diff options
Diffstat (limited to 'lib/Analysis/UninitializedValues.cpp')
-rw-r--r-- | lib/Analysis/UninitializedValues.cpp | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/lib/Analysis/UninitializedValues.cpp b/lib/Analysis/UninitializedValues.cpp index a64c1db530..b84b4309d9 100644 --- a/lib/Analysis/UninitializedValues.cpp +++ b/lib/Analysis/UninitializedValues.cpp @@ -464,14 +464,19 @@ void TransferFunctions::VisitDeclStmt(DeclStmt *ds) { if (init == lastLoad) { DeclRefExpr *DR = cast<DeclRefExpr>(lastLoad->getSubExpr()->IgnoreParens()); - vals[vd] = (DR->getDecl() == vd) ? Uninitialized : Initialized; - lastLoad = 0; - if (lastDR == DR) + if (DR->getDecl() == vd) { + // int x = x; + // Propagate uninitialized value, but don't immediately report + // a problem. + vals[vd] = Uninitialized; + lastLoad = 0; lastDR = 0; + return; + } } - else { - vals[vd] = Initialized; - } + + // All other cases: treat the new variable as initialized. + vals[vd] = Initialized; } } } |