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589 Commits

Author SHA1 Message Date
Evgeniy Stepanov
1e3b656be5 [msan] Instrument bswap intrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169383 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-05 14:39:55 +00:00
Evgeniy Stepanov
1b3fcf94a4 [msan] Initialize callbacks in runOnFunction as opposed to doInitialization. 
This mirrors the change in ASan & TSan done in r168864.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169378 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-05 13:14:33 +00:00
Evgeniy Stepanov
61cac0619a [msan] Change linkage type of __msan_track_origins. 
LinkOnceODRLinkage globals may be removed in GlobalOpt if not used in the
current module.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169377 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-05 12:49:41 +00:00
Chandler Carruth
a1514e24cc Sort includes for all of the .h files under the 'lib' tree. These were 
missed in the first pass because the script didn't yet handle include
guards.

Note that the script is now able to handle all of these headers without
manual edits. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169224 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-04 07:12:27 +00:00
Kostya Serebryany
6c55412ea4 [asan] add experimental -asan-realign-stack option (true by default, which does not change the current behavior) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169216 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-04 06:14:01 +00:00
Alexey Samsonov
f985f44b13 ASan: add initial support for handling llvm.lifetime intrinsics in ASan - emit calls into runtime library that poison memory for local variables when their lifetime is over and unpoison memory when their lifetime begins. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169200 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-04 01:34:23 +00:00
Alexey Samsonov
b0dcf61252 ASan: add blacklist file to ASan pass options. Clang patch for this will follow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169143 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-03 19:09:26 +00:00
Chandler Carruth
d04a8d4b33 Use the new script to sort the includes of every file under lib. 
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-03 16:50:05 +00:00
Nuno Lopes
53916aa78f fix stats for added checks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169119 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-03 10:15:03 +00:00
Kostya Serebryany
a17babb021 [asan] simplify the code around doesNotReturn call. It now magically works. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168995 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-30 11:08:59 +00:00
Chandler Carruth
84bcf93e0f Move the InstVisitor utility into VMCore where it belongs. It heavily 
depends on the IR infrastructure, there is no sense in it being off in
Support land.

This is in preparation to start working to expand InstVisitor into more
special-purpose visitors that are still generic and can be re-used
across different passes. The expansion will go into the Analylis tree
though as nothing in VMCore needs it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168972 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-30 03:08:41 +00:00
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
Bill Wendling
2e879bcd52 Use the enum value of the attributes when adding them to the attributes builder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165494 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-09 09:11:20 +00:00
Bill Wendling
6765834754 Create enums for the different attributes. 
We use the enums to query whether an Attributes object has that attribute. The
opaque layer is responsible for knowing where that specific attribute is stored.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165488 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-09 07:45:08 +00:00
Bill Wendling
8831c0605b Convert to using the Attributes::Builder interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165465 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-09 00:01:21 +00:00
Micah Villmow
3574eca1b0 Move TargetData to DataLayout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165402 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-08 16:38:25 +00:00
Kostya Serebryany
41d876cea3 [tsan] add 3 internal flags for fine-grain control of what is instrumented and what is not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165204 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-04 05:28:50 +00:00
Dmitry Vyukov
9a8c112dae tsan: prepare for migration to new memory_order enum values (ABI compatible) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165107 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-03 13:00:57 +00:00
Sylvestre Ledru
94c22716d6 Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 10:14:43 +00:00
Sylvestre Ledru
7e2c793a2b Fix a typo 'iff' => 'if' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164767 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 09:59:43 +00:00
Bill Wendling
2c18906118 Remove the `hasFnAttr' method from Function. 
The hasFnAttr method has been replaced by querying the Attributes explicitly. No
intended functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164725 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-26 21:48:26 +00:00
Bill Wendling
78fff8ec48 s/__llvm_gcov_flush/__gcov_flush/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164040 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-17 17:57:05 +00:00
Axel Naumann
3780ad8b99 Fix a few vars that can end up being used without initialization. 
The cases where no initialization happens should still be checked for logic flaws.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164032 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-17 14:20:57 +00:00
Bill Wendling
ec3fc2eac0 Remove comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163945 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-14 22:35:49 +00:00
Bill Wendling
032dbee2a9 Use Nick's suggestion of storing a large NULL into the GV instead of memset, which requires TargetData. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163799 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-13 14:32:30 +00:00
Bill Wendling
253353c9cf Introduce the __llvm_gcov_flush function. 
This function writes out the current values of the counters and then resets
them. This can be used similarly to the __gcov_flush function to sync the
counters when need be. For instance, in a situation where the application
doesn't exit.
<rdar://problem/12185886>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163757 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-13 00:09:55 +00:00
Kostya Serebryany
7dadac65d3 [asan] fix lint 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163205 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-05 09:00:18 +00:00
Kostya Serebryany
59a4a47a7b [asan] extend the blacklist functionality to handle global-init. Patch by Reid Watson 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163199 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-05 07:29:56 +00:00
Logan Chien
43bf70986b Rename ANDROIDEABI to Android. 
Most of the code guarded with ANDROIDEABI are not
ARM-specific, and having no relation with arm-eabi.
Thus, it will be more natural to call this
environment "Android" instead of "ANDROIDEABI".

Note: We are not using ANDROID because several projects
are using "-DANDROID" as the conditional compilation
flag.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163087 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-02 09:29:46 +00:00
Alexey Samsonov
1dfe9b5264 Whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162907 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-30 13:47:13 +00:00
Bill Wendling
73996f4407 Pass by pointer and not std::string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162888 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-30 01:32:31 +00:00
Bill Wendling
6e5190c193 Revert r162855 in favor of changing clang to emit the absolute coverage file path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162883 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-30 00:34:21 +00:00
Bill Wendling
0e76db9ad4 Use the full path to output the .gcda file. 
This lets the user run the program from a different directory and still have the
.gcda files show up in the correct place.
<rdar://problem/12179524>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162855 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-29 20:30:44 +00:00
Bill Wendling
21b742ffce Use ArrayRef instead of SmallVector when passing vector into function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162851 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-29 18:45:41 +00:00
Benjamin Kramer
8e0d1c03ca Make MemoryBuiltins aware of TargetLibraryInfo. 
This disables malloc-specific optimization when -fno-builtin (or -ffreestanding)
is specified. This has been a problem for a long time but became more severe
with the recent memory builtin improvements.

Since the memory builtin functions are used everywhere, this required passing
TLI in many places. This means that functions that now have an optional TLI
argument, like RecursivelyDeleteTriviallyDeadFunctions, won't remove dead
mallocs anymore if the TLI argument is missing. I've updated most passes to do
the right thing.

Fixes PR13694 and probably others.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162841 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-29 15:32:21 +00:00
Kostya Serebryany
b5b86d263a [asan/tsan] rename FunctionBlackList* to BlackList* as this class is not limited to functions any more 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162566 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-24 16:44:47 +00:00
Kostya Serebryany
2c5380666a [asan/tsan] extend the functionality of FunctionBlackList to globals and modules. Patch by Reid Watson. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162565 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-24 16:40:11 +00:00
Richard Smith
75dd7f0c4a MaximumSpanningTree::EdgeWeightCompare: Make this comparator actually be a 
strict weak ordering, and don't pass possibly-null pointers to dyn_cast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162314 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-21 21:03:40 +00:00
Kostya Serebryany
9b9f87a87a [asan] add code to detect global initialization fiasco in C/C++. The sub-pass is off by default for now. Patch by Reid Watson. Note: this patch changes the interface between LLVM and compiler-rt parts of asan. The corresponding patch to compiler-rt will follow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162268 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-21 08:24:25 +00:00
Kostya Serebryany
6e2d506dc9 [asan] implement --asan-always-slow-path, which is a part of the improvement to handle unaligned partially OOB accesses. See http://code.google.com/p/address-sanitizer/issues/detail?id=100 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161937 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-15 08:58:58 +00:00
Kostya Serebryany
ebd6454929 [asan] insert crash basic blocks inline as opposed to inserting them at the end of the function. This doesn't seem to fix or break anything, but is considered to be more friendly to downstream passes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161870 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 14:04:51 +00:00
Kostya Serebryany
11c2a47af8 [asan] remove the code for --asan-merge-callbacks as it appears to be a bad idea. (partly related to Bug 13225) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161757 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 14:08:46 +00:00
Nuno Lopes
6e699bf38d revert r160742: it's breaking CMake build 
original commit msg:
MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160751 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-25 18:49:28 +00:00
Nuno Lopes
e3094283e3 MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160742 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-25 17:29:22 +00:00
Chandler Carruth
9b4df49d39 Move the initialization of the bounds checking pass. The pass itself 
moved earlier. This fixes some layering issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160611 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-22 05:19:32 +00:00
Nuno Lopes
78435f6bb7 move the bounds checking pass to the instrumentation folder, where it belongs. I dunno why in the world I dropped it in the Scalar folder in the first place. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160587 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-20 22:39:33 +00:00
Kostya Serebryany
f7b08226eb [asan] make sure that the crash callbacks do not get merged (Chandler's idea: insert an empty InlineAsm). Change the order in which the new BBs are inserted: the slow path BB is insert between old BBs, the crash BB is inserted at the end. Don't create an empty BB (introduced by recent commits). Update the test. The experimental code that does manual crash callback merge will most likely be deleted later. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160544 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-20 09:54:50 +00:00
Kostya Serebryany
4f0c69623c [asan] more code to merge crash callbacks. Doesn't fully work yet, but allows to hold performance experiments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160361 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-17 11:04:12 +00:00
Kostya Serebryany
2735cf4aa5 [asan] a bit more refactoring, addressed some of the style comments from chandlerc, partially implemented crash callback merging (under flag) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160290 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-16 17:12:07 +00:00
Kostya Serebryany
c0ed3e548c [asan] refactor instrumentation to allow merging the crash callbacks (not fully implemented yet, no functionality change except the BB order) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160284 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-16 16:15:40 +00:00
Kostya Serebryany
9db5b5ffa9 [asan] initialize asan error callbacks in runOnModule instead of doing that on-demand 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160269 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-16 14:09:42 +00:00