diff options
| author | Kazu Hirata <kazu@cs.umass.edu> | 2004-02-19 10:53:13 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2004-02-19 10:53:13 +0000 |
| commit | a3b182a7874b3114e3d363caa3c103a03dcb4556 (patch) | |
| tree | 8f5a658fb9fd9f708e787acc6e147df2b3a0b8b8 | |
| parent | ca6b7cecf68ef7ff90916a3ff3deca8e71a14c30 (diff) | |
| download | gcc-a3b182a7874b3114e3d363caa3c103a03dcb4556.zip gcc-a3b182a7874b3114e3d363caa3c103a03dcb4556.tar.gz gcc-a3b182a7874b3114e3d363caa3c103a03dcb4556.tar.bz2 | |
* loop.c (all_sets_invariant_p): Remove.
From-SVN: r78090
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/loop.c | 31 |
2 files changed, 4 insertions, 31 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7bc78d5..300dfac 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2004-02-19 Kazu Hirata <kazu@cs.umass.edu> + + * loop.c (all_sets_invariant_p): Remove. + 2004-02-19 Eric Botcazou <ebotcazou@libertysurf.fr> PR target/12916 @@ -3499,37 +3499,6 @@ consec_sets_invariant_p (const struct loop *loop, rtx reg, int n_sets, /* If loop_invariant_p ever returned 2, we return 2. */ return 1 + (value & 2); } - -#if 0 -/* I don't think this condition is sufficient to allow INSN - to be moved, so we no longer test it. */ - -/* Return 1 if all insns in the basic block of INSN and following INSN - that set REG are invariant according to TABLE. */ - -static int -all_sets_invariant_p (rtx reg, rtx insn, short *table) -{ - rtx p = insn; - int regno = REGNO (reg); - - while (1) - { - enum rtx_code code; - p = NEXT_INSN (p); - code = GET_CODE (p); - if (code == CODE_LABEL || code == JUMP_INSN) - return 1; - if (code == INSN && GET_CODE (PATTERN (p)) == SET - && GET_CODE (SET_DEST (PATTERN (p))) == REG - && REGNO (SET_DEST (PATTERN (p))) == regno) - { - if (! loop_invariant_p (loop, SET_SRC (PATTERN (p)), table)) - return 0; - } - } -} -#endif /* 0 */ /* Look at all uses (not sets) of registers in X. For each, if it is the single use, set USAGE[REGNO] to INSN; if there was a previous use in |