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[Bug rtl-optimization/17931] andl and testb are not combined
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Oct 2004 14:01:48 -0000
- Subject: [Bug rtl-optimization/17931] andl and testb are not combined
- References: <20041011135226.17931.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-11 14:01 -------
Confirmed, combine does not simplify:
(insn 14 13 15 0 (parallel [
(set (reg:QI 64)
(and:QI (reg:QI 63)
(const_int 1 [0x1])))
(clobber (reg:CC 17 flags))
]) 206 {*andqi_1} (insn_list:REG_DEP_TRUE 13 (nil))
(expr_list:REG_UNUSED (reg:CC 17 flags)
(nil)))
(insn 15 14 16 0 (set (reg:CCZ 17 flags)
(compare:CCZ (reg:QI 64)
(const_int 0 [0x0]))) 6 {*cmpqi_ccno_1} (insn_list:REG_DEP_TRUE 14 (nil))
(expr_list:REG_DEAD (reg:QI 64)
(nil)))
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-10-11 14:01:46
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17931