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| author | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-03-26 19:25:01 +0000 |
|---|---|---|
| committer | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-03-26 19:25:01 +0000 |
| commit | 8ce6499bdd80529ca602405ad406804c090d76ce (patch) | |
| tree | eeb94943df6aaacd51d0569df39c5ccab6a472fa /llvm/lib/Support/APInt.cpp | |
| parent | 54dd7df1c086f8484263d3b03f1885d7ba7a07ab (diff) | |
| download | llvm-8ce6499bdd80529ca602405ad406804c090d76ce.zip llvm-8ce6499bdd80529ca602405ad406804c090d76ce.tar.gz llvm-8ce6499bdd80529ca602405ad406804c090d76ce.tar.bz2 | |
[ADT][CMake][AutoConf] Fail-fast iterators for DenseMap
Summary:
This patch is an attempt at making `DenseMapIterator`s "fail-fast".
Fail-fast iterators that have been invalidated due to insertion into
the host `DenseMap` deterministically trip an assert (in debug mode)
on access, instead of non-deterministically hitting memory corruption
issues.
Enabling fail-fast iterators breaks the LLVM C++ ABI, so they are
predicated on `LLVM_ENABLE_ABI_BREAKING_CHECKS`.
`LLVM_ENABLE_ABI_BREAKING_CHECKS` by default flips with
`LLVM_ENABLE_ASSERTS`, but can be clamped to ON or OFF using the CMake /
autoconf build system.
Reviewers: chandlerc, dexonsmith, rnk, zturner
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8351
llvm-svn: 233310
Diffstat (limited to 'llvm/lib/Support/APInt.cpp')
0 files changed, 0 insertions, 0 deletions