------- Additional Comments From uros at kss-loka dot si 2004-12-21 15:25
-------
Does life analysis eat RTLs with -O2?
This part is from pr16111_.cpp.15.cse2:
...
(note 8 7 13 0 NOTE_INSN_FUNCTION_BEG)
(insn 13 8 16 0 (set (mem/i:SI (plus:SI (reg/f:SI 20 frame)
(const_int -4 [0xfffffffc])) [5 MASK+0 S4 A32])
(const_int -2147483648 [0x80000000])) 35 {*movsi_1} (nil)
(nil))
(insn 16 13 17 0 (set (reg:SF 73)
(mem:SF (plus:SI (reg/f:SI 20 frame)
(const_int -4 [0xfffffffc])) [7 S4 A32])) 60 {*movsf_1} (nil)
(nil))
(insn 17 16 21 0 (set (mem/i:SF (plus:SI (reg/f:SI 20 frame)
(const_int -8 [0xfffffff8])) [7 __F+0 S4 A32])
(reg:SF 73)) 60 {*movsf_1} (nil)
(nil))
...
And in pr16111_.cpp.16.life, (insn 13) is just missing. There is no
NOTE_INSN_DELETED, just plain nothing:
...
(note 8 7 16 0 NOTE_INSN_FUNCTION_BEG)
(insn 16 8 17 0 (set (reg:SF 73)
(mem:SF (plus:SI (reg/f:SI 20 frame)
(const_int -4 [0xfffffffc])) [7 S4 A32])) 60 {*movsf_1} (nil)
(nil))
(insn 17 16 21 0 (set (mem/i:SF (plus:SI (reg/f:SI 20 frame)
(const_int -8 [0xfffffff8])) [7 __F+0 S4 A32])
(reg:SF 73)) 60 {*movsf_1} (insn_list:REG_DEP_TRUE 16 (nil))
(expr_list:REG_DEAD (reg:SF 73)
(nil)))
...
Uros.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-12-21 15:25:19
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16111
