typo in the gcc handmade regalloc trigger
[libav.git] / libavcodec / ppc / gcc_fixes.h
1 /*
2 * gcc fixes for altivec.
3 * Used to workaround broken gcc (FSF gcc-3 pre gcc-3.3)
4 * and to stay somewhat compatible with Darwin.
5 */
6
7 #ifndef _GCC_FIXES_
8 #define _GCC_FIXES_
9
10 #ifdef HAVE_ALTIVEC_H
11 #include <altivec.h>
12 #endif
13
14 #ifdef CONFIG_DARWIN
15 # ifndef __MWERKS__
16 # define AVV(x...) (x)
17 # else
18 # define AVV
19 # endif
20 #define REG_v(a) asm ( #a )
21 #else
22
23 #define AVV(x...) {x}
24
25 #if (__GNUC__ < 4)
26 # define REG_v(a)
27 #else
28 # define REG_v(a) asm ( #a )
29 #endif
30
31 #if (__GNUC__ * 100 + __GNUC_MINOR__ < 303)
32
33 /* This code was provided to me by Bartosch Pixa
34 * as a separate header file (broken_mergel.h).
35 * thanks to lu_zero for the workaround.
36 *
37 * See this mail for more information:
38 * http://gcc.gnu.org/ml/gcc/2003-04/msg00967.html
39 */
40
41 static inline vector signed char ff_vmrglb (vector signed char const A,
42 vector signed char const B)
43 {
44 static const vector unsigned char lowbyte = {
45 0x08, 0x18, 0x09, 0x19, 0x0a, 0x1a, 0x0b, 0x1b,
46 0x0c, 0x1c, 0x0d, 0x1d, 0x0e, 0x1e, 0x0f, 0x1f
47 };
48 return vec_perm (A, B, lowbyte);
49 }
50
51 static inline vector signed short ff_vmrglh (vector signed short const A,
52 vector signed short const B)
53 {
54 static const vector unsigned char lowhalf = {
55 0x08, 0x09, 0x18, 0x19, 0x0a, 0x0b, 0x1a, 0x1b,
56 0x0c, 0x0d, 0x1c, 0x1d, 0x0e, 0x0f, 0x1e, 0x1f
57 };
58 return vec_perm (A, B, lowhalf);
59 }
60
61 static inline vector signed int ff_vmrglw (vector signed int const A,
62 vector signed int const B)
63 {
64 static const vector unsigned char lowword = {
65 0x08, 0x09, 0x0a, 0x0b, 0x18, 0x19, 0x1a, 0x1b,
66 0x0c, 0x0d, 0x0e, 0x0f, 0x1c, 0x1d, 0x1e, 0x1f
67 };
68 return vec_perm (A, B, lowword);
69 }
70 /*#define ff_vmrglb ff_vmrglb
71 #define ff_vmrglh ff_vmrglh
72 #define ff_vmrglw ff_vmrglw
73 */
74 #undef vec_mergel
75
76 #define vec_mergel(a1, a2) \
77 __ch (__bin_args_eq (vector signed char, (a1), vector signed char, (a2)), \
78 ((vector signed char) ff_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \
79 __ch (__bin_args_eq (vector unsigned char, (a1), vector unsigned char, (a2)), \
80 ((vector unsigned char) ff_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \
81 __ch (__bin_args_eq (vector signed short, (a1), vector signed short, (a2)), \
82 ((vector signed short) ff_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \
83 __ch (__bin_args_eq (vector unsigned short, (a1), vector unsigned short, (a2)), \
84 ((vector unsigned short) ff_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \
85 __ch (__bin_args_eq (vector float, (a1), vector float, (a2)), \
86 ((vector float) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \
87 __ch (__bin_args_eq (vector signed int, (a1), vector signed int, (a2)), \
88 ((vector signed int) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \
89 __ch (__bin_args_eq (vector unsigned int, (a1), vector unsigned int, (a2)), \
90 ((vector unsigned int) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \
91 __altivec_link_error_invalid_argument ())))))))
92
93 #endif
94
95 #endif /* CONFIG_DARWIN */
96
97 #ifndef __MWERKS__
98 #define const_vector const vector
99 #else
100 #define const_vector vector
101 #endif
102
103 #endif /* _GCC_FIXES_ */