minix/sys/external/bsd/compiler_rt/dist/lib/ppc/restFP.S
Lionel Sambuc 4684ddb6aa LLVM Minix changes
- import libcxx
 - reduce targets to the one when compiled as a tools

Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
2014-07-28 17:05:59 +02:00

43 lines
1.4 KiB
ArmAsm

//===-- restFP.S - Implement restFP ---------------------------------------===//
//
// 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"
//
// Helper function used by compiler to restore ppc floating point registers at
// the end of the function epilog. This function returns to the address
// in the LR slot. So a function epilog must branch (b) not branch and link
// (bl) to this function.
// If the compiler wants to restore f27..f31, it does a "b restFP+52"
//
// This function should never be exported by a shared library. Each linkage
// unit carries its own copy of this function.
//
DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(restFP)
lfd f14,-144(r1)
lfd f15,-136(r1)
lfd f16,-128(r1)
lfd f17,-120(r1)
lfd f18,-112(r1)
lfd f19,-104(r1)
lfd f20,-96(r1)
lfd f21,-88(r1)
lfd f22,-80(r1)
lfd f23,-72(r1)
lfd f24,-64(r1)
lfd f25,-56(r1)
lfd f26,-48(r1)
lfd f27,-40(r1)
lfd f28,-32(r1)
lfd f29,-24(r1)
lfd f30,-16(r1)
lfd f31,-8(r1)
lwz r0,8(r1)
mtlr r0
blr