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[Bug target/65242] [5 Regression] ICE (in gen_add2_insn, at optabs.c:4761) on powerpc64le-linux-gnu
- From: "meissner at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 11 Mar 2015 16:36:59 +0000
- Subject: [Bug target/65242] [5 Regression] ICE (in gen_add2_insn, at optabs.c:4761) on powerpc64le-linux-gnu
- Auto-submitted: auto-generated
- References: <bug-65242-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65242
--- Comment #13 from Michael Meissner <meissner at gcc dot gnu.org> ---
My gut feeling is we don't want to change ?m to !m, because it might impact
floating point conversions <-> integer, where we need the DI mode in a floating
point register. In addition, I might worry that it could impact breaking apart
_Decimal128 values, which I believe uses DImode for the two parts. I was also
trying to make the minimal change, and I didn't want an iteration where we fix
up any collateral damage.