diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2018-04-17 23:38:45 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-04-17 23:38:45 +0200 |
| commit | cbe679a486d11b1d959042732a9ddc204afbb661 (patch) | |
| tree | 3b848e97175cf19e67adf7c6ceb38fd5ca89f496 /gcc/dse.c | |
| parent | 3f586095d5c004b73d33dcb944705a4b0b07710a (diff) | |
re PR rtl-optimization/85431 (UBSAN: ../../gcc/dse.c:303:15: runtime error: shift exponent 64 is too large for 64-bit type 'long unsigned int')
PR rtl-optimization/85431
* dse.c (record_store): Ignore zero width stores.
From-SVN: r259448
Diffstat (limited to 'gcc/dse.c')
| -rw-r--r-- | gcc/dse.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/dse.c b/gcc/dse.c index 1ef8f642719..26c6007b9ed 100644 --- a/gcc/dse.c +++ b/gcc/dse.c @@ -1417,6 +1417,9 @@ record_store (rtx body, bb_info_t bb_info) return 0; } + if (known_eq (width, 0)) + return 0; + if (group_id >= 0) { /* In the restrictive case where the base is a constant or the |