| /** |
| * This file has no copyright assigned and is placed in the Public Domain. |
| * This file is part of the mingw-w64 runtime package. |
| * No warranty is given; refer to the file DISCLAIMER.PD within this package. |
| */ |
| #include <math.h> |
| |
| double rint (double x) { |
| double retval = 0.0; |
| #if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__) |
| __asm__ __volatile__ ("frndint;" : "=t" (retval) : "0" (x)); |
| #elif defined(__arm__) || defined(_ARM_) |
| if (isnan(x) || isinf(x)) |
| return x; |
| float temp; |
| __asm__ __volatile__ ( |
| "vcvtr.s32.f64 %[tmp], %[src]\n\t" |
| "vcvt.f64.s32 %[dst], %[tmp]\n\t" |
| : [dst] "=w" (retval), [tmp] "=t" (temp) : [src] "w" (x)); |
| #elif defined(__aarch64__) || defined(_ARM64_) |
| __asm__ __volatile__ ("frintx %d0, %d1\n\t" : "=w" (retval) : "w" (x)); |
| #endif |
| return retval; |
| } |
