#[cfg(target_arch = "x86")]
#[inline(always)]
#[stable(feature = "simd_x86", since = "1.27.0")]
#[rustc_deprecated(
since = "1.29.0",
reason = "See issue #51810 - use inline assembly instead"
)]
#[doc(hidden)]
pub unsafe fn __readeflags() -> u32 {
let eflags: u32;
asm!("pushfd; popl $0" : "=r"(eflags) : : : "volatile");
eflags
}
#[cfg(target_arch = "x86_64")]
#[inline(always)]
#[stable(feature = "simd_x86", since = "1.27.0")]
#[rustc_deprecated(
since = "1.29.0",
reason = "See issue #51810 - use inline assembly instead"
)]
#[doc(hidden)]
pub unsafe fn __readeflags() -> u64 {
let eflags: u64;
asm!("pushfq; popq $0" : "=r"(eflags) : : : "volatile");
eflags
}
#[cfg(target_arch = "x86")]
#[inline(always)]
#[stable(feature = "simd_x86", since = "1.27.0")]
#[rustc_deprecated(
since = "1.29.0",
reason = "See issue #51810 - use inline assembly instead"
)]
#[doc(hidden)]
pub unsafe fn __writeeflags(eflags: u32) {
asm!("pushl $0; popfd" : : "r"(eflags) : "cc", "flags" : "volatile");
}
#[cfg(target_arch = "x86_64")]
#[inline(always)]
#[stable(feature = "simd_x86", since = "1.27.0")]
#[rustc_deprecated(
since = "1.29.0",
reason = "See issue #51810 - use inline assembly instead"
)]
#[doc(hidden)]
pub unsafe fn __writeeflags(eflags: u64) {
asm!("pushq $0; popfq" : : "r"(eflags) : "cc", "flags" : "volatile");
}
#[cfg(test)]
mod tests {
use coresimd::x86::*;
#[test]
#[allow(deprecated)]
fn test_eflags() {
unsafe {
let v = __readeflags();
__writeeflags(v);
let u = __readeflags();
assert_eq!(v, u);
}
}
}