On 11/29/2021 8:03 AM, Richard Biener via Gcc-patches wrote:
This cleans up unreachable code diagnosed by -Wunreachable-code-ctrl.
It largely follows the previous series but discovers a few extra
cases, namely dead code after break or continue or loops without
exits.
Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
Richard.
2021-11-29 Richard Biener <rguent...@suse.de>
gcc/c/
* gimple-parser.c (c_parser_gimple_postfix_expression):
avoid unreachable code after break.
gcc/
* cfgrtl.c (skip_insns_after_block): Refactor code to
be more easily readable.
* expr.c (op_by_pieces_d::run): Remove unreachable
assert.
* sched-deps.c (sched_analyze): Remove unreachable
gcc_unreachable.
* sel-sched-ir.c (in_same_ebb_p): Likewise.
* tree-ssa-alias.c (nonoverlapping_refs_since_match_p):
Remove unreachable code.
* tree-vect-slp.c (vectorize_slp_instance_root_stmt):
Refactor to avoid unreachable loop iteration.
* tree.c (walk_tree_1): Remove unreachable break.
* vec-perm-indices.c (vec_perm_indices::series_p): Remove
unreachable return.
gcc/cp/
* parser.c (cp_parser_postfix_expression): Remove
unreachable code.
* pt.c (tsubst_expr): Remove unreachable breaks.
gcc/fortran/
* frontend-passes.c (gfc_expr_walker): Remove unreachable
break.
* scanner.c (skip_fixed_comments): Remove unreachable
gcc_unreachable.
* trans-expr.c (gfc_expr_is_variable): Refactor to make
control flow more obvious.
OK
jeff
