diff options
| -rw-r--r-- | gcc/gimple-ssa-warn-access.cc | 8 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/Wstringop-overflow-89.c | 16 |
2 files changed, 22 insertions, 2 deletions
diff --git a/gcc/gimple-ssa-warn-access.cc b/gcc/gimple-ssa-warn-access.cc index 04aa849..59a7053 100644 --- a/gcc/gimple-ssa-warn-access.cc +++ b/gcc/gimple-ssa-warn-access.cc @@ -4291,14 +4291,18 @@ pass_waccess::check_pointer_uses (gimple *stmt, tree ptr, void pass_waccess::check_call (gcall *stmt) { - if (gimple_call_builtin_p (stmt, BUILT_IN_NORMAL)) - check_builtin (stmt); + /* Skip special calls generated by the compiler. */ + if (gimple_call_from_thunk_p (stmt)) + return; /* .ASAN_MARK doesn't access any vars, only modifies shadow memory. */ if (gimple_call_internal_p (stmt) && gimple_call_internal_fn (stmt) == IFN_ASAN_MARK) return; + if (gimple_call_builtin_p (stmt, BUILT_IN_NORMAL)) + check_builtin (stmt); + if (!m_early_checks_p) if (tree callee = gimple_call_fndecl (stmt)) { diff --git a/gcc/testsuite/gcc.dg/Wstringop-overflow-89.c b/gcc/testsuite/gcc.dg/Wstringop-overflow-89.c new file mode 100644 index 0000000..ba25a93 --- /dev/null +++ b/gcc/testsuite/gcc.dg/Wstringop-overflow-89.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fno-inline -Wall" } */ + +extern void process (char); + +void process_array4 (char a[4], int n) +{ + for (int i = 0; i < n; i++) + process (a[i]); +} + +void process_array3 (char a[3], int n) +{ + for (int i = 0; i < n; i++) + process (a[i]); +} |