting it, collecting arguments first. This allows the argument processing loop to emit code for extensions and have them sequenced before the call. For tcg_reg_alloc_call, loop over the arguments in reverse order, which allows stack slots to be filled first naturally. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Use output_pref wrapper functionRichard Henderson
We will shortly have the possibility of more that two outputs, though only for calls (for which preferences are moot). Avoid direct references to op->output_pref[] when possible. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Vary the allocation size for TCGOpRichard Henderson
We have been allocating a worst case number of arguments to support calls. Instead, allow the size to vary. By default leave space for 4 args, to maximize reuse, but allow calls to increase the number of args to 32. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> [PMD: Split patch in two] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221218211832.73312-3-philmd@linaro.org>
2023-01-05tcg: Pass number of arguments to tcg_emit_op() / tcg_op_insert_*()Philippe Mathieu-Daudé
In order to have variable size allocated TCGOp, pass the number of arguments we use (and would allocate) up to tcg_op_alloc(). This alters tcg_emit_op(), tcg_op_insert_before() and tcg_op_insert_after() prototypes. In tcg_op_alloc() ensure the number of arguments is in range. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> [PMD: Extracted from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221218211832.73312-2-philmd@linaro.org>
2023-01-05tcg: Use TCG_CALL_ARG_EVEN for TCI special caseRichard Henderson
Change 32-bit tci TCG_TARGET_CALL_ARG_I32 to TCG_CALL_ARG_EVEN, to force 32-bit values to be aligned to 64-bit. With a small reorg to the argument processing loop, this neatly replaces an ifdef for CONFIG_TCG_INTERPRETER. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Replace TCG_TARGET_EXTEND_ARGS with TCG_TARGET_CALL_ARG_I32Richard Henderson
For 64-bit hosts that had TCG_TARGET_EXTEND_ARGS, set TCG_TARGET_CALL_ARG_I32 to TCG_CALL_ARG_EXTEND. Otherwise, use TCG_CALL_ARG_NORMAL. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Replace TCG_TARGET_CALL_ALIGN_ARGS with TCG_TARGET_CALL_ARG_I64Richard Henderson
For 32-bit hosts when TCG_TARGET_CALL_ALIGN_ARGS was set, use TCG_CALL_ARG_EVEN. For 64-bit hosts, TCG_TARGET_CALL_ALIGN_ARGS was silently ignored, so always use TCG_CALL_ARG_NORMAL. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Introduce TCGCallReturnKind and TCGCallArgumentKindRichard Henderson
Prepare to replace a bunch of separate ifdefs with a consistent way to describe the ABI of a function call. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Introduce tcg_type_sizeRichard Henderson
Add a helper function for computing the size of a type. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Allocate TCGTemp pairs in host memory orderRichard Henderson
Allocate the first of a pair at the lower address, and the second of a pair at the higher address. This will make it easier to find the beginning of the larger memory block. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Simplify calls to temp_sync vs mem_coherentRichard Henderson
The first thing that temp_sync does is check mem_coherent, so there's no need for the caller to do so. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Add temp_subindex to TCGTempRichard Henderson
Record the location of a TCGTemp within a larger object. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Move TCG_{LOW,HIGH} to tcg-internal.hRichard Henderson
Move the error-generating fallback from tcg-op.c, and replace "_link_error" with modern QEMU_ERROR markup. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Introduce paired register allocationRichard Henderson
There are several instances where we need to be able to allocate a pair of registers to related inputs/outputs. Add 'p' and 'm' register constraints for this, in order to be able to allocate the even/odd register first or second. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tcg: Massage process_op_defs()Philippe Mathieu-Daudé
In preparation of introducing paired registers, massage a bit process_op_defs()'s switch case. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> [PMD: Split from bigger patch, 1/3] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221219220925.79218-2-philmd@linaro.org>
2023-01-04tcg: Remove check_regsRichard Henderson
We now check the consistency of reg_to_temp[] with each update, so the utility of checking consistency at the end of each opcode is minimal. In addition, the form of this check is quite expensive, consuming 10% of a checking-enabled build. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tcg: Centralize updates to reg_to_tempRichard Henderson
Create two new functions, set_temp_val_{reg,nonreg}. Assert that the reg_to_temp mapping is correct before any changes are made. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tcg: Fix tcg_reg_alloc_dup*Richard Henderson
The assignment to mem_coherent should be done with any modification, not simply with a newly allocated register. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tci: MAX_OPC_PARAM_IARGS is no longer usedRichard Henderson
Unused since commit 7b7d8b2d9a ("tcg/tci: Use ffi for calls"). Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tcg: Remove TCG_TARGET_STACK_GROWSUPRichard Henderson
The hppa host code has been removed since 2013; this should have been deleted at the same time. Fixes: 802b5081233a ("tcg-hppa: Remove tcg backend") Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tcg: Tidy tcg_reg_alloc_opRichard Henderson
Replace goto allocate_in_reg with a boolean. Remove o_preferred_regs which isn't used, except to copy. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tcg: Cleanup trailing whitespaceRichard Henderson
Remove whitespace at end of line, plus one place this also highlights some missing braces. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tcg/s390x: Fix coding stylePhilippe Mathieu-Daudé
We are going to modify this code, so fix its style first to avoid: ERROR: spaces required around that '*' (ctx:VxV) #281: FILE: tcg/s390x/tcg-target.c.inc:1224: + uintptr_t mask = ~(0xffffull << i*16); ^ Reviewed-by: Wilfred Mallawa <wilfred.mallawa@wdc.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221130132654.76369-2-philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04tcg: convert tcg/README to rstMark Cave-Ayland
Convert tcg/README to rst and move it to docs/devel as a new "TCG Intermediate Representation" page. There are a few minor changes to improve the aesthetic of the final output which are as follows: - Rename the title from "Tiny Code Generator - Fabrice Bellard" to "TCG Intermediate Representation" - Remove the section numbering - Add the missing parameters to the ssadd_vec operations in the "Host vector operations" section - Change the path to the Atomic Operations document to use a proper reference - Replace tcg/README in tcg.rst with a proper reference to the new document Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Fabiano Rosas <farosas@suse.de> Message-Id: <20221130100434.64207-2-mark.cave-ayland@ilande.co.uk> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-11-09tcg: Move TCG_TARGET_HAS_direct_jump init to tb_gen_codeRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-11-01Merge tag 'pull-testing-for-7.2-011122-3' of https://github.com/stsquad/qemu ↵Stefan Hajnoczi
into staging testing and plugin updates for 7.2: - cleanup win32/64 docker files - update test-mingw test - add flex/bison to debian-all-test - handle --enable-static/--disable-pie in config - extend timeouts on x86_64 avocado tests - add flex/bison to debian-hexagon-cross - use regular semihosting for nios2 check-tcg - fix obscure linker error to nios2 softmmu tests - various windows portability fixes for tests - clean-up of MAINTAINERS - use -machine none when appropriate in avocado - make raspi2_initrd test detect shutdown - disable sh4 rd2 tests on gitlab - re-enable threadcount/linux-test for sh4 - clean-up s390x handling of "ex" instruction - better handle new CPUs in execlog plugin - pass CONFIG_DEBUG_TCG to plugin builds - try and avoid races in test-io-channel-command - speed up ssh key checking for tests/vm # -----BEGIN PGP SIGNATURE----- # # iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAmNhI/MACgkQ+9DbCVqe # KkSFXggAg0HIpBDcNz0V5Mh5p69F14pwbDSygKqGDFBebdOHeL7f+WCvQPUGEWxp # 814zjvRY3SC4Mo4mtzguRvNu0styaUpemvRw5FDYK48GpEjg2eVxTnAFD4nr7ud0 # dhw3iaHP+RjA6s3EpPUqQ5nlZEgFJ+Tvkckk3wKSpksBYA4tJra6Uey5kpZ27x0T # KOzB2P6w+9B/B11n/aeSxvRPZdnXt2MyfS/3pwwfoFYioEyaEQ3Ie6ooachtdSL3 # PEvnJVK0VVYbZQwBXJlycNLlK/D++s4AEwmnZ5GmvDFuXlkRO9YMy9Wa5TKJl7gz # 76Aw1KHsE03SyAPvH4bE7eGkIwhJOQ== # =6hXE # -----END PGP SIGNATURE----- # gpg: Signature made Tue 01 Nov 2022 09:49:39 EDT # gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44 # gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [unknown] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44 * tag 'pull-testing-for-7.2-011122-3' of https://github.com/stsquad/qemu: (31 commits) tests/vm: use -o IdentitiesOnly=yes for ssh tests/unit: cleanups for test-io-channel-command contrib/plugins: protect execlog's last_exec expansion contrib/plugins: enable debug on CONFIG_DEBUG_TCG tests/tcg: include CONFIG_PLUGIN in config-host.mak target/s390x: fake instruction loading when handling 'ex' target/s390x: don't probe next pc for EXecuted insns target/s390x: don't use ld_code2 to probe next pc tests/tcg: re-enable threadcount for sh4 tests/tcg: re-enable linux-test for sh4 tests/avocado: disable sh4 rd2 tests on Gitlab tests/avocado: raspi2_initrd: Wait for guest shutdown message before stopping tests/avocado: set -machine none for userfwd and vnc tests MAINTAINERS: fix-up for check-tcg Makefile changes MAINTAINERS: add features_to_c.sh to gdbstub files MAINTAINERS: add entries for the key build bits hw/usb: dev-mtp: Use g_mkdir() block/vvfat: Unify the mkdir() call tcg: Avoid using hardcoded /tmp semihosting/arm-compat-semi: Avoid using hardcoded /tmp ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-10-31tcg: Avoid using hardcoded /tmpBin Meng
Use g_get_tmp_dir() to get the directory to use for temporary files. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221006151927.2079583-3-bmeng.cn@gmail.com> Message-Id: <20221027183637.2772968-12-alex.bennee@linaro.org>
2022-11-01tcg/tci: fix logic error when registering helpers via FFIIcenowy Zheng
When registering helpers via FFI for TCI, the inner loop that iterates parameters of the helper reuses (and thus pollutes) the same variable used by the outer loop that iterates all helpers, thus made some helpers unregistered. Fix this logic error by using a dedicated temporary variable for the inner loop. Fixes: 22f15579fa ("tcg: Build ffi data structures for helpers") Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Icenowy Zheng <uwu@icenowy.me> Message-Id: <20221028072145.1593205-1-uwu@icenowy.me> [rth: Move declaration of j to the for loop itself] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-11-01tcg/sparc64: Remove sparc32plus constraintsRichard Henderson
With sparc64 we need not distinguish between registers that can hold 32-bit values and those that can hold 64-bit values. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-11-01tcg/sparc64: Rename from tcg/sparcRichard Henderson
Emphasize that we only support full 64-bit code generation. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-11-01tcg/sparc: Remove support for sparc32plusRichard Henderson
Since 9b9c37c36439, we have only supported sparc64 cpus. Debian and Gentoo now only support 64-bit sparc64 userland, so it is time to drop the 32-bit sparc64 userland: sparc32plus. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-10-25tcg/aarch64: Remove unused code in tcg_out_opQi Hu
AArch64 defines the TCG_TARGET_HAS_direct_jump. So the "else" block is useless in the case of "INDEX_op_goto_tb" in function "tcg_out_op". Add an assertion and delete these codes for clarity. Suggested-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Qi Hu <huqi@loongson.cn> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221017020826.990729-1-huqi@loongson.cn> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-10-25tcg/loongarch64: Add direct jump supportQi Hu
Similar to the ARM64, LoongArch has PC-relative instructions such as PCADDU18I. These instructions can be used to support direct jump for LoongArch. Additionally, if instruction "B offset" can cover the target address(target is within ±128MB range), a single "B offset" plus a nop will be used by "tb_target_set_jump_target". Signed-off-by: Qi Hu <huqi@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: WANG Xuerui <git@xen0n.name> Message-Id: <20221015092754.91971-1-huqi@loongson.cn> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-10-04tcg/ppc: Optimize 26-bit jumpsLeandro Lupori
PowerPC64 processors handle direct branches better than indirect ones, resulting in less stalled cycles and branch misses. However, PPC's tb_target_set_jmp_target() was only using direct branches for 16-bit jumps, while PowerPC64's unconditional branch instructions are able to handle displacements of up to 26 bits. To take advantage of this, now jumps whose displacements fit in between 17 and 26 bits are also converted to direct branches. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Leandro Lupori <leandro.lupori@eldorado.org.br> [rth: Expanded some commentary.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-10-04accel/tcg: Introduce tb_pc and log_pcRichard Henderson
The availability of tb->pc will shortly be conditional. Introduce accessor functions to minimize ifdefs. Pass around a known pc to places like tcg_gen_code, where the caller must already have the value. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-01misc: fix commonly doubled up wordsDaniel P. Berrangé
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20220707163720.1421716-5-berrange@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-16 05:38:36 +0000