1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
dnl as-gcc-inline-assembly.m4 0.1.0
dnl autostars m4 macro for detection of gcc inline assembly
dnl David Schleef <ds@schleef.org>
dnl AS_COMPILER_FLAG(ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
dnl Tries to compile with the given CFLAGS.
dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags,
dnl and ACTION-IF-NOT-ACCEPTED otherwise.
AC_DEFUN([AS_GCC_INLINE_ASSEMBLY],
[
AC_MSG_CHECKING([if compiler supports gcc-style inline assembly])
AC_TRY_COMPILE([], [
#ifdef __GNUC_MINOR__
#if (__GNUC__ * 1000 + __GNUC_MINOR__) < 3004
#error GCC before 3.4 has critical bugs compiling inline assembly
#endif
#endif
__asm__ (""::) ], [flag_ok=yes], [flag_ok=no])
if test "X$flag_ok" = Xyes ; then
$1
true
else
$2
true
fi
AC_MSG_RESULT([$flag_ok])
])
AC_DEFUN([AS_ASM_ARM_NEON],
[
AC_MSG_CHECKING([if assembler supports NEON instructions on ARM])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("vorr d0,d0,d0")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])
AC_DEFUN([AS_ASM_ARM_NEON_FORCE],
[
AC_MSG_CHECKING([if assembler supports NEON instructions on ARM])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__(".arch armv7-a\n.fpu neon\n.object_arch armv4t\nvorr d0,d0,d0")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])
AC_DEFUN([AS_ASM_ARM_MEDIA],
[
AC_MSG_CHECKING([if assembler supports ARMv6 media instructions on ARM])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("shadd8 r3,r3,r3")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])
AC_DEFUN([AS_ASM_ARM_MEDIA_FORCE],
[
AC_MSG_CHECKING([if assembler supports ARMv6 media instructions on ARM])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__(".arch armv6\n.object_arch armv4t\nshadd8 r3,r3,r3")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])
AC_DEFUN([AS_ASM_ARM_EDSP],
[
AC_MSG_CHECKING([if assembler supports EDSP instructions on ARM])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("qadd r3,r3,r3")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])
AC_DEFUN([AS_ASM_ARM_EDSP_FORCE],
[
AC_MSG_CHECKING([if assembler supports EDSP instructions on ARM])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__(".arch armv5te\n.object_arch armv4t\nqadd r3,r3,r3")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])
|
