| /* Configure soft-fp for building sqrtf128. Based on sfp-machine.h in |
| libgcc, with soft-float and other irrelevant parts removed. */ |
| |
| /* 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 |
| |
| #ifdef __x86_64__ |
| # define _FP_W_TYPE_SIZE 64 |
| # define _FP_W_TYPE unsigned long long |
| # define _FP_WS_TYPE signed long long |
| # define _FP_I_TYPE long long |
| |
| typedef int TItype __attribute__ ((mode (TI))); |
| typedef unsigned int UTItype __attribute__ ((mode (TI))); |
| |
| # define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype)) |
| |
| # 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_EX_SHIFT 7 |
| |
| # define _FP_DECL_EX \ |
| unsigned int _fcw __attribute__ ((unused)) = FP_RND_NEAREST; |
| |
| # define FP_RND_NEAREST 0 |
| # define FP_RND_ZERO 0x6000 |
| # define FP_RND_PINF 0x4000 |
| # define FP_RND_MINF 0x2000 |
| |
| # define FP_RND_MASK 0x6000 |
| |
| # define FP_INIT_ROUNDMODE \ |
| do { \ |
| __asm__ __volatile__ ("%vstmxcsr\t%0" : "=m" (_fcw)); \ |
| } while (0) |
| #else |
| # define _FP_W_TYPE_SIZE 32 |
| # define _FP_W_TYPE unsigned int |
| # define _FP_WS_TYPE signed int |
| # define _FP_I_TYPE int |
| |
| # define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ |
| __asm__ ("add{l} {%11,%3|%3,%11}\n\t" \ |
| "adc{l} {%9,%2|%2,%9}\n\t" \ |
| "adc{l} {%7,%1|%1,%7}\n\t" \ |
| "adc{l} {%5,%0|%0,%5}" \ |
| : "=r" ((USItype) (r3)), \ |
| "=&r" ((USItype) (r2)), \ |
| "=&r" ((USItype) (r1)), \ |
| "=&r" ((USItype) (r0)) \ |
| : "%0" ((USItype) (x3)), \ |
| "g" ((USItype) (y3)), \ |
| "%1" ((USItype) (x2)), \ |
| "g" ((USItype) (y2)), \ |
| "%2" ((USItype) (x1)), \ |
| "g" ((USItype) (y1)), \ |
| "%3" ((USItype) (x0)), \ |
| "g" ((USItype) (y0))) |
| # define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ |
| __asm__ ("add{l} {%8,%2|%2,%8}\n\t" \ |
| "adc{l} {%6,%1|%1,%6}\n\t" \ |
| "adc{l} {%4,%0|%0,%4}" \ |
| : "=r" ((USItype) (r2)), \ |
| "=&r" ((USItype) (r1)), \ |
| "=&r" ((USItype) (r0)) \ |
| : "%0" ((USItype) (x2)), \ |
| "g" ((USItype) (y2)), \ |
| "%1" ((USItype) (x1)), \ |
| "g" ((USItype) (y1)), \ |
| "%2" ((USItype) (x0)), \ |
| "g" ((USItype) (y0))) |
| # define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ |
| __asm__ ("sub{l} {%11,%3|%3,%11}\n\t" \ |
| "sbb{l} {%9,%2|%2,%9}\n\t" \ |
| "sbb{l} {%7,%1|%1,%7}\n\t" \ |
| "sbb{l} {%5,%0|%0,%5}" \ |
| : "=r" ((USItype) (r3)), \ |
| "=&r" ((USItype) (r2)), \ |
| "=&r" ((USItype) (r1)), \ |
| "=&r" ((USItype) (r0)) \ |
| : "0" ((USItype) (x3)), \ |
| "g" ((USItype) (y3)), \ |
| "1" ((USItype) (x2)), \ |
| "g" ((USItype) (y2)), \ |
| "2" ((USItype) (x1)), \ |
| "g" ((USItype) (y1)), \ |
| "3" ((USItype) (x0)), \ |
| "g" ((USItype) (y0))) |
| # define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ |
| __asm__ ("sub{l} {%8,%2|%2,%8}\n\t" \ |
| "sbb{l} {%6,%1|%1,%6}\n\t" \ |
| "sbb{l} {%4,%0|%0,%4}" \ |
| : "=r" ((USItype) (r2)), \ |
| "=&r" ((USItype) (r1)), \ |
| "=&r" ((USItype) (r0)) \ |
| : "0" ((USItype) (x2)), \ |
| "g" ((USItype) (y2)), \ |
| "1" ((USItype) (x1)), \ |
| "g" ((USItype) (y1)), \ |
| "2" ((USItype) (x0)), \ |
| "g" ((USItype) (y0))) |
| # define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \ |
| __asm__ ("add{l} {%4,%3|%3,%4}\n\t" \ |
| "adc{l} {$0,%2|%2,0}\n\t" \ |
| "adc{l} {$0,%1|%1,0}\n\t" \ |
| "adc{l} {$0,%0|%0,0}" \ |
| : "+r" ((USItype) (x3)), \ |
| "+&r" ((USItype) (x2)), \ |
| "+&r" ((USItype) (x1)), \ |
| "+&r" ((USItype) (x0)) \ |
| : "g" ((USItype) (i))) |
| |
| |
| # define _FP_MUL_MEAT_S(R,X,Y) \ |
| _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) |
| # define _FP_MUL_MEAT_D(R,X,Y) \ |
| _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) |
| # define _FP_MUL_MEAT_Q(R,X,Y) \ |
| _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) |
| |
| # define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y) |
| # define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) |
| # define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) |
| |
| # define _FP_NANFRAC_S _FP_QNANBIT_S |
| # define _FP_NANFRAC_D _FP_QNANBIT_D, 0 |
| /* Even if XFmode is 12byte, we have to pad it to |
| 16byte since soft-fp emulation is done in 16byte. */ |
| # define _FP_NANFRAC_E _FP_QNANBIT_E, 0, 0, 0 |
| # define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0 |
| |
| # define FP_EX_SHIFT 0 |
| |
| # define _FP_DECL_EX \ |
| unsigned short _fcw __attribute__ ((unused)) = FP_RND_NEAREST; |
| |
| # define FP_RND_NEAREST 0 |
| # define FP_RND_ZERO 0xc00 |
| # define FP_RND_PINF 0x800 |
| # define FP_RND_MINF 0x400 |
| |
| # define FP_RND_MASK 0xc00 |
| |
| # define FP_INIT_ROUNDMODE \ |
| do { \ |
| __asm__ __volatile__ ("fnstcw\t%0" : "=m" (_fcw)); \ |
| } while (0) |
| #endif |
| |
| #define _FP_KEEPNANFRACP 1 |
| #define _FP_QNANNEGATEDP 0 |
| |
| #define _FP_NANSIGN_S 1 |
| #define _FP_NANSIGN_D 1 |
| #define _FP_NANSIGN_E 1 |
| #define _FP_NANSIGN_Q 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_EX_ALL \ |
| (FP_EX_INVALID | FP_EX_DENORM | FP_EX_DIVZERO | FP_EX_OVERFLOW \ |
| | FP_EX_UNDERFLOW | FP_EX_INEXACT) |
| |
| void __sfp_handle_exceptions (int); |
| |
| #define FP_HANDLE_EXCEPTIONS \ |
| do { \ |
| if (__builtin_expect (_fex, 0)) \ |
| __sfp_handle_exceptions (_fex); \ |
| } while (0); |
| |
| #define FP_TRAPPING_EXCEPTIONS ((~_fcw >> FP_EX_SHIFT) & FP_EX_ALL) |
| |
| #define FP_ROUNDMODE (_fcw & FP_RND_MASK) |
| |
| #define _FP_TININESS_AFTER_ROUNDING 1 |
