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fix min/max NaN behavior

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This commit is contained in:
Chris Fallin 2023-02-23 20:50:04 -08:00
parent e73ce71519
commit 95b04005d4
1 changed files with 33 additions and 4 deletions
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37
src/interp.rs
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@ -575,10 +575,10 @@ pub fn const_eval(
(f32::from_bits(*a) / f32::from_bits(*b)).to_bits(),
)),
(Operator::F32Min, [ConstVal::F32(a), ConstVal::F32(b)]) => Some(ConstVal::F32(
f32::min(f32::from_bits(*a), f32::from_bits(*b)).to_bits(),
f32_min(f32::from_bits(*a), f32::from_bits(*b)).to_bits(),
)),
(Operator::F32Max, [ConstVal::F32(a), ConstVal::F32(b)]) => Some(ConstVal::F32(
f32::max(f32::from_bits(*a), f32::from_bits(*b)).to_bits(),
f32_max(f32::from_bits(*a), f32::from_bits(*b)).to_bits(),
)),
(Operator::F32Copysign, [ConstVal::F32(a), ConstVal::F32(b)]) => Some(ConstVal::F32(
f32::copysign(f32::from_bits(*a), f32::from_bits(*b)).to_bits(),
@ -618,10 +618,10 @@ pub fn const_eval(
(f64::from_bits(*a) / f64::from_bits(*b)).to_bits(),
)),
(Operator::F64Min, [ConstVal::F64(a), ConstVal::F64(b)]) => Some(ConstVal::F64(
f64::min(f64::from_bits(*a), f64::from_bits(*b)).to_bits(),
f64_min(f64::from_bits(*a), f64::from_bits(*b)).to_bits(),
)),
(Operator::F64Max, [ConstVal::F64(a), ConstVal::F64(b)]) => Some(ConstVal::F64(
f64::max(f64::from_bits(*a), f64::from_bits(*b)).to_bits(),
f64_max(f64::from_bits(*a), f64::from_bits(*b)).to_bits(),
)),
(Operator::F64Copysign, [ConstVal::F64(a), ConstVal::F64(b)]) => Some(ConstVal::F64(
f64::copysign(f64::from_bits(*a), f64::from_bits(*b)).to_bits(),
@ -1024,3 +1024,32 @@ pub(crate) fn write_u64(mem: &mut InterpMemory, addr: u32, data: u64) {
let addr = addr as usize;
mem.data[addr..(addr + 8)].copy_from_slice(&data.to_le_bytes()[..]);
}
fn f32_min(a: f32, b: f32) -> f32 {
if a.is_nan() || b.is_nan() {
f32::NAN
} else {
f32::min(a, b)
}
}
fn f32_max(a: f32, b: f32) -> f32 {
if a.is_nan() || b.is_nan() {
f32::NAN
} else {
f32::max(a, b)
}
}
fn f64_min(a: f64, b: f64) -> f64 {
if a.is_nan() || b.is_nan() {
f64::NAN
} else {
f64::min(a, b)
}
}
fn f64_max(a: f64, b: f64) -> f64 {
if a.is_nan() || b.is_nan() {
f64::NAN
} else {
f64::max(a, b)
}
}