[TSan] Improve handling of stack pointer mangling in {set,long}jmp, pt.5
[TSan] Improve handling of stack pointer mangling in {set,long}jmp, pt.5

Remove unnecessary computation of mangled SP for ARM64 architecture.

Reviewed By: dvyukov

Differential Revision: https://reviews.llvm.org/D64022

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@365230 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt