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[Bug target/25662] [4.0/4.1 Regression] Unrecognizable insn with -O on PPC
- 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 Jan 2006 14:37:23 -0000
- Subject: [Bug target/25662] [4.0/4.1 Regression] Unrecognizable insn with -O on PPC
- References: <bug-25662-10332@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from pinskia at gcc dot gnu dot org 2006-01-04 14:37 -------
This works on the mainline as of today but failed with 4.2.0 20051219.
Confirmed. Though I should note this is really weird as DOM is messing up in
that version of GCC and we still have 1 << -1 which is not being folded.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Severity|normal |critical
Component|middle-end |target
Known to fail|4.0.3 4.1.0 4.2.0 |4.0.3 4.1.0
Known to work|3.4.5 |3.4.5 4.2.0
Summary|[4.0/4.1/4.2 Regression] |[4.0/4.1 Regression]
|Unrecognizable insn with -O |Unrecognizable insn with -O
|on PPC |on PPC
Target Milestone|--- |4.0.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25662