Tim Northover
ca396e391e
IR: add a second ordering operand to cmpxhg for failure
...
The syntax for "cmpxchg" should now look something like:
cmpxchg i32* %addr, i32 42, i32 3 acquire monotonic
where the second ordering argument gives the required semantics in the case
that no exchange takes place. It should be no stronger than the first ordering
constraint and cannot be either "release" or "acq_rel" (since no store will
have taken place).
rdar://problem/15996804
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203559 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-11 10:48:52 +00:00
Dmitry Vyukov
b10675ef14
tsan: instrument atomic nand operation
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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
Dmitry Vyukov
6702e53926
[tsan] add fail order to compare_exchange
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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
Dmitry Vyukov
c2e9ca15fb
tsan: switch to new memory_order constants (ABI compatible)
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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)
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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
Dmitry Vyukov
6afc7cbdfe
tsan: update the test for new atomic enums
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165109 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-03 13:19:20 +00:00
Dmitry Vyukov
03fe214515
tsan: update the test for new atomic enums
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165108 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-03 13:13:54 +00:00
Kostya Serebryany
e507922779
[tsan] Atomic support for ThreadSanitizer, patch by Dmitry Vyukov
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155698 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-27 07:31:53 +00:00
