Test perlbmk from SPEC CPU2000 hangs on powerpc-linux and i686-linux when
compiled with "-O2 -fno-tree-dce -fno-tree-dominator-opts". I didn't manage to
get a minimized testcase that fails on both targets, but do have two slightly
different tests. Both of them hang in the loop that begins "for (t++;", just
as 253.perlbmk does.
A regression hunt on powerpc-linux identified this patch:
http://gcc.gnu.org/viewcvs?view=rev&rev=127993
r127993 | nickc | 2007-08-31 14:28:38 +0000 (Fri, 31 Aug 2007)
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Summary: perlbmk hangs with -O2 -fno-tree-dce -fno-tree-
dominator-opts
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: janis at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34034
