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Fix typo in performance guide #314

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Jan 3, 2021
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Fix typo in performance guide #314

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6 changes: 3 additions & 3 deletions perf-guide/src/target-feature/rustflags.md
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Expand Up @@ -15,7 +15,7 @@ There are two flags which can be used to enable specific vector extensions:
- Provides the compiler with a comma-separated set of instruction extensions
to enable.

**Example**: Use `-C target-features=+sse3,+avx` to enable generating instructions
**Example**: Use `-C target-feature=+sse3,+avx` to enable generating instructions
for [Streaming SIMD Extensions 3](https://en.wikipedia.org/wiki/SSE3) and
[Advanced Vector Extensions](https://en.wikipedia.org/wiki/Advanced_Vector_Extensions).

Expand All @@ -33,9 +33,9 @@ There are two flags which can be used to enable specific vector extensions:

- Note that all CPU features are independent, and will have to be enabled individually.

**Example**: Setting `-C target-features=+avx2` will _not_ enable `fma`, even though
**Example**: Setting `-C target-feature=+avx2` will _not_ enable `fma`, even though
all CPUs which support AVX2 also support FMA. To enable both, one has to use
`-C target-features=+avx2,+fma`
`-C target-feature=+avx2,+fma`

- Some features also depend on other features, which need to be enabled for the
target instructions to be generated.
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