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528 Commits

Author SHA1 Message Date
Alexey Samsonov
d6f62c8da5 [ASan] Simplify check added in r168861. Bail out from module pass early if the module is blacklisted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168913 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 18:27:01 +00:00
Matt Beaumont-Gay
cb5d04a904 Apply Takumi's patch to suppress unused-variable warnings in -Asserts builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168911 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 18:15:49 +00:00
Alexey Samsonov
ee548275c6 Add options to AddressSanitizer passes to make them configurable by frontend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168910 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 18:14:24 +00:00
Evgeniy Stepanov
2aac385417 [msan] Handle vector manipulation instructions. 
Handle insertelement, extractelement, shufflevector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168889 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 15:22:06 +00:00
Evgeniy Stepanov
b096a9d02f [msan] Fix getOriginForNaryOp. 
The old version failed on a 3-arg instruction with (-1, 0, 0) shadows (it would
pick the 3rd operand origin irrespective of its shadow).
    
The new version always picks the origin of the rightmost poisoned operand.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168887 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 14:44:00 +00:00
Evgeniy Stepanov
6d988b423a [msan] Basic handling of inline asm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168884 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 14:32:03 +00:00
Evgeniy Stepanov
84af05e1ba [msan] Propagate shadow through (x<0) and (x>=0) comparisons. 
This is a special case of signed relational comparison where result
only depends on the sign of x.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168881 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 14:25:47 +00:00
Evgeniy Stepanov
3a10b49781 [msan] Fix shadow & origin store & load alignment. 
This change ensures that shadow memory accesses have the same alignment
as corresponding app memory accesses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168880 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 14:05:53 +00:00
Evgeniy Stepanov
af4451b37e [msan] Optimize getOriginPtr. 
Rewrite getOriginPtr in a way that lets subsequent optimizations factor out
the common part of Shadow and Origin address calculation. Improves perf by
up to 5%.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168879 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 13:43:05 +00:00
Evgeniy Stepanov
2ea25f2f1c [msan] Fix a few compilation warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168878 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 13:12:03 +00:00
Evgeniy Stepanov
2e815e7cf4 [msan] Transform memcpy and memset to library calls. 
This was already done for memmove, where it is required for correctness.
This change improves performance by avoiding copyingthe same memory twice.
Also, the library functions are given __msan_ prefix to prevent instcombine
pass from converting them back to intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168876 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 12:49:04 +00:00
Evgeniy Stepanov
f62b4e3ee3 [msan] Make sure that report callbacks do not get merged. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168873 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 12:30:18 +00:00
Evgeniy Stepanov
aa4f97d6ed Initial commit of MemorySanitizer. 
Compiler pass only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168866 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 09:57:20 +00:00
Kostya Serebryany
8b390ffbfd [asan/tsan] initialize the asan/tsan callbacks in runOnFunction as opposed to doInitialization. This is required to allow the upcoming changes in PassManager behavior 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168864 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 09:54:21 +00:00
Kostya Serebryany
5085eb80ab [asan] when checking the noreturn attribute on the call, also check it on the callee 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168861 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 08:57:20 +00:00
Nick Lewycky
7b09b97bdf Issue a fatal error if the line doesn't have a regular expression. 
Also a couple not-user-visible changes; using empty() instead of size(), and
make inSection() not insert NULL Regex*'s into StringMap when doing a lookup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168833 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 00:01:38 +00:00
Kostya Serebryany
1416edc30a [asan] Split AddressSanitizer into two passes (FunctionPass, ModulePass), LLVM part. This requires a clang part which will follow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168781 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-28 10:31:36 +00:00
Dmitry Vyukov
b10675ef14 tsan: instrument atomic nand operation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168684 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-27 08:09:25 +00:00
Matt Beaumont-Gay
70af909f67 Remove stray trailing backslash 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168592 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-26 16:27:22 +00:00
Dmitry Vyukov
9a33f9f980 tsan: fix lint warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168590 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-26 14:55:26 +00:00
Dmitry Vyukov
6702e53926 [tsan] add fail order to compare_exchange 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168586 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-26 11:36:19 +00:00
Joey Gouly
f284aefa11 Remove unused parameter Penalty from the BoundsChecking pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168511 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-23 10:47:35 +00:00
NAKAMURA Takumi
d59c07255e llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp: Prune AddressSanitizerCreateGlobalRedzonesPass::ID. [-Wunused-variable] 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168499 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-22 14:18:25 +00:00
Kostya Serebryany
b9a12ea0fd [asan] rip off the creation of global redzones from the main AddressSanitizer class into a separate class. The intent is to make it a separate ModulePass in the following commmits 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168484 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-22 03:18:50 +00:00
Kostya Serebryany
51c7c65e32 [asan] use names of globals instead of an external set to distinguish the globals generated by asan 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168368 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-20 14:16:08 +00:00
Kostya Serebryany
407790604b [asan] don't instrument linker-initialized globals even with external linkage in -asan-initialization-order mode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168367 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-20 13:11:32 +00:00
Kostya Serebryany
ca23d43084 [asan] make sure that linker-initialized globals (non-extern) are not instrumented even in -asan-initialization-order mode. This time with a test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168366 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-20 13:00:01 +00:00
Benjamin Kramer
9e6ee16b18 Plug a memory leak in the GCOV profiling emitter, which never released the edge table memory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168259 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-17 13:49:37 +00:00
Alexey Samsonov
659c052dfb [TSan] fix indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167928 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-14 14:33:59 +00:00
Alexey Samsonov
1faf9be569 [ASan] fixup for r167725: Don't fetch name of StructType if it is literal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167729 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-12 14:47:00 +00:00
Alexey Samsonov
9cc45d2d7e [ASan]: Add minimalistic support for turning off initialization-order checking for globals of specified types. Tests for this behavior will go to ASan test suite in compiler-rt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167725 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-12 14:00:01 +00:00
Dmitry Vyukov
c2e9ca15fb tsan: switch to new memory_order constants (ABI compatible) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167615 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-09 14:12:16 +00:00
Dmitry Vyukov
9f8a90b3ce tsan: instrument all atomics (including fetch_add, exchange, cas, etc) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167612 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-09 12:55:36 +00:00
Kostya Serebryany
7846c1c851 [asan] fix bug 14277 (asan needs to fail with fata error if an __asan interface function is being redefined. Before this fix asan asserts) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167529 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-07 12:42:18 +00:00
Alexey Samsonov
9ce84c1c95 Fix whitespaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167295 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-02 12:20:34 +00:00
Kostya Serebryany
a5f54f1443 [asan] don't instrument globals that we've created ourselves (reduces the binary size a bit) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167230 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-01 13:42:40 +00:00
Chandler Carruth
426c2bf5cd Revert the majority of the next patch in the address space series: 
r165941: Resubmit the changes to llvm core to update the functions to
         support different pointer sizes on a per address space basis.

Despite this commit log, this change primarily changed stuff outside of
VMCore, and those changes do not carry any tests for correctness (or
even plausibility), and we have consistently found questionable or flat
out incorrect cases in these changes. Most of them are probably correct,
but we need to devise a system that makes it more clear when we have
handled the address space concerns correctly, and ideally each pass that
gets updated would receive an accompanying test case that exercises that
pass specificaly w.r.t. alternate address spaces.

However, from this commit, I have retained the new C API entry points.
Those were an orthogonal change that probably should have been split
apart, but they seem entirely good.

In several places the changes were very obvious cleanups with no actual
multiple address space code added; these I have not reverted when
I spotted them.

In a few other places there were merge conflicts due to a cleaner
solution being implemented later, often not using address spaces at all.
In those cases, I've preserved the new code which isn't address space
dependent.

This is part of my ongoing effort to clean out the partial address space
code which carries high risk and low test coverage, and not likely to be
finished before the 3.2 release looms closer. Duncan and I would both
like to see the above issues addressed before we return to these
changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167222 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-01 09:14:31 +00:00
Duncan Sands
7ed4f94c13 Remove a wrapper around getIntPtrType added to GVN by Hal in commit 166624 (the 
wrapper returns a vector of integers when passed a vector of pointers) by having
getIntPtrType itself return a vector of integers in this case.  Outside of this
wrapper, I didn't find anywhere in the codebase that was relying on the old
behaviour for vectors of pointers, so give this a whirl through the buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166939 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-29 17:31:46 +00:00
Micah Villmow
b8bce928f4 Back out r166591, not sure why this made it through since I cancelled the command. Bleh, sorry about this! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166596 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-24 17:25:11 +00:00
Micah Villmow
2f87640b86 Delete a directory that wasn't supposed to be checked in yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166591 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-24 17:20:04 +00:00
Micah Villmow
aa76e9e2cf Add in support for getIntPtrType to get the pointer type based on the address space. 
This checkin also adds in some tests that utilize these paths and updates some of the
clients.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166578 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-24 15:52:52 +00:00
Alexey Samsonov
34674fea97 [ASan] Support comments in ASan/TSan blacklist file as lines starting with # 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166283 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 15:24:46 +00:00
Evgeniy Stepanov
4a2dec05ce Move SplitBlockAndInsertIfThen to BasicBlockUtils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166278 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 10:48:31 +00:00
Kostya Serebryany
bd0052a0f2 [asan] make sure asan erases old unused allocas after it created a new one. This became important after the recent move from ModulePass to FunctionPass because no cleanup is happening after asan pass any more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166267 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 06:20:53 +00:00
Kostya Serebryany
324d96b9e2 [asan] better debug diagnostics in asan compiler module 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166102 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-17 13:40:06 +00:00
Micah Villmow
2c39b15073 Resubmit the changes to llvm core to update the functions to support different pointer sizes on a per address space basis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165941 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-15 16:24:29 +00:00
Kostya Serebryany
ee4edeccab [asan] make AddressSanitizer to be a FunctionPass instead of ModulePass. This will simplify chaining other FunctionPasses with asan. Also some minor cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165936 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-15 14:20:06 +00:00
Micah Villmow
fb384d61c7 Revert 165732 for further review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165747 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-11 21:27:41 +00:00
Micah Villmow
f3840d2c16 Add in the first iteration of support for llvm/clang/lldb to allow variable per address space pointer sizes to be optimized correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165726 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-11 17:21:41 +00:00
Bill Wendling
f5e6d70f8c Have 'addFnAttr' take the attribute enum value. Then have it build the attribute object and add it appropriately. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165595 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-10 03:12:49 +00:00