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Use the new definition of rdtscp intrinsic

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- add `-Zverify-llvm-ir` in testsuite
This commit is contained in:
sayantn
2025-05-28 02:08:46 +05:30
committed by Amanieu d'Antras
parent 28960ece72
commit 3de76d47a2
2 changed files with 6 additions and 4 deletions
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2
library/stdarch/ci/run.sh
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@@ -10,7 +10,7 @@ set -ex
#export RUST_TEST_NOCAPTURE=1 #export RUST_TEST_NOCAPTURE=1
#export RUST_TEST_THREADS=1 #export RUST_TEST_THREADS=1
export RUSTFLAGS="${RUSTFLAGS} -D warnings -Z merge-functions=disabled " export RUSTFLAGS="${RUSTFLAGS} -D warnings -Z merge-functions=disabled -Z verify-llvm-ir"
export HOST_RUSTFLAGS="${RUSTFLAGS}" export HOST_RUSTFLAGS="${RUSTFLAGS}"
export PROFILE="${PROFILE:="--profile=release"}" export PROFILE="${PROFILE:="--profile=release"}"

8
library/stdarch/crates/core_arch/src/x86/rdtsc.rs
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@@ -46,15 +46,17 @@ pub unsafe fn _rdtsc() -> u64 {
#[cfg_attr(test, assert_instr(rdtscp))] #[cfg_attr(test, assert_instr(rdtscp))]
#[stable(feature = "simd_x86", since = "1.27.0")] #[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn __rdtscp(aux: *mut u32) -> u64 { pub unsafe fn __rdtscp(aux: *mut u32) -> u64 {
rdtscp(aux as *mut _) let (tsc, auxval) = rdtscp();
*aux = auxval;
tsc
} }
#[allow(improper_ctypes)] #[allow(improper_ctypes)]
unsafe extern "C" { unsafe extern "unadjusted" {
#[link_name = "llvm.x86.rdtsc"] #[link_name = "llvm.x86.rdtsc"]
fn rdtsc() -> u64; fn rdtsc() -> u64;
#[link_name = "llvm.x86.rdtscp"] #[link_name = "llvm.x86.rdtscp"]
fn rdtscp(aux: *mut u8) -> u64; fn rdtscp() -> (u64, u32);
} }
#[cfg(test)] #[cfg(test)]