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| author | Ted Kremenek <kremenek@apple.com> | 2008-03-22 20:11:00 +0000 |
|---|---|---|
| committer | Ted Kremenek <kremenek@apple.com> | 2008-03-22 20:11:00 +0000 |
| commit | 5fb5c6afbb331b87c638fad42f5b37ed697e5580 (patch) | |
| tree | 5913c8d778461b7e397c3dc41ba0f4763f30f16f /lib/Analysis/UninitializedValues.cpp | |
| parent | c68ab77068d1aef6c31f18e941b79201be0f71f3 (diff) | |
Changed merge operation for uninitialized values analysis to "intersect" (previous union).
The effect is that if a variable is uninitialized along a branch (but initialized along another), at merge points it is considered uninitialized. Previously we had the opposite behavior. The new behavior is more conservative, and more in line with gcc's behavior.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48689 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/UninitializedValues.cpp')
| -rw-r--r-- | lib/Analysis/UninitializedValues.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Analysis/UninitializedValues.cpp b/lib/Analysis/UninitializedValues.cpp index 25a5ecb483..3edf04ddb6 100644 --- a/lib/Analysis/UninitializedValues.cpp +++ b/lib/Analysis/UninitializedValues.cpp @@ -223,7 +223,7 @@ bool TransferFuncs::BlockStmt_VisitExpr(Expr* E) { //===----------------------------------------------------------------------===// namespace { - typedef ExprDeclBitVector_Types::Union Merge; + typedef ExprDeclBitVector_Types::Intersect Merge; typedef DataflowSolver<UninitializedValues,TransferFuncs,Merge> Solver; } |