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| author | Trevor Gross <tmgross@umich.edu> | 2025-06-30 16:53:21 -0500 |
|---|---|---|
| committer | Trevor Gross <tmgross@umich.edu> | 2025-07-02 01:18:54 -0500 |
| commit | be35d37d8b6c206576ff3cdcad956d921b47cc6b (patch) | |
| tree | caf31c698ab2f77edda0fa4be0f290c6fb0ad7df /library/compiler-builtins/builtins-test | |
| parent | 6c4221818e00828ecf54b395475477f49d0ea716 (diff) | |
| download | rust-be35d37d8b6c206576ff3cdcad956d921b47cc6b.tar.gz rust-be35d37d8b6c206576ff3cdcad956d921b47cc6b.zip | |
Use the compiler to determine whether or not to enable `f16` and `f128`
Currently we whether or not to build and test `f16` and `f128` support
mostly based on the target triple. This isn't always accurate, however,
since support also varies by backend and the backend version.
Since recently, `rustc` is aware of this with the unstable config option
`target_has_reliable_{f16,f128}`, which better represents when the types
are actually expected to be available and usable. Switch our
compiler-builtins and libm configuration to use this by probing `rustc`
for the target's settings.
A few small `cfg` fixes are needed with this.
Diffstat (limited to 'library/compiler-builtins/builtins-test')
4 files changed, 6 insertions, 5 deletions
diff --git a/library/compiler-builtins/builtins-test/benches/float_cmp.rs b/library/compiler-builtins/builtins-test/benches/float_cmp.rs index 87a89efb5a4..da29b5d3132 100644 --- a/library/compiler-builtins/builtins-test/benches/float_cmp.rs +++ b/library/compiler-builtins/builtins-test/benches/float_cmp.rs @@ -177,6 +177,7 @@ float_bench! { ], } +#[cfg(f128_enabled)] float_bench! { name: cmp_f128_gt, sig: (a: f128, b: f128) -> CmpResult, @@ -189,6 +190,7 @@ float_bench! { asm: [] } +#[cfg(f128_enabled)] float_bench! { name: cmp_f128_unord, sig: (a: f128, b: f128) -> CmpResult, diff --git a/library/compiler-builtins/builtins-test/build.rs b/library/compiler-builtins/builtins-test/build.rs index e8f4eb4dd22..5b2dcd12ef8 100644 --- a/library/compiler-builtins/builtins-test/build.rs +++ b/library/compiler-builtins/builtins-test/build.rs @@ -116,5 +116,4 @@ fn main() { } builtins_configure::configure_aliases(&target); - builtins_configure::configure_f16_f128(&target); } diff --git a/library/compiler-builtins/builtins-test/tests/conv.rs b/library/compiler-builtins/builtins-test/tests/conv.rs index 491915d9bb1..7d729364fae 100644 --- a/library/compiler-builtins/builtins-test/tests/conv.rs +++ b/library/compiler-builtins/builtins-test/tests/conv.rs @@ -118,7 +118,7 @@ mod i_to_f { i128, __floattidf; } - #[cfg(not(feature = "no-f16-f128"))] + #[cfg(f128_enabled)] #[cfg(not(any(target_arch = "powerpc", target_arch = "powerpc64")))] i_to_f! { f128, Quad, not(feature = "no-sys-f128-int-convert"), u32, __floatunsitf; @@ -129,7 +129,7 @@ mod i_to_f { i128, __floattitf; } - #[cfg(not(feature = "no-f16-f128"))] + #[cfg(f128_enabled)] #[cfg(any(target_arch = "powerpc", target_arch = "powerpc64"))] i_to_f! { f128, Quad, not(feature = "no-sys-f128-int-convert"), u32, __floatunsikf; diff --git a/library/compiler-builtins/builtins-test/tests/div_rem.rs b/library/compiler-builtins/builtins-test/tests/div_rem.rs index 5ae653cc90c..e8327f9b4b8 100644 --- a/library/compiler-builtins/builtins-test/tests/div_rem.rs +++ b/library/compiler-builtins/builtins-test/tests/div_rem.rs @@ -147,7 +147,7 @@ mod float_div { f64, __divdf3, Double, all(); } - #[cfg(not(feature = "no-f16-f128"))] + #[cfg(f128_enabled)] #[cfg(not(any(target_arch = "powerpc", target_arch = "powerpc64")))] float! { f128, __divtf3, Quad, @@ -156,7 +156,7 @@ mod float_div { not(any(feature = "no-sys-f128", all(target_arch = "aarch64", target_os = "linux"))); } - #[cfg(not(feature = "no-f16-f128"))] + #[cfg(f128_enabled)] #[cfg(any(target_arch = "powerpc", target_arch = "powerpc64"))] float! { f128, __divkf3, Quad, not(feature = "no-sys-f128"); |