emacs, branch feature/igc2 Emacs is the extensible, customizable, self-documenting real-time display editor. Simplify set_header a bit. 2026-02-22T18:14:25+00:00 Helmut Eller 2026-02-22T18:14:25+00:00 f29215c3d31d7b842bc1b7a9f5d15340b15d5d98 * src/igc.c (set_header): Use uint64_t to avoid compiler warnings on 32-bit targets. 
* src/igc.c (set_header): Use uint64_t to avoid compiler warnings on
32-bit targets.
Remove tag2 from igc_header 2026-02-22T18:05:02+00:00 Helmut Eller 2026-02-22T18:05:02+00:00 5f0fdcdd1ccaceb7a7d4f878ec63f79dbeb5dc40 We have switched from the AWL pool to the AWL0 pool everywhere. So we no longer need the tag2 to make both words unalignend in the wide-int configuration. * src/igc-types.h (IGC_HEADER_NWORDS_BITS): Make this 32 everyhwere. (union igc_header): Remove the tag2 bitfield. * src/igc.c (set_header): Setting tag2 is no longer needed. 
We have switched from the AWL pool to the AWL0 pool everywhere.  So we
no longer need the tag2 to make both words unalignend in the wide-int
configuration.

* src/igc-types.h (IGC_HEADER_NWORDS_BITS): Make this 32 everyhwere.
(union igc_header): Remove the tag2 bitfield.
* src/igc.c (set_header): Setting tag2 is no longer needed.
Minor simplification 2026-02-22T16:08:20+00:00 Helmut Eller 2026-02-22T16:08:20+00:00 3801ecddcb923365141ccb98812cca48dc3b914e * mps/code/trace.c (tracePropagateToLowerRanks): Move the hack from traceFindGrey to here and simplify it a bit. * (traceScanSegRes): Remove a debugging assertion that can't fail. 
* mps/code/trace.c (tracePropagateToLowerRanks): Move the hack from
traceFindGrey to here and simplify it a bit.
* (traceScanSegRes): Remove a debugging assertion that can't fail.
* mps/code/poolawl.c (aephFixKey): Add the fixed key to the summary. 2026-02-22T16:06:17+00:00 Helmut Eller 2026-02-22T16:06:17+00:00 e4971c4f1e72a1e621a63ad66ef9df336239beaf 






Add some assertions
2026-02-20T12:50:09+00:00

Helmut Eller

2026-02-20T12:50:09+00:00

3ed4886fe6daa3fae172cb710bf939bc9d2ac4e2

* src./igc.c (igc_header_type, igc_header_hash, igc_header_nwords):
Check the tag in the non-exthdr case.





* src./igc.c (igc_header_type, igc_header_hash, igc_header_nwords):
Check the tag in the non-exthdr case.







* src/igc.c (set_header): Use bitfields instead of shifting/oring.
2026-02-20T12:29:52+00:00

Helmut Eller

2026-02-20T12:29:52+00:00

1cb0262ce86f2c7432a357ecdf5a95eaba20650e












Use bitfields instead of shifting/masking
2026-02-20T09:04:28+00:00

Helmut Eller

2026-02-20T09:04:28+00:00

032735d416b180b78cf8136b72f6b2d333fd53ef

* src/igc.c (header_hash, header_type, header_tag, header_exthdr):
Adapt and use Gerd's version.





* src/igc.c (header_hash, header_type, header_tag, header_exthdr):
Adapt and use Gerd's version.







Unify union gc_header and struct igc_header
2026-02-20T08:54:12+00:00

Helmut Eller

2026-02-20T08:34:19+00:00

610412bf9357202fddd7de26d8bbcadcee568595

Rename union gc_header to union igc_header and use that everywhere.

We already need the GC_HEADER macro to paper over differences between
the HAVE_MPS/!HAVE_MPS version.  There's little value in having the
union gc_union as it was defined differently anyway.

* src/igc-types.h (union igc_header): Renamed from union gc_header.
* src/igc.h (igc_init_header): Renamed from gc_init_header and
moved here from lisp.h.
(igc_init_header_bytes): Idem.
* src/lisp.h (gc_init_header, gc_init_header_bytes): Moved to igc.h.
(GC_HEADER, GC_HEADER_INIT): Adjust to union igc_header.
* src/igc.c: Use union gc_header instead of struct igc_header.
* src/keyboard.c (init_keyboard): Use igc_init_header.
* src/lread.c (init_obarray_once): Use igc_init_header.
* src/thread.c (init_threads): Use igc_init_header.
* src/pdumper.c: Unconditionally include igc-types.h.
(Fdump_emacs_portable) [HAVE_MPS]: Use union igc_header.





Rename union gc_header to union igc_header and use that everywhere.

We already need the GC_HEADER macro to paper over differences between
the HAVE_MPS/!HAVE_MPS version.  There's little value in having the
union gc_union as it was defined differently anyway.

* src/igc-types.h (union igc_header): Renamed from union gc_header.
* src/igc.h (igc_init_header): Renamed from gc_init_header and
moved here from lisp.h.
(igc_init_header_bytes): Idem.
* src/lisp.h (gc_init_header, gc_init_header_bytes): Moved to igc.h.
(GC_HEADER, GC_HEADER_INIT): Adjust to union igc_header.
* src/igc.c: Use union gc_header instead of struct igc_header.
* src/keyboard.c (init_keyboard): Use igc_init_header.
* src/lread.c (init_obarray_once): Use igc_init_header.
* src/thread.c (init_threads): Use igc_init_header.
* src/pdumper.c: Unconditionally include igc-types.h.
(Fdump_emacs_portable) [HAVE_MPS]: Use union igc_header.







Check gc_header bitfield ABI sanity at startup
2026-02-19T22:04:31+00:00

Helmut Eller

2026-02-19T22:04:31+00:00

784d791cdd5dda1c4f2ea3c03ccdf359ce35615e

* src/igc.c (check_header_abi, check_header_bit): New functions.
(init_igc): Call it.





* src/igc.c (check_header_abi, check_header_bit): New functions.
(init_igc): Call it.







Describe gc_header bitfields for big-endian machines
2026-02-19T22:01:52+00:00

Helmut Eller

2026-02-19T22:01:52+00:00

f966395d93df7a6242d1d293f5677c097f7fb587

* src/igc-types.h (union gc_header): Add the WORDS_BIGENDIAN case.





* src/igc-types.h (union gc_header): Add the WORDS_BIGENDIAN case.