diff options
| author | Eric Fisher <joefoxreal@gmail.com> | 2010-01-05 12:30:30 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-01-05 12:30:30 +0000 |
| commit | bc3c12a29c67753c473b465767b2ba6b2f7e72a6 (patch) | |
| tree | 589de603d5bb2de5f913adb4dcd7e403d6b4dc07 /gcc/tree-cfg.c | |
| parent | 4ebf9c376342d1cb69f1aefddc2db5d2fe950248 (diff) | |
| download | gcc-bc3c12a29c67753c473b465767b2ba6b2f7e72a6.zip gcc-bc3c12a29c67753c473b465767b2ba6b2f7e72a6.tar.gz gcc-bc3c12a29c67753c473b465767b2ba6b2f7e72a6.tar.bz2 | |
invoke.texi: Remove the documentation about option -Wunreachable-code.
2010-01-05 Eric Fisher <joefoxreal@gmail.com>
* doc/invoke.texi: Remove the documentation about option
-Wunreachable-code.
* common.opt (Wunreachable-code): Preserved for backward
compatibility.
* tree-cfg.c: Remove the implementation of -Wunreachable-code.
* opts.c (common_handle_option): Add OPT_Wunreachable_code to
the backward compatibility flag section.
* gcc.dg/pr12603.c: Remove -Wunreachable-code from dg-options.
* gcc.dg/Wunreachable-1.c: Remove the testcase of
-Wunreachable-code.
* gcc.dg/Wunreachable-2.c: Likewise.
* gcc.dg/Wunreachable-3.c: Likewise.
* gcc.dg/Wunreachable-4.c: Likewise.
* gcc.dg/Wunreachable-5.c: Likewise.
* gcc.dg/Wunreachable-6.c: Likewise.
* gcc.dg/Wunreachable-7.c: Likewise.
* gcc.dg/Wunreachable-8.c: Likewise.
* gcc.dg/20041231-1.c: Likewise.
From-SVN: r155645
Diffstat (limited to 'gcc/tree-cfg.c')
| -rw-r--r-- | gcc/tree-cfg.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c index 3a08689..2eb3cd2 100644 --- a/gcc/tree-cfg.c +++ b/gcc/tree-cfg.c @@ -1760,7 +1760,6 @@ static void remove_bb (basic_block bb) { gimple_stmt_iterator i; - source_location loc = UNKNOWN_LOCATION; if (dump_file) { @@ -1830,24 +1829,9 @@ remove_bb (basic_block bb) i = gsi_last_bb (bb); else gsi_prev (&i); - - /* Don't warn for removed gotos. Gotos are often removed due to - jump threading, thus resulting in bogus warnings. Not great, - since this way we lose warnings for gotos in the original - program that are indeed unreachable. */ - if (gimple_code (stmt) != GIMPLE_GOTO - && gimple_has_location (stmt)) - loc = gimple_location (stmt); } } - /* If requested, give a warning that the first statement in the - block is unreachable. We walk statements backwards in the - loop above, so the last statement we process is the first statement - in the block. */ - if (loc > BUILTINS_LOCATION && LOCATION_LINE (loc) > 0) - warning_at (loc, OPT_Wunreachable_code, "will never be executed"); - remove_phi_nodes_and_edges_for_unreachable_block (bb); bb->il.gimple = NULL; } |