diff options
| author | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-03-23 09:55:53 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-03-23 09:55:53 +0100 |
| commit | ee3a999fe7dfddb2531b045738ff2c0c40e6eb4c (patch) | |
| tree | 2e79f430a07b923b744e3898689ee65e1e67c75d /gcc/sanopt.c | |
| parent | 631270a5cedfad8267a5e7b94901035212713b61 (diff) | |
| download | gcc-ee3a999fe7dfddb2531b045738ff2c0c40e6eb4c.zip gcc-ee3a999fe7dfddb2531b045738ff2c0c40e6eb4c.tar.gz gcc-ee3a999fe7dfddb2531b045738ff2c0c40e6eb4c.tar.bz2 | |
re PR sanitizer/85029 (-fsanitize=undefined internal compiler error: in maybe_optimize_ubsan_ptr_ifn, at sanopt.c:493)
PR sanitizer/85029
* sanopt.c (maybe_optimize_ubsan_ptr_ifn): If DECL_REGISTER (base),
just don't try to optimize it rather than assert it never happens.
* g++.dg/ubsan/pr85029.C: New test.
From-SVN: r258794
Diffstat (limited to 'gcc/sanopt.c')
| -rw-r--r-- | gcc/sanopt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/sanopt.c b/gcc/sanopt.c index 116bc38..223c06a 100644 --- a/gcc/sanopt.c +++ b/gcc/sanopt.c @@ -488,9 +488,9 @@ maybe_optimize_ubsan_ptr_ifn (sanopt_ctx *ctx, gimple *stmt) &unsignedp, &reversep, &volatilep); if ((offset == NULL_TREE || TREE_CODE (offset) == INTEGER_CST) && DECL_P (base) + && !DECL_REGISTER (base) && pbitpos.is_constant (&bitpos)) { - gcc_assert (!DECL_REGISTER (base)); offset_int expr_offset; if (offset) expr_offset = wi::to_offset (offset) + bitpos / BITS_PER_UNIT; |