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[Bug optimization/11601] if-conversion2 gets rid of branch and return when used with builtins
- From: "pinskia at physics dot uc dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Aug 2003 16:43:06 -0000
- Subject: [Bug optimization/11601] if-conversion2 gets rid of branch and return when used with builtins
- References: <20030720120718.11601.pinskia@physics.uc.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11601
------- Additional Comments From pinskia at physics dot uc dot edu 2003-08-03 16:43 -------
The reason why it is target spefic is because PPC has condition branch return.
The RTL that is removed is
(jump_insn 11 10 20 0 (set (pc)
(if_then_else (eq (reg:CC 120)
(const_int 0 [0x0]))
(label_ref 18)
(pc))) 494 {*rs6000.md:13671} (insn_list 10 (nil))
(expr_list:REG_DEAD (reg:CC 120)
(expr_list:REG_BR_PROB (const_int 5000 [0x1388])
(nil))))