[X86] Reverse *_set_ph and *_setr_ph 's set order.

[pengfei]

LGTM. Thanks Freddy.

[LuoYuanke]

This comment was removed by LuoYuanke.

[craig.topper]

clang/lib/Headers/avx512fp16intrin.h

92

Can we drop the underscores on these macro arguments?

Unless that would be inconsistent with the other setr implementations from sse/avx.

[FreddyYe]

address comments.

[FreddyYe]

THX for review.

clang/lib/Headers/avx512fp16intrin.h

 /*===----------- avx512fp16intrin.h - AVX512-FP16 intrinsics ---------------===
  *
  * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  * See https://llvm.org/LICENSE.txt for license information.
  * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===-----------------------------------------------------------------------===
  */
 #ifndef __IMMINTRIN_H
 #error "Never use <avx512fp16intrin.h> directly; include <immintrin.h> instead."
 #endif
 
 #ifndef __AVX512FP16INTRIN_H
 #define __AVX512FP16INTRIN_H
 
 /* Define the default attributes for the functions in this file. */
 typedef _Float16 __v32hf __attribute__((__vector_size__(64), __aligned__(64)));
 typedef _Float16 __m512h __attribute__((__vector_size__(64), __aligned__(64)));
 typedef _Float16 __m512h_u __attribute__((__vector_size__(64), __aligned__(1)));
 typedef _Float16 __v8hf __attribute__((__vector_size__(16), __aligned__(16)));
 typedef _Float16 __m128h __attribute__((__vector_size__(16), __aligned__(16)));
 typedef _Float16 __m128h_u __attribute__((__vector_size__(16), __aligned__(1)));
 typedef _Float16 __v16hf __attribute__((__vector_size__(32), __aligned__(32)));
 typedef _Float16 __m256h __attribute__((__vector_size__(32), __aligned__(32)));
 typedef _Float16 __m256h_u __attribute__((__vector_size__(32), __aligned__(1)));
 
 /* Define the default attributes for the functions in this file. */
 #define __DEFAULT_FN_ATTRS512                                                  \
   __attribute__((__always_inline__, __nodebug__, __target__("avx512fp16"),     \
                  __min_vector_width__(512)))
 #define __DEFAULT_FN_ATTRS256                                                  \
   __attribute__((__always_inline__, __nodebug__, __target__("avx512fp16"),     \
                  __min_vector_width__(256)))
 #define __DEFAULT_FN_ATTRS128                                                  \
   __attribute__((__always_inline__, __nodebug__, __target__("avx512fp16"),     \
                  __min_vector_width__(128)))
 
 static __inline__ _Float16 __DEFAULT_FN_ATTRS512 _mm512_cvtsh_h(__m512h __a) {
   return __a[0];
 }
 
 static __inline __m128h __DEFAULT_FN_ATTRS128 _mm_setzero_ph(void) {
   return (__m128h){0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
 }
 
 static __inline __m256h __DEFAULT_FN_ATTRS256 _mm256_setzero_ph(void) {

 static __inline__ __m128h __DEFAULT_FN_ATTRS128 _mm_undefined_ph(void) {
   return (__m128h)__builtin_ia32_undef128();
 }
 
 static __inline__ __m512h __DEFAULT_FN_ATTRS512 _mm512_undefined_ph(void) {
   return (__m512h)__builtin_ia32_undef512();
 }
 
 static __inline __m512h __DEFAULT_FN_ATTRS512 _mm512_set1_ph(_Float16 __h) {
   return (__m512h)(__v32hf){__h, __h, __h, __h, __h, __h, __h, __h,
                             __h, __h, __h, __h, __h, __h, __h, __h,
                             __h, __h, __h, __h, __h, __h, __h, __h,
                             __h, __h, __h, __h, __h, __h, __h, __h};
 }
 
 static __inline __m512h __DEFAULT_FN_ATTRS512
 _mm512_set_ph(_Float16 __h1, _Float16 __h2, _Float16 __h3, _Float16 __h4,
               _Float16 __h5, _Float16 __h6, _Float16 __h7, _Float16 __h8,
               _Float16 __h9, _Float16 __h10, _Float16 __h11, _Float16 __h12,
               _Float16 __h13, _Float16 __h14, _Float16 __h15, _Float16 __h16,
               _Float16 __h17, _Float16 __h18, _Float16 __h19, _Float16 __h20,
               _Float16 __h21, _Float16 __h22, _Float16 __h23, _Float16 __h24,
               _Float16 __h25, _Float16 __h26, _Float16 __h27, _Float16 __h28,
               _Float16 __h29, _Float16 __h30, _Float16 __h31, _Float16 __h32) {
-  return (__m512h)(__v32hf){__h1,  __h2,  __h3,  __h4,  __h5,  __h6,  __h7,
-                            __h8,  __h9,  __h10, __h11, __h12, __h13, __h14,
-                            __h15, __h16, __h17, __h18, __h19, __h20, __h21,
-                            __h22, __h23, __h24, __h25, __h26, __h27, __h28,
-                            __h29, __h30, __h31, __h32};
+  return (__m512h)(__v32hf){__h32, __h31, __h30, __h29, __h28, __h27, __h26,
+                            __h25, __h24, __h23, __h22, __h21, __h20, __h19,
+                            __h18, __h17, __h16, __h15, __h14, __h13, __h12,
+                            __h11, __h10, __h9,  __h8,  __h7,  __h6,  __h5,
+                            __h4,  __h3,  __h2,  __h1};
 }
 
 #define _mm512_setr_ph(__h1, __h2, __h3, __h4, __h5, __h6, __h7, __h8, __h9,   \
                        __h10, __h11, __h12, __h13, __h14, __h15, __h16, __h17, \
                        __h18, __h19, __h20, __h21, __h22, __h23, __h24, __h25, \
                        __h26, __h27, __h28, __h29, __h30, __h31, __h32)        \
   _mm512_set_ph((__h32), (__h31), (__h30), (__h29), (__h28), (__h27), (__h26), \
                 (__h25), (__h24), (__h23), (__h22), (__h21), (__h20), (__h19), \
                 (__h18), (__h17), (__h16), (__h15), (__h14), (__h13), (__h12), \
                 (__h11), (__h10), (__h9), (__h8), (__h7), (__h6), (__h5),      \
                 (__h4), (__h3), (__h2), (__h1))

clang/lib/Headers/avx512vlfp16intrin.h

 /*===---------- avx512vlfp16intrin.h - AVX512-FP16 intrinsics --------------===
  *
  * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  * See https://llvm.org/LICENSE.txt for license information.
  * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===-----------------------------------------------------------------------===
  */
 #ifndef __IMMINTRIN_H
 #error                                                                         \
     "Never use <avx512vlfp16intrin.h> directly; include <immintrin.h> instead."
 #endif
 
 #ifndef __AVX512VLFP16INTRIN_H
 #define __AVX512VLFP16INTRIN_H
 
 /* Define the default attributes for the functions in this file. */
 #define __DEFAULT_FN_ATTRS256                                                  \
   __attribute__((__always_inline__, __nodebug__,                               \
                  __target__("avx512fp16, avx512vl"),                           \
                  __min_vector_width__(256)))
 #define __DEFAULT_FN_ATTRS128                                                  \
   __attribute__((__always_inline__, __nodebug__,                               \
                  __target__("avx512fp16, avx512vl"),                           \
                  __min_vector_width__(128)))
 
 static __inline__ _Float16 __DEFAULT_FN_ATTRS128 _mm_cvtsh_h(__m128h __a) {
   return __a[0];
 }
 
 static __inline__ _Float16 __DEFAULT_FN_ATTRS256 _mm256_cvtsh_h(__m256h __a) {
   return __a[0];
 }
 
 static __inline__ __m128h __DEFAULT_FN_ATTRS128 _mm_set_sh(_Float16 __h) {
   return __extension__(__m128h){__h, 0, 0, 0, 0, 0, 0, 0};
 }
 
 static __inline __m128h __DEFAULT_FN_ATTRS128 _mm_set1_ph(_Float16 __h) {
   return (__m128h)(__v8hf){__h, __h, __h, __h, __h, __h, __h, __h};
 }
 
 static __inline __m256h __DEFAULT_FN_ATTRS256 _mm256_set1_ph(_Float16 __h) {
   return (__m256h)(__v16hf){__h, __h, __h, __h, __h, __h, __h, __h,
                             __h, __h, __h, __h, __h, __h, __h, __h};
 }
 
 static __inline __m128h __DEFAULT_FN_ATTRS128
 _mm_set_ph(_Float16 __h1, _Float16 __h2, _Float16 __h3, _Float16 __h4,
            _Float16 __h5, _Float16 __h6, _Float16 __h7, _Float16 __h8) {
-  return (__m128h)(__v8hf){__h1, __h2, __h3, __h4, __h5, __h6, __h7, __h8};
+  return (__m128h)(__v8hf){__h8, __h7, __h6, __h5, __h4, __h3, __h2, __h1};
 }
 
 static __inline __m256h __DEFAULT_FN_ATTRS256
 _mm256_set_ph(_Float16 __h1, _Float16 __h2, _Float16 __h3, _Float16 __h4,
               _Float16 __h5, _Float16 __h6, _Float16 __h7, _Float16 __h8,
               _Float16 __h9, _Float16 __h10, _Float16 __h11, _Float16 __h12,
               _Float16 __h13, _Float16 __h14, _Float16 __h15, _Float16 __h16) {
-  return (__m256h)(__v16hf){__h1,  __h2,  __h3,  __h4,  __h5,  __h6,
-                            __h7,  __h8,  __h9,  __h10, __h11, __h12,
-                            __h13, __h14, __h15, __h16};
+  return (__m256h)(__v16hf){__h16, __h15, __h14, __h13, __h12, __h11,
+                            __h10, __h9,  __h8,  __h7,  __h6,  __h5,
+                            __h4,  __h3,  __h2,  __h1};
 }
 
 #define _mm_setr_ph(__h1, __h2, __h3, __h4, __h5, __h6, __h7, __h8)            \
   _mm_set_ph((__h8), (__h7), (__h6), (__h5), (__h4), (__h3), (__h2), (__h1))
 
 #define _mm256_setr_ph(__h1, __h2, __h3, __h4, __h5, __h6, __h7, __h8, __h9,   \
                        __h10, __h11, __h12, __h13, __h14, __h15, __h16)        \
   _mm256_set_ph((__h16), (__h15), (__h14), (__h13), (__h12), (__h11), (__h10), \