diff options
Diffstat (limited to 'gcc/cp/typeck.cc')
| -rw-r--r-- | gcc/cp/typeck.cc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/cp/typeck.cc b/gcc/cp/typeck.cc index 15548e5..6b38c8c 100644 --- a/gcc/cp/typeck.cc +++ b/gcc/cp/typeck.cc @@ -9136,10 +9136,14 @@ cp_build_modify_expr (location_t loc, tree lhs, enum tree_code modifycode, /* An expression of the form E1 op= E2. [expr.ass] says: "Such expressions are deprecated if E1 has volatile-qualified - type." We warn here rather than in cp_genericize_r because + type and op is not one of the bitwise operators |, &, ^." + We warn here rather than in cp_genericize_r because for compound assignments we are supposed to warn even if the assignment is a discarded-value expression. */ - if (TREE_THIS_VOLATILE (lhs) || CP_TYPE_VOLATILE_P (lhstype)) + if (modifycode != BIT_AND_EXPR + && modifycode != BIT_IOR_EXPR + && modifycode != BIT_XOR_EXPR + && (TREE_THIS_VOLATILE (lhs) || CP_TYPE_VOLATILE_P (lhstype))) warning_at (loc, OPT_Wvolatile, "compound assignment with %<volatile%>-qualified left " "operand is deprecated"); |