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[Bug target/64600] [5.0 regression] arm-rtems ICE on valid code (-mcpu=xscale)
- From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 15 Jan 2015 19:45:20 +0000
- Subject: [Bug target/64600] [5.0 regression] arm-rtems ICE on valid code (-mcpu=xscale)
- Auto-submitted: auto-generated
- References: <bug-64600-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64600
--- Comment #10 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
(In reply to ktkachov from comment #8)
> The ICE is in the wide-int bit_and code when trying to process the rtx:
>
> (and:SI
> (const_int 4294963215 [0xfffff00f])
> (const_int 4111 [0x100f])
> )
>
> In particular it seems to have problems constructing a wide-int for
> (const_int 4294963215 [0xfffff00f])
Yeah, that isn't a valid SImode const_int. It needs to be sign-extended rather
than zero-extended from bit 31.