Emit predicated version of the MUL instruction for Sve.Multiply()

[SwapnilGaikwad]

Fixes: #105736

Using the predicated version as the unpredicated MUL is SVE2 only

@a74nh @kunalspathak @dotnet/arm64-contrib

[SwapnilGaikwad]

All stress tests are passing now

===================Running default===================
------------------- {} -------------------
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_float() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_double() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_sbyte() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_short() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_int() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_long() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_byte() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_ushort() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_uint() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_Multiply_ulong() : 31
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_MultiplyAdd_sbyte() : 37
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_MultiplyAdd_short() : 37
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_MultiplyAdd_int() : 37
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_MultiplyAdd_long() : 37
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_MultiplyAdd_byte() : 37
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_MultiplyAdd_ushort() : 37
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_MultiplyAdd_uint() : 37
Passed test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_MultiplyAdd_ulong() : 37
===================Running jitstress===================
------------------- {'JitMinOpts': '1'} -------------------
------------------- {'JitStress': '1'} -------------------
------------------- {'JitStress': '2'} -------------------
------------------- {'JitStress': '1', 'TieredCompilation': '1'} -------------------
------------------- {'JitStress': '2', 'TieredCompilation': '1'} -------------------
------------------- {'TailcallStress': '1'} -------------------
------------------- {'ReadyToRun': '0'} -------------------
===================Running jitstressregs===================
------------------- {'JitStressRegs': '1'} -------------------
------------------- {'JitStressRegs': '2'} -------------------
------------------- {'JitStressRegs': '3'} -------------------
------------------- {'JitStressRegs': '4'} -------------------
------------------- {'JitStressRegs': '8'} -------------------
------------------- {'JitStressRegs': '0x10'} -------------------
------------------- {'JitStressRegs': '0x80'} -------------------
------------------- {'JitStressRegs': '0x1000'} -------------------
------------------- {'JitStressRegs': '0x2000'} -------------------
===================Running jitstress2-jitstressregs===================
------------------- {'JitStress': '2', 'JitStressRegs': '1'} -------------------
------------------- {'JitStress': '2', 'JitStressRegs': '2'} -------------------
------------------- {'JitStress': '2', 'JitStressRegs': '3'} -------------------
------------------- {'JitStress': '2', 'JitStressRegs': '4'} -------------------
------------------- {'JitStress': '2', 'JitStressRegs': '8'} -------------------
------------------- {'JitStress': '2', 'JitStressRegs': '0x10'} -------------------
------------------- {'JitStress': '2', 'JitStressRegs': '0x80'} -------------------
------------------- {'JitStress': '2', 'JitStressRegs': '0x1000'} -------------------
------------------- {'JitStress': '2', 'JitStressRegs': '0x2000'} -------------------

[SwapnilGaikwad]

@TIHan @amanasifkhalid

[amanasifkhalid]

LGTM, thanks!

@a74nh in #105736, were you able to run all the SVE tests after the Multiply ones on your machine? If not, it might be a good idea to see if there are any other SVE2 instructions sneaking in.

[a74nh]

LGTM, thanks!

@a74nh in #105736, were you able to run all the SVE tests after the Multiply ones on your machine? If not, it might be a good idea to see if there are any other SVE2 instructions sneaking in.

There's also #105799 but everything else looks good.