[ forwarded from http://bugs.debian.org/317563 ]
The test case chews up 789m of memory and then doesn't seem to progress
for at least 10 minutes with -O2 -fno-enforce-eh-specs. Functions showing up
prominently in a profile are:
samples % symbol name
34188 22.3480 bitmap_set_bit
18170 11.8774 free_deps
17475 11.4231 sched_analyze_insn
14018 9.1633 alloc_INSN_LIST
10173 6.6499 free_list
6100 3.9874 free_INSN_LIST_list
3946 2.5794 bitmap_bit_p
2442 1.5963 build_tree_conflict_graph
With just -O2, it finishes in 1:09 minute using 341m. With g++ 4.1, it finishes
in 1:21 using 148m even with -fno-enforce-eh-specs. g++-3.4 doesn't like this
test case.
This is on alphaev68-linux. The original report was on powerpc.
--
Summary: Huge memory usage and infinite(?) loop with -fno-
enforce-eh-specs
Product: gcc
Version: 4.0.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: debian-gcc at lists dot debian dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22392
