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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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The original check did break the green buildbot in the sanitizer build.
It took a while to redroduce and understand the issue.
There occured a stackoverflow while parsing the AST. The testcase with
256 case labels was the problem because each case label added another
stackframe. It seemed that the issue occured only in 'RelWithDebInfo' builds
and not in normal sanitizer builds.
To simplify the matchers the recognition for the different kinds of switch
statements has been moved into a seperate function and will not be done with
ASTMatchers. This is an attempt to reduce recursion and stacksize as well.
The new check removed this big testcase. Covering all possible values is still
implemented for bitfields and works there. The same logic on integer types
will lead to the issue.
Running it over LLVM gives the following results:
Differential: https://reviews.llvm.org/D40737
llvm-svn: 328107
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The address sanitizer found a stackoverflow with this patch.
There is no obvious fix. This patch will be reapplied when the problem
is found.
llvm-svn: 318670
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Summary:
This check searches for missing `else` branches in `if-else if`-chains and
missing `default` labels in `switch` statements, that use integers as condition.
It is very similar to -Wswitch, but concentrates on integers only, since enums are
already covered.
The option to warn for missing `else` branches is deactivated by default, since it is
very noise on larger code bases.
Running it on LLVM:
{F5354858} for default configuration
{F5354866} just for llvm/lib/Analysis/ScalarEvolution.cpp, the else-path checker is very noisy!
Reviewers: alexfh, aaron.ballman, hokein
Reviewed By: aaron.ballman
Subscribers: lebedev.ri, Eugene.Zelenko, cfe-commits, mgorny, JDevlieghere, xazax.hun
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D37808
llvm-svn: 318600
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