diff options
Diffstat (limited to 'gcc/stmt.c')
| -rw-r--r-- | gcc/stmt.c | 17 |
1 files changed, 11 insertions, 6 deletions
@@ -2521,9 +2521,10 @@ expand_case (tree exp) } else { + rtx fallback_label = label_rtx (case_list->code_label); table_label = gen_label_rtx (); if (! try_casesi (index_type, index_expr, minval, range, - table_label, default_label)) + table_label, default_label, fallback_label)) { bool ok; @@ -2566,11 +2567,15 @@ expand_case (tree exp) = gen_rtx_LABEL_REF (Pmode, label_rtx (n->code_label)); } - /* Fill in the gaps with the default. */ - if (default_label) - for (i = 0; i < ncases; i++) - if (labelvec[i] == 0) - labelvec[i] = gen_rtx_LABEL_REF (Pmode, default_label); + /* Fill in the gaps with the default. We may have gaps at + the beginning if we tried to avoid the minval subtraction, + so substitute some label even if the default label was + deemed unreachable. */ + if (!default_label) + default_label = fallback_label; + for (i = 0; i < ncases; i++) + if (labelvec[i] == 0) + labelvec[i] = gen_rtx_LABEL_REF (Pmode, default_label); /* Output the table. */ emit_label (table_label); |