Provide aliasing hint to the compiler

[embg]

Summary: This change results in massive speedups on ProtocolBench. Prod canaries also gave some promising signals.

x86 ProtocolBench

Benchmarks not included below were neutral or only small wins. See pastes for full results.

Before: full results (P1791766582)

CompactProtocol_write_MixedInt                            114.09ns     8.77M
CompactProtocol_write_LargeMixed                          526.47ns     1.90M
CompactProtocol_write_BigListBigInt                        34.63us    28.87K
CompactProtocol_write_BigListMixedInt                     824.45us     1.21K

After: full results (P1791763018)

CompactProtocol_write_MixedInt                             47.03ns    21.26M
CompactProtocol_write_LargeMixed                          491.08ns     2.04M
CompactProtocol_write_BigListBigInt                        20.74us    48.22K
CompactProtocol_write_BigListMixedInt                     330.13us     3.03K

aarch64 ProtocolBench

Benchmarks not included below were neutral or only small wins. See pastes for full results.

Before: full results (P1791766333)

CompactProtocol_write_MixedInt                             56.34ns    17.75M
CompactProtocol_write_BigListByte                          18.49us    54.08K
CompactProtocol_write_BigListBigInt                        24.08us    41.52K
CompactProtocol_write_BigListFloat                         18.45us    54.20K
CompactProtocol_write_BigListDouble                        19.07us    52.43K
CompactProtocol_write_BigListMixed                        185.41us     5.39K
CompactProtocol_write_BigListMixedInt                     479.46us     2.09K
CompactProtocol_write_LargeSetInt                         149.90ms      6.67
CompactProtocol_write_LargeUnorderedMapMixed               22.94ms     43.58
CompactProtocol_write_LargeSortedVecMapMixed               22.56ms     44.33
CompactProtocol_write_NestedMap                           541.29us     1.85K
CompactProtocol_write_SortedVecNestedMap                  548.71us     1.82K

After: full results (P1791763404)

CompactProtocol_write_MixedInt                             30.46ns    32.83M
CompactProtocol_write_BigListByte                           6.26us   159.84K
CompactProtocol_write_BigListBigInt                        19.06us    52.48K
CompactProtocol_write_BigListFloat                          6.25us   160.10K
CompactProtocol_write_BigListDouble                         6.56us   152.39K
CompactProtocol_write_BigListMixed                        173.73us     5.76K
CompactProtocol_write_BigListMixedInt                     229.13us     4.36K
CompactProtocol_write_LargeSetInt                         107.13ms      9.33
CompactProtocol_write_LargeUnorderedMapMixed               18.93ms     52.84
CompactProtocol_write_LargeSortedVecMapMixed               18.68ms     53.54
CompactProtocol_write_NestedMap                           419.08us     2.39K
CompactProtocol_write_SortedVecNestedMap                  412.94us     2.42K

Differential Revision: D73367438

[babysor]

这一整个request是基于tf的，可以改为基于pytorch的吗？github有不少实现，另外注意本repo的taco不是1也不是2，会贴近2一点点

[dasi852852]

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