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Diffstat (limited to 'gcc/tree-ssa-alias.c')
| -rw-r--r-- | gcc/tree-ssa-alias.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index 37ea0f2..35f05d3 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -438,6 +438,20 @@ init_alias_info (void) { unsigned i; bitmap_iterator bi; + basic_block bb; + + /* Make sure that every statement has a valid set of operands. + If a statement needs to be scanned for operands while we + compute aliases, it may get erroneous operands because all + the alias relations are not built at that point. + FIXME: This code will become obsolete when operands are not + lazily updated. */ + FOR_EACH_BB (bb) + { + block_stmt_iterator si; + for (si = bsi_start (bb); !bsi_end_p (si); bsi_next (&si)) + get_stmt_operands (bsi_stmt (si)); + } /* Clear the call-clobbered set. We are going to re-discover call-clobbered variables. */ |