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252 commits

Author SHA1 Message Date
Lioncash
d29582a0e1 A32: Fuzz instructions using unicorn 
While skyeye was OK previously, now that we have an AArch64 backend,
this also means that we eventually have to support the AArch32
counterpart to it. Unfortunately, SkyEye is only compatible up to
ARMv6K, so we woud need to do a lot of work to bring the interpreter up
to speed with things to even begin testing new instruction
implementations.

For the AArch64 side of things, we already use Unicorn, so we can toss
out SkyEye in favor of it instead.
 2020-04-22 21:02:45 +01:00
Lioncash
9faed40a34 tests/a32/testenv: Make A32TestEnv's code_mem member a std::vector 
Makes the data member consistent with the A64 test environment.
 2020-04-22 20:58:10 +01:00
Lioncash
2e2176e1c5 tests/unicorn_emu: Add getters and setters for PC/SP 
Makes the interface consistent with the A64Unicorn class.
 2020-04-22 20:58:09 +01:00
Lioncash
da5dd3ff66 tests/A32/fuzz_arm: Remove unused Unix-specific include 
This was introduced within 6f6f60c61b,
however, the relevant code that it was used with has since been removed,
making the include unnecessary.
 2020-04-22 20:57:38 +01:00
Merry
07759af694 Merge pull request #422 from lioncash/truncate 
a32_unicorn: Silence a truncation warning within UnmappedMemoryHook()
 2020-04-22 20:57:38 +01:00
Lioncash
eadc07e269 a32_unicorn: Silence a truncation warning within UnmappedMemoryHook() 
MemoryRead8() takes a u32, but we were passing the result of a

u32 + size_t operation, which is 64-bit on 64-bit platforms. This
results in a truncation warning
 2020-04-22 20:57:38 +01:00
Lioncash
586dffb356 tests/.../vfp_helper: Amend use of the comma operator 
Makes the lines of code slightly nicer to read
 2020-04-22 20:57:38 +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
Merry
a3d640b0c1 Merge pull request #416 from lioncash/space 
dynarmic_tests: Remove inconsistent spacing
 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
Lioncash
2ce7e579d2 dynarmic_tests: Remove inconsistent spacing 
Makes the changed code more consistent with the surrounding code.
 2020-04-22 20:57:37 +01:00
Lioncash
2e62cfc89d fuzz_util: Simplify result return in InstructionGenerator's Generate() function 
This can just be a simple direct return without a separated declaration
and assignment.
 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
MerryMage
06b31448aa emit_x64_vector: Changes to VectorSignedSaturatedDoublingMultiply 
* Return both the upper and lower parts of the multiply if required
* SSE2 does not support the pmuldq instruction, do sign correction to an unsigned result instead
* Improve port utilisation where possible (punpck instructions were a bottleneck)
 2020-04-22 20:55:06 +01:00
MerryMage
3caeb62ef1 emit_x64_floating_point: Hardware FMA implementation of FPRSqrtStepFused 2020-04-22 20:55:06 +01:00
MerryMage
b8daa4feac simd_two_register_misc: FNEG (vector) with Q == 0 had dirty upper 2020-04-22 20:55:05 +01:00
Lioncash
134bb02e19 ir/value: Replace includes with forward declarations 
enum classes are still considered complete types when forward declared
(as the compiler knows the exact size of the type from the declaration
alone). The only difference in this case being that the members of the
enum class aren't visible. Given we don't use the members within this
header in any way, we can simply forward declare them here and remove
the inclusions.
 2020-04-22 20:55:05 +01:00
MerryMage
9b65100660 A64: Implement FastDispatchHint 2020-04-22 20:53:46 +01:00
MerryMage
f96c43d422 A32: Implement FastDispatchHint 2020-04-22 20:53:46 +01:00
MerryMage
a12854857b A32: Add define_unpredictable_behaviour option 2020-04-22 20:53:46 +01:00
MerryMage
f73104633b a32_emit_x64: Fix incorrect BMI2 implementation for SetCpsr 
* The MSB for each byte in cpsr_ge were not being appropriately set.
* We also expand test coverage to test this case.
* We fix the disassembly of the MSR (imm) and MSR (reg) instructions as well.
 2020-04-22 20:53:46 +01:00
MerryMage
656ceff225 emit_x64_floating_point: Fix smallest normal check in EmitFPMulAdd 2020-04-22 20:53:45 +01:00
MerryMage
e60d6c0d20 fp/info: Incorrect point_position in FPValue 2020-04-22 20:53:45 +01:00
MerryMage
d1d6f4feb5 system: Implement MRS CNTFRQ_EL0 2020-04-22 20:53:45 +01:00
MerryMage
f91a9f18cd A32/testenv: Add missing headers 2020-04-22 20:53:45 +01:00
MerryMage
c96c534615 fuzz_with_unicorn: Split utility functions into fuzz_util 2020-04-22 20:46:23 +01:00
MerryMage
35c758f211 tests: Refactor unicorn_emu to allow for A32 unicorn 2020-04-22 20:46:23 +01:00
MerryMage
cd12a1862e fuzz_with_unicorn: Remove FCVT_float from ignore list 2020-04-22 20:46:23 +01:00
MerryMage
a8b938ef32 fuzz_with_unicorn: Randomize SP 2020-04-22 20:46:23 +01:00
MerryMage
9a7d75be3b fuzz_with_unicorn: Randomize PC 2020-04-22 20:46:23 +01:00
MerryMage
ff84740ea6 testenv: Make code_mem mobile 2020-04-22 20:46:23 +01:00
MerryMage
63eb4e0f31 fuzz_with_unicorn: Randomize FPCR.AHP and FPCR.FZ16 2020-04-22 20:46:23 +01:00
MerryMage
bb93353f94 emit_x64_vector_floating_point: Correct FMA in FTZ mode 
x64 rounds before flushing to zero
AArch64 rounds after flushing to zero

This difference of behaviour is noticable if something would round to a smallest normalized number
 2020-04-22 20:46:23 +01:00
MerryMage
822fd4a875 backend_x64: Fix FPVectorMulAdd and FPMulAdd NaN handling with denormals 
Denormals should be treated as zero in NaN handler
 2020-04-22 20:46:23 +01:00
MerryMage
381821eda3 a32/fuzz_arm: Disable vfp tests 2020-04-22 20:46:23 +01:00
MerryMage
868ec44f30 fuzz_with_unicorn: Randomize FPCR.FZ 2020-04-22 20:46:23 +01:00
MerryMage
2b538b471f fuzz_with_unicorn: Extract RandomFpcr function 
Deduplicate randomization of fpcr and make use of FP::FPCR
 2020-04-22 20:46:23 +01:00
MerryMage
f2344f4c87 fuzz_with_unicorn: Randomize FPCR.DN 2020-04-22 20:46:23 +01:00
MerryMage
7a673a8a43 fp: Change FPUnpacked to a normalized representation 
Having a known position for the highest set bit makes writing algorithms easier
 2020-04-22 20:46:22 +01:00
MerryMage
680395a803 fuzz_with_unicorn: Disable testing of FDIV 2020-04-22 20:46:22 +01:00
MerryMage
f020dbe4ed A64: Implement SQXTUN 2020-04-22 20:46:22 +01:00
MerryMage
a04553eb91 tests: Print cpu info 2020-04-22 20:46:21 +01:00
MerryMage
76b07d6646 u128: StickyLogicalShiftRight requires special-casing for amount == 64 
In this case (128 - amount) == 64, and this invokes undefined behaviour
 2020-04-22 20:46:21 +01:00
MerryMage
0ce11b7b15 emit_x64_floating_point: Implement accurate fallback for FPMulAdd{32,64} 2020-04-22 20:46:21 +01:00
MerryMage
f17cd6f2c5 unpacked: Use ResidualErrorOnRightShift in FPRoundBase 
Fixes a bug relating to exponents that are severely out of range.
 2020-04-22 20:46:21 +01:00
MerryMage
805428e35e fp: Remove MantissaT 2020-04-22 20:46:21 +01:00
MerryMage
55eaa16615 a64_emit_x64: Ensure host has updated ticks in EmitA64GetCNTPCT 
Discovered by @Subv.
Fixes incomplete fix begun in 5a91c94dca47c9702dee20fbd5ae1f4c07eef9df.
That fix fails to take into account that LinkBlock doesn't update ticks until there
are no remaining ticks to be executed.

Test added to confirm fix.
 2020-04-22 20:46:21 +01:00
MerryMage
edd795e991 a64_emit_x64: Fix stack misalignment on Windows for 128-bit exclusive writes 
Discovered by @Subv.
Includes a test to ensure this codepath is exercised on Windows.
 2020-04-22 20:46:21 +01:00
Lioncash
1dc1e3dcd8 fp: Use forward declarations where applicable 
Minimizes the amount of files that need to be rebuilt if the headers
ever change.
 2020-04-22 20:46:21 +01:00
Lioncash
5b39e8dcf8 tests: Silence warnings in skyeye code 
Gets rid of warning noise when compiling the tests.
 2020-04-22 20:46:21 +01:00