1//===-- restFP.S - Implement restFP ---------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "../assembly.h"
10
11//
12// Helper function used by compiler to restore ppc floating point registers at
13// the end of the function epilog.  This function returns to the address
14// in the LR slot.  So a function epilog must branch (b) not branch and link
15// (bl) to this function.
16// If the compiler wants to restore f27..f31, it does a "b restFP+52"
17//
18// This function should never be exported by a shared library.  Each linkage
19// unit carries its own copy of this function.
20//
21DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(restFP)
22        lfd    f14,-144(r1)
23        lfd    f15,-136(r1)
24        lfd    f16,-128(r1)
25        lfd    f17,-120(r1)
26        lfd    f18,-112(r1)
27        lfd    f19,-104(r1)
28        lfd    f20,-96(r1)
29        lfd    f21,-88(r1)
30        lfd    f22,-80(r1)
31        lfd    f23,-72(r1)
32        lfd    f24,-64(r1)
33        lfd    f25,-56(r1)
34        lfd    f26,-48(r1)
35        lfd    f27,-40(r1)
36        lfd    f28,-32(r1)
37        lfd    f29,-24(r1)
38        lfd    f30,-16(r1)
39        lfd    f31,-8(r1)
40        lwz     r0,8(r1)
41        mtlr	r0
42        blr
43
44NO_EXEC_STACK_DIRECTIVE
45
46