[MCJIT] Simplify immediate decoding code in the RuntimeDyldMachO hierarchy.

Cleanup only: no functional change.

This patch makes RuntimeDyldMachO targets directly responsible for decoding
immediates, rather than letting them implement catch a callback from generic
code. Since this is a very target specific operation, it makes sense to let the
target-specific code drive it.

llvm-svn: 215255

1 files changed, 4 insertions, 2 deletions

diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
index bae2471054d..986daef8a90 100644
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
@@ -27,8 +27,10 @@ using namespace llvm::object;
 
 namespace llvm {
 
-int64_t RuntimeDyldMachO::decodeAddend(uint8_t *LocalAddress, unsigned NumBytes,
-                                       MachO::RelocationInfoType) const {
+int64_t RuntimeDyldMachO::memcpyAddend(const RelocationEntry &RE) const {
+  const SectionEntry &Section = Sections[RE.SectionID];
+  uint8_t *LocalAddress = Section.Address + RE.Offset;
+  unsigned NumBytes = 1 << RE.Size;
   int64_t Addend = 0;
   memcpy(&Addend, LocalAddress, NumBytes);
   return Addend;