| 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 | // |
|---|
| 21 | DEFINE_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 | |
|---|
| 44 | NO_EXEC_STACK_DIRECTIVE |
|---|
| 45 | |
|---|
| 46 | |
|---|
