| //===-- floatunssidfvfp.S - Implement floatunssidfvfp ---------------------===// |
| // |
| // 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 __floatunssidfvfp(unsigned int a); |
| // |
| // Converts a 32-bit int to a double precision float. |
| // Uses Darwin calling convention where a double precision result is |
| // return in GPR register pair. |
| // |
| .syntax unified |
| .p2align 2 |
| DEFINE_COMPILERRT_FUNCTION(__floatunssidfvfp) |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| vmov s0, r0 |
| vcvt.f64.u32 d0, s0 |
| #else |
| vmov s15, r0 // move int to float register s15 |
| vcvt.f64.u32 d7, s15 // convert 32-bit int in s15 to double in d7 |
| vmov r0, r1, d7 // move d7 to result register pair r0/r1 |
| #endif |
| bx lr |
| END_COMPILERRT_FUNCTION(__floatunssidfvfp) |
| |
| NO_EXEC_STACK_DIRECTIVE |
| |
