diff options
| -rw-r--r-- | gcc/c-iterate.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/gcc/c-iterate.c b/gcc/c-iterate.c index 38c15a2..99f9a79 100644 --- a/gcc/c-iterate.c +++ b/gcc/c-iterate.c @@ -278,19 +278,22 @@ iterator_loop_prologue (idecl, start_note, end_note) tree idecl; rtx *start_note, *end_note; { + tree expr; + /* Force the save_expr in DECL_INITIAL to be calculated if it hasn't been calculated yet. */ - expand_expr (DECL_INITIAL (idecl), 0, VOIDmode, 0); + expand_expr (DECL_INITIAL (idecl), const0_rtx, VOIDmode, 0); if (DECL_RTL (idecl) == 0) expand_decl (idecl); if (start_note) *start_note = emit_note (0, NOTE_INSN_DELETED); + /* Initialize counter. */ - expand_expr (build (MODIFY_EXPR, TREE_TYPE (idecl), - idecl, integer_zero_node), - 0, VOIDmode, 0); + expr = build (MODIFY_EXPR, TREE_TYPE (idecl), idecl, integer_zero_node); + TREE_SIDE_EFFECTS (expr) = 1; + expand_expr (expr, const0_rtx, VOIDmode, 0); expand_start_loop_continue_elsewhere (1); @@ -329,8 +332,9 @@ iterator_loop_epilogue (idecl, start_note, end_note) *start_note = emit_note (0, NOTE_INSN_DELETED); expand_loop_continue_here (); incr = build_binary_op (PLUS_EXPR, idecl, integer_one_node, 0); - expand_expr (build (MODIFY_EXPR, TREE_TYPE (idecl), idecl, incr), - 0, VOIDmode, 0); + incr = build (MODIFY_EXPR, TREE_TYPE (idecl), idecl, incr); + TREE_SIDE_EFFECTS (incr) = 1; + expand_expr (incr, const0_rtx, VOIDmode, 0); test = build_binary_op (LT_EXPR, idecl, DECL_INITIAL (idecl), 0); expand_exit_loop_if_false (0, test); expand_end_loop (); |