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 CONST_SECTION 11 12 .balign 16 13 two: 14 .single 2.0 15 16 #define REL_ADDR(_a) (_a)(%rip) 17 18 .text 19 .balign 4 20 DEFINE_COMPILERRT_FUNCTION(__floatundisf) 21 movq $1, %rsi 22 testq %rdi, %rdi 23 js 1f 24 cvtsi2ssq %rdi, %xmm0 25 ret 26 27 1: andq %rdi, %rsi 28 shrq %rdi 29 orq %rsi, %rdi 30 cvtsi2ssq %rdi, %xmm0 31 mulss REL_ADDR(two), %xmm0 32 ret 33 END_COMPILERRT_FUNCTION(__floatundisf) 34 35 #endif // __x86_64__ 36 37 NO_EXEC_STACK_DIRECTIVE 38 39
