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[Bug target/60657] [4.9 Regression] ICE: error: insn does not satisfy its constraints
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 07 Apr 2014 22:11:27 +0000
- Subject: [Bug target/60657] [4.9 Regression] ICE: error: insn does not satisfy its constraints
- Auto-submitted: auto-generated
- References: <bug-60657-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60657
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
While the improved predicates make the first IN_RANGE tests unneeded, IMHO it
should still verify what the second IN_RANGE tests did, i.e. that operands[2]
is not 0 and at most 32 - third operand. I think the combiner just blindly
tries to match and simplify, all the verification is performed through trying
to recog the insn.