1// This file is dual licensed under the MIT and the University of Illinois Open 2// Source Licenses. See LICENSE.TXT for details. 3 4#include "../assembly.h" 5 6// float __floatundisf(du_int a); 7 8#ifdef __x86_64__ 9 10#if defined(__APPLE__) 11 .literal4 12#elif defined(__ELF__) 13 .section .rodata 14#else 15 .section .rdata,"rd" 16#endif 17 18 .balign 16 19two: 20 .single 2.0 21 22#define REL_ADDR(_a) (_a)(%rip) 23 24.text 25.balign 4 26DEFINE_COMPILERRT_FUNCTION(__floatundisf) 27 movq $1, %rsi 28 testq %rdi, %rdi 29 js 1f 30 cvtsi2ssq %rdi, %xmm0 31 ret 32 331: andq %rdi, %rsi 34 shrq %rdi 35 orq %rsi, %rdi 36 cvtsi2ssq %rdi, %xmm0 37 mulss REL_ADDR(two), %xmm0 38 ret 39END_COMPILERRT_FUNCTION(__floatundisf) 40 41#endif // __x86_64__ 42