diff options
| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-08-07 20:24:08 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-08-07 20:24:08 +0000 |
| commit | 9239aee664338dfa16b622edaa5a9c201e9ffd20 (patch) | |
| tree | 60a5182f2490898a51da85e16138b7f79e245443 /gcc/profile.c | |
| parent | 4c088c24ab96eae88be5177016af7a58f9e416b9 (diff) | |
| download | gcc-9239aee664338dfa16b622edaa5a9c201e9ffd20.tar.gz | |
* calls.c (expand_call): Do not emit INSN_SETJMP note.
(emit_library_call_value_1): Likewise.
(emit_call_1): Emit REG_SETJMP note.
* cse.c (cse_end_of_basic_block): Use REG_SETJMP instead
of INSN_SETJMP
* cselib.c (cselib_process_insn): Likewise.
* flow.c (propagate_block): Likewise.
* loop.c (find_and_verify_loops): Likewise.
* reload.c (find_equiv_regs): Likewise.
* reload1.c (reload): Likewise.
* resource.c (mark_referenced_resources,
mark_set_resources): Likewise.
* sched-deps (sched_analyze_insn, sched_analyze): Likewise.
* final.c (final_scan_insn): Remove NOTE_INSN_SETJMP.
* haifa-sched.c (unlink_other_notes): Likewise.
(reemit_notes): Likewise.
* sched-ebb.c (sched_ebb): Likewise.
* sched-rgc.c (sched_region): Likewise.
* rtl.c (note_insn_name): Likewise.
(reg_note_name): Add REG_SETJMP
* rtl.h (reg_note): Add REG_SETJMP.
(insn_note): Remove NOTE_INSN_SETJMP.
* profile.c (branch_prob): Add fake edges for setjmp.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@44700 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/profile.c')
| -rw-r--r-- | gcc/profile.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/profile.c b/gcc/profile.c index a872ab850c6..983df4330a7 100644 --- a/gcc/profile.c +++ b/gcc/profile.c @@ -544,8 +544,37 @@ branch_prob () int need_exit_edge = 0, need_entry_edge = 0; int have_exit_edge = 0, have_entry_edge = 0; basic_block bb = BASIC_BLOCK (i); + rtx insn; edge e; + /* Add fake edges from entry block to the call insns that may return + twice. The CFG is not quite correct then, as call insn plays more + role of CODE_LABEL, but for our purposes, everything should be OK, + as we never insert code to the beggining of basic block. */ + for (insn = bb->head; insn != NEXT_INSN (bb->end); + insn = NEXT_INSN (insn)) + { + if (GET_CODE (insn) == CALL_INSN + && find_reg_note (insn, REG_SETJMP, NULL)) + { + if (GET_CODE (bb->head) == CODE_LABEL + || insn != NEXT_INSN (bb->head)) + { + e = split_block (bb, PREV_INSN (insn)); + make_edge (NULL, ENTRY_BLOCK_PTR, e->dest, EDGE_FAKE); + break; + } + else + { + /* We should not get abort here, as call to setjmp should not + be the very first instruction of function. */ + if (!i) + abort (); + make_edge (NULL, ENTRY_BLOCK_PTR, bb, EDGE_FAKE); + } + } + } + for (e = bb->succ; e; e = e->succ_next) { if ((e->flags & (EDGE_ABNORMAL | EDGE_ABNORMAL_CALL)) |