diff options
| -rw-r--r-- | lib/Sema/SemaChecking.cpp | 12 | ||||
| -rw-r--r-- | test/Sema/switch-1.c | 1 |
2 files changed, 11 insertions, 2 deletions
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp index 3926f01ea6..2f8d8576b9 100644 --- a/lib/Sema/SemaChecking.cpp +++ b/lib/Sema/SemaChecking.cpp @@ -5188,8 +5188,16 @@ void Sema::CheckImplicitConversions(Expr *E, SourceLocation CC) { void Sema::CheckForIntOverflow (Expr *E) { if (const BinaryOperator *BExpr = dyn_cast<BinaryOperator>(E->IgnoreParens())) { unsigned Opc = BExpr->getOpcode(); - if (Opc != BO_Add && Opc != BO_Sub && Opc != BO_Mul && Opc != BO_Div) - return; + switch (Opc) { + case BO_Add: + case BO_Sub: + case BO_Mul: + case BO_Div: + case BO_Rem: + break; + default: + return; + } llvm::SmallVector<PartialDiagnosticAt, 4> Diags; E->EvaluateForOverflow(Context, &Diags); } diff --git a/test/Sema/switch-1.c b/test/Sema/switch-1.c index 944048d1b2..ce1e7dc943 100644 --- a/test/Sema/switch-1.c +++ b/test/Sema/switch-1.c @@ -12,6 +12,7 @@ int f(int i) { case (123456 *789012) + 1: // expected-warning {{overflow in expression; result is -1375982336 with type 'int'}} return 3; case (2147483647*4)/4: // expected-warning {{overflow in expression; result is -4 with type 'int'}} + case (2147483647*4)%4: // expected-warning {{overflow in expression; result is -4 with type 'int'}} return 4; case 2147483647: return 0; |