30 lines
919 B
ArmAsm
30 lines
919 B
ArmAsm
//===-- floatsidfvfp.S - Implement floatsidfvfp ---------------------------===//
|
|
//
|
|
// 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 __floatsidfvfp(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(__floatsidfvfp)
|
|
vmov s15, r0 // move int to float register s15
|
|
vcvt.f64.s32 d7, s15 // convert 32-bit int in s15 to double in d7
|
|
vmov r0, r1, d7 // move d7 to result register pair r0/r1
|
|
bx lr
|
|
END_COMPILERRT_FUNCTION(__floatsidfvfp)
|
|
|
|
NO_EXEC_STACK_DIRECTIVE
|
|
|