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Fix rint and rintf on x87.

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This commit is contained in:
Peter Michael Green 2023-10-05 17:38:44 +00:00
parent 1d8bc07dcc
commit 36e334dfb0
2 changed files with 24 additions and 4 deletions
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14
library/compiler-builtins/libm/src/math/rint.rs
View file

@ -8,9 +8,19 @@ pub fn rint(x: f64) -> f64 {
x
} else {
let ans = if is_positive {
x + one_over_e - one_over_e
#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
let x = force_eval!(x);
let xplusoneovere = x + one_over_e;
#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
let xplusoneovere = force_eval!(xplusoneovere);
xplusoneovere - one_over_e
} else {
x - one_over_e + one_over_e
#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
let x = force_eval!(x);
let xminusoneovere = x - one_over_e;
#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
let xminusoneovere = force_eval!(xminusoneovere);
xminusoneovere + one_over_e
};
if ans == 0.0 {

14
library/compiler-builtins/libm/src/math/rintf.rs
View file

@ -8,9 +8,19 @@ pub fn rintf(x: f32) -> f32 {
x
} else {
let ans = if is_positive {
x + one_over_e - one_over_e
#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
let x = force_eval!(x);
let xplusoneovere = x + one_over_e;
#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
let xplusoneovere = force_eval!(xplusoneovere);
xplusoneovere - one_over_e
} else {
x - one_over_e + one_over_e
#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
let x = force_eval!(x);
let xminusoneovere = x - one_over_e;
#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
let xminusoneovere = force_eval!(xminusoneovere);
xminusoneovere + one_over_e
};
if ans == 0.0 {