1 files changed, 64 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/floating_point_mul_add.stderr b/src/tools/clippy/tests/ui/floating_point_mul_add.stderr
new file mode 100644
index 000000000..e637bbf90
--- /dev/null
+++ b/src/tools/clippy/tests/ui/floating_point_mul_add.stderr
@@ -0,0 +1,64 @@
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:21:13
+   |
+LL |     let _ = a * b + c;
+   |             ^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
+   |
+   = note: `-D clippy::suboptimal-flops` implied by `-D warnings`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:22:13
+   |
+LL |     let _ = c + a * b;
+   |             ^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:23:13
+   |
+LL |     let _ = a + 2.0 * 4.0;
+   |             ^^^^^^^^^^^^^ help: consider using: `2.0f64.mul_add(4.0, a)`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:24:13
+   |
+LL |     let _ = a + 2. * 4.;
+   |             ^^^^^^^^^^^ help: consider using: `2.0f64.mul_add(4., a)`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:26:13
+   |
+LL |     let _ = (a * b) + c;
+   |             ^^^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:27:13
+   |
+LL |     let _ = c + (a * b);
+   |             ^^^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:28:13
+   |
+LL |     let _ = a * b * c + d;
+   |             ^^^^^^^^^^^^^ help: consider using: `(a * b).mul_add(c, d)`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:30:13
+   |
+LL |     let _ = a.mul_add(b, c) * a.mul_add(b, c) + a.mul_add(b, c) + c;
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `a.mul_add(b, c).mul_add(a.mul_add(b, c), a.mul_add(b, c))`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:31:13
+   |
+LL |     let _ = 1234.567_f64 * 45.67834_f64 + 0.0004_f64;
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `1234.567_f64.mul_add(45.67834_f64, 0.0004_f64)`
+
+error: multiply and add expressions can be calculated more efficiently and accurately
+  --> $DIR/floating_point_mul_add.rs:33:13
+   |
+LL |     let _ = (a * a + b).sqrt();
+   |             ^^^^^^^^^^^ help: consider using: `a.mul_add(a, b)`
+
+error: aborting due to 10 previous errors
+