[Bug regression/42351] New: 64 bit arm gcc consumes huge memory

[carrot at google dot com]

Build a 64bit arm-eabi gcc, run the regression tests on simulator, testcase
limits-fnargs.c always failed because of timeout.

The command line is:
/home/carrot/compiler/armobj/gcc/xgcc -B/home/carrot/compiler/armobj/gcc/   -O3
-g  -w -DSTACK_SIZE=16384 -c    -o limits-fnargs.o
/home/carrot/compiler/gcc4.5/gcc/testsuite/gcc.c-torture/compile/limits-fnargs.c

It is new regression caused by patch 151348. Before this patch, cc1 consumes
only about 200MB memory. After applying this patch, cc1 quickly consumes more
than 11GB memory and does a lot of page in and page out, then causes time out
at last.


-- 
           Summary: 64 bit arm gcc consumes huge memory
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: regression
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: carrot at google dot com
 GCC build triplet: i686-linux
  GCC host triplet: i686-linux
GCC target triplet: arm-eabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42351