[HWASan] Fixed slow DWARF unwinding.
[HWASan] Fixed slow DWARF unwinding.

Summary: CFA was setup incorrectly, as there is an 8-byte gap at the top of the stack for SP 16-byte alignment purposes.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: kubamracek, javed.absar, #sanitizers, llvm-commits, pcc

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D60798

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@358535 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