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authorRoger Sayle <roger@eyesopen.com>2003-01-25 17:47:26 +0000
committerRoger Sayle <sayle@gcc.gnu.org>2003-01-25 17:47:26 +0000
commit2adc9b0fc586bbe4f97f6571b75ce570d6fb7bcb (patch)
treeca6423303b1850aca0173bd4cd22a7d940b9b92e /gcc/builtins.c
parentad487c38165975bc7980d362b3a664808deae35c (diff)
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builtins.c (purge_builtin_constant_p): Scan insn stream sequentially rather than by basic block.
* builtins.c (purge_builtin_constant_p): Scan insn stream sequentially rather than by basic block. * function.c (purge_addressof): Simplify test with INSN_P. From-SVN: r61789
Diffstat (limited to 'gcc/builtins.c')
-rw-r--r--gcc/builtins.c32
1 files changed, 13 insertions, 19 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 95f9494..d7d8054 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -4720,26 +4720,20 @@ default_expand_builtin (exp, target, subtarget, mode, ignore)
void
purge_builtin_constant_p ()
{
- rtx insn, done, set;
- rtx arg, new, note;
- basic_block bb;
+ rtx insn, set, arg, new, note;
- FOR_EACH_BB (bb)
- {
- done = NEXT_INSN (bb->end);
- for (insn = bb->head; insn != done; insn = NEXT_INSN (insn))
- if (INSN_P (insn)
- && (set = single_set (insn)) != NULL_RTX
- && GET_CODE (SET_SRC (set)) == CONSTANT_P_RTX)
- {
- arg = XEXP (SET_SRC (set), 0);
- new = CONSTANT_P (arg) ? const1_rtx : const0_rtx;
- validate_change (insn, &SET_SRC (set), new, 0);
+ for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
+ if (INSN_P (insn)
+ && (set = single_set (insn)) != NULL_RTX
+ && GET_CODE (SET_SRC (set)) == CONSTANT_P_RTX)
+ {
+ arg = XEXP (SET_SRC (set), 0);
+ new = CONSTANT_P (arg) ? const1_rtx : const0_rtx;
+ validate_change (insn, &SET_SRC (set), new, 0);
- /* Remove the REG_EQUAL note from the insn. */
- if ((note = find_reg_note (insn, REG_EQUAL, NULL_RTX)) != 0)
- remove_note (insn, note);
- }
- }
+ /* Remove the REG_EQUAL note from the insn. */
+ if ((note = find_reg_note (insn, REG_EQUAL, NULL_RTX)) != 0)
+ remove_note (insn, note);
+ }
}