[Bug target/78262] [7 Regression] wrong code with -fschedule-insns

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78262

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2016-11-09
           Assignee|unassigned at gcc dot gnu.org      |ubizjak at gmail dot com
   Target Milestone|---                         |5.5
     Ever confirmed|0                           |1

--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
Ouch.

Patch in testing:

--cut here--
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 6e0348d..a5650a1 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -10339,7 +10339,7 @@
   "operands[2] = gen_lowpart (QImode, operands[2]);")

 (define_insn_and_split "*<shift_insn><mode>3_doubleword"
-  [(set (match_operand:DWI 0 "register_operand" "=r")
+  [(set (match_operand:DWI 0 "register_operand" "=&r")
        (any_shiftrt:DWI (match_operand:DWI 1 "register_operand" "0")
                         (match_operand:QI 2 "nonmemory_operand" "<S>c")))
    (clobber (reg:CC FLAGS_REG))]
--cut here--