Commit graph

15 commits

Author SHA1 Message Date
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
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
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
MerryMage
4525209bab tests: Add FABD test 2020-04-22 20:46:21 +01:00
Thomas Guillemard
896cf44f96 A64: Implement REV, REV32, and REV16 (#126) 2020-04-22 20:42:46 +01:00
MerryMage
a0ef6eda19 tests/A64: Move TestEnvironment to own header 2020-04-22 20:42:45 +01:00
MerryMage
2f8d7ae86f tests/a64: Use format constants 2020-04-22 20:42:45 +01:00
MerryMage
cb481a3a48 A64: Implement compare and branch 2020-04-22 20:42:45 +01:00
MerryMage
e8bcf72ee5 A64: PSTATE access and tests 2020-04-22 20:42:45 +01:00
MerryMage
0641445e51 A64: Implement logical 2020-04-22 20:42:45 +01:00
MerryMage
d1cef6ffb0 A64: Implement ADD_shifted 2020-04-22 20:42:44 +01:00
MerryMage
d1eb757f93 A64: Backend framework 2020-04-22 20:42:44 +01:00