[Bug c/29172] --combine can't handle #pragma once

["tromey at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #7 from tromey at gcc dot gnu dot org  2007-12-06 18:56 -------
Subject: Bug 29172

Author: tromey
Date: Thu Dec  6 18:56:26 2007
New Revision: 130656

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130656
Log:
gcc
        PR c/29172:
        * c-opts.c (c_common_parse_file): Call cpp_clear_file_cache.
libcpp
        PR c/29172:
        * internal.h (struct cpp_reader) <file_hash_entries>: Changed
        type.
        <file_hash_entries_allocated, file_hash_entries_used>: Removed.
        * files.c (FILE_HASH_POOL_SIZE): New macro.
        (struct file_hash_entry_pool): New.
        (destroy_all_cpp_files): New function.
        (allocate_file_hash_entries): Allocate a file_hash_entry_pool.
        (new_file_hash_entry): Update.
        (free_file_hash_entries): New function.
        (_cpp_cleanup_files): Call free_file_hash_entries and
        destroy_all_cpp_files.
        (cpp_clear_file_cache): New function.
        * include/cpplib.h (cpp_clear_file_cache): Declare.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-opts.c
    trunk/libcpp/ChangeLog
    trunk/libcpp/files.c
    trunk/libcpp/include/cpplib.h
    trunk/libcpp/internal.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29172