a164f470e6
Reviewers: rengolin, compnerd Reviewed By: compnerd Subscribers: hans, aemerson Differential Revision: https://reviews.llvm.org/D29869 llvm-svn: 294886
35 lines
1015 B
ArmAsm
35 lines
1015 B
ArmAsm
//===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===//
|
|
//
|
|
// 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 float __subsf3vfp(float a, float b);
|
|
//
|
|
// Returns the difference between two single precision floating point numbers
|
|
// using the Darwin calling convention where single arguments are passsed
|
|
// like 32-bit ints.
|
|
//
|
|
.syntax unified
|
|
.p2align 2
|
|
DEFINE_COMPILERRT_FUNCTION(__subsf3vfp)
|
|
#if defined(COMPILER_RT_ARMHF_TARGET)
|
|
vsub.f32 s0, s0, s1
|
|
#else
|
|
vmov s14, r0 // move first param from r0 into float register
|
|
vmov s15, r1 // move second param from r1 into float register
|
|
vsub.f32 s14, s14, s15
|
|
vmov r0, s14 // move result back to r0
|
|
#endif
|
|
bx lr
|
|
END_COMPILERRT_FUNCTION(__subsf3vfp)
|
|
|
|
NO_EXEC_STACK_DIRECTIVE
|
|
|