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| author | Mark Rousskov <mark.simulacrum@gmail.com> | 2021-10-23 12:11:05 -0400 |
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| committer | Mark Rousskov <mark.simulacrum@gmail.com> | 2021-10-23 12:11:05 -0400 |
| commit | 3cd5c95ab0618924d790fcd19f31883e020cc90f (patch) | |
| tree | 22683d93dbd341c6343f21f417fd58271cfedb7a /src/test/codegen/src-hash-algorithm | |
| parent | 514b3877956dc594823106b66c164f8cdbc8b3da (diff) | |
| download | rust-3cd5c95ab0618924d790fcd19f31883e020cc90f.tar.gz rust-3cd5c95ab0618924d790fcd19f31883e020cc90f.zip | |
Specialize HashStable for [u8] slices
Particularly for ctfe-stress-4, the hashing of byte slices as part of the MIR Allocation is quite hot. Previously, we were falling back on byte-by-byte copying of the slice into the SipHash buffer (64 bytes long) before hashing a 64 byte chunk, and then doing that again and again. This should hopefully be an improvement for that code.
Diffstat (limited to 'src/test/codegen/src-hash-algorithm')
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