1 //===-- restFP.S - Implement restFP ---------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "../assembly.h" 11 12 // 13 // Helper function used by compiler to restore ppc floating point registers at 14 // the end of the function epilog. This function returns to the address 15 // in the LR slot. So a function epilog must branch (b) not branch and link 16 // (bl) to this function. 17 // If the compiler wants to restore f27..f31, it does a "b restFP+52" 18 // 19 // This function should never be exported by a shared library. Each linkage 20 // unit carries its own copy of this function. 21 // 22 DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(restFP) 23 lfd f14,-144(r1) 24 lfd f15,-136(r1) 25 lfd f16,-128(r1) 26 lfd f17,-120(r1) 27 lfd f18,-112(r1) 28 lfd f19,-104(r1) 29 lfd f20,-96(r1) 30 lfd f21,-88(r1) 31 lfd f22,-80(r1) 32 lfd f23,-72(r1) 33 lfd f24,-64(r1) 34 lfd f25,-56(r1) 35 lfd f26,-48(r1) 36 lfd f27,-40(r1) 37 lfd f28,-32(r1) 38 lfd f29,-24(r1) 39 lfd f30,-16(r1) 40 lfd f31,-8(r1) 41 lwz r0,8(r1) 42 mtlr r0 43 blr 44 45 NO_EXEC_STACK_DIRECTIVE 46 47
