| Daniel Dunbar | 805c494 | 2009-10-27 17:49:19 +0000 | [diff] [blame^] | 1 | //===-- restFP.S - Implement restFP ---------------------------------------===// |
| Daniel Dunbar | fd08999 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 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 | .globl restFP |
| 22 | .private_extern restFP |
| 23 | restFP: stfd f14,-144(r1) |
| 24 | stfd f15,-136(r1) |
| 25 | stfd f16,-128(r1) |
| 26 | stfd f17,-120(r1) |
| 27 | stfd f18,-112(r1) |
| 28 | stfd f19,-104(r1) |
| 29 | stfd f20,-96(r1) |
| 30 | stfd f21,-88(r1) |
| 31 | stfd f22,-80(r1) |
| 32 | stfd f23,-72(r1) |
| 33 | stfd f24,-64(r1) |
| 34 | stfd f25,-56(r1) |
| 35 | stfd f26,-48(r1) |
| 36 | stfd f27,-40(r1) |
| 37 | stfd f28,-32(r1) |
| 38 | stfd f29,-24(r1) |
| 39 | stfd f30,-16(r1) |
| 40 | stfd f31,-8(r1) |
| 41 | lwz r0,8(r1) |
| 42 | mtlr r0 |
| 43 | blr |