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2021-10-27tcg/optimize: Split out fold_xx_to_xRichard Henderson
Pull the "op r, a, a => mov r, a" optimization into a function, and use it in the outer opcode fold functions. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_xx_to_iRichard Henderson
Pull the "op r, a, a => movi r, 0" optimization into a function, and use it in the outer opcode fold functions. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_movRichard Henderson
This is the final entry in the main switch that was in a different form. After this, we have the option to convert the switch into a function dispatch table. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_dup, fold_dup2Richard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_bswapRichard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_count_zerosRichard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_depositRichard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_extract, fold_sextractRichard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_extract2Richard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_movcondRichard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_addsub2_i32Richard Henderson
Add two additional helpers, fold_add2_i32 and fold_sub2_i32 which will not be simple wrappers forever. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_mulu2_i32Richard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_setcondRichard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_brcondRichard Henderson
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_brcond2Richard Henderson
Reduce some code duplication by folding the NE and EQ cases. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_setcond2Richard Henderson
Reduce some code duplication by folding the NE and EQ cases. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_const{1,2}Richard Henderson
Split out a whole bunch of placeholder functions, which are currently identical. That won't last as more code gets moved. Use CASE_32_64_VEC for some logical operators that previously missed the addition of vectors. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_mb, fold_qemu_{ld,st}Richard Henderson
This puts the separate mb optimization into the same framework as the others. While fold_qemu_{ld,st} are currently identical, that won't last as more code gets moved. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Use a boolean to avoid a mass of continuesRichard Henderson
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out finish_foldingRichard Henderson
Copy z_mask into OptContext, for writeback to the first output within the new function. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Return true from tcg_opt_gen_{mov,movi}Richard Henderson
This will allow callers to tail call to these functions and return true indicating processing complete. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Change fail return for do_constant_folding_cond*Richard Henderson
Return -1 instead of 2 for failure, so that we can use comparisons against 0 for all cases. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Drop nb_oargs, nb_iargs localsRichard Henderson
Rather than try to keep these up-to-date across folding, re-read nb_oargs at the end, after re-reading the opcode. A couple of asserts need dropping, but that will take care of itself as we split the function further. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out fold_callRichard Henderson
Calls are special in that they have a variable number of arguments, and need to be able to clobber globals. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out copy_propagateRichard Henderson
Continue splitting tcg_optimize. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out init_argumentsRichard Henderson
There was no real reason for calls to have separate code here. Unify init for calls vs non-calls using the call path, which handles TCG_CALL_DUMMY_ARG. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Move prev_mb into OptContextRichard Henderson
This will expose the variable to subroutines that will be broken out of tcg_optimize. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Change tcg_opt_gen_{mov,movi} interfaceRichard Henderson
Adjust the interface to take the OptContext parameter instead of TCGContext or both. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Remove do_default labelRichard Henderson
Break the final cleanup clause out of the main switch statement. When fully folding an opcode to mov/movi, use "continue" to process the next opcode, else break to fall into the final cleanup. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Split out OptContextRichard Henderson
Provide what will become a larger context for splitting the very large tcg_optimize function. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27tcg/optimize: Rename "mask" to "z_mask"Richard Henderson
Prepare for tracking different masks by renaming this one. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-13tcg: Canonicalize alignment flags in MemOpRichard Henderson
Having observed e.g. al8+leq in dumps, canonicalize to al+leq. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-13tcg: Move helper_*_mmu decls to tcg/tcg-ldst.hRichard Henderson
These functions have been replaced by cpu_*_mmu as the most proper interface to use from target code. Hide these declarations from code that should not use them. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement TCG_TARGET_HAS_cmpsel_vecRichard Henderson
This is via expansion; don't actually set TCG_TARGET_HAS_cmpsel_vec. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement TCG_TARGET_HAS_bitsel_vecRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement TCG_TARGET_HAS_sat_vecRichard Henderson
The unsigned saturations are handled via generic code using min/max. The signed saturations are expanded using double-sized arithmetic and a saturating pack. Since all operations are done via expansion, do not actually set TCG_TARGET_HAS_sat_vec. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement TCG_TARGET_HAS_minmax_vecRichard Henderson
Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement vector shift operationsRichard Henderson
Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement TCG_TARGET_HAS_mul_vecRichard Henderson
Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement andc, orc, abs, neg, not vector operationsRichard Henderson
These logical and arithmetic operations are optional but trivial. Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement minimal vector operationsRichard Henderson
Implementing add, sub, and, or, xor as the minimal set. This allows us to actually enable vectors in query_s390_facilities. Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement tcg_out_dup*_vecRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement tcg_out_mov for vector typesRichard Henderson
Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Implement tcg_out_ld/st for vector typesRichard Henderson
Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Add host vector frameworkRichard Henderson
Add registers and function stubs. The functionality is disabled via squashing s390_facilities[2] to 0. We must still include results for the mandatory opcodes in tcg_target_op_def, as all opcodes are checked during tcg init. Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Merge TCG_AREG0 and TCG_REG_CALL_STACK into TCGRegRichard Henderson
They are rightly values in the same enumeration. Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg/s390x: Change FACILITY representationRichard Henderson
We will shortly need to be able to check facilities beyond the first 64. Instead of explicitly masking against s390_facilities, create a HAVE_FACILITY macro that indexes an array. Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- v2: Change name to HAVE_FACILITY (david)
2021-10-05tcg/s390x: Rename from tcg/s390Richard Henderson
This emphasizes that we don't support s390, only 64-bit s390x hosts. Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg: Expand usadd/ussub with umin/umaxRichard Henderson
For usadd, we only have to consider overflow. Since ~B + B == -1, the maximum value for A that saturates is ~B. For ussub, we only have to consider underflow. The minimum value that saturates to 0 from A - B is B. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05trace: Split guest_mem_beforeRichard Henderson
There is no point in encoding load/store within a bit of the memory trace info operand. Represent atomic operations as a single read-modify-write tracepoint. Use MemOpIdx instead of inventing a form specifically for traces. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-15 02:10:28 +0000