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| author | Martin Sebor <msebor@redhat.com> | 2019-04-04 21:59:49 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2019-04-04 15:59:49 -0600 |
| commit | 9a0cbb60d28042893135cee60ad28a48a7e2235d (patch) | |
| tree | 5ad4a9c490283deb44de2794ef29ca75d5fe31db /gcc/gimple-ssa-warn-restrict.c | |
| parent | c2457887ea0c4796b43625149a8d083266efba86 (diff) | |
| download | gcc-9a0cbb60d28042893135cee60ad28a48a7e2235d.zip gcc-9a0cbb60d28042893135cee60ad28a48a7e2235d.tar.gz gcc-9a0cbb60d28042893135cee60ad28a48a7e2235d.tar.bz2 | |
PR middle-end/89934 - ICE on a call with fewer arguments to strncpy declared without prototype
gcc/ChangeLog:
PR middle-end/89934
* gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Bail
out if the number of arguments is less than expected.
gcc/testsuite/ChangeLog:
PR middle-end/89934
* gcc.dg/Wrestrict-19.c: New test.
* gcc.dg/Wrestrict-5.c: Add comment. Remove unused code.
From-SVN: r270152
Diffstat (limited to 'gcc/gimple-ssa-warn-restrict.c')
| -rw-r--r-- | gcc/gimple-ssa-warn-restrict.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/gimple-ssa-warn-restrict.c b/gcc/gimple-ssa-warn-restrict.c index 4ebe99f..0c571ef 100644 --- a/gcc/gimple-ssa-warn-restrict.c +++ b/gcc/gimple-ssa-warn-restrict.c @@ -730,6 +730,10 @@ builtin_access::builtin_access (gimple *call, builtin_memref &dst, offset_int bounds[2] = { maxobjsize, maxobjsize }; if (dstref->strbounded_p) { + unsigned nargs = gimple_call_num_args (call); + if (nargs <= sizeargno) + return; + tree size = gimple_call_arg (call, sizeargno); tree range[2]; if (get_size_range (size, range, true)) |