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[Bug target/78904] zero-extracts are not effective
- From: "uros at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 28 Dec 2016 15:16:58 +0000
- Subject: [Bug target/78904] zero-extracts are not effective
- Auto-submitted: auto-generated
- References: <bug-78904-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78904
--- Comment #13 from uros at gcc dot gnu.org ---
Author: uros
Date: Wed Dec 28 15:16:26 2016
New Revision: 243955
URL: https://gcc.gnu.org/viewcvs?rev=243955&root=gcc&view=rev
Log:
PR target/78904
* config/i386/constraints.md (Bn): New special memory constraint.
* config/i386/predicates.md (norex_memory_operand): New predicate.
* config/i386/i386.md (*extzvqi_mem_rex64): New insn pattern and
corresponding peephole2 pattern.
testsuite/ChangeLog:
PR target/78904
* gcc.target/i386/pr78904-4.c: New test.
* gcc.target/i386/pr78904-5.c: Ditto.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr78904-4.c
trunk/gcc/testsuite/gcc.target/i386/pr78904-5.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/constraints.md
trunk/gcc/config/i386/i386.md
trunk/gcc/config/i386/predicates.md
trunk/gcc/testsuite/ChangeLog