//===-- unorddf2vfp.S - Implement unorddf2vfp ------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "../assembly.h" // // extern int __unorddf2vfp(double a, double b); // // Returns one iff a or b is NaN // Uses Darwin calling convention where double precision arguments are passsed // like in GPR pairs. // .syntax unified .p2align 2 DEFINE_COMPILERRT_FUNCTION(__unorddf2vfp) vmov d6, r0, r1 // load r0/r1 pair in double register vmov d7, r2, r3 // load r2/r3 pair in double register vcmp.f64 d6, d7 vmrs apsr_nzcv, fpscr movvs r0, #1 // set result register to 1 if "overflow" (any NaNs) movvc r0, #0 bx lr END_COMPILERRT_FUNCTION(__unorddf2vfp) |