Tom Tromey b9bd6f7438 Reduce memory waste due to non-power-of-2 allocs ... This patch basically arranges for the allocation size of line_map buffers to be as close as possible to a power of two. This *significantly* decreases peak memory consumption as (macro) maps are numerous and stay live during all the compilation. The patch adds a new ggc_round_alloc_size interface to the ggc allocator. In each of the two main allocator implementations ('page' and 'zone') the function has been extracted from the main allocation function code and returns the actual size of the allocated memory region, thus giving a chance to the caller to maximize the amount of memory it actually uses from the allocated memory region. In the 'none' allocator implementation (that uses xmalloc) the ggc_round_alloc_size just returns the requested allocation size. Co-Authored-By: Dodji Seketeli <dodji@redhat.com> From-SVN: r180086		2011-10-17 12:00:07 +02:00
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cpp-id-data.h	directives.c (do_linemarker, do_line): Use CPP_STRING for ignored enum value.	2009-07-18 03:22:16 +00:00
cpplib.h	Support -fdebug-cpp option	2011-10-17 11:59:40 +02:00
line-map.h	Reduce memory waste due to non-power-of-2 allocs	2011-10-17 12:00:07 +02:00
mkdeps.h	directives.c (do_linemarker, do_line): Use CPP_STRING for ignored enum value.	2009-07-18 03:22:16 +00:00
symtab.h	Update Copyright years for files modified in 2010.	2011-01-03 21:52:22 +01:00