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[Bug middle-end/15825] [3.5 Regression] if-cvt optimisation patch noce_try_sign_mask breaks apple-ppc-darwin port
- 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: 4 Jun 2004 20:04:46 -0000
- Subject: [Bug middle-end/15825] [3.5 Regression] if-cvt optimisation patch noce_try_sign_mask breaks apple-ppc-darwin port
- References: <20040604174733.15825.fjahanian@apple.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-06-04 20:04 -------
Actually looking again there is a non-compare equal:
[(set (match_operand:SI 0 "gpc_reg_operand" "=r,r,r,r,r")
(eq:SI (match_operand:SI 1 "gpc_reg_operand" "%r,r,r,r,r")
(match_operand:SI 2 "reg_or_cint_operand" "r,O,K,L,I")))
(clobber (match_scratch:SI 3 "=r,&r,r,r,r"))]
Looks like someone forgets to add the clobbers, that is where the problem is.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15825