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Add tracking issue for RTM

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This commit is contained in:
Amanieu d'Antras 2023-05-03 16:00:54 +01:00
parent ca55a52eba
commit 7c238335ea
1 changed files with 12 additions and 0 deletions
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12
library/stdarch/crates/core_arch/src/x86/rtm.rs
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@ -28,26 +28,33 @@ extern "C" {
}
/// Transaction successfully started.
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub const _XBEGIN_STARTED: u32 = !0;
/// Transaction explicitly aborted with xabort. The parameter passed to xabort is available with
/// `_xabort_code(status)`.
#[allow(clippy::identity_op)]
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub const _XABORT_EXPLICIT: u32 = 1 << 0;
/// Transaction retry is possible.
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub const _XABORT_RETRY: u32 = 1 << 1;
/// Transaction abort due to a memory conflict with another thread.
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub const _XABORT_CONFLICT: u32 = 1 << 2;
/// Transaction abort due to the transaction using too much memory.
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub const _XABORT_CAPACITY: u32 = 1 << 3;
/// Transaction abort due to a debug trap.
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub const _XABORT_DEBUG: u32 = 1 << 4;
/// Transaction abort in a inner nested transaction.
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub const _XABORT_NESTED: u32 = 1 << 5;
/// Specifies the start of a restricted transactional memory (RTM) code region and returns a value
@ -57,6 +64,7 @@ pub const _XABORT_NESTED: u32 = 1 << 5;
#[inline]
#[target_feature(enable = "rtm")]
#[cfg_attr(test, assert_instr(xbegin))]
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub unsafe fn _xbegin() -> u32 {
x86_xbegin() as _
}
@ -67,6 +75,7 @@ pub unsafe fn _xbegin() -> u32 {
#[inline]
#[target_feature(enable = "rtm")]
#[cfg_attr(test, assert_instr(xend))]
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub unsafe fn _xend() {
x86_xend()
}
@ -78,6 +87,7 @@ pub unsafe fn _xend() {
#[target_feature(enable = "rtm")]
#[cfg_attr(test, assert_instr(xabort, IMM8 = 0x0))]
#[rustc_legacy_const_generics(0)]
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub unsafe fn _xabort<const IMM8: u32>() {
static_assert_uimm_bits!(IMM8, 8);
x86_xabort(IMM8 as i8)
@ -90,6 +100,7 @@ pub unsafe fn _xabort<const IMM8: u32>() {
#[inline]
#[target_feature(enable = "rtm")]
#[cfg_attr(test, assert_instr(xtest))]
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub unsafe fn _xtest() -> u8 {
x86_xtest() as _
}
@ -97,6 +108,7 @@ pub unsafe fn _xtest() -> u8 {
/// Retrieves the parameter passed to [`_xabort`] when [`_xbegin`]'s status has the
/// `_XABORT_EXPLICIT` flag set.
#[inline]
#[unstable(feature = "stdarch_x86_rtm", issue = "111138")]
pub const fn _xabort_code(status: u32) -> u32 {
(status >> 24) & 0xFF
}