//===-- unordsf2vfp.S - Implement unordsf2vfp -----------------------------===// // // 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 __unordsf2vfp(float a, float b); // // Returns one iff a or b is NaN // Uses Darwin calling convention where single precision arguments are passsed // like 32-bit ints // .syntax unified .p2align 2 DEFINE_COMPILERRT_FUNCTION(__unordsf2vfp) #if defined(COMPILER_RT_ARMHF_TARGET) vcmp.f32 s0, s1 #else vmov s14, r0 // move from GPR 0 to float register vmov s15, r1 // move from GPR 1 to float register vcmp.f32 s14, s15 #endif vmrs apsr_nzcv, fpscr ITE(vs) movvs r0, #1 // set result register to 1 if "overflow" (any NaNs) movvc r0, #0 bx lr END_COMPILERRT_FUNCTION(__unordsf2vfp) NO_EXEC_STACK_DIRECTIVE |