diff options
Diffstat (limited to 'library/stdarch/crates/core_arch/src/x86/sha.rs')
-rw-r--r-- | library/stdarch/crates/core_arch/src/x86/sha.rs | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/library/stdarch/crates/core_arch/src/x86/sha.rs b/library/stdarch/crates/core_arch/src/x86/sha.rs new file mode 100644 index 000000000..cfb330cfb --- /dev/null +++ b/library/stdarch/crates/core_arch/src/x86/sha.rs @@ -0,0 +1,221 @@ +use crate::{ + core_arch::{simd::*, x86::*}, + mem::transmute, +}; + +#[allow(improper_ctypes)] +extern "C" { + #[link_name = "llvm.x86.sha1msg1"] + fn sha1msg1(a: i32x4, b: i32x4) -> i32x4; + #[link_name = "llvm.x86.sha1msg2"] + fn sha1msg2(a: i32x4, b: i32x4) -> i32x4; + #[link_name = "llvm.x86.sha1nexte"] + fn sha1nexte(a: i32x4, b: i32x4) -> i32x4; + #[link_name = "llvm.x86.sha1rnds4"] + fn sha1rnds4(a: i32x4, b: i32x4, c: i8) -> i32x4; + #[link_name = "llvm.x86.sha256msg1"] + fn sha256msg1(a: i32x4, b: i32x4) -> i32x4; + #[link_name = "llvm.x86.sha256msg2"] + fn sha256msg2(a: i32x4, b: i32x4) -> i32x4; + #[link_name = "llvm.x86.sha256rnds2"] + fn sha256rnds2(a: i32x4, b: i32x4, k: i32x4) -> i32x4; +} + +#[cfg(test)] +use stdarch_test::assert_instr; + +/// Performs an intermediate calculation for the next four SHA1 message values +/// (unsigned 32-bit integers) using previous message values from `a` and `b`, +/// and returning the result. +/// +/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_sha1msg1_epu32) +#[inline] +#[target_feature(enable = "sha")] +#[cfg_attr(test, assert_instr(sha1msg1))] +#[stable(feature = "simd_x86", since = "1.27.0")] +pub unsafe fn _mm_sha1msg1_epu32(a: __m128i, b: __m128i) -> __m128i { + transmute(sha1msg1(a.as_i32x4(), b.as_i32x4())) +} + +/// Performs the final calculation for the next four SHA1 message values +/// (unsigned 32-bit integers) using the intermediate result in `a` and the +/// previous message values in `b`, and returns the result. +/// +/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_sha1msg2_epu32) +#[inline] +#[target_feature(enable = "sha")] +#[cfg_attr(test, assert_instr(sha1msg2))] +#[stable(feature = "simd_x86", since = "1.27.0")] +pub unsafe fn _mm_sha1msg2_epu32(a: __m128i, b: __m128i) -> __m128i { + transmute(sha1msg2(a.as_i32x4(), b.as_i32x4())) +} + +/// Calculate SHA1 state variable E after four rounds of operation from the +/// current SHA1 state variable `a`, add that value to the scheduled values +/// (unsigned 32-bit integers) in `b`, and returns the result. +/// +/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_sha1nexte_epu32) +#[inline] +#[target_feature(enable = "sha")] +#[cfg_attr(test, assert_instr(sha1nexte))] +#[stable(feature = "simd_x86", since = "1.27.0")] +pub unsafe fn _mm_sha1nexte_epu32(a: __m128i, b: __m128i) -> __m128i { + transmute(sha1nexte(a.as_i32x4(), b.as_i32x4())) +} + +/// Performs four rounds of SHA1 operation using an initial SHA1 state (A,B,C,D) +/// from `a` and some pre-computed sum of the next 4 round message values +/// (unsigned 32-bit integers), and state variable E from `b`, and return the +/// updated SHA1 state (A,B,C,D). `FUNC` contains the logic functions and round +/// constants. +/// +/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_sha1rnds4_epu32) +#[inline] +#[target_feature(enable = "sha")] +#[cfg_attr(test, assert_instr(sha1rnds4, FUNC = 0))] +#[rustc_legacy_const_generics(2)] +#[stable(feature = "simd_x86", since = "1.27.0")] +pub unsafe fn _mm_sha1rnds4_epu32<const FUNC: i32>(a: __m128i, b: __m128i) -> __m128i { + static_assert_imm2!(FUNC); + transmute(sha1rnds4(a.as_i32x4(), b.as_i32x4(), FUNC as i8)) +} + +/// Performs an intermediate calculation for the next four SHA256 message values +/// (unsigned 32-bit integers) using previous message values from `a` and `b`, +/// and return the result. +/// +/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_sha256msg1_epu32) +#[inline] +#[target_feature(enable = "sha")] +#[cfg_attr(test, assert_instr(sha256msg1))] +#[stable(feature = "simd_x86", since = "1.27.0")] +pub unsafe fn _mm_sha256msg1_epu32(a: __m128i, b: __m128i) -> __m128i { + transmute(sha256msg1(a.as_i32x4(), b.as_i32x4())) +} + +/// Performs the final calculation for the next four SHA256 message values +/// (unsigned 32-bit integers) using previous message values from `a` and `b`, +/// and return the result. +/// +/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_sha256msg2_epu32) +#[inline] +#[target_feature(enable = "sha")] +#[cfg_attr(test, assert_instr(sha256msg2))] +#[stable(feature = "simd_x86", since = "1.27.0")] +pub unsafe fn _mm_sha256msg2_epu32(a: __m128i, b: __m128i) -> __m128i { + transmute(sha256msg2(a.as_i32x4(), b.as_i32x4())) +} + +/// Performs 2 rounds of SHA256 operation using an initial SHA256 state +/// (C,D,G,H) from `a`, an initial SHA256 state (A,B,E,F) from `b`, and a +/// pre-computed sum of the next 2 round message values (unsigned 32-bit +/// integers) and the corresponding round constants from `k`, and store the +/// updated SHA256 state (A,B,E,F) in dst. +/// +/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_sha256rnds2_epu32) +#[inline] +#[target_feature(enable = "sha")] +#[cfg_attr(test, assert_instr(sha256rnds2))] +#[stable(feature = "simd_x86", since = "1.27.0")] +pub unsafe fn _mm_sha256rnds2_epu32(a: __m128i, b: __m128i, k: __m128i) -> __m128i { + transmute(sha256rnds2(a.as_i32x4(), b.as_i32x4(), k.as_i32x4())) +} + +#[cfg(test)] +mod tests { + use std::{ + f32, + f64::{self, NAN}, + i32, + mem::{self, transmute}, + }; + + use crate::{ + core_arch::{simd::*, x86::*}, + hint::black_box, + }; + use stdarch_test::simd_test; + + #[simd_test(enable = "sha")] + #[allow(overflowing_literals)] + unsafe fn test_mm_sha1msg1_epu32() { + let a = _mm_set_epi64x(0xe9b5dba5b5c0fbcf, 0x71374491428a2f98); + let b = _mm_set_epi64x(0xab1c5ed5923f82a4, 0x59f111f13956c25b); + let expected = _mm_set_epi64x(0x98829f34f74ad457, 0xda2b1a44d0b5ad3c); + let r = _mm_sha1msg1_epu32(a, b); + assert_eq_m128i(r, expected); + } + + #[simd_test(enable = "sha")] + #[allow(overflowing_literals)] + unsafe fn test_mm_sha1msg2_epu32() { + let a = _mm_set_epi64x(0xe9b5dba5b5c0fbcf, 0x71374491428a2f98); + let b = _mm_set_epi64x(0xab1c5ed5923f82a4, 0x59f111f13956c25b); + let expected = _mm_set_epi64x(0xf714b202d863d47d, 0x90c30d946b3d3b35); + let r = _mm_sha1msg2_epu32(a, b); + assert_eq_m128i(r, expected); + } + + #[simd_test(enable = "sha")] + #[allow(overflowing_literals)] + unsafe fn test_mm_sha1nexte_epu32() { + let a = _mm_set_epi64x(0xe9b5dba5b5c0fbcf, 0x71374491428a2f98); + let b = _mm_set_epi64x(0xab1c5ed5923f82a4, 0x59f111f13956c25b); + let expected = _mm_set_epi64x(0x2589d5be923f82a4, 0x59f111f13956c25b); + let r = _mm_sha1nexte_epu32(a, b); + assert_eq_m128i(r, expected); + } + + #[simd_test(enable = "sha")] + #[allow(overflowing_literals)] + unsafe fn test_mm_sha1rnds4_epu32() { + let a = _mm_set_epi64x(0xe9b5dba5b5c0fbcf, 0x71374491428a2f98); + let b = _mm_set_epi64x(0xab1c5ed5923f82a4, 0x59f111f13956c25b); + let expected = _mm_set_epi64x(0x32b13cd8322f5268, 0xc54420862bd9246f); + let r = _mm_sha1rnds4_epu32::<0>(a, b); + assert_eq_m128i(r, expected); + + let expected = _mm_set_epi64x(0x6d4c43e56a3c25d9, 0xa7e00fb775cbd3fe); + let r = _mm_sha1rnds4_epu32::<1>(a, b); + assert_eq_m128i(r, expected); + + let expected = _mm_set_epi64x(0xb304e383c01222f4, 0x66f6b3b1f89d8001); + let r = _mm_sha1rnds4_epu32::<2>(a, b); + assert_eq_m128i(r, expected); + + let expected = _mm_set_epi64x(0x8189b758bfabfa79, 0xdb08f6e78cae098b); + let r = _mm_sha1rnds4_epu32::<3>(a, b); + assert_eq_m128i(r, expected); + } + + #[simd_test(enable = "sha")] + #[allow(overflowing_literals)] + unsafe fn test_mm_sha256msg1_epu32() { + let a = _mm_set_epi64x(0xe9b5dba5b5c0fbcf, 0x71374491428a2f98); + let b = _mm_set_epi64x(0xab1c5ed5923f82a4, 0x59f111f13956c25b); + let expected = _mm_set_epi64x(0xeb84973fd5cda67d, 0x2857b88f406b09ee); + let r = _mm_sha256msg1_epu32(a, b); + assert_eq_m128i(r, expected); + } + + #[simd_test(enable = "sha")] + #[allow(overflowing_literals)] + unsafe fn test_mm_sha256msg2_epu32() { + let a = _mm_set_epi64x(0xe9b5dba5b5c0fbcf, 0x71374491428a2f98); + let b = _mm_set_epi64x(0xab1c5ed5923f82a4, 0x59f111f13956c25b); + let expected = _mm_set_epi64x(0xb58777ce887fd851, 0x15d1ec8b73ac8450); + let r = _mm_sha256msg2_epu32(a, b); + assert_eq_m128i(r, expected); + } + + #[simd_test(enable = "sha")] + #[allow(overflowing_literals)] + unsafe fn test_mm_sha256rnds2_epu32() { + let a = _mm_set_epi64x(0xe9b5dba5b5c0fbcf, 0x71374491428a2f98); + let b = _mm_set_epi64x(0xab1c5ed5923f82a4, 0x59f111f13956c25b); + let k = _mm_set_epi64x(0, 0x12835b01d807aa98); + let expected = _mm_set_epi64x(0xd3063037effb15ea, 0x187ee3db0d6d1d19); + let r = _mm_sha256rnds2_epu32(a, b, k); + assert_eq_m128i(r, expected); + } +} |