1 1.1 joerg //===-- ltsf2vfp.S - Implement ltsf2vfp -----------------------------------===// 2 1.1 joerg // 3 1.1 joerg // The LLVM Compiler Infrastructure 4 1.1 joerg // 5 1.1 joerg // This file is dual licensed under the MIT and the University of Illinois Open 6 1.1 joerg // Source Licenses. See LICENSE.TXT for details. 7 1.1 joerg // 8 1.1 joerg //===----------------------------------------------------------------------===// 9 1.1 joerg 10 1.1 joerg #include "../assembly.h" 11 1.1 joerg 12 1.1 joerg // 13 1.1 joerg // extern int __ltsf2vfp(float a, float b); 14 1.1 joerg // 15 1.1 joerg // Returns one iff a < b and neither is NaN. 16 1.1 joerg // Uses Darwin calling convention where single precision arguments are passsed 17 1.1 joerg // like 32-bit ints 18 1.1 joerg // 19 1.1 joerg .syntax unified 20 1.1.1.2 joerg .p2align 2 21 1.1 joerg DEFINE_COMPILERRT_FUNCTION(__ltsf2vfp) 22 1.1 joerg vmov s14, r0 // move from GPR 0 to float register 23 1.1 joerg vmov s15, r1 // move from GPR 1 to float register 24 1.1 joerg vcmp.f32 s14, s15 25 1.1 joerg vmrs apsr_nzcv, fpscr 26 1.1 joerg movmi r0, #1 // set result register to 1 if equal 27 1.1 joerg movpl r0, #0 28 1.1 joerg bx lr 29 1.1 joerg END_COMPILERRT_FUNCTION(__ltsf2vfp) 30
Indexes created Tue Sep 23 14:10:03 GMT 2025