When dumping the trees during compilation GCC-4.1-2005010[1,8] went into
an endless loop during the *.c.t22.copyprop or the *.c.t37.copyprop2 dump, thus
generating larger and larger files. After the file reaches 2GB in size gcc
stops.
The same happens with gcc-4.1-20050515 in the steps *.c.t24.copyprop or
*.c.t38.copyprop2.
The dumper seems to follow and print a copy propagation chain like this in all
the cases: A->B->A->B->A->B->...
I've observed this behaviour with many source files.
--
Summary: -ftree-dump-all-details hangs during *.c.t24.copyprop or
*.c.t38.copyprop2
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: minor
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: Ralf_Recker at gmx dot de
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21732
