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| author | Martin Sebor <msebor@redhat.com> | 2018-06-12 18:05:13 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2018-06-12 12:05:13 -0600 |
| commit | e3329a782fc0e51b9a4ddfc6938a484ec4b03084 (patch) | |
| tree | 54f2c40c75f1eaadb4e09b9210721c95bda1b3a4 /gcc/tree-ssa-strlen.c | |
| parent | 47feeb36526b106053ad8d4fc7a64c23ce16f5de (diff) | |
| download | gcc-e3329a782fc0e51b9a4ddfc6938a484ec4b03084.zip gcc-e3329a782fc0e51b9a4ddfc6938a484ec4b03084.tar.gz gcc-e3329a782fc0e51b9a4ddfc6938a484ec4b03084.tar.bz2 | |
PR tree-optimization/85259 - Missing -Wstringop-overflow= since r256683
gcc/ChangeLog:
PR tree-optimization/85259
* builtins.c (compute_objsize): Handle constant offsets.
* gimple-ssa-warn-restrict.c (maybe_diag_offset_bounds): Return
true iff a warning has been issued.
* gimple.h (gimple_nonartificial_location): New function.
* tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Call
gimple_nonartificial_location and handle -Wno-system-headers.
(handle_builtin_stxncpy): Same.
gcc/testsuite/ChangeLog:
PR tree-optimization/85259
* gcc.dg/Wstringop-overflow-5.c: New test.
* gcc.dg/Wstringop-overflow-6.c: New test.
From-SVN: r261518
Diffstat (limited to 'gcc/tree-ssa-strlen.c')
| -rw-r--r-- | gcc/tree-ssa-strlen.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/tree-ssa-strlen.c b/gcc/tree-ssa-strlen.c index cc1f5f4..8794cc2 100644 --- a/gcc/tree-ssa-strlen.c +++ b/gcc/tree-ssa-strlen.c @@ -1886,7 +1886,9 @@ maybe_diag_stxncpy_trunc (gimple_stmt_iterator gsi, tree src, tree cnt) } } - location_t callloc = gimple_location (stmt); + location_t callloc = gimple_nonartificial_location (stmt); + callloc = expansion_point_location_if_in_system_header (callloc); + tree func = gimple_call_fndecl (stmt); if (lenrange[0] != 0 || !wi::neg_p (lenrange[1])) @@ -2069,7 +2071,8 @@ handle_builtin_stxncpy (built_in_function, gimple_stmt_iterator *gsi) to strlen(S)). */ strinfo *silen = get_strinfo (pss->first); - location_t callloc = gimple_location (stmt); + location_t callloc = gimple_nonartificial_location (stmt); + callloc = expansion_point_location_if_in_system_header (callloc); tree func = gimple_call_fndecl (stmt); |