https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111675
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Gaius Mulley <ga...@gcc.gnu.org>: https://gcc.gnu.org/g:2b783fe2e8103d97db7c5d6c1514ba16091f39f6 commit r14-4556-g2b783fe2e8103d97db7c5d6c1514ba16091f39f6 Author: Gaius Mulley <gaiusm...@gmail.com> Date: Wed Oct 11 13:26:47 2023 +0100 PR modula2/111675 Incorrect packed record field value passed to a procedure This patch allows a packed field to be extracted and passed to a procedure. It ensures that the subrange type is the same for both the procedure and record field. It also extends the <* bytealignment (0) *> to cover packed subrange types. gcc/m2/ChangeLog: PR modula2/111675 * gm2-compiler/M2CaseList.mod (appendTree): Replace InitStringCharStar with InitString. * gm2-compiler/M2GCCDeclare.mod: Import AreConstantsEqual. (DeclareSubrange): Add zero alignment test and call BuildSmallestTypeRange if necessary. (WalkSubrangeDependants): Walk the align expression. (IsSubrangeDependants): Test the align expression. * gm2-compiler/M2Quads.mod (BuildStringAdrParam): Correct end name. * gm2-compiler/P2SymBuild.mod (BuildTypeAlignment): Allow subranges to be zero aligned (packed). * gm2-compiler/SymbolTable.mod (Subrange): Add Align field. (MakeSubrange): Set Align to NulSym. (PutAlignment): Assign Subrange.Align to align. (GetAlignment): Return Subrange.Align. * gm2-gcc/m2expr.cc (noBitsRequired): Rewrite. (calcNbits): Rename ... (m2expr_calcNbits): ... to this and test for negative values. (m2expr_BuildTBitSize): Replace calcNBits with m2expr_calcNbits. * gm2-gcc/m2expr.def (calcNbits): Export. * gm2-gcc/m2expr.h (m2expr_calcNbits): New prototype. * gm2-gcc/m2type.cc (noBitsRequired): Remove. (m2type_BuildSmallestTypeRange): Call m2expr_calcNbits. (m2type_BuildSubrangeType): Create range_type from build_range_type (type, lowval, highval). gcc/testsuite/ChangeLog: PR modula2/111675 * gm2/extensions/run/pass/packedrecord3.mod: New test. Signed-off-by: Gaius Mulley <gaiusm...@gmail.com>