support.

Caveat: Other than the existing segmented stacks support, no
claims are made of this working.

llvm-svn: 178744

backend output; there's no need to report a fatal error.  This reverts r178042.
Part of rdar://13295753 and rdar://13401547

llvm-svn: 178102

machine and one is required.
Part of rdar://13295753

llvm-svn: 178042

emit function names in .gcda files by default, and the flag turns that off!
Rename the flag to make it match what it actually does. This keeps the default
format compatible with gcc 4.2.

Also add a test for this flag.

llvm-svn: 177475

is enabled. Also add a new -test-coverage cc1 flag which makes testing coverage
possible and add our first clang-side coverage test.

llvm-svn: 177470

llvm-svn: 177004

llvm-svn: 176619

llvm-svn: 176174

MSan instrumentation is driven by the original code. We take every
incoming instruction and emit another instruction (or ten) next to
it, operating on the shadow values (but sometimes on the real values,
too). Two programs in one, essentially. There can be any kinds of
redundancies in the second one, so we just run whatever is normally
run at -O2, and then exclude some passes that do not help much with
benchmarks.

llvm-svn: 174049

Since ObjCARC has been refactored into its own library with its own declaration header, we need to include the declaration header alongside Scalar.h in BackendUtil.

llvm-svn: 173648

Add top-level Clang flag -f(no-)sanitize-address-zero-base-shadow that makes AddressSanitizer use bottom of the address space for the shadow memory. On Linux it can be used with -fPIE/-pie to improve performance.

llvm-svn: 172974

llvm-svn: 172808

rather than doing it ourselves. This reflects the API changes in r171681.

llvm-svn: 171683

passes to a create-pass function instead of a direct constructor call.

llvm-svn: 171622

reflect the migration in r171366.

Re-sort the #include lines to reflect the new paths.

llvm-svn: 171369

Removes a duplicate #include as well as cleaning up some sort order
regressions since I last ran the script over Clang.

llvm-svn: 171364

llvm-svn: 171184

llvm-svn: 171020

llvm/Target/TargetMachine.h will not provide "llvm/TargetTransformInfo.h" any more.

llvm-svn: 169816

This prevents the functions generated by that pass from using the red zone.
<rdar://problem/12843084>

llvm-svn: 169755

uncovered.

This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.

I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.

llvm-svn: 169237

Add Clang flags -fsanitize-blacklist and -fno-sanitize-blacklist. Make this flag usable for ASan. Blacklisting can be used to disable sanitizer checks for particular file/function/object.

llvm-svn: 169144

llvm-svn: 169124

1) init-order sanitizer: initialization-order checker.
Status: usable, but may produce false positives w/o proper blacklisting.
2) use-after-return sanitizer
Status: implemented, but heavily understed.
Should be optional, as it significanlty slows program down.
3) use-after-scope sanitizer
Status: in progress.

llvm-svn: 168950

llvm-svn: 168782

llvm-svn: 168510

more sense anyway - it determines how expressions are codegen'd. It also ensures
that -ffp-contract=fast has the intended effect when compiling LLVM IR.

llvm-svn: 168027

us from having to make any backend changes.

llvm-svn: 167623

rdar://12340498

llvm-svn: 167619

*Sanitizer to Sanitize* in preparation for later patches.

llvm-svn: 167405

Many of our tests specify triples that are not built into clang.
In this commit we allow clang to fail loading the triple if we are only
using clang to emit llvm ir.

llvm-svn: 166543

and use it to initialize the TargetTransformInfo analysis pass.
We need the TTI information for the loop vectorizer.

rdar://12464901

llvm-svn: 166532

llvm-svn: 166497

 - We create two TargetLoweringInfo instances for different pass managers, and
   they weren't consistent (the one for codegen didn't have the right info). I'm
   not sure this mattered anywhere in practice.

llvm-svn: 166299

llvm-svn: 166263

Nadav's llvm change r165665 caused problems with an LTO bootstrap of clang,
so I'm reverting it for now, along with follow-on patches like this one.

llvm-svn: 166164

[asan] make AddressSanitizer to be a FunctionPass instead of ModulePass. clang part: for FunctionPass we need to run asan at a different point, otherwise it will run before inlining

llvm-svn: 165937

llvm-svn: 165741

llvm-svn: 165395

PR9673

llvm-svn: 162285