Simplify LTO section format.
2019-07-22 Martin Liska <mliska@suse.cz> * lto-section-in.c (lto_get_section_data): Use new function get_compression. * lto-streamer-out.c (produce_lto_section): Use set_compression to encode compression algorithm. * lto-streamer.h (struct lto_section): Do not use bitfields in the format. From-SVN: r273661
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@ -1,3 +1,12 @@
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2019-07-22 Martin Liska <mliska@suse.cz>
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* lto-section-in.c (lto_get_section_data):
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Use new function get_compression.
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* lto-streamer-out.c (produce_lto_section): Use
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set_compression to encode compression algorithm.
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* lto-streamer.h (struct lto_section): Do not
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use bitfields in the format.
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2019-07-22 Martin Liska <mliska@suse.cz>
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2019-07-22 Martin Liska <mliska@suse.cz>
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PR driver/91172
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PR driver/91172
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@ -161,7 +161,8 @@ lto_get_section_data (struct lto_file_decl_data *file_data,
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stream = lto_start_uncompression (lto_append_data, &buffer);
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stream = lto_start_uncompression (lto_append_data, &buffer);
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lto_uncompress_block (stream, data, *len);
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lto_uncompress_block (stream, data, *len);
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lto_end_uncompression (stream, file_data->lto_section_header.compression);
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lto_end_uncompression (stream,
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file_data->lto_section_header.get_compression ());
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*len = buffer.length - header_length;
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*len = buffer.length - header_length;
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data = buffer.data + header_length;
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data = buffer.data + header_length;
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@ -2403,7 +2403,8 @@ produce_lto_section ()
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bool slim_object = flag_generate_lto && !flag_fat_lto_objects;
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bool slim_object = flag_generate_lto && !flag_fat_lto_objects;
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lto_section s
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lto_section s
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= { LTO_major_version, LTO_minor_version, slim_object, compression, 0 };
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= { LTO_major_version, LTO_minor_version, slim_object, 0 };
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s.set_compression (compression);
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lto_write_data (&s, sizeof s);
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lto_write_data (&s, sizeof s);
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lto_end_section ();
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lto_end_section ();
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destroy_output_block (ob);
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destroy_output_block (ob);
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@ -394,9 +394,22 @@ struct lto_section
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{
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{
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int16_t major_version;
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int16_t major_version;
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int16_t minor_version;
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int16_t minor_version;
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unsigned char slim_object: 1;
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unsigned char slim_object;
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lto_compression compression: 4;
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int32_t reserved0: 27;
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/* Flags is a private field that is not defined publicly. */
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uint16_t flags;
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/* Set compression to FLAGS. */
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inline void set_compression (lto_compression c)
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{
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flags = c;
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}
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/* Get compression from FLAGS. */
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inline lto_compression get_compression ()
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{
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return (lto_compression) flags;
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}
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};
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};
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STATIC_ASSERT (sizeof (lto_section) == 8);
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STATIC_ASSERT (sizeof (lto_section) == 8);
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