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2019-05-22tcg: Expand vector minmax using cmp+cmpselRichard Henderson1-4/+16
Provide a generic fallback for the min/max operations. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22tcg: Introduce do_op3_nofail for vector expansionRichard Henderson1-18/+27
This makes do_op3 match do_op2 in allowing for failure, and thus fall back expansions. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22tcg: Add support for vector compare selectRichard Henderson1-0/+59
Perform a per-element conditional move. This combination operation is easier to implement on some host vector units than plain cmp+bitsel. Omit the usual gvec interface, as this is intended to be used by target-specific gvec expansion call-backs. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22tcg: Add support for vector bitwise selectRichard Henderson1-0/+26
This operation performs d = (b & a) | (c & ~a), and is present on a majority of host vector units. Include gvec expanders. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-13tcg: Add support for vector absolute valueRichard Henderson1-0/+39
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-13tcg: Add gvec expanders for vector shift by scalarRichard Henderson1-0/+54
Allow expansion either via shift by scalar or by replicating the scalar for shift by vector. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- v3: Use a private structure for do_gvec_shifts.
2019-05-13tcg: Add gvec expanders for variable shiftRichard Henderson1-0/+15
The gvec expanders perform a modulo on the shift count. If the target requires alternate behaviour, then it cannot use the generic gvec expanders anyway, and will have to have its own custom code. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-13tcg: Add INDEX_op_dupm_vecRichard Henderson1-0/+11
Allow the backend to expand dup from memory directly, instead of forcing the value into a temp first. This is especially important if integer/vector register moves do not exist. Note that officially tcg_out_dupm_vec is allowed to fail. If it did, we could fix this up relatively easily: VECE == 32/64: Load the value into a vector register, then dup. Both of these must work. VECE == 8/16: If the value happens to be at an offset such that an aligned load would place the desired value in the least significant end of the register, go ahead and load w/garbage in high bits. Load the value w/INDEX_op_ld{8,16}_i32. Attempt a move directly to vector reg, which may fail. Store the value into the backing store for OTS. Load the value into the vector reg w/TCG_TYPE_I32, which must work. Duplicate from the vector reg into itself, which must work. All of which is well and good, except that all supported hosts can support dupm for all vece, so all of the failure paths would be dead code and untestable. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-13tcg: Specify optional vector requirements with a listRichard Henderson1-0/+102
Replace the single opcode in .opc with a null-terminated array in .opt_opc. We still require that all opcodes be used with the same .vece. Validate the contents of this list with CONFIG_DEBUG_TCG. All tcg_gen_*_vec functions will check any list active during .fniv expansion. Swap the active list in and out as we expand other opcodes, or take control away from the front-end function. Convert all existing vector aware front ends. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-13tcg: Allow add_vec, sub_vec, neg_vec, not_vec to be expandedRichard Henderson1-16/+33
PowerPC Altivec does not support add and subtract of 64-bit elements. Prepare for that configuration by not assuming the operation is universally supported. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-30tcg: Fix LGPL version numberThomas Huth1-1/+1
It's either "GNU *Library* General Public version 2" or "GNU Lesser General Public version *2.1*", but there was no "version 2.0" of the "Lesser" library. So assume that version 2.1 is meant here. Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1548252536-6242-5-git-send-email-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-28tcg: Add opcodes for vector minmax arithmeticRichard Henderson1-0/+20
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28tcg: Add opcodes for vector saturated arithmeticRichard Henderson1-4/+30
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28tcg: Add gvec expanders for nand, nor, eqvRichard Henderson1-0/+21
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-06-01target: Do not include "exec/exec-all.h" if it is not necessaryPhilippe Mathieu-Daudé1-1/+0
Code change produced with: $ git grep '#include "exec/exec-all.h"' | \ cut -d: -f-1 | \ xargs egrep -L "(cpu_address_space_init|cpu_loop_|tlb_|tb_|GETPC|singlestep|TranslationBlock)" | \ xargs sed -i.bak '/#include "exec\/exec-all.h"/d' Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180528232719.4721-10-f4bug@amsat.org> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-05-01tcg: Allow wider vectors for cmp and mulRichard Henderson1-4/+4
In db432672, we allow wide inputs for operations such as add. However, in 212be173 and 3774030a we didn't do the same for compare and multiply. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-02-08tcg: Add generic vector ops for multiplicationRichard Henderson1-0/+22
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-02-08tcg: Add generic vector ops for comparisonsRichard Henderson1-0/+23
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-02-08tcg: Add generic vector ops for constant shiftsRichard Henderson1-0/+45
Opcodes are added for scalar and vector shifts, but considering the varied semantics of these do not expose them to the front ends. Do go ahead and provide them in case they are needed for backend expansion. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-02-08tcg: Add generic vector expandersRichard Henderson1-13/+20
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-02-08tcg: Add types and basic operations for host vectorsRichard Henderson1-0/+292
Nothing uses or enables them yet. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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