http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57810
Bug ID: 57810
Summary: Waste work in validate_const_int()
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: pchang9 at cs dot wisc.edu
CC: nistor1 at illinois dot edu
The problem appears in revision 200588 in version 4.9.
In method "validate_const_int()" in gcc/read-rtl.c, the loop on line 804 should
break immediately after "valid" is set to "0". All the iterations after "valid"
set to "0" do not perform any useful work, at best they just set "valid" again
to "0".
