[clang] [X86][AVX10.2] Add comments for the avx10_2convertintrin.h file (PR #120766)
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Fri Dec 20 08:20:49 PST 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang
Author: Mikołaj Piróg (mikolaj-pirog)
<details>
<summary>Changes</summary>
As in title. I will create a sibling pr with comments to the 512 in a separate PR.
---
Patch is 111.62 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/120766.diff
1 Files Affected:
- (modified) clang/lib/Headers/avx10_2convertintrin.h (+2696)
``````````diff
diff --git a/clang/lib/Headers/avx10_2convertintrin.h b/clang/lib/Headers/avx10_2convertintrin.h
index 134adb2850c8de..52a64a5309763d 100644
--- a/clang/lib/Headers/avx10_2convertintrin.h
+++ b/clang/lib/Headers/avx10_2convertintrin.h
@@ -24,24 +24,146 @@
__attribute__((__always_inline__, __nodebug__, __target__("avx10.2-256"), \
__min_vector_width__(256)))
+/// Convert two 128-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 128-bit vector
+/// containing FP16 elements.
+///
+/// \code{.operation}
+/// FOR i := 0 to 7
+/// IF i < 4
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 4])
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __A
+/// A 128-bit vector of [4 x float].
+/// \param __B
+/// A 128-bit vector of [4 x float].
+/// \returns
+/// A 128-bit vector of [8 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A.
static __inline__ __m128h __DEFAULT_FN_ATTRS128 _mm_cvtx2ps_ph(__m128 __A,
__m128 __B) {
return (__m128h)__builtin_ia32_vcvt2ps2phx128_mask(
(__v4sf)__A, (__v4sf)__B, (__v8hf)_mm_setzero_ph(), (__mmask8)(-1));
}
+/// Convert two 128-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 128-bit vector
+/// containing FP16 elements. Merging mask \a __U is used to determine if given
+/// element should be taken from \a __W instead.
+///
+/// \code{.operation}
+/// FOR i := 0 to 7
+/// IF mask[i]
+/// dst.fp16[i] := __W[i]
+/// ELSE
+/// IF i < 4
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 4])
+/// FI
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __W
+/// A 128-bit vector of [8 x fp16].
+/// \param __U
+/// A 8-bit merging mask.
+/// \param __A
+/// A 128-bit vector of [4 x float].
+/// \param __B
+/// A 128-bit vector of [4 x float].
+/// \returns
+/// A 128-bit vector of [8 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A. If corresponding mask bit is set, then
+/// element from \a __W is taken instead.
static __inline__ __m128h __DEFAULT_FN_ATTRS128
_mm_mask_cvtx2ps_ph(__m128h __W, __mmask8 __U, __m128 __A, __m128 __B) {
return (__m128h)__builtin_ia32_vcvt2ps2phx128_mask(
(__v4sf)__A, (__v4sf)__B, (__v8hf)__W, (__mmask8)__U);
}
+/// Convert two 128-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 128-bit vector
+/// containing FP16 elements. Zeroing mask \a __U is used to determine if given
+/// element should be zeroed instead.
+///
+/// \code{.operation}
+/// FOR i := 0 to 7
+/// IF mask[i]
+/// IF i < 4
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 4])
+/// FI
+/// ELSE
+/// dst.fp16[i] := 0
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __U
+/// A 8-bit zeroing mask.
+/// \param __A
+/// A 128-bit vector of [4 x float].
+/// \param __B
+/// A 128-bit vector of [4 x float].
+/// \returns
+/// A 128-bit vector of [8 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A. If corresponding mask bit is not set,
+/// then zero is taken instead.
static __inline__ __m128h __DEFAULT_FN_ATTRS128
_mm_maskz_cvtx2ps_ph(__mmask8 __U, __m128 __A, __m128 __B) {
return (__m128h)__builtin_ia32_vcvt2ps2phx128_mask(
(__v4sf)__A, (__v4sf)__B, (__v8hf)_mm_setzero_ph(), (__mmask8)__U);
}
+/// Convert two 256-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 256-bit vector
+/// containing FP16 elements.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// IF i < 8
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 8])
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __A
+/// A 256-bit vector of [8 x float].
+/// \param __B
+/// A 256-bit vector of [8 x float].
+/// \returns
+/// A 256-bit vector of [16 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A.
static __inline__ __m256h __DEFAULT_FN_ATTRS256 _mm256_cvtx2ps_ph(__m256 __A,
__m256 __B) {
return (__m256h)__builtin_ia32_vcvt2ps2phx256_mask(
@@ -49,6 +171,42 @@ static __inline__ __m256h __DEFAULT_FN_ATTRS256 _mm256_cvtx2ps_ph(__m256 __A,
_MM_FROUND_CUR_DIRECTION);
}
+/// Convert two 256-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 256-bit vector
+/// containing FP16 elements. Merging mask \a __U is used to determine if given
+/// element should be taken from \a __W instead.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// IF mask[i]
+/// dst.fp16[i] := __W[i]
+/// ELSE
+/// IF i < 8
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 8])
+/// FI
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __W
+/// A 256-bit vector of [16 x fp16].
+/// \param __U
+/// A 16-bit merging mask.
+/// \param __A
+/// A 256-bit vector of [8 x float].
+/// \param __B
+/// A 256-bit vector of [8 x float].
+/// \returns
+/// A 256-bit vector of [16 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A. If corresponding mask bit is set, then
+/// element from \a __W is taken instead.
static __inline__ __m256h __DEFAULT_FN_ATTRS256
_mm256_mask_cvtx2ps_ph(__m256h __W, __mmask16 __U, __m256 __A, __m256 __B) {
return (__m256h)__builtin_ia32_vcvt2ps2phx256_mask(
@@ -56,6 +214,40 @@ _mm256_mask_cvtx2ps_ph(__m256h __W, __mmask16 __U, __m256 __A, __m256 __B) {
_MM_FROUND_CUR_DIRECTION);
}
+/// Convert two 256-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 256-bit vector
+/// containing FP16 elements. Zeroing mask \a __U is used to determine if given
+/// element should be zeroed instead.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// IF mask[i]
+/// IF i < 8
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 8])
+/// FI
+/// ELSE
+/// dst.fp16[i] := 0
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __U
+/// A 16-bit zeroing mask.
+/// \param __A
+/// A 256-bit vector of [8 x float].
+/// \param __B
+/// A 256-bit vector of [8 x float].
+/// \returns
+/// A 256-bit vector of [16 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A. If corresponding mask bit is not set,
+/// then zero is taken instead.
static __inline__ __m256h __DEFAULT_FN_ATTRS256
_mm256_maskz_cvtx2ps_ph(__mmask16 __U, __m256 __A, __m256 __B) {
return (__m256h)__builtin_ia32_vcvt2ps2phx256_mask(
@@ -63,32 +255,233 @@ _mm256_maskz_cvtx2ps_ph(__mmask16 __U, __m256 __A, __m256 __B) {
_MM_FROUND_CUR_DIRECTION);
}
+/// Convert two 256-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 256-bit vector
+/// containing FP16 elements. Rounding mode \a __R needs to be provided.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// IF i < 8
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 8])
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __A
+/// A 256-bit vector of [8 x float].
+/// \param __B
+/// A 256-bit vector of [8 x float].
+/// \param __R
+/// Rounding mode. Valid inputs are: _MM_FROUND_CUR_DIRECTION or
+/// result of bitwise or of _MM_FROUND_NO_EXC with at most one of the following:
+/// _MM_FROUND_TO_NEAREST_INT, _MM_FROUND_TO_NEG_INF, _MM_FROUND_TO_POS_INF,
+/// _MM_FROUND_TO_ZERO.
+/// \returns
+/// A 256-bit vector of [16 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A.
#define _mm256_cvtx_round2ps_ph(A, B, R) \
((__m256h)__builtin_ia32_vcvt2ps2phx256_mask( \
(__v8sf)(A), (__v8sf)(B), (__v16hf)_mm256_undefined_ph(), \
(__mmask16)(-1), (const int)(R)))
+/// Convert two 256-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 256-bit vector
+/// containing FP16 elements. Merging mask \a __U is used to determine if given
+/// element should be taken from \a __W instead. Rounding mode \a __R needs to
+/// be provided.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// IF mask[i]
+/// dst.fp16[i] := __W[i]
+/// ELSE
+/// IF i < 8
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 8])
+/// FI
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __W
+/// A 256-bit vector of [16 x fp16].
+/// \param __U
+/// A 16-bit merging mask.
+/// \param __A
+/// A 256-bit vector of [8 x float].
+/// \param __B
+/// A 256-bit vector of [8 x float].
+/// \param __R
+/// Rounding mode. Valid inputs are: _MM_FROUND_CUR_DIRECTION or
+/// result of bitwise or of _MM_FROUND_NO_EXC with at most one of the following:
+/// _MM_FROUND_TO_NEAREST_INT, _MM_FROUND_TO_NEG_INF, _MM_FROUND_TO_POS_INF,
+/// _MM_FROUND_TO_ZERO.
+/// \returns
+/// A 256-bit vector of [16 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A. If corresponding mask bit is set, then
+/// element from \a __W is taken instead.
#define _mm256_mask_cvtx_round2ps_ph(W, U, A, B, R) \
((__m256h)__builtin_ia32_vcvt2ps2phx256_mask( \
(__v8sf)(A), (__v8sf)(B), (__v16hf)(W), (__mmask16)(U), (const int)(R)))
+/// Convert two 256-bit vectors, \a __A and \a __B, containing packed
+/// single-precision (32-bit) floating-point elements to a 256-bit vector
+/// containing FP16 elements. Zeroing mask \a __U is used to determine if given
+/// element should be zeroed instead. Rounding mode \a __R needs to be provided.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// IF mask[i]
+/// IF i < 8
+/// dst.fp16[i] := convert_fp32_to_fp16(__B.fp32[i])
+/// ELSE
+/// dst.fp16[i] := convert_fp32_to_fp16(__A.fp32[i - 8])
+/// FI
+/// ELSE
+/// dst.fp16[i] := 0
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVT2PS2PHX instruction.
+///
+/// \param __U
+/// A 16-bit zeroing mask.
+/// \param __A
+/// A 256-bit vector of [8 x float].
+/// \param __B
+/// A 256-bit vector of [8 x float].
+/// \param __R
+/// Rounding mode. Valid inputs are: _MM_FROUND_CUR_DIRECTION or
+/// result of bitwise or of _MM_FROUND_NO_EXC with at most one of the following:
+/// _MM_FROUND_TO_NEAREST_INT, _MM_FROUND_TO_NEG_INF, _MM_FROUND_TO_POS_INF,
+/// _MM_FROUND_TO_ZERO.
+/// \returns
+/// A 256-bit vector of [16 x fp16]. Lower elements correspond to the
+/// (converted) elements from \a __B; higher order elements correspond to the
+/// (converted) elements from \a __A. If corresponding mask bit is not set,
+/// then zero is taken instead.
#define _mm256_maskz_cvtx_round2ps_ph(U, A, B, R) \
((__m256h)__builtin_ia32_vcvt2ps2phx256_mask( \
(__v8sf)(A), (__v8sf)(B), (__v16hf)(_mm256_setzero_ph()), \
(__mmask16)(U), (const int)(R)))
+/// Add two 128-bit vectors, \a __A and \a __B, containing packed FP16
+/// floating-point elements and 8-bit integers stored in the lower half of
+/// packed 16-bit integers, respectively. Results are converted to FP8 E5M2.
+///
+/// \code{.operation}
+/// FOR i := 0 to 7
+/// dst.fp8[i] := add_convert_fp16_to_fp8_bias(__A.fp16[i], __B.int8[2i])
+/// ENDFOR
+///
+/// dst[127:64] := 0
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVTBIASPH2BF8 instruction.
+///
+/// \param __A
+/// A 128-bit vector of [8 x fp16].
+/// \param __B
+/// A 128-bit vector of [8 x int16].
+/// \returns
+/// A 128-bit vector of [16 x fp8]. Lower elements correspond to the
+/// sum of elements from \a __A and \a __B; higher order elements are zeroed.
static __inline__ __m128i __DEFAULT_FN_ATTRS128
_mm_cvtbiasph_pbf8(__m128i __A, __m128h __B) {
return (__m128i)__builtin_ia32_vcvtbiasph2bf8_128_mask(
(__v16qi)__A, (__v8hf)__B, (__v16qi)_mm_undefined_si128(), (__mmask8)-1);
}
+/// Add two 128-bit vectors, \a __A and \a __B, containing packed FP16
+/// floating-point elements and 8-bit integers stored in the lower half of
+/// packed 16-bit integers, respectively. Results are converted to FP8 E5M2.
+/// Merging mask \a __U is used to determine if given element should be taken
+/// from \a __W instead.
+///
+/// \code{.operation}
+/// FOR i := 0 to 7
+/// IF __U[i]
+/// dst.fp8[i] := _W[i]
+/// ELSE
+/// dst.fp8[i] := add_convert_fp16_to_fp8_bias(__A.fp16[i], __B.int8[2i])
+/// FI
+/// ENDFOR
+///
+/// dst[127:64] := 0
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVTBIASPH2BF8 instruction.
+///
+/// \param __W
+/// A 128-bit vector of [16 x fp8].
+/// \param __U
+/// A 8-bit merging mask.
+/// \param __A
+/// A 128-bit vector of [8 x fp16].
+/// \param __B
+/// A 128-bit vector of [8 x int16].
+/// \returns
+/// A 128-bit vector of [16 x fp8]. Lower elements correspond to the sum of
+/// elements from \a __A and \a __B; higher order elements are zeroed. If
+/// corresponding mask bit is set, then element from \a __W is taken instead.
static __inline__ __m128i __DEFAULT_FN_ATTRS128
_mm_mask_cvtbiasph_pbf8(__m128i __W, __mmask8 __U, __m128i __A, __m128h __B) {
return (__m128i)__builtin_ia32_vcvtbiasph2bf8_128_mask(
(__v16qi)__A, (__v8hf)__B, (__v16qi)(__m128i)__W, (__mmask8)__U);
}
+/// Add two 128-bit vectors, \a __A and \a __B, containing packed FP16
+/// floating-point elements and 8-bit integers stored in the lower half of
+/// packed 16-bit integers, respectively. Results are converted to FP8 E5M2.
+/// Zeroing mask \a __U is used to determine if given element should be zeroed
+/// instead.
+///
+/// \code{.operation}
+/// FOR i := 0 to 7
+/// IF __U[i]
+/// dst.fp8[i] := add_convert_fp16_to_fp8_bias(__A.fp16[i], __B.int8[2i])
+/// ELSE
+/// dst.fp8[i] := 0
+/// FI
+/// ENDFOR
+///
+/// dst[127:64] := 0
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVTBIASPH2BF8 instruction.
+///
+/// \param __U
+/// A 8-bit zeroing mask.
+/// \param __A
+/// A 128-bit vector of [8 x fp16].
+/// \param __B
+/// A 128-bit vector of [8 x int16].
+/// \returns
+/// A 128-bit vector of [16 x fp8]. Lower elements correspond to the sum of
+/// elements from \a __A and \a __B; higher order elements are zeroed. If
+/// corresponding mask bit is not set, then element is zeroed.
static __inline__ __m128i __DEFAULT_FN_ATTRS128
_mm_maskz_cvtbiasph_pbf8(__mmask8 __U, __m128i __A, __m128h __B) {
return (__m128i)__builtin_ia32_vcvtbiasph2bf8_128_mask(
@@ -96,6 +489,27 @@ _mm_maskz_cvtbiasph_pbf8(__mmask8 __U, __m128i __A, __m128h __B) {
(__mmask8)__U);
}
+/// Add two 256-bit vectors, \a __A and \a __B, containing packed FP16
+/// floating-point elements and 8-bit integers stored in the lower half of
+/// packed 16-bit integers, respectively. Results are converted to FP8 E5M2.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// dst.fp8[i] := add_convert_fp16_to_fp8_bias(__A.fp16[i], __B.int8[2i])
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVTBIASPH2BF8 instruction.
+///
+/// \param __A
+/// A 256-bit vector of [16 x fp16].
+/// \param __B
+/// A 256-bit vector of [16 x int16].
+/// \returns
+/// A 128-bit vector of [16 x fp8]. Elements correspond to the
+/// sum of elements from \a __A and \a __B.
static __inline__ __m128i __DEFAULT_FN_ATTRS256
_mm256_cvtbiasph_pbf8(__m256i __A, __m256h __B) {
return (__m128i)__builtin_ia32_vcvtbiasph2bf8_256_mask(
@@ -103,12 +517,74 @@ _mm256_cvtbiasph_pbf8(__m256i __A, __m256h __B) {
(__mmask16)-1);
}
+/// Add two 256-bit vectors, \a __A and \a __B, containing packed FP16
+/// floating-point elements and 8-bit integers stored in the lower half of
+/// packed 16-bit integers, respectively. Results are converted to FP8 E5M2.
+/// Merging mask \a __U is used to determine if given element should be taken
+/// from \a __W instead.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// IF __U[i]
+/// dst.fp8[i] := _W[i]
+/// ELSE
+/// dst.fp8[i] := add_convert_fp16_to_fp8_bias(__A.fp16[i], __B.int8[2i])
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVTBIASPH2BF8 instruction.
+///
+/// \param __W
+/// A 128-bit vector of [16 x fp8].
+/// \param __U
+/// A 16-bit merging mask.
+/// \param __A
+/// A 256-bit vector of [16 x fp16].
+/// \param __B
+/// A 256-bit vector of [16 x int16].
+/// \returns
+/// A 128-bit vector of [16 x fp8]. Elements correspond to the sum of
+/// elements from \a __A and \a __B. If corresponding mask bit is set, then
+/// element from \a __W is taken instead.
static __inline__ __m128i __DEFAULT_FN_ATTRS256 _mm256_mask_cvtbiasph_pbf8(
__m128i __W, __mmask16 __U, __m256i __A, __m256h __B) {
return (__m128i)__builtin_ia32_vcvtbiasph2bf8_256_mask(
(__v32qi)__A, (__v16hf)__B, (__v16qi)(__m128i)__W, (__mmask16)__U);
}
+/// Add two 256-bit vectors, \a __A and \a __B, containing packed FP16
+/// floating-point elements and 8-bit integers stored in the lower half of
+/// packed 16-bit integers, respectively. Results are converted to FP8 E5M2.
+/// Merging mask \a __U is used to determine if given element should be taken
+/// from \a __W instead.
+///
+/// \code{.operation}
+/// FOR i := 0 to 15
+/// IF __U[i]
+/// dst.fp8[i] := add_convert_fp16_to_fp8_bias(__A.fp16[i], __B.int8[2i])
+/// ELSE
+/// dst.fp8[i] := 0
+/// FI
+/// ENDFOR
+/// \endcode
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c VCVTBIASPH2BF8 instruction.
+///
+/// \param __U
+/// A 16-bit zeroing mask.
+/// \param __A
+/// A 256-bit vector of [16 x fp16].
+/// \param __B
+/// A 256-bit vector of [16 x int16].
+/// \returns
+/// A 128-bit vector of ...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/120766
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