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[Bug target/25128] [m68k] Suboptimal comparisons against 65536
- From: "law at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 21 Nov 2016 18:19:44 +0000
- Subject: [Bug target/25128] [m68k] Suboptimal comparisons against 65536
- Auto-submitted: auto-generated
- References: <bug-25128-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25128
--- Comment #3 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Mon Nov 21 18:19:12 2016
New Revision: 242676
URL: https://gcc.gnu.org/viewcvs?rev=242676&root=gcc&view=rev
Log:
PR target/25128
* config/m68k/predicates.md (swap_peephole_relational_operator): New
predicate.
* config/m68k/m68k.md (relational tests against 65535/65536): New
peephole2.
PR target/25128
* gcc.target/m68k/pr25128.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/m68k/pr25128.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/m68k/m68k.md
trunk/gcc/config/m68k/predicates.md
trunk/gcc/testsuite/ChangeLog