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2057 commits

Author SHA1 Message Date
MerryMage
3806284cbe emit_x64{,_vector}_floating_point: Fix non-FMA execution 
Avoid repeated calls to GetArgumentInfo
 2021-01-02 20:40:32 +00:00
MerryMage
6023bcd8ad emit_x64_data_processing: Fix signed/unsigned warning 2021-01-02 20:12:48 +00:00
MerryMage
c15917b350 backend/x64: Add further Unsafe_InaccurateNaN locations 2021-01-02 20:12:48 +00:00
MerryMage
f9ccf91b94 Add Unsafe_InaccurateNaN optimization to all fma instructions 2021-01-02 17:22:50 +00:00
MerryMage
8c4463a0c1 emit_x64_data_processing: EmitSub: Use cmp where possible 2021-01-01 19:37:47 +00:00
MerryMage
e926f0b393 emit_x64_data_processing: Minor optimization for immediates in EmitSub 2021-01-01 13:35:01 +00:00
MerryMage
eeeafaf5fb Introduce Unsafe_InaccurateNaN 2021-01-01 07:18:05 +00:00
ReinUsesLisp
4a9a0d07f7 backend/{a32,a64}_emit_x64: Add config entry to mask page table pointers 
Add config entry to mask out the lower bits in page table pointers.
This is intended to allow users of Dynarmic to pack small integers
inside pointers and update the pair atomically without locks.
These lower bits can be masked out due to the expected alignment in
pointers inside the page table.

For the given usage, using AND on the pointer acts the same way as a
TEST instruction. That said when the mask value is zero, TEST is still
emitted to keep the same behavior.
 2020-12-29 19:16:46 +00:00
MerryMage
42059edca4 decoder_detail: Fix bit_position and one unused warnings in GetArgInfo 2020-12-28 23:34:23 +00:00
MerryMage
b47e5ea1e1 emit_x64_data_processing: Use BMI2 shifts where possible 2020-12-28 22:42:51 +00:00
ReinUsesLisp
ba6654b0e7 location_descriptor: Fix compare operator for single stepping 
Compare `single_stepping` with the other's value instead of comparing it
with the local value.
 2020-12-01 09:11:40 +00:00
Wunk
3e932ca55d
emit_x64_vector: Fix ArithmeticShiftRightByte zero_extend constant 
Should be shifting in _bytes_ of `0x80`. Not bits.
 2020-11-09 09:47:51 -08:00
Wunkolo
ec52922dae emit_x64_vector: Use explicit 64-bit mask constant 
Exchange `~0ull` with `0xFFFFFFFFFFFFFFFF` when generating
the `zero_extend` constant.
 2020-11-07 15:29:12 +00:00
Wunkolo
490160ef43 emit_x64_vector: GNFI implementation of ArithmeticShiftRightByte 
The bit-matrix is generated up-front and added to the constant-pool.
I'm using an embedded 64-bit broadcast here(m64bcst) which is the particular
EVEX encoded version of the instruction with AVX512VL+GNFI.

If it ever really matters, then we would ideally detect specific host
features like bare-GFNI and specific subsets of AVX512 and emit
the assembly based on that rather than by the entire Icelake uarch.
 2020-11-07 15:29:12 +00:00
Wunkolo
7df235aefb emit_x64_vector: GNFI implementation of EmitVectorLogicalShiftLeft8 
Same principle as EmitVectorLogicalShiftRight8. An 8x8 galois identity
matrix is bit-shfited to allow for arbitrary 8-bit-lane shifts.
 2020-11-07 15:29:12 +00:00
Wunkolo
5cc646ffed emit_x64_vector: GNFI implementation of EmitVectorLogicalShiftRight8 
Bitshifts of the GFNI identity matrix generates a new matrix that
applies lane-wise bitshifts as well. This allows for a fast
single-instruction implementation of a byte-lane bitshift.
 2020-11-07 15:29:12 +00:00
MerryMage
46f96904db decoder_detail: Add check for N==0 to GetArgInfo 2020-10-11 22:12:21 +01:00
Wunkolo
6bb49726f4 emit_x64_vector: GNFI+SSSE3 implementation of EmitVectorReverseBits 
Performs a full 128-bit bit-reversal using only two instructions.

First by reversing all the bits of each byte using a galois matrix
multiplication(vgf2p8affineqb, Icelake), and then by reversing the bytes
themselves(pshufb, ssse3).
 2020-10-02 05:56:59 +01:00
ReinUsesLisp
eb00bea1ff backend/x64/exception_handler_posix: Fix signal stack memory leak in SigHandler 
std::malloc was being called inside SigHandler's constructor without a
std::free. This doesn't really matter as SigHandler is used as a
singleton and the OS will reclaim that memory. That said, properly
freeing memory keeps -fsanitize=address quiet.
 2020-10-02 05:56:07 +01:00
Wunkolo
c2d5f6da90 block_of_code: Add HasAVX512_Icelake 
Detect AVX512 feature support up to the [Icelake-level featureset](https://en.wikipedia.org/wiki/AVX-512#CPUs_with_AVX-512)
 2020-09-19 15:20:40 +01:00
Lioncash
0e1112b7df Revert "basic_block: Mark move constructor and assignment as noexcept" 
This reverts commit 4f12e86ebb.

Big fan of MSVC preventing standard behavior.
 2020-08-14 16:49:40 -04:00
Lioncash
889635d17d general: Resolve -Wmissing-prototypes warnings 2020-08-14 14:50:09 -04:00
Lioncash
68fea20020 common/assert: Resolve several -Wextra-semi warnings 
Resolves 200+ warnings.
 2020-08-14 14:45:53 -04:00
Lioncash
4f12e86ebb basic_block: Mark move constructor and assignment as noexcept 
Allows the type to play nicely with standard library facilities better
(also we shouldn't be throwing in move operations to begin with).
 2020-08-14 14:38:28 -04:00
Lioncash
34f4d99454 block_of_code: Remove unused variables in GenRunCode() 
These aren't used, so they can be removed.
 2020-08-14 14:35:17 -04:00
Lioncash
29d1758923 ir_matcher: Add missing header guard 2020-08-14 14:32:34 -04:00
MerryMage
6bbc53839f Unsafe Optimization: Extend Unsafe_UnfuseFMA to all FMA-related instructions 2020-07-12 12:45:12 +01:00
MerryMage
d05d95c132 Improve documentation of unsafe optimizations 2020-07-12 12:41:11 +01:00
MerryMage
82417da780 emit_x64{_vector}_floating_point: Add unsafe optimizations for RSqrtEstimate and RecipEstimate 2020-07-11 14:05:57 +01:00
MerryMage
761e95eec0 A64: Add unsafe_optimizations option 
* Strength reduce FMA unsafely
 2020-07-06 21:02:30 +01:00
MerryMage
82868034d3 A32/ASIMD: Ensure decoder table is correct 
* Raise a DecoderError instead of ASSERT-ing on a decode error
* Correct ASIMD decode table
* Write a test which verifies every possible ASIMD instruction
 2020-07-05 18:45:42 +01:00
MerryMage
3c742960a9 simd_three_same: Ensure zero in upper for PairedMinMaxOperation 2020-07-04 11:25:36 +01:00
MerryMage
735738c7b6 A32: Implement ASIMD VPMAX, VPMIN (floating-point) 2020-07-04 11:04:10 +01:00
MerryMage
88e74cb2ba A32: Implement ASIMD VPMAX, VPMIN (integer) 2020-07-04 11:04:10 +01:00
MerryMage
d9914b1d51 simd_permute: Implement VectorUnzip with deinterleave lower 2020-07-04 11:04:10 +01:00
MerryMage
f35aaa017c IR: Add VectorDeinterleave{Even,Odd}Lower 2020-07-04 11:04:10 +01:00
MerryMage
df477c46c2 asimd_load_store_structures: VST1 undef correction 2020-07-04 11:04:10 +01:00
MerryMage
4ba1f8b9e7 Add optimization flags to disable specific optimizations 2020-07-04 11:04:10 +01:00
MerryMage
3eed024caf asimd_three_same: Ignore Q=1 for VPADD (floating-point) 2020-07-04 11:04:10 +01:00
MerryMage
896cb46c89 asimd_*: Standardize order of n and m to reduce confusion 2020-07-04 11:04:10 +01:00
MerryMage
4b8a781c04 emit_x64_floating_point: Introduce ICODE 2020-07-04 11:04:10 +01:00
MerryMage
7022281a0b emit_x64_vector_floating_point: Introduce ICODE 2020-07-04 11:04:10 +01:00
Merry
4f967387c0 asimd_three_regs: Reimplement asimd_VMLAL in terms of WideInstruction 2020-06-27 13:06:46 +01:00
Merry
7997404ee7 A32: Implement ASIMD V{ADD,SUB}{W,L} 2020-06-27 12:58:47 +01:00
Merry
868bd00ab5 A32: Rearrange translators for ASIMD Three Registers 
* Separate Three Registers with Different Lengths from Same Lengths decoders
 2020-06-27 11:15:07 +01:00
Merry
b1ff971a92 backend/x64: Temporarily avoid use of DefineValue(Argument&) 
Issues with inappropriate values in upper bits of values
 2020-06-27 10:52:59 +01:00
MerryMage
8a1f106dba decoder/asimd: Correct names of scalar exceptions 2020-06-25 17:40:11 +01:00
MerryMage
495f58eed8 A32: Implement ASIMD VSHLL 2020-06-24 23:47:13 +01:00
MerryMage
ed48a9d7d5 A32: Implement VFPv5 VRINTX 2020-06-24 22:31:58 +01:00
MerryMage
46445d0866 A64: Remove NaN accuracy setting 
Always do accuracte NaN handling.
 2020-06-24 22:26:10 +01:00