* bitmap.h (BITMAP_XMALLOC): New macro.
* flow.c (CLEAN_ALLOCA): Remove.
(delete_unreachable_blocks): Use xmalloc/xcalloc instead of alloca.
(life_analysis): Likewise.
(update_life_info): Don't use CLEAN_ALLOCA.
(life_analysis_1): Use xmalloc/xcalloc instead of alloca.
(calculate_global_regs_live): Likewise.
(print_rtl_with_bb): Likewise.
(verify_flow_info): Likewise.
* global.c (global_alloc): Likewise.
(global_conflicts): Likewise.
* integrate.c (save_for_inline_nocopy): Likewise.
(expand_inline_function): Likewise.
* jump.c (jump_optimize_1): Likewise.
(duplicate_loop_exit_test): Likewise.
(thread_jumps): Likewise.
* loop.c (loop_optimize): Likewise.
(combine_givs): Likewise.
(recombine_givs): Likewise.
* reorg.c (dbr_schedule): Likewise.
* unroll.c (unroll_loop): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30333 138bc75d-0d04-0410-961f-82ee72b054a4