https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111675
--- Comment #2 from CVS Commits ---
The master branch has been updated by Gaius Mulley :
https://gcc.gnu.org/g:2b783fe2e8103d97db7c5d6c1514ba16091f39f6
commit r14-4556-g2b783fe2e8103d97db7c5d6c1514ba16091f39f6
Author: Gaius Mulley
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
