6 Commits

Author	SHA1	Message	Date
Evgeniy Stepanov	c667c1f47a	Hardware-assisted AddressSanitizer (llvm part). ... Summary: This is LLVM instrumentation for the new HWASan tool. It is basically a stripped down copy of ASan at this point, w/o stack or global support. Instrumenation adds a global constructor + runtime callbacks for every load and store. HWASan comes with its own IR attribute. A brief design document can be found in clang/docs/HardwareAssistedAddressSanitizerDesign.rst (submitted earlier). Reviewers: kcc, pcc, alekseyshl Subscribers: srhines, mehdi_amini, mgorny, javed.absar, eraman, llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D40932 llvm-svn: 320217	2017-12-09 00:21:41 +00:00
Matt Arsenault	f10061ec70	Add address space mangling to lifetime intrinsics ... In preparation for allowing allocas to have non-0 addrspace. llvm-svn: 299876	2017-04-10 20:18:21 +00:00
Vitaly Buka	0ab23cf1c8	Do not remove empty lifetime.start/lifetime.end ranges ... Summary: Asan stack-use-after-scope check should poison alloca even if there is no access between start and end. This is possible for code like this: for (int i = 0; i < 3; i++) { int x; p = &x; } "Loop Invariant Code Motion" will move "p = &x;" out of the loop, making start/end range empty. PR27453 Reviewers: eugenis Differential Revision: https://reviews.llvm.org/D22842 llvm-svn: 277072	2016-07-28 22:59:03 +00:00
Vitaly Buka	2fae6a7702	Should be committed as one CL. ... This reverts commits r277068 r277067 r277066. llvm-svn: 277071	2016-07-28 22:59:01 +00:00
Vitaly Buka	f0500b6ae5	Do not remove empty lifetime.start/lifetime.end ranges ... Summary: Asan stack-use-after-scope check should poison alloca even if there is no access between start and end. This is possible for code like this: for (int i = 0; i < 3; i++) { int x; p = &x; } "Loop Invariant Code Motion" will move "p = &x;" out of the loop, making start/end range empty. PR27453 Reviewers: eugenis Differential Revision: https://reviews.llvm.org/D22842 llvm-svn: 277068	2016-07-28 22:50:48 +00:00
Vitaly Buka	3645793872	maned ... llvm-svn: 277067	2016-07-28 22:50:45 +00:00