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be540e6596
powi(2) produces exactly the same native code as x * x
28 lines
1 KiB
Text
28 lines
1 KiB
Text
error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_powi.rs:9:13
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LL | let _ = x.powi(2) + y;
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| ^^^^^^^^^^^^^ help: consider using: `x.mul_add(x, y)`
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= note: `-D clippy::suboptimal-flops` implied by `-D warnings`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_powi.rs:10:13
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LL | let _ = x + y.powi(2);
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| ^^^^^^^^^^^^^ help: consider using: `y.mul_add(y, x)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_powi.rs:11:13
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LL | let _ = (x.powi(2) + y).sqrt();
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| ^^^^^^^^^^^^^^^ help: consider using: `x.mul_add(x, y)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_powi.rs:12:13
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LL | let _ = (x + y.powi(2)).sqrt();
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| ^^^^^^^^^^^^^^^ help: consider using: `y.mul_add(y, x)`
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error: aborting due to 4 previous errors
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