2026-10-18 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* src/SDCCval.c: Detect overflow while accumulating each digit
	  of an integer literal (bug #4127).  Produce one range warning
	  per literal.
	  Do not alter SDCC's previous interpretation of the accumulated
	  value.  Use the target's unsigned long long representation and
	  check that it matches LONGLONGSIZE.
	* support/regression/tests/bug-4127.c: Test that valid boundary
	  values are parsed correctly by using arithmetic to make the
	  tests independent of <limits.h>.
	* support/valdiag/tests/bug-4127.c: Test that overflowing literal
	  values are diagnosed with each supported radix and with digit
	  separators.
	  Test that valid boundary values and literals with a huge number
	  of leading zeros are not incorrectly diagnosed.

2026-10-18 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* src/SDCCast.c:
	  Require a scalar first operand of a conditional expression
	  allowing array and function conversion (bug #4084).
	  Diagnose structure, union and void conditions; preserve valid
	  arithmetic, pointer and nullptr_t conditions.
	* support/valdiag/tests/bug-4084.c:
	  Add test cases for invalid usage of structure, union and void types.
	  Add test cases for valid usage of int, float, pointer, array and
	  function types; also a test case for valid usage of nullptr_t.

2026-10-18 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* src/SDCCast.c, src/SDCCsymt.c: Use consistent function-pointer kinds
	  for type names and converted _Generic controlling expressions, so
	  equivalent types compare correctly (bug #4107).
	* support/valdiag/tests/bug-4107.c:
	  Test rejection of duplicate compatible function-pointer associations
	  in generic selections.
	* support/regression/tests/bug-4107.c:
	  Test equivalent function-pointer spellings, function-designator
	  conversion and pointers to function pointers.
	  Test banked function pointers and distinct object address spaces on
	  MCS51.

2026-10-18 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* src/SDCC.y: Append leading pointers after the complete direct abstract
	  declarator, preserving array dimensions in unnamed parameters and type
	  names (bug #4105).
	* support/regression/tests/bug-4105.c: Add regression tests for
	  equivalent declarations, array parameter adjustment, qualifiers,
	  pointer depth and array sizes. Test indexing, pointer arithmetic and
	  calls through unnamed parameter declarations.

2026-10-17 Philipp Klaus Krause <philipp@colecovision.eu>

	* support/regression/tests/bug-4123-3.c:
	  Further tests for z80 peephole optimizer rules, towards fixing bug #4123.

2026-10-17 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* src/SDCC.y,
	* src/SDCCsymt.h,
	* src/SDCCerr.c,
	* src/SDCCerr.h:
	Track member lists under construction, including C23 redefinitions.
	Diagnose a nested definition before it can complete the enclosing
	type, and retain a separate type for error recovery (bug #4116).
	* support/valdiag/tests/bug-4116.c:
	Test that an error is reported for union and struct redefinitions
	nested within themselves, including indirectly and when a struct
	tag is reused for a nested union or vice versa.
	Test that no error is reported for a struct or union definition
	that contains a pointer to itself, and other valid cases.

2026-10-17 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* src/SDCCast.c (constExprTree): Read the constexpr flag from the
	  symbol's type specifier, including for pointer objects (bug #4151).
	* support/regression/tests/bug-4151.c: Test compound literals with
	  pointer initialisers supplied by parameters and local variables.

2026-10-17 Philipp Klaus Krause <philipp@colecovision.eu>

	* support/scripts/sdcc.nsi:
	  Include HuC6280 port in Windows installer, fix bug #4114.
	* support/regression/tests/bug-4123-2.c:
	  Further tests for z80 peephole optimizer rules, towards fixing bug #4123.

2026-10-17 Maarten Brock <sourceforge.brock AT dse.nl>

	* support/valdiag/tests/bug-4139.c: fixed for pdk13 & pdk15
	* support/regression/tests/bug2783061.c: fixed warning 357 instead of ignoring it,
	  enabled for all targets

2026-10-17 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* src/SDCCgenconstprop.cc: Do not add a fall-through edge after calls
	  to _Noreturn functions in the value-analysis graph. Avoid spurious
	  _Optional dereference diagnostics after a null guard (bug #4146).
	* support/valdiag/tests/bug-4146.c: Test guarded calls and