diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/c4x/c4x.c | 33 |
2 files changed, 21 insertions, 17 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 810dbda..41a2805 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Wed Sep 22 19:56:25 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz> + + * config/c4x/c4x.c (c4x_process_after_reload): Rework machdep insn + splitting to not use output template. + Wed Sep 22 19:50:12 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz> * config/c4x/c4x.h (EXPAND_BUILTIN_VA_START): Call c4x_va_start. diff --git a/gcc/config/c4x/c4x.c b/gcc/config/c4x/c4x.c index c3294ef..28ec73b 100644 --- a/gcc/config/c4x/c4x.c +++ b/gcc/config/c4x/c4x.c @@ -2200,26 +2200,25 @@ c4x_process_after_reload (first) if (insn_code_number == CODE_FOR_rptb_end) c4x_rptb_insert(insn); - /* We split all insns here if they have a # for the output - template. */ - - if (1) + /* When the optimization level less than 2 we need to split + the insn here. Otherwise the calls to force_const_mem + will not work. */ + if (optimize < 2) { - const char *template; + rtx old = insn; + + /* Don't split the insn if it has been deleted. */ + if (! INSN_DELETED_P (old)) + insn = try_split (PATTERN(old), old, 1); - template = get_insn_template (insn_code_number, insn); - if (template && template[0] == '#' && template[1] == '\0') + /* When not optimizing, the old insn will be still left around + with only the 'deleted' bit set. Transform it into a note + to avoid confusion of subsequent processing. */ + if (INSN_DELETED_P (old)) { - rtx new = try_split (PATTERN(insn), insn, 0); - - /* If we didn't split the insn, go away. */ - if (new == insn && PATTERN (new) == PATTERN(insn)) - fatal_insn ("Couldn't split pattern", insn); - - PUT_CODE (insn, NOTE); - NOTE_SOURCE_FILE (insn) = 0; - NOTE_LINE_NUMBER (insn) = NOTE_INSN_DELETED; - insn = new; + PUT_CODE (old, NOTE); + NOTE_LINE_NUMBER (old) = NOTE_INSN_DELETED; + NOTE_SOURCE_FILE (old) = 0; } } } |