xref: /freebsd/contrib/llvm-project/clang/lib/Headers/x86gprintrin.h (revision 5036d9652a5701d00e9e40ea942c278e9f77d33d)
1 /*===--------------- x86gprintrin.h - X86 GPR intrinsics ------------------===
2  *
3  * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4  * See https://llvm.org/LICENSE.txt for license information.
5  * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6  *
7  *===-----------------------------------------------------------------------===
8  */
9 
10 #ifndef __X86GPRINTRIN_H
11 #define __X86GPRINTRIN_H
12 
13 #if !defined(__SCE__) || __has_feature(modules) || defined(__HRESET__)
14 #include <hresetintrin.h>
15 #endif
16 
17 #if !defined(__SCE__) || __has_feature(modules) || defined(__UINTR__)
18 #include <uintrintrin.h>
19 #endif
20 
21 #if !defined(__SCE__) || __has_feature(modules) || defined(__USERMSR__)
22 #include <usermsrintrin.h>
23 #endif
24 
25 #if !defined(__SCE__) || __has_feature(modules) || defined(__CRC32__)
26 #include <crc32intrin.h>
27 #endif
28 
29 #if !defined(__SCE__) || __has_feature(modules) || defined(__PRFCHI__)
30 #include <prfchiintrin.h>
31 #endif
32 
33 #if !defined(__SCE__) || __has_feature(modules) || defined(__RAOINT__)
34 #include <raointintrin.h>
35 #endif
36 
37 #if !defined(__SCE__) || __has_feature(modules) || defined(__CMPCCXADD__)
38 #include <cmpccxaddintrin.h>
39 #endif
40 
41 #if defined(__i386__)
42 #define __SAVE_GPRBX "mov {%%ebx, %%eax |eax, ebx};"
43 #define __RESTORE_GPRBX "mov {%%eax, %%ebx |ebx, eax};"
44 #define __TMPGPR "eax"
45 #else
46 // When in 64-bit target, the 32-bit operands generate a 32-bit result,
47 // zero-extended to a 64-bit result in the destination general-purpose,
48 // It means "mov x %ebx" will clobber the higher 32 bits of rbx, so we
49 // should preserve the 64-bit register rbx.
50 #define __SAVE_GPRBX "mov {%%rbx, %%rax |rax, rbx};"
51 #define __RESTORE_GPRBX "mov {%%rax, %%rbx |rbx, rax};"
52 #define __TMPGPR "rax"
53 #endif
54 
55 #define __SSC_MARK(__Tag)                                                      \
56   __asm__ __volatile__( __SAVE_GPRBX                                           \
57                        "mov {%0, %%ebx|ebx, %0}; "                             \
58                        ".byte 0x64, 0x67, 0x90; "                              \
59                         __RESTORE_GPRBX                                        \
60                        ::"i"(__Tag)                                            \
61                        :  __TMPGPR );
62 
63 #endif /* __X86GPRINTRIN_H */
64