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[Bug target/67356] PowerPC insn does not satisfy its constraints
- From: "amodra at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 27 Aug 2015 13:57:11 +0000
- Subject: [Bug target/67356] PowerPC insn does not satisfy its constraints
- Auto-submitted: auto-generated
- References: <bug-67356-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67356
--- Comment #2 from Alan Modra <amodra at gcc dot gnu.org> ---
Author: amodra
Date: Thu Aug 27 13:56:39 2015
New Revision: 227260
URL: https://gcc.gnu.org/viewcvs?rev=227260&root=gcc&view=rev
Log:
[RS6000] Correct constraints for ior<mode>_mask
ior<mode>_mask always splits to rtl matching rotl<mode>3_insert. The
latter requires one of its input operands match the output, so let
reload/lra know the equivalent operand match must also occur for
ior<mode>_mask.
PR target/67356
* config/rs6000/rs6000.md (ior<mode>_mask): Use constraint "0"
for operand 1.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/rs6000/rs6000.md