Kostya Serebryany
2076af0184
[tsan] compile-time instrumentation: do not instrument a read if
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a write to the same temp follows in the same BB.
Also add stats printing.
On Spec CPU2006 this optimization saves roughly 4% of instrumented reads
(which is 3% of all instrumented accesses):
Writes : 161216
Reads : 446458
Reads-before-write: 18295
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154418 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10 18:18:56 +00:00
Kostya Serebryany
52eb699220
[tsan] treat vtable pointer updates in a special way (requires tbaa); fix a bug (forgot to return true after instrumenting); make sure the tsan tests are run
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153448 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26 17:35:03 +00:00
Kostya Serebryany
1778513fa5
[asan] move x86-specific test to a separate X86 directory with a custom lit.local.cfg file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152567 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-12 18:49:11 +00:00
Eli Bendersky
0f0c411079
Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.
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Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16 06:28:33 +00:00
Kostya Serebryany
747c02c768
[asan] fix asan-vs-gvn.ll test (it did not actually check much before this change)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150441 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14 00:02:35 +00:00
Kostya Serebryany
60ebb1947f
ThreadSanitizer, a race detector. First LLVM commit.
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Clang patch (flags) will follow shortly.
The run-time library will also follow, but not immediately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150423 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-13 22:50:51 +00:00
Kostya Serebryany
95e3cf44a9
[asan] unpoison the stack before every noreturn call. Fixes asan issue 37. llvm part
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150102 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08 21:36:17 +00:00
Kostya Serebryany
0ca032b03d
The patch resolves the conflict between AddressSanitizer and load widening (GVN).
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The problem initially reported by Mozilla folks (http://code.google.com/p/address-sanitizer/issues/detail?id=20 ),
but it also prevents us from enabling LLVM bootstrap with AddressSanitizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149925 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06 22:48:56 +00:00
Kostya Serebryany
0307b9a885
[asan] enable asan only for the functions that have Attribute::AddressSafety
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148846 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24 19:34:43 +00:00
Kostya Serebryany
091523c648
[asan] one more test for asan instrumentation: (*a)++ should be instrumented only once.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147509 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-04 01:02:14 +00:00
Kostya Serebryany
478a4d997a
[asan] add a test for instrumenting globals
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146718 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-16 01:28:19 +00:00
Kostya Serebryany
d2703dec27
[asan] do not instrument threadlocal globals, this is buggy
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145092 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-23 02:10:54 +00:00
Kostya Serebryany
5a3a9c9371
[asan] workaround for reg alloc bug 11395: don't instrument functions with large chunks of inline assembler
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144962 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-18 01:41:06 +00:00
Kostya Serebryany
7cf2a04361
fall back to explicit list of allowed linkages when instrumenting globals in asan; add a test check that asan does not touch linkonce_odr
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144933 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-17 23:14:59 +00:00
Kostya Serebryany
800e03f598
AddressSanitizer, first commit (compiler module only)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144758 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-16 01:35:23 +00:00
