| Current Path : /usr/src/contrib/compiler-rt/lib/arm/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/contrib/compiler-rt/lib/arm/extendsfdf2vfp.S |
//===-- extendsfdf2vfp.S - Implement extendsfdf2vfp -----------------------===// // // 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 double __extendsfdf2vfp(float a); // // Converts single precision float to double precision result. // Uses Darwin calling convention where a single precision parameter is // passed in a GPR and a double precision result is returned in R0/R1 pair. // .syntax unified .align 2 DEFINE_COMPILERRT_FUNCTION(__extendsfdf2vfp) vmov s15, r0 // load float register from R0 vcvt.f64.f32 d7, s15 // convert single to double vmov r0, r1, d7 // return result in r0/r1 pair bx lr