2026-10-21 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/z80/gen.c:
	  Fix bug #4166, inspired by patch by Christopher Bazley.
	* support/regression/tests/bug-4166.c:
	  Test for bug #4166, patch by Christopher Bazley.

2026-10-21 Maarten Brock <sourceforge.brock AT dse.nl>

	* device/include/stdbit.h: fixed parentheses in macros,
	  removed signed _BitInt(1) case because of warning 315,
	  check __SDCC_BITINT_MAXWIDTH >= 64 for stdc_rotate_left/right,
	  picked from patch for bug #4147 by zeynelsagcan
	* device/lib/__stdc_bit_ceilull.c,
	* device/lib/__stdc_bit_width.c,
	* device/lib/__stdc_count_ones.c,
	* device/lib/__stdc_first_leading_one.c,
	* device/lib/__stdc_first_trailing_one.c,
	* device/lib/__stdc_leading_zeros.c,
	* device/lib/__stdc_trailing_ones.c: define ULLONG_WIDTH if non-existent,
	  always include assert.h
	* device/lib/pic16/libc/Makefile.am,
	* device/lib/pic16/libc/Makefile.in: added __stdc_* sources

2026-10-21 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/valdiag/tests/bug-4051.c:
	  Test diagnostics for the reported malformed declarations produced by an
	  undefined concatenation macro (bug #4051).

2026-10-21 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/regression/tests/bug-3862.c:
	  Test a compound literal using inline function parameters and check the
	  returned pointer and structure members (bug #3862).

2026-10-21 Philipp Klaus Krause <philipp@colecovision.eu>

	* device/include/stdbit.h:
	  Pick some bits from patch for bug #4147 by zeynelsagcan.

2026-10-21 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/valdiag/tests/bug-3835.c:
	  Compile both reduced memory-mapped member-access examples from the
	  discussion without executing them (bug #3835).

2026-10-21 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/regression/tests/bug-3470.c:
	  Correct the test heading, check the returned value and enable the existing
	  reproducer for MCS51 with stack parameters (bug #3470).

2026-10-21 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/regression/tests/bug-3408.c:
	  Test a local structure used in an aggregate initialiser (bug #3408).

2026-10-21 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/regression/tests/bug-3392.c:
	  Test the reported constant-folded logical and arithmetic negations
	  (bug #3392).

2026-10-21 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/valdiag/tests/bug-3370.c:
	  Test diagnostics for excess aggregate initialisers following a function
	  definition (bug #3370).

2026-10-21 Philipp Klaus Krause <philipp@colecovision.eu>

	* support/regression/tests/bug-4123-2.c:
	  Further test for z80 peephole optimizer rules, fix bug #4123.
	* src/z80/peeph.def:
	  Remove peephole optimizer rule for which no tests were found.

2026-10-20 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/valdiag/tests/bug-3053.c:
	  Compile the DS390 va_list pointer reproducer without executing its
	  undefined behaviour (bug #3053).

2026-10-20 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/valdiag/tests/bug-3037.c:
	  Compile the reported inline extern reference and diagnose the duplicate
	  parameter name from the discussion (bug #3037).

2026-10-20 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/valdiag/tests/bug-3016.c:
	  Test diagnostics for the original malformed file-scope array bound
	  (bug #3016).

2026-10-20 Christopher Bazley <chris.bazley.wg14@gmail.com>

	* support/valdiag/tests/bug-2860.c:
	  Compile both reported identifier-list declarations without executing the
	  function with no return statement (bug #2860).