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| author | Ralf Jung <post@ralfj.de> | 2024-08-16 23:08:29 +0200 |
|---|---|---|
| committer | Ralf Jung <post@ralfj.de> | 2024-08-17 10:26:53 +0200 |
| commit | 53e1a2ee46cbcf84a61464bf62d9543be2c1ce8b (patch) | |
| tree | 10a9a614d84b45fb3811ff5e7fbba911d5f83619 | |
| parent | 368a4c6808c49baf5e03f9debeff3d53a013e968 (diff) | |
| download | rust-53e1a2ee46cbcf84a61464bf62d9543be2c1ce8b.tar.gz rust-53e1a2ee46cbcf84a61464bf62d9543be2c1ce8b.zip | |
disable problematic float-conv tests in i586 targets
also fix typo in const-float-bits-conv
| -rw-r--r-- | tests/ui/consts/const-float-bits-conv.rs | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/tests/ui/consts/const-float-bits-conv.rs b/tests/ui/consts/const-float-bits-conv.rs index 74df9013947..aad750c4c97 100644 --- a/tests/ui/consts/const-float-bits-conv.rs +++ b/tests/ui/consts/const-float-bits-conv.rs @@ -23,6 +23,11 @@ macro_rules! const_assert { }; } +fn has_broken_floats() -> bool { + // i586 targets are broken due to <https://github.com/rust-lang/rust/issues/114479>. + std::env::var("TARGET").is_ok_and(|v| v.contains("i586")) +} + fn f32() { const_assert!((1f32).to_bits(), 0x3f800000); const_assert!(u32::from_be_bytes(1f32.to_be_bytes()), 0x3f800000); @@ -41,14 +46,15 @@ fn f32() { // Check that NaNs roundtrip their bits regardless of signalingness // 0xA is 0b1010; 0x5 is 0b0101 -- so these two together clobbers all the mantissa bits - // ...actually, let's just check that these break. :D const MASKED_NAN1: u32 = f32::NAN.to_bits() ^ 0x002A_AAAA; const MASKED_NAN2: u32 = f32::NAN.to_bits() ^ 0x0055_5555; const_assert!(f32::from_bits(MASKED_NAN1).is_nan()); - const_assert!(f32::from_bits(MASKED_NAN1).is_nan()); + const_assert!(f32::from_bits(MASKED_NAN2).is_nan()); const_assert!(f32::from_bits(MASKED_NAN1).to_bits(), MASKED_NAN1); - const_assert!(f32::from_bits(MASKED_NAN2).to_bits(), MASKED_NAN2); + if !has_broken_floats() { + const_assert!(f32::from_bits(MASKED_NAN2).to_bits(), MASKED_NAN2); + } } fn f64() { @@ -69,14 +75,15 @@ fn f64() { // Check that NaNs roundtrip their bits regardless of signalingness // 0xA is 0b1010; 0x5 is 0b0101 -- so these two together clobbers all the mantissa bits - // ...actually, let's just check that these break. :D const MASKED_NAN1: u64 = f64::NAN.to_bits() ^ 0x000A_AAAA_AAAA_AAAA; const MASKED_NAN2: u64 = f64::NAN.to_bits() ^ 0x0005_5555_5555_5555; const_assert!(f64::from_bits(MASKED_NAN1).is_nan()); - const_assert!(f64::from_bits(MASKED_NAN1).is_nan()); + const_assert!(f64::from_bits(MASKED_NAN2).is_nan()); const_assert!(f64::from_bits(MASKED_NAN1).to_bits(), MASKED_NAN1); - const_assert!(f64::from_bits(MASKED_NAN2).to_bits(), MASKED_NAN2); + if !has_broken_floats() { + const_assert!(f64::from_bits(MASKED_NAN2).to_bits(), MASKED_NAN2); + } } fn main() { |