more wrapping

Author: tgross35

crates/libm-test/src/gen/case_list.rs

@@ -18,7 +18,6 @@ pub struct TestCase<Op: MathOp> {
 }
 
 impl<Op: MathOp> TestCase<Op> {
-    #[expect(dead_code)]
     fn append_inputs(v: &mut Vec<Self>, l: &[Op::RustArgs]) {
         v.extend(l.iter().copied().map(|input| Self { input, output: None }));
     }
@@ -430,18 +429,13 @@ fn frexpf_cases() -> Vec<TestCase<op::frexpf::Routine>> {
 
 fn hypot_cases() -> Vec<TestCase<op::hypot::Routine>> {
     let mut v = vec![];
-    TestCase::append_pairs(
+    TestCase::append_inputs(
         &mut v,
         &[
             // Cases that can overflow exponent if wrapping arithmetic is not used
-            (
-                (hf64!("-0x1.800f800f80100p+1023"), hf64!("0x1.8354835473720p+996")),
-                Some(hf64!("0x1.800f800f80100p+1023")),
-            ),
-            (
-                (hf64!("0x1.201b201b201c0p+0"), hf64!("0x1.b028b028b02a0p-1")),
-                Some(hf64!("0x1.6821e821e8230p+0")),
-            ),
+            (hf64!("-0x1.800f800f80100p+1023"), hf64!("0x1.8354835473720p+996")),
+            (hf64!("0x1.201b201b201c0p+0"), hf64!("0x1.b028b028b02a0p-1")),
+            (hf64!("-0x1.e538e538e564p+980"), hf64!("-0x1.c4dfc4dfc508p+983")),
         ],
     );
     v

src/math/hypot.rs

@@ -190,7 +190,7 @@ fn as_hypot_hard(x: f64, y: f64, flag: FExcept) -> f64 {
         cold_path();
         let lm2: u128 = (lm as u128) * (lm as u128);
         ls *= 2;
-        m2 += (lm2 >> -ls) as u64;
+        m2 = m2.wrapping_add((lm2 >> -ls) as u64);
         m2 |= ((lm2 << (128 + ls)) != 0) as u64;
     }