chemacs.git/src/bytecode.c, branch devmain emacs http://cgit.adnoto.dev/chemacs.git/atom?h=devmain 2026-01-01T12:54:34Z ; Add 2026 to copyright years. 2026-01-01T12:54:34Z Sean Whitton spwhitton@spwhitton.name 2026-01-01T12:54:34Z urn:sha1:c31f6adc31d48076c63ad82b83b2970e1b0d7b9b ; * src/bytecode.c (exec_byte_code): editing mistake (thanks Pip!) 2025-10-19T13:14:20Z Mattias Engdegård mattias.engdegard@gmail.com 2025-10-19T13:14:20Z urn:sha1:04cb852c13e5dca1dedc90befc4f57b7b7b11ed6 Disable -Wclobbered for GCC in exec_byte_code (bug#79610) 2025-10-19T13:09:01Z Mattias Engdegård mattias.engdegard@gmail.com 2025-10-19T13:02:08Z urn:sha1:346213f88373c50e09d620781c3dc51c21e92254 * src/bytecode.c (exec_byte_code): Disable the -Wclobbered warning for GCC locally as the old work-around doesn't appear to be effective for variables with explicitly assigned registers. This also allows us to remove that work-around which improves the code somewhat. ; exec_byte_code: refactor branch case 2025-10-19T12:57:34Z Mattias Engdegård mattias.engdegard@gmail.com 2025-10-16T15:01:24Z urn:sha1:076307b16354d2968388db4c7485e09ad2a34cb7 exec_byte_code: use fixed registers for top and pc (bug#79610) 2025-10-19T12:57:34Z Mattias Engdegård mattias.engdegard@gmail.com 2025-10-08T16:03:08Z urn:sha1:ae673ce20c22866ae4fbcae9a26afe8fad27ba54 GCC seems to have difficulty allocating important global interpreter variables in registers; telling it which ones to use for 'top' and 'pc' makes a big difference and seems to ease pressure enough for it to deal with other variables as well. We do it for AMD64 and ARM64. Clang doesn't seem to need these directives. It does result in -Wclobbered warnings that seem difficult to silence. * src/bytecode.c (BC_REG_TOP, BC_REG_PC): New. (exec_byte_code): Use them. ; exec_byte_code: don't re-use op in FETCH2 2025-10-19T12:57:34Z Mattias Engdegård mattias.engdegard@gmail.com 2025-09-23T13:01:20Z urn:sha1:fbc68bbc369b7d89b91763a687efbc0880c2420e exec_byte_code: reduce use of semi-global 'op' (bug#79610) 2025-10-19T12:57:34Z Mattias Engdegård mattias.engdegard@gmail.com 2025-09-22T16:33:01Z urn:sha1:b72e352cb42cf66e8750f6e4f53331730f544589 * src/bytecode.c (exec_byte_code): Re-type op from int to ptrdiff_t, which avoids some useless conversions. Reduce its use by using local variables for intra-block use, and another variable (arg) where it doesn't need to be alive across instruction dispatch. We also eliminate it where performance doesn't matter by re-fetching it from the instruction stream. All this should help the register allocator. ; * src/bytecode.c (exec_byte_code): Revert gratuituous style change 2025-09-19T08:31:54Z Mattias Engdegård mattias.engdegard@gmail.com 2025-09-19T08:31:54Z urn:sha1:9f174f08d87ca779fad77f3e8f1b619f23cc62d7 ; * src/bytecode.c (exec_byte_code): Fix coding style. 2025-09-19T01:28:17Z Po Lu luangruo@yahoo.com 2025-09-19T01:28:17Z urn:sha1:fb15f86248667063c45097d0036cc0b2d9309043 * src/bytecode.c (exec_byte_code): Better quitcounter reset value. 2025-09-18T20:13:38Z Mattias Engdegård mattias.engdegard@gmail.com 2025-09-18T20:10:55Z urn:sha1:7d5633d0f4785881fc3a1ad302b0a8d3f11dcc25 This value forces a quit check at the next backward branch, to avoid rare situations being hard to interrupt. Suggested by Pip Cet.