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1553 commits

Author SHA1 Message Date
Lioncash
20ffe568d0 A64: Implement RMIF 2020-04-22 20:58:11 +01:00
Merry
6d7e7c3269 Merge pull request #443 from lioncash/flag 
A64: Rearrange flag format/manipulation instructions
 2020-04-22 20:58:11 +01:00
Lioncash
51b526e453 A64: Implement CFINV 2020-04-22 20:58:11 +01:00
Merry
5d01f1b462 Merge pull request #441 from lioncash/constexpr 
common/bit_util: Mark a few functions as constexpr
 2020-04-22 20:58:11 +01:00
Lioncash
597a8be5d5 ir: Add A64-specific opcodes for getting and setting raw NZCV values 
This will be necessary to implement the flag manipulation and flag
format instructions.
 2020-04-22 20:58:11 +01:00
Merry
743c52fdc5 Merge pull request #440 from lioncash/include 
common/fp: Remove unnecessary includes
 2020-04-22 20:58:11 +01:00
Lioncash
d3515279df A64: Implement the vector version of FCVTXN 2020-04-22 20:58:10 +01:00
Lioncash
17aea0b997 A64: Implement UQSHL (register)'s scalar variant 
This can be implemented in terms of the vector variant.
 2020-04-22 20:58:10 +01:00
Lioncash
c99d4b762e A64: Implement single and double-precision vector variant of FSQRT 2020-04-22 20:58:10 +01:00
Lioncash
54e0b487f3 A64: Rearrange flag format/manipulation instructions 
Gives these instructions better categorical labeling.
 2020-04-22 20:58:10 +01:00
Lioncash
88d1977cb9 common/bit_util: Make a few functions as constexpr 
These four functions can be made constexpr with no issue.
 2020-04-22 20:58:10 +01:00
Lioncash
f33e5939b7 common/fp: Remove unnecessary includes 2020-04-22 20:58:10 +01:00
Lioncash
302f56b36a A64: Fall back to interpreting for FCADD and FCMLA half-precision variants 
Rather than straight-up treating them as undefined, we can fall back to an
interpreter in this case.
 2020-04-22 20:58:10 +01:00
Lioncash
4339a8fff6 A64: Implement the scalar version of FCVTXN 2020-04-22 20:58:10 +01:00
Lioncash
35ddf68ad5 A64: Implement SQSHL (register)'s scalar variant 
We can implement this in terms of the vector variant.
 2020-04-22 20:58:10 +01:00
Lioncash
5cf1478620 frontend/ir: Add opcodes for vector square roots 2020-04-22 20:58:10 +01:00
Lioncash
36027ebef5 frontend/ir/microinstruction: Add missing cases for FPRecipExponent{32,64} for ReadsFromAndWritesToFPSRCumulativeExceptionBits() 
This was intended to be added within #437, but was missed
 2020-04-22 20:58:10 +01:00
Merry
40b081438a Merge pull request #439 from lioncash/fcmla 
A64: Implement FCADD and FCMLA
 2020-04-22 20:58:10 +01:00
Lioncash
7c81a58ed3 frontend/ir/ir_emitter: Alter parameters of FPDoubleToSingle() and FPSingleToDouble() to pass along desired rounding mode 
This will be necessary to special-case the non-IEEE Von Neumann rounding
to odd rounding mode.
 2020-04-22 20:58:10 +01:00
Merry
d91192681a Merge pull request #438 from lioncash/fmulx 
A64: Implement scalar double/single precision FMULX (by element)
 2020-04-22 20:58:10 +01:00
Lioncash
ed29ef8cca A64: Implement FCMLA 2020-04-22 20:58:10 +01:00
Lioncash
95af9dafbe common/fp/op: Add FP conversion functions 2020-04-22 20:58:10 +01:00
Merry
9f11720a69 Merge pull request #437 from lioncash/frecpx 
A64: Implement FRECPX (single, double precision)
 2020-04-22 20:58:10 +01:00
Lioncash
bdcea0b0dc A64: Implement scalar double/single precision FMULX (by element) 2020-04-22 20:58:10 +01:00
Lioncash
5ce17574f9 A64: Implement FCADD 2020-04-22 20:58:10 +01:00
Merry
34d917f34e Merge pull request #436 from lioncash/no-alloc 
A64: Implement LDNP/STNP
 2020-04-22 20:58:10 +01:00
Lioncash
e44730ba6d A64: Implement FRECPX (single, double precision) 2020-04-22 20:58:10 +01:00
Lioncash
bfaeb08d3c A64: Implement LDNP/STNP 
LDNP and STNP indicate that a memory access is non-temporal/streaming
(i.e. unlikely to be repeated), allowing data caching to not be
performed. However, given this is only a hint, we can treat these two
instructions as regular LDP and STP instructions for the time being.
 2020-04-22 20:58:10 +01:00
Lioncash
9cf3c25811 frontend/ir/ir_emitter: Add opcodes for floating point reciprocal exponents 2020-04-22 20:58:10 +01:00
Merry
dbf47db713 Merge pull request #434 from lioncash/format 
A32/translate_arm: Formatting/tidying up
 2020-04-22 20:58:10 +01:00
Lioncash
b168c2a9f9 common/fp/op: Add operations for floating-point reciprocal exponents 2020-04-22 20:58:10 +01:00
Lioncash
05a6ab691d translate_arm/coprocessor: Minor tidying up 2020-04-22 20:58:10 +01:00
Lioncash
1e32a09c03 translate_arm/vfp2: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
e209b31073 translate_arm/synchronization: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
9514e3602e translate_arm/status_register_access: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
c6aa1a708a translate_arm/saturated: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
a72813599a translate_arm/reversal: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
7be56e6b67 translate_arm/parallel: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
3c00a616d6 translate_arm/packing: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
c711188f46 translate_arm/multiply: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
c8dad40d81 translate_arm/misc: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
a7bf5ff77d translate_arm/load_store: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
2e180a7f14 backend/x64/a32_interface: Mark Context move constructor and move assignment as noexcept 
Provides a more "correct" move constructor/assignment operator, since
these relevant functions shouldn't throw exceptions.

Has the benefit of playing nicely with std::move_if_noexcept and other
noexcept library facilities.
 2020-04-22 20:58:09 +01:00
Lioncash
f4b19a7393 translate_arm/extension: Invert conditionals where applicable 2020-04-22 20:58:09 +01:00
Lioncash
deb9dd4acc block_of_code: Replace cast with [[maybe_unused]] in DoesCpuSupport() 2020-04-22 20:58:09 +01:00
Lioncash
c2de6ecfd0 translate_arm/exception_generating: Invert conditionals where applicable 2020-04-22 20:58:09 +01:00
Lioncash
d8a8d3b073 translate_arm/data_processing: Invert conditionals where applicable 2020-04-22 20:58:09 +01:00
Lioncash
df5c51ff47 translate_arm/branch: Invert conditionals where applicable 
Allows unindenting code a bit.
 2020-04-22 20:58:09 +01:00
Lioncash
3290a9fdc2 common: Remove address_range.h 
The AddressRange structure isn't used anywhere within the codebase, so
this can be removed. Particularly because there's no real appeal/heavy
potential use of it in the future that isn't trivial to add back if
needed.
 2020-04-22 20:57:38 +01:00
Lioncash
ee973f13c7 frontend/A32/ir_emitter: Mark PC() and AlignPC() as const-qualified member functions 
These don't modify instance state, so they can be const-qualified member
functions.
 2020-04-22 20:57:38 +01:00
Lioncash
3a2dd09122 frontend/A64/ir_emitter: Mark PC() and AlignPC() as const qualified member functions 
These don't actually alter any instance state.
 2020-04-22 20:57:38 +01:00
Lioncash
575ae852a9 constant_propagation_pass: Fold byte reversal opcodes where applicable 
These are reasonably trivial to fold away when applicable. We just
perform the swap and replace the instruction with the constant value.
 2020-04-22 20:57:37 +01:00
Merry
2c53f354ab Merge pull request #418 from lioncash/fold-op 
constant_propagation_pass: Handle folding for Least/MostSignificant{Bit, Byte, Half, Word} opcodes
 2020-04-22 20:57:37 +01:00
Merry
ad14a33672 Merge pull request #417 from lioncash/swap 
common: Move byte swapping functions to bit_utils.h
 2020-04-22 20:57:37 +01:00
Lioncash
d302d9bd0c constant_propagation_pass: Handle folding for Least/MostSignificant{Bit, Byte, Half, Word} opcodes 
These are quite trivial to fold.
 2020-04-22 20:57:37 +01:00
Lioncash
7139942976 common: Move byte swapping functions to bit_utils.h 
These are quite general functions, so they can just be moved into common
instead of recreating a namespace here.
 2020-04-22 20:57:37 +01:00
MerryMage
7c8fcaef26 emit_x64_vector_floating_point: AVX && DN implementation of EmitFPVectorMulX 2020-04-22 20:57:37 +01:00
MerryMage
e3898e628e A64: Implement FMULX (by element), single and double precision variants 2020-04-22 20:57:37 +01:00
Lioncash
93351c7efb a64_emit_x64: Make constness of loop elements explicit within GenFastmemFallbacks() 2020-04-22 20:57:37 +01:00
MerryMage
c106d8cedf A64: Implement FMULX, vector single-precision and double-precision variant 2020-04-22 20:57:37 +01:00
Lioncash
7752ffc50c a64_emit_x64: Convert std::vector instances in GenFastmemFallbacks() to std::array 
Given these are quite small, we can avoid the need to heap allocate
here.
 2020-04-22 20:57:37 +01:00
MerryMage
fa8925c4df IR: Implement FPVectorMulX 2020-04-22 20:57:37 +01:00
Michał Janiszewski
bbd8abaa25 Provide justification for always-true condition (#412) 2020-04-22 20:57:37 +01:00
Michał Janiszewski
7d0e918b51 Add missing include guards 2020-04-22 20:57:37 +01:00
V.Kalyuzhny
764a93bf5a Switch boost::optional to std::optional 2020-04-22 20:57:37 +01:00
Lioncash
07c197e8d0 constant_propagation_pass: Add 64-bit variants of shifts to the pass 
These optimizations can also apply to the 64-bit variants of the shift
opcodes; we just need to check if the instruction has an associated
pseudo-op before performing the 32-bit variant's specifics.

While we're at it, we can also relocate the code to its own function
like the rest of the cases to keep organization consistent.
 2020-04-22 20:57:37 +01:00
Lioncash
8248999c5d constant_propagation_pass: Fold division operations where applicable 
We can fold division operations if:

1. The divisor is zero, then we can replace the result with zero (as this is how
ARM platforms expect it).
2. Both values are known, in which case we can just do the operation and
store the result
3. The divisor is 1, in which case just return the other operand.
 2020-04-22 20:57:37 +01:00
Merry
d83eae2004 Merge pull request #406 from lioncash/mul 
constant_propagation_pass: Fold Mul32 and Mul64 cases where applicable
 2020-04-22 20:57:37 +01:00
Merry
73d9393300 Merge pull request #405 from lioncash/inst 
a64: Add ARMv8.4+ instructions encodings to the encoding table
 2020-04-22 20:57:37 +01:00
Lioncash
7ad6981437 constant_propagation_pass: deduplicate common 32/64 bit checking for results in folding functions 
It's common for an folding operation to apply to both the 32-bit and
64-bit variant of the same opcode, which leads to checking which kind of
result we need to store the value as. This moves it to its own function,
so that we don't need to duplicate it in various functions.
 2020-04-22 20:57:37 +01:00
Lioncash
f1a66c37ba a64: Add ARMv8.4+ instructions encodings to the encoding table 
Keeps the table up to date with the ARM specification.
 2020-04-22 20:57:37 +01:00
Lioncash
72daf37208 constant_propagation_pass: Fold Mul32 and Mul64 cases where applicable 
Multiplication operations can currently be folded if:

1. Both arguments are known constant values
2. Either operand is zero (in which case the result is also zero)
3. Either operand is one (in which case the result is the non-one
operand).
 2020-04-22 20:57:37 +01:00
Lioncash
43b2eb4688 constant_propagation_pass: Fold SignExtend{Type}ToLong opcodes if possible 2020-04-22 20:57:37 +01:00
Lioncash
2da2cf9058 constant_propagation_pass: Fold SignExtend{Type}ToWord opcodes if possible 2020-04-22 20:57:37 +01:00
Lioncash
0583d401e3 ir/value: Add IsSignedImmediate() and IsUnsignedImmediate() functions to Value's interface 
This allows testing against arbitrary values while also simultaneously
eliminating the need to check IsImmediate() all the time in expressions.
 2020-04-22 20:57:37 +01:00
Lioncash
c42f6ea184 constant_propagation_pass: Fold ZeroExtend{Type}ToLong opcodes if possible 
These are equivalent to the ZeroExtendXToWord variants, so we can
trivially do this as well.
 2020-04-22 20:57:37 +01:00
Lioncash
e3258e8525 ir/value: Add a GetImmediateAsS64() function 
Provides a signed analogue to GetImmediateAsU64() for consistency with
both integral classes when it comes to signed/unsigned..
 2020-04-22 20:57:37 +01:00
Lioncash
2274214ff0 constant_propagation_pass: Combine zero-extension folding code into its own function 
Separates the behavior from the actual switch statement and gets rid of
duplication, now that we can use the general GetImmediateAsU64()
function.
 2020-04-22 20:57:37 +01:00
Lioncash
4a3c064b15 ir/value: Add an IsZero() member function to Value's interface 
By far, one of the most common things to check for is whether or not a
value is zero, as it typically allows folding away unnecesary
operations (other close contenders that can help with eliding operations  are 1 and -1).

So instead of requiring a check for an immediate and then actually
retrieving the integral value and checking it, we can wrap it within a
function to make it more convenient.
 2020-04-22 20:57:37 +01:00
Merry
c649f11c0a Merge pull request #401 from lioncash/folding 
constant_propagation_pass: Fold &, |, ^, and ~ operations where applicable
 2020-04-22 20:56:01 +01:00
MerryMage
2524d536b0 A32/ir_emitter: Bugfix: ExceptionRaised was producing incorrect PC 
Use actual PC and not pipelined PC.
 2020-04-22 20:56:01 +01:00
Lioncash
c09f4cf28e constant_propagation_pass: Fold NOT operations 2020-04-22 20:55:50 +01:00
Lioncash
d69fceec55 value: Move ImmediateToU64() to be a part of Value's interface 
This'll make it slightly nicer to do basic constant folding for 32-bit
and 64-bit variants of the same IR opcode type. By that, I mean it's
possible to inspect immediate values without a bunch of conditional
checks beforehand to verify that it's possible to call GetU32() or
GetU64, etc.
 2020-04-22 20:55:50 +01:00
Lioncash
8013548bbb constant_propagation_pass: Fold OR operations 2020-04-22 20:55:50 +01:00
MerryMage
ca603c1215 reg_alloc: Emit AVX instructions where able 
Smaller codesize.
 2020-04-22 20:55:50 +01:00
Lioncash
898d096e39 constant_propagation_pass: Fold AND operations 2020-04-22 20:55:50 +01:00
MerryMage
e2358af5ef abi: Emit AVX instructions where able 
Smaller codesize.
 2020-04-22 20:55:50 +01:00
Lioncash
f40fcda1f6 ir/value: Add member function to check whether or not all bits of a contained value are set 
This is useful when we wish to know if a contained value is something
like 0xFFFFFFFF, as this helps perform constant folding. For example the
operation: x & 0xFFFFFFFF can be folded to just x in the 32-bit case.
 2020-04-22 20:55:50 +01:00
MerryMage
7c0378f56d a64_exclusive_monitor: Loosen memory ordering requirements 
It is not necessary to be as strict as it was.
 2020-04-22 20:55:50 +01:00
Lioncash
0ea99b7d59 constant_propagation_pass: Fold EOR operations 
It's possible to fold cases of exclusive OR operations if they can be
known to be an identity operation, or if both operands happen to be known
immediates, in which case we can just store the result of the
exclusive-OR directly.
 2020-04-22 20:55:50 +01:00
MerryMage
f0920c0ded Fix VShift terminology 
An arithmetic shift is by definition a signed shift, and a logical shift is by definition an unsigned shift.

- Rename VectorLogicalVShiftS* -> VectorArithmeticVShift*
- Rename VectorLogicalVShiftU* -> VectorLogicalVShift*
 2020-04-22 20:55:50 +01:00
MerryMage
b51dae790d emit_x64_vector: AVX512 implementation of EmitVectorLogicalVShiftS16 2020-04-22 20:55:50 +01:00
MerryMage
bd47f2ca8f emit_x64_vector: AVX512 implementation of EmitVectorLogicalVShiftS64 2020-04-22 20:55:50 +01:00
MerryMage
3bf183d7e8 emit_x64_vector: AVX2 implementation of EmitVectorLogicalVShiftS32 2020-04-22 20:55:50 +01:00
MerryMage
94f9d402eb emit_x64_vector: AVX512 implementation of EmitVectorLogicalVShiftU16() 2020-04-22 20:55:50 +01:00
MerryMage
6d9639e3b0 emit_x64_vector: AVX2 implementation of EmitVectorLogicalVShiftU64() 2020-04-22 20:55:50 +01:00
MerryMage
bbc066a266 emit_x64_vector: AVX2 implementation of EmitVectorLogicalVShiftU32() 2020-04-22 20:55:50 +01:00
Lioncash
da2e7fad87 emit_x64_vector: SSSE3 variant of EmitVectorCountLeadingZeros8() 
pshufb lyfe
 2020-04-22 20:55:50 +01:00
VelocityRa
c30b8dbe99 decoders: Cast to correctly-sized type before shifting 
Fixes decoding for 64-bit instructions

Does not help/apply to any currently supported ARM versions (since
all are 32-bit length or below), it's for future-proofing should
such an arch be supported.
 2020-04-22 20:55:50 +01:00
MerryMage
238f2f2cd0 a64_emit_x64: Lowercase PAGE_SIZE 
PAGE_SIZE is defined as a macro by musl.
 2020-04-22 20:55:50 +01:00