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* tcg: Make DisasContextBase.tb constRichard Henderson2021-01-071-1/+1
| | | | | | | | | | | | There is nothing within the translators that ought to be changing the TranslationBlock data, so make it const. This does not actually use the read-only copy of the data structure that exists within the rx region. Reviewed-by: Joelle van Dyne <j@getutm.app> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* translator: Use cpu_ld*_code instead of open-codingRichard Henderson2020-01-161-35/+13Star
| | | | | | | | | The DO_LOAD macros replicate the distinction already performed by the cpu_ldst.h functions. Use them. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* translator: add translator_ld{ub,sw,uw,l,q}Emilio G. Cota2019-10-281-1/+61
| | | | | | | | | | | | | We don't bother with replicating the fast path (tlb_hit) of the old cpu_ldst helpers as it has no measurable effect on performance. This probably indicates we should consider flattening the whole set of helpers but that is out of scope for this change. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Emilio G. Cota <cota@braap.org> [AJB: directly plumb into softmmu/user helpers] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
* Clean up decorations and whitespace around header guardsMarkus Armbruster2019-05-131-1/+1
| | | | | | | Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190315145123.28030-9-armbru@redhat.com>
* tcg: Hoist max_insns computation to tb_gen_codeRichard Henderson2019-04-241-1/+2
| | | | | | | | | | In order to handle TB's that translate to too much code, we need to place the control of the length of the translation in the hands of the code gen master loop. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* translator: merge max_insns into DisasContextBaseEmilio G. Cota2018-05-091-4/+4
| | | | | | | | | | | While at it, use int for both num_insns and max_insns to make sure we have same-type comparisons. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Michael Clark <mjc@sifive.com> Signed-off-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* tcg: Add generic translation frameworkLluís Vilanova2017-09-061-0/+104
| | | | | | | | | | | | | Reviewed-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Message-Id: <150002073981.22386.9870422422367410100.stgit@frigg.lan> [rth: Moved max_insns adjustment from tb_start to init_disas_context. Removed pc_next return from translate_insn. Removed tcg_check_temp_count from generic loop. Moved gen_io_end to exactly match gen_io_start. Use qemu_log instead of error_report for temporary leaks. Moved TB size/icount assignments before disas_log.] Signed-off-by: Richard Henderson <rth@twiddle.net>
* target: [tcg] Use a generic enum for DISAS_ valuesLluís Vilanova2017-09-061-0/+40
Used later. An enum makes expected values explicit and bounds the value space of switches. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Emilio G. Cota <cota@braap.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <150002049746.22386.2316077281615710615.stgit@frigg.lan> Signed-off-by: Richard Henderson <rth@twiddle.net>
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