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[Bug rtl-optimization/87507] IRA unnecessarily uses non-volatile registers during register assignment
- From: "bergner at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 13 Nov 2018 16:44:32 +0000
- Subject: [Bug rtl-optimization/87507] IRA unnecessarily uses non-volatile registers during register assignment
- Auto-submitted: auto-generated
- References: <bug-87507-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87507
Peter Bergner <bergner at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL|https://gcc.gnu.org/ml/gcc- |https://gcc.gnu.org/ml/gcc-
|patches/2018-11/msg00887.ht |patches/2018-11/msg01120.ht
|ml |ml
--- Comment #10 from Peter Bergner <bergner at gcc dot gnu.org> ---
Submitted a new patch that changes lower-subreg to decompose the problematic
register pairs into separate regs which are easier to allocate.