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| author | Artem Dergachev <artem.dergachev@gmail.com> | 2018-02-10 00:51:47 +0000 |
|---|---|---|
| committer | Artem Dergachev <artem.dergachev@gmail.com> | 2018-02-10 00:51:47 +0000 |
| commit | 6e050d9bef4498d98610a01e548dce3e8814bb0d (patch) | |
| tree | 66fae4a0f75d412e381bab8c0100c70a8c0dc0ab /lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp | |
| parent | 1774e274acf780c3ca203e40f8968f5fee1682c2 (diff) | |
| download | clang-6e050d9bef4498d98610a01e548dce3e8814bb0d.tar.gz | |
[analyzer] Add support for __builtin_constant_p.
This builtin is evaluated in compile time. But in the analyzer we don't yet
automagically evaluate all calls that can be evaluated in compile time.
Patch by Felix Kostenzer!
Differential Revision: https://reviews.llvm.org/D42745
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@324789 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp')
| -rw-r--r-- | lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp b/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp index 93c9bfa043..0e781d08e2 100644 --- a/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp +++ b/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp @@ -96,7 +96,8 @@ bool BuiltinFunctionChecker::evalCall(const CallExpr *CE, return true; } - case Builtin::BI__builtin_object_size: { + case Builtin::BI__builtin_object_size: + case Builtin::BI__builtin_constant_p: { // This must be resolvable at compile time, so we defer to the constant // evaluator for a value. SVal V = UnknownVal(); |