diff options
Diffstat (limited to 'gcc/lambda-code.c')
| -rw-r--r-- | gcc/lambda-code.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/lambda-code.c b/gcc/lambda-code.c index 35a5a43..a81af8f 100644 --- a/gcc/lambda-code.c +++ b/gcc/lambda-code.c @@ -2443,7 +2443,9 @@ perfect_nestify (struct loops *loops, incremented when we do. */ for (bsi = bsi_start (bbs[i]); !bsi_end_p (bsi);) { - tree stmt = bsi_stmt (bsi); + ssa_op_iter i; + tree n, stmt = bsi_stmt (bsi); + if (stmt == exit_condition || not_interesting_stmt (stmt) || stmt_is_bumper_for_loop (loop, stmt)) @@ -2451,11 +2453,19 @@ perfect_nestify (struct loops *loops, bsi_next (&bsi); continue; } + replace_uses_of_x_with_y (stmt, oldivvar, ivvar); bsi_move_before (&bsi, &tobsi); + + /* If the statement has any virtual operands, they may + need to be rewired because the original loop may + still reference them. */ + FOR_EACH_SSA_TREE_OPERAND (n, stmt, i, SSA_OP_ALL_VIRTUALS) + mark_sym_for_renaming (SSA_NAME_VAR (n)); } } } + free (bbs); return perfect_nest_p (loop); } |