33 lines
1 KiB
C
33 lines
1 KiB
C
|
/**
|
||
|
|
* 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>
|
||
|
|
|
||
|
|
#if defined(__arm__) || defined(_ARM_)
|
||
|
|
/* This works around a compiler bug */
|
||
|
|
long __lrintf_internal( float x );
|
||
|
|
asm(".def __lrintf_internal; .scl 2; .type 32; .endef\n"
|
||
|
|
"\t.text\n"
|
||
|
|
"\t.align 4\n"
|
||
|
|
"\t.globl __lrintf_internal\n"
|
||
|
|
"__lrintf_internal:\n"
|
||
|
|
"\tvcvtr.s32.f32 s0, s0\n"
|
||
|
|
"\tfmrs r0, s0\n"
|
||
|
|
"\tbx lr");
|
||
|
|
#endif /* defined(__arm__) || defined(_ARM_) */
|
||
|
|
|
||
|
|
long lrintf (float x)
|
||
|
|
{
|
||
|
|
long retval = 0l;
|
||
|
|
#if defined (__x86_64__) && defined (__CYGWIN__)
|
||
|
|
__asm__ __volatile__ ("fistpll %0" : "=m" (retval) : "t" (x) : "st");
|
||
|
|
#elif defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__)
|
||
|
|
__asm__ __volatile__ ("fistpl %0" : "=m" (retval) : "t" (x) : "st");
|
||
|
|
#elif defined(__arm__) || defined(_ARM_)
|
||
|
|
retval = __lrintf_internal(x);
|
||
|
|
#endif
|
||
|
|
return retval;
|
||
|
|
}
|