diff options
| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-02-04 16:03:14 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-02-04 16:03:14 +0000 |
| commit | 869fe49e07b87b5ebce6fd948868590d81924f60 (patch) | |
| tree | e8df6f9cdd391074172099255b71b5000ca7ade6 /gcc/cfgrtl.c | |
| parent | 1ff4e7e1b21a19deece7f5a48e94f207df647363 (diff) | |
| download | gcc-869fe49e07b87b5ebce6fd948868590d81924f60.tar.gz | |
* cfgrtl.c (try_redirect_by_replacing_jump): Remove associated
CODE_LABEL and jump table when replacing a table jump with a
simple jump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49478 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cfgrtl.c')
| -rw-r--r-- | gcc/cfgrtl.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c index f3187989add..9e8269b8479 100644 --- a/gcc/cfgrtl.c +++ b/gcc/cfgrtl.c @@ -714,7 +714,7 @@ try_redirect_by_replacing_jump (e, target) else { rtx target_label = block_label (target); - rtx barrier; + rtx barrier, tmp; emit_jump_insn_after (gen_jump (target_label), insn); JUMP_LABEL (src->end) = target_label; @@ -723,8 +723,21 @@ try_redirect_by_replacing_jump (e, target) fprintf (rtl_dump_file, "Replacing insn %i by jump %i\n", INSN_UID (insn), INSN_UID (src->end)); + delete_insn_chain (kill_from, insn); + /* Recognize a tablejump that we are converting to a + simple jump and remove its associated CODE_LABEL + and ADDR_VEC or ADDR_DIFF_VEC. */ + if ((tmp = JUMP_LABEL (insn)) != NULL_RTX + && (tmp = NEXT_INSN (tmp)) != NULL_RTX + && GET_CODE (tmp) == JUMP_INSN + && (GET_CODE (PATTERN (tmp)) == ADDR_VEC + || GET_CODE (PATTERN (tmp)) == ADDR_DIFF_VEC)) + { + delete_insn_chain (JUMP_LABEL (insn), tmp); + } + barrier = next_nonnote_insn (src->end); if (!barrier || GET_CODE (barrier) != BARRIER) emit_barrier_after (src->end); |