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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgcc/] [config/] [ia64/] [sfp-machine.h] - Blame information for rev 849

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#define _FP_W_TYPE_SIZE         64
#define _FP_W_TYPE              unsigned long
#define _FP_WS_TYPE             signed long
#define _FP_I_TYPE              long
 
typedef int TItype __attribute__ ((mode (TI)));
typedef unsigned int UTItype __attribute__ ((mode (TI)));
 
#define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype))
 
/* The type of the result of a floating point comparison.  This must
   match `__libgcc_cmp_return__' in GCC for the target.  */
typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
#define CMPtype __gcc_CMPtype
 
#define _FP_MUL_MEAT_Q(R,X,Y)                           \
  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
 
#define _FP_DIV_MEAT_Q(R,X,Y)   _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
 
#define _FP_NANFRAC_S           _FP_QNANBIT_S
#define _FP_NANFRAC_D           _FP_QNANBIT_D
#define _FP_NANFRAC_E           _FP_QNANBIT_E, 0
#define _FP_NANFRAC_Q           _FP_QNANBIT_Q, 0
#define _FP_NANSIGN_S           1
#define _FP_NANSIGN_D           1
#define _FP_NANSIGN_E           1
#define _FP_NANSIGN_Q           1
 
#define _FP_KEEPNANFRACP 1
 
/* Here is something Intel misdesigned: the specs don't define
   the case where we have two NaNs with same mantissas, but
   different sign. Different operations pick up different NaNs.  */
#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
  do {                                                          \
    if (_FP_FRAC_GT_##wc(X, Y)                                  \
        || (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \
      {                                                         \
        R##_s = X##_s;                                          \
        _FP_FRAC_COPY_##wc(R,X);                                \
      }                                                         \
    else                                                        \
      {                                                         \
        R##_s = Y##_s;                                          \
        _FP_FRAC_COPY_##wc(R,Y);                                \
      }                                                         \
    R##_c = FP_CLS_NAN;                                         \
  } while (0)
 
#define FP_EX_INVALID           0x01
#define FP_EX_DENORM            0x02
#define FP_EX_DIVZERO           0x04
#define FP_EX_OVERFLOW          0x08
#define FP_EX_UNDERFLOW         0x10
#define FP_EX_INEXACT           0x20
 
#define FP_HANDLE_EXCEPTIONS                                            \
  do {                                                                  \
    double tmp, dummy;                                                  \
    if (_fex & FP_EX_INVALID)                                           \
      {                                                                 \
        tmp = 0.0;                                                      \
        __asm__ __volatile__ ("frcpa.s0 %0,p1=f0,f0"                    \
                              : "=f" (tmp) : : "p1" );                  \
      }                                                                 \
    if (_fex & FP_EX_DIVZERO)                                           \
      {                                                                 \
        __asm__ __volatile__ ("frcpa.s0 %0,p1=f1,f0"                    \
                              : "=f" (tmp) : : "p1" );                  \
      }                                                                 \
    if (_fex & FP_EX_OVERFLOW)                                          \
      {                                                                 \
        dummy = __DBL_MAX__;                                            \
        __asm__ __volatile__ ("fadd.d.s0 %0=%1,%1"                      \
                              : "=f" (dummy) : "0" (dummy));             \
      }                                                                 \
    if (_fex & FP_EX_UNDERFLOW)                                         \
      {                                                                 \
        dummy = __DBL_MIN__;                                            \
        __asm__ __volatile__ ("fnma.d.s0 %0=%1,%1,f0"                   \
                              : "=f" (tmp) : "f" (dummy));              \
      }                                                                 \
    if (_fex & FP_EX_INEXACT)                                           \
      {                                                                 \
        dummy = __DBL_MAX__;                                            \
        __asm__ __volatile__ ("fsub.d.s0 %0=%1,f1"                      \
                              : "=f" (dummy) : "0" (dummy));             \
      }                                                                 \
  } while (0)
 
#define FP_RND_NEAREST          0
#define FP_RND_ZERO             0xc00L
#define FP_RND_PINF             0x800L
#define FP_RND_MINF             0x400L
 
#define _FP_DECL_EX \
  unsigned long int _fpsr __attribute__ ((unused)) = FP_RND_NEAREST
 
#define FP_INIT_ROUNDMODE                       \
  do {                                          \
    __asm__ __volatile__ ("mov.m %0=ar.fpsr"    \
                          : "=r" (_fpsr));      \
  } while (0)
 
#define FP_ROUNDMODE            (_fpsr & 0xc00L)
 
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN    4321
 
#define __BYTE_ORDER __LITTLE_ENDIAN
 
/* Define ALIASNAME as a strong alias for NAME.  */
#define strong_alias(name, aliasname) _strong_alias(name, aliasname)
#define _strong_alias(name, aliasname) \
  extern __typeof (name) aliasname __attribute__ ((alias (#name)));

Line No.	Rev	Author	Line
1	734	jeremybenn	`#define _FP_W_TYPE_SIZE 64`
2			`#define _FP_W_TYPE unsigned long`
3			`#define _FP_WS_TYPE signed long`
4			`#define _FP_I_TYPE long`
5
6			`typedef int TItype __attribute__ ((mode (TI)));`
7			`typedef unsigned int UTItype __attribute__ ((mode (TI)));`
8
9			`#define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype))`
10
11			`/* The type of the result of a floating point comparison. This must`
12			match `__libgcc_cmp_return__' in GCC for the target. */
13			`typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));`
14			`#define CMPtype __gcc_CMPtype`
15
16			`#define _FP_MUL_MEAT_Q(R,X,Y) \`
17			`_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)`
18
19			`#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)`
20
21			`#define _FP_NANFRAC_S _FP_QNANBIT_S`
22			`#define _FP_NANFRAC_D _FP_QNANBIT_D`
23			`#define _FP_NANFRAC_E _FP_QNANBIT_E, 0`
24			`#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0`
25			`#define _FP_NANSIGN_S 1`
26			`#define _FP_NANSIGN_D 1`
27			`#define _FP_NANSIGN_E 1`
28			`#define _FP_NANSIGN_Q 1`
29
30			`#define _FP_KEEPNANFRACP 1`
31
32			`/* Here is something Intel misdesigned: the specs don't define`
33			`the case where we have two NaNs with same mantissas, but`
34			`different sign. Different operations pick up different NaNs. */`
35			`#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \`
36			`do { \`
37			`if (_FP_FRAC_GT_##wc(X, Y) \`
38			`\|\| (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' \|\| OP == '*'))) \`
39			`{ \`
40			`R##_s = X##_s; \`
41			`_FP_FRAC_COPY_##wc(R,X); \`
42			`} \`
43			`else \`
44			`{ \`
45			`R##_s = Y##_s; \`
46			`_FP_FRAC_COPY_##wc(R,Y); \`
47			`} \`
48			`R##_c = FP_CLS_NAN; \`
49			`} while (0)`
50
51			`#define FP_EX_INVALID 0x01`
52			`#define FP_EX_DENORM 0x02`
53			`#define FP_EX_DIVZERO 0x04`
54			`#define FP_EX_OVERFLOW 0x08`
55			`#define FP_EX_UNDERFLOW 0x10`
56			`#define FP_EX_INEXACT 0x20`
57
58			`#define FP_HANDLE_EXCEPTIONS \`
59			`do { \`
60			`double tmp, dummy; \`
61			`if (_fex & FP_EX_INVALID) \`
62			`{ \`
63			`tmp = 0.0; \`
64			`__asm__ __volatile__ ("frcpa.s0 %0,p1=f0,f0" \`
65			`: "=f" (tmp) : : "p1" ); \`
66			`} \`
67			`if (_fex & FP_EX_DIVZERO) \`
68			`{ \`
69			`__asm__ __volatile__ ("frcpa.s0 %0,p1=f1,f0" \`
70			`: "=f" (tmp) : : "p1" ); \`
71			`} \`
72			`if (_fex & FP_EX_OVERFLOW) \`
73			`{ \`
74			`dummy = __DBL_MAX__; \`
75			`__asm__ __volatile__ ("fadd.d.s0 %0=%1,%1" \`
76			`: "=f" (dummy) : "0" (dummy)); \`
77			`} \`
78			`if (_fex & FP_EX_UNDERFLOW) \`
79			`{ \`
80			`dummy = __DBL_MIN__; \`
81			`__asm__ __volatile__ ("fnma.d.s0 %0=%1,%1,f0" \`
82			`: "=f" (tmp) : "f" (dummy)); \`
83			`} \`
84			`if (_fex & FP_EX_INEXACT) \`
85			`{ \`
86			`dummy = __DBL_MAX__; \`
87			`__asm__ __volatile__ ("fsub.d.s0 %0=%1,f1" \`
88			`: "=f" (dummy) : "0" (dummy)); \`
89			`} \`
90			`} while (0)`
91
92			`#define FP_RND_NEAREST 0`
93			`#define FP_RND_ZERO 0xc00L`
94			`#define FP_RND_PINF 0x800L`
95			`#define FP_RND_MINF 0x400L`
96
97			`#define _FP_DECL_EX \`
98			`unsigned long int _fpsr __attribute__ ((unused)) = FP_RND_NEAREST`
99
100			`#define FP_INIT_ROUNDMODE \`
101			`do { \`
102			`__asm__ __volatile__ ("mov.m %0=ar.fpsr" \`
103			`: "=r" (_fpsr)); \`
104			`} while (0)`
105
106			`#define FP_ROUNDMODE (_fpsr & 0xc00L)`
107
108			`#define __LITTLE_ENDIAN 1234`
109			`#define __BIG_ENDIAN 4321`
110
111			`#define __BYTE_ORDER __LITTLE_ENDIAN`
112
113			`/* Define ALIASNAME as a strong alias for NAME. */`
114			`#define strong_alias(name, aliasname) _strong_alias(name, aliasname)`
115			`#define _strong_alias(name, aliasname) \`
116			`extern __typeof (name) aliasname __attribute__ ((alias (#name)));`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgcc/] [config/] [ia64/] [sfp-machine.h] - Blame information for rev 849