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1579 commits

Author SHA1 Message Date
Merry
13f421c27d Merge pull request #473 from lioncash/sqshlu 
A64: Implement SQSHLU
 2020-04-22 21:01:44 +01:00
Merry
d7da53a74b Merge pull request #472 from lioncash/exception 
general: Mark hash functions as noexcept
 2020-04-22 21:01:44 +01:00
Lioncash
9dcc04e106 A64: Implement SQSHLU's scalar variant 2020-04-22 21:01:44 +01:00
Merry
b91c6c8bae Merge pull request #471 from lioncash/sqrdmulh 
A64: Implement SQRDMULH's scalar vector variant
 2020-04-22 21:01:44 +01:00
Lioncash
2d59d10ac8 A64: Implement SQSHLU's vector variant 
The vector shift by immediate category is now fully implemented.
 2020-04-22 21:01:44 +01:00
Merry
b5e25959d9 Merge pull request #470 from lioncash/assert 
general: Replace unreachable-imitating assertions with UNREACHABLE()
 2020-04-22 21:01:44 +01:00
Lioncash
a4cadf1cd9 frontend/ir_emitter: Add opcodes for signed saturated left shifts with unsigned saturation 2020-04-22 21:01:44 +01:00
Lioncash
7bb5440507 general: Mark hash functions as noexcept 
Generally hash functions shouldn't throw exceptions. It's also a
requirement for the standard library-provided hash functions to not
throw exceptions.

An exception to this rule is made for user-defined specializations,
however we can just be consistent with the standard library on this to
allow it to play nicer with it.

While we're at it, we can also make the std::less specializations
noexcpet as well, since they also can't throw.
 2020-04-22 21:01:43 +01:00
Lioncash
3b46b4a37d A64: Implement SQRDMULH's scalar vector variant 
Implements the scalar variant in terms of the vector variant for the
time being.
 2020-04-22 21:01:43 +01:00
Lioncash
fe95575b95 general: Replace unreachable-imitating assertions with UNREACHABLE() 
We can just use the self-documenting assertion for indicating
unreachable paths, instead of manually passing false and providing a
message.
 2020-04-22 21:01:43 +01:00
Merry
4a3d808354 Merge pull request #468 from lioncash/const 
ir_opt: Mark locals as const where applicable
 2020-04-22 21:01:43 +01:00
Lioncash
64de80839e A64/impl: Reorganize peculiar void use in V_scalar 
To a reader this might look particularly strange, given the function
itself has a void return value, but this is actually valid, given the
function in the return statement also has a void return value.

This instead alters it to be a little easier to parse and potentially be
a little less confusing at a glance.
 2020-04-22 21:01:43 +01:00
Merry
9a4e3b24e4 Merge pull request #467 from lioncash/reserved 
A64: Handle reserved instruction cases more specifically where applicable
 2020-04-22 21:01:43 +01:00
Merry
0b794cbcea Merge pull request #466 from lioncash/fcmla 
A64: Implement FCMLA's indexed element variant
 2020-04-22 21:01:43 +01:00
Merry
994349d154 Merge pull request #465 from neobrain/master 
CMakeLists: Allow importing dynarmic build trees into other CMake projects
 2020-04-22 21:01:43 +01:00
Lioncash
cfd7513a7d ir_opt/verification_pass: Mark locals as const where applicable 
Makes our immutable state a little more explicit.
 2020-04-22 21:01:40 +01:00
Lioncash
8309d49588 A64: Handle reserved instruction cases more specifically where applicable 
These are cases that are defined as reserved within the ARMv8 reference
manual, so we can handle them as such instead of as unallocated
encodings.

While this doesn't actually change emulated behavior, it does at least
allow the JIT to generate the more appropriate exception.
 2020-04-22 21:00:47 +01:00
Lioncash
6c2c68bce6 A64: Implement FCMLA's indexed element variant 
With this, all of the instructions introduced with ARMv8.3-CompNum have
an implementation.
 2020-04-22 21:00:47 +01:00
Tony Wasserka
7d99a6c00f CMakeLists: Allow importing dynarmic build trees into other CMake projects 2020-04-22 21:00:47 +01:00
Lioncash
1a45f35b9c ir_opt/a64_callback_config_pass: Mark locals as const where applicable 
Makes our immutable state a little more explicit.
 2020-04-22 21:00:47 +01:00
Lioncash
7bc7042104 simd_scalar_shift_by_immediate: Change UnallocatedEncoding() path in SaturatingShiftLeft to ReservedValue() 
Strictly speaking, immh being zero is defined as reserved in the ARMv8
reference manual. This was just an error on my part when introducing the
SQSHL immediate scalar variant.
 2020-04-22 21:00:47 +01:00
Lioncash
dc97977576 ir_opt/a32_get_set_elimination_pass: Mark local variables as const where applicable 
Makes our intended immutable state slightly more explicit.
 2020-04-22 21:00:47 +01:00
Lioncash
b1b4487e4d A64: Implement UQSHL (immediate)'s scalar variant 
Like SQSHL's immediate scalar variant, we can also implement UQSHL's
immediate scalar variant in terms of the vector variant for the time
being.
 2020-04-22 21:00:47 +01:00
Lioncash
3649dc6d9a A64: Implement scalar variant of SQSHL (immediate) 
This can be handled in terms of the vector variant for the time being.
 2020-04-22 21:00:47 +01:00
Lioncash
7d535eaba6 ir_opt/a32_constant_memory_reads_pass: Apply const where applicable to locals 
Makes immutable state just slightly more explicit.
 2020-04-22 21:00:47 +01:00
Lioncash
e1b4ff1068 simd_scalar_shift_by_immediate: Migrate SQSHL implementation to file-scope function 
This will allow it to be reused for the implementation of UQSHL.
 2020-04-22 21:00:47 +01:00
Lioncash
b37279f65c backend/x64/emit_x64_vector: Prevent undefined behavior within VectorSignedSaturatedShiftLeft 
Avoids undefined behavior by potentially left-shifting a signed negative
value.
 2020-04-22 21:00:47 +01:00
Lioncash
46eae8cf2f common/fp/op/FPRecipExponent: Prevent undefined behavior from shifting a negative value 
Due to promotion rules (types < int, even if unsigned, get promoted to
int when arithmetic is performed on them), this is a potential spot for
undefined behavior.
 2020-04-22 21:00:47 +01:00
MerryMage
13e8b7b516 emit_x64_floating_point: F16C implementation of FPSingleToHalf 2020-04-22 20:58:17 +01:00
MerryMage
d32d6fe598 emit_x64_floating_point: F16C implementation of FPHalfToSingle and FPHalfToDouble 2020-04-22 20:58:12 +01:00
MerryMage
a53ba12be2 emit_x64_floating_point: Factor out ConvertRoundingModeToX64Immediate 2020-04-22 20:58:12 +01:00
MerryMage
5a2adc6629 backend/x64: Expose FPCR in EmitContext instead of its subcomponents 2020-04-22 20:58:12 +01:00
Merry
01bb1cdd88 Merge pull request #458 from lioncash/float-op 
A64: Handle half-precision floating point in FABS, FNEG, and scalar FMOV
 2020-04-22 20:58:12 +01:00
Lioncash
28a8b4d210 A64: Handle half-precision floating point in scalar FMOV 
This is simply performing a scalar value transfer between registers
without conversions, so this is trivial to handle as-is.
 2020-04-22 20:58:12 +01:00
Lioncash
d7ac5a664f A64: Handle half-precision floating point in FCVTL 
Like FCVTN, now that we have half-precision floating point conversion
functions available, we can go ahead and use those to eliminate the
interpreter fallback.
 2020-04-22 20:58:12 +01:00
Lioncash
fe84ecb780 A64: Handle half-precision floating point in scalar FABS 
Now that we have the half-precision variant of the opcode added, we can
simply handle the instruction instead of treating it as undefined.
 2020-04-22 20:58:12 +01:00
Lioncash
fac9224d5e A64: Handle half-precision floating point in FCVTN 
Now that we have IR instructions for performing conversions with
half-precision floating point, we can also handle half-precision values
within FCVTN.
 2020-04-22 20:58:12 +01:00
Lioncash
8309ec7a9f frontend/ir_emitter: Add half-precision variant of FPAbs 2020-04-22 20:58:12 +01:00
Lioncash
16de99d3e3 A64: Enable FCVT floating-point conversions for half-precision 
With this, we no longer have to fall back to the interpreter in any of
the FCVT floating-point conversion instructions.
 2020-04-22 20:58:12 +01:00
Lioncash
10abc77fad A64: Handle half-precision floating point in scalar FNEG 
With the half-precision variant of the FPNeg opcode added, we can
utilize it here to emulate the half-precision variant of FNEG.
 2020-04-22 20:58:12 +01:00
Lioncash
e4c259d69f frontend/ir_emitter: Add half->{single, double} and {double, single}->half conversion opcodes 2020-04-22 20:58:12 +01:00
Lioncash
c97efcb978 frontend/ir_emitter: Add half-precision variant of FPNeg 2020-04-22 20:58:12 +01:00
Lioncash
dff5da1063 common/fp/unpacked: Amend behavior of FPUnpackCV 
This is supposed to call FPUnpackBase instead of FPUnpack. This would
result in alternate half-precision representations being misinterpreted
when it comes to dealing with NaNs.
 2020-04-22 20:58:12 +01:00
Merry
f01afc5ae6 Merge pull request #456 from lioncash/mov 
A64: Enable FMOV (general) for half-precision floating point
 2020-04-22 20:58:12 +01:00
Lioncash
03bc2334fe common/fp/op/FPConvert: Amend off-by one in double NaN case in FPConvertNaN 
Avoids potentially clobbering the intended sign bit value during
conversions to double-precision values. The other conversion types are
already properly handled, so those don't need to be addressed.
 2020-04-22 20:58:12 +01:00
Lioncash
c57b146fb2 common/fp/op/FPConvert: Add half-precision instantiations to FPConvert 2020-04-22 20:58:12 +01:00
Merry
c1ce94872d Merge pull request #455 from lioncash/sqrdmulh-scalar 
A64: Implement SQRDMULH and SQDMULL's scalar indexed variants
 2020-04-22 20:58:11 +01:00
Lioncash
25a7256ee1 A64: Enable FMOV (general) for half-precision floating point 
This just transfers values between vector registers and general-purpose
registers with no conversions performed, so this is trivial to add
support for half-precision to.
 2020-04-22 20:58:11 +01:00
Lioncash
97dd3d0596 A64: Implement SQRDMULH's scalar indexed element variant 2020-04-22 20:58:11 +01:00
Lioncash
49b51e34f1 simd_vector_x_indexed_element: Deduplicate index and Vm operand construction 2020-04-22 20:58:11 +01:00