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| author | Martin Sebor <msebor@redhat.com> | 2020-02-11 16:53:13 -0700 |
|---|---|---|
| committer | Martin Sebor <msebor@redhat.com> | 2020-02-11 16:53:13 -0700 |
| commit | 9a5338e57db1cda13fa788b0e0debbcf99a475d6 (patch) | |
| tree | 22a43a4dda29b013a39d82899f6b1e0ce227d0f7 /gcc/tree-ssa-alias.c | |
| parent | ad21e0072e20b7c8e4d7af5ca78f24cc6ae407d1 (diff) | |
PR tree-optimization/93683 - ICE on calloc with unused return value in ao_ref_init_from_ptr_and_size
gcc/testsuite/ChangeLog:
PR tree-optimization/93683
* gcc.dg/tree-ssa/ssa-dse-39.c: New test.
gcc/ChangeLog:
PR tree-optimization/93683
* tree-ssa-alias.c (stmt_kills_ref_p): Avoid using LHS when not set.
Diffstat (limited to 'gcc/tree-ssa-alias.c')
| -rw-r--r-- | gcc/tree-ssa-alias.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index c7e6679f990..fd781050668 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -3265,6 +3265,8 @@ stmt_kills_ref_p (gimple *stmt, ao_ref *ref) return false; dest = gimple_call_lhs (stmt); + if (!dest) + return false; len = fold_build2 (MULT_EXPR, TREE_TYPE (arg0), arg0, arg1); } else |