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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 | 784545fba0e1fcbb5e12cde76d13d91fd0972323 (patch) | |
| tree | b38cec27e9e76205003cd6e11e02982fce4cf53d /CMakeLists.txt | |
| parent | 55a5cb1a4ddf86adfbc1fa8eb157dd0efb4972df (diff) | |
[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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233310 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index bef66ec477..be78ac26f0 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -252,6 +252,9 @@ else() option(LLVM_ENABLE_ASSERTIONS "Enable assertions" ON) endif() +set(LLVM_ABI_BREAKING_CHECKS "WITH_ASSERTS" CACHE STRING + "Enable abi-breaking checks. Can be WITH_ASSERTS, FORCE_ON or FORCE_OFF.") + option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN "Set to ON to force using an old, unsupported host toolchain." OFF) |