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Diffstat (limited to 'gcc/tree-ssa-dse.c')
| -rw-r--r-- | gcc/tree-ssa-dse.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/tree-ssa-dse.c b/gcc/tree-ssa-dse.c index be440c9b657..80c2622c9dc 100644 --- a/gcc/tree-ssa-dse.c +++ b/gcc/tree-ssa-dse.c @@ -301,8 +301,9 @@ dse_optimize_stmt (struct dse_global_data *dse_gd, virtual uses from stmt and the stmt which stores to that same memory location, then we may have found redundant store. */ if (bitmap_bit_p (dse_gd->stores, get_stmt_uid (use_stmt)) - && operand_equal_p (gimple_assign_lhs (stmt), - gimple_assign_lhs (use_stmt), 0)) + && (operand_equal_p (gimple_assign_lhs (stmt), + gimple_assign_lhs (use_stmt), 0) + || stmt_kills_ref_p (use_stmt, gimple_assign_lhs (stmt)))) { /* If use_stmt is or might be a nop assignment, e.g. for struct { ... } S a, b, *p; ... |