2003-10-21 Arnaud Charlet <charlet@act-europe.fr>

	* 3psoccon.ads, 3veacodu.adb, 3vexpect.adb, 3vsoccon.ads,
	3vsocthi.adb, 3vsocthi.ads, 3vtrasym.adb, 3zsoccon.ads,
	3zsocthi.adb, 3zsocthi.ads, 50system.ads, 51system.ads,
	55system.ads, 56osinte.adb, 56osinte.ads, 56taprop.adb,
	56taspri.ads, 56tpopsp.adb, 57system.ads, 58system.ads,
	59system.ads, 5aml-tgt.adb, 5bml-tgt.adb, 5csystem.ads,
	5dsystem.ads, 5fosinte.adb, 5gml-tgt.adb, 5hml-tgt.adb,
	5isystem.ads, 5lparame.adb, 5msystem.ads, 5psystem.ads,
	5sml-tgt.adb, 5sosprim.adb, 5stpopsp.adb, 5tsystem.ads,
	5usystem.ads, 5vml-tgt.adb, 5vsymbol.adb, 5vtraent.adb,
	5vtraent.ads, 5wml-tgt.adb, 5xparame.ads, 5xsystem.ads,
	5xvxwork.ads, 5yparame.ads, 5ytiitho.adb, 5zinit.adb,
	5zml-tgt.adb, 5zparame.ads, 5ztaspri.ads, 5ztfsetr.adb,
	5zthrini.adb, 5ztiitho.adb, 5ztpopsp.adb, 7stfsetr.adb,
	7straces.adb, 7strafor.adb, 7strafor.ads, 7stratas.adb,
	a-excach.adb, a-exexda.adb, a-exexpr.adb, a-exextr.adb,
	a-exstat.adb, a-strsup.adb, a-strsup.ads, a-stwisu.adb,
	a-stwisu.ads, bld.adb, bld.ads, bld-io.adb,
	bld-io.ads, clean.adb, clean.ads, ctrl_c.c,
	erroutc.adb, erroutc.ads, errutil.adb, errutil.ads,
	err_vars.ads, final.c, g-arrspl.adb, g-arrspl.ads,
	g-boubuf.adb, g-boubuf.ads, g-boumai.ads, g-bubsor.adb,
	g-bubsor.ads, g-comver.adb, g-comver.ads, g-ctrl_c.ads,
	g-dynhta.adb, g-dynhta.ads, g-eacodu.adb, g-excact.adb,
	g-excact.ads, g-heasor.adb, g-heasor.ads, g-memdum.adb,
	g-memdum.ads, gnatclean.adb, gnatsym.adb, g-pehage.adb,
	g-pehage.ads, g-perhas.ads, gpr2make.adb, gpr2make.ads,
	gprcmd.adb, gprep.adb, gprep.ads, g-semaph.adb,
	g-semaph.ads, g-string.adb, g-string.ads, g-strspl.ads,
	g-wistsp.ads, i-vthrea.adb, i-vthrea.ads, i-vxwoio.adb,
	i-vxwoio.ads, Makefile.generic, Makefile.prolog, Makefile.rtl,
	prep.adb, prep.ads, prepcomp.adb, prepcomp.ads,
	prj-err.adb, prj-err.ads, s-boarop.ads, s-carsi8.adb,
	s-carsi8.ads, s-carun8.adb, s-carun8.ads, s-casi16.adb,
	s-casi16.ads, s-casi32.adb, s-casi32.ads, s-casi64.adb,
	s-casi64.ads, s-casuti.adb, s-casuti.ads, s-caun16.adb,
	s-caun16.ads, s-caun32.adb, s-caun32.ads, s-caun64.adb,
	s-caun64.ads, scng.adb, scng.ads, s-exnint.adb,
	s-exnllf.adb, s-exnlli.adb, s-expint.adb, s-explli.adb,
	s-geveop.adb, s-geveop.ads, s-hibaen.ads, s-htable.adb,
	s-htable.ads, sinput-c.adb, sinput-c.ads, s-memcop.ads,
	socket.c, s-purexc.ads, s-scaval.adb, s-stopoo.adb,
	s-strcom.adb, s-strcom.ads, s-strxdr.adb, s-rident.ads,
	s-thread.adb, s-thread.ads, s-tpae65.adb, s-tpae65.ads,
	s-tporft.adb, s-traent.adb, s-traent.ads, styleg.adb,
	styleg.ads, styleg-c.adb, styleg-c.ads, s-veboop.adb,
	s-veboop.ads, s-vector.ads, symbols.adb, symbols.ads,
	tb-alvms.c, tb-alvxw.c, tempdir.adb, tempdir.ads,
	vms_conv.ads, vms_conv.adb, vms_data.ads,
	vxaddr2line.adb: Files added. Merge with ACT tree.

	* 4dintnam.ads, 4mintnam.ads, 4uintnam.ads, 52system.ads,
	5dosinte.ads, 5etpopse.adb, 5mosinte.ads, 5qosinte.adb,
	5qosinte.ads, 5qstache.adb, 5qtaprop.adb, 5qtaspri.ads,
	5stpopse.adb, 5uintman.adb, 5uosinte.ads, adafinal.c,
	g-enblsp.adb, io-aux.c, scn-nlit.adb, scn-slit.adb,
	s-exnflt.ads, s-exngen.adb, s-exngen.ads, s-exnlfl.ads,
	s-exnlin.ads, s-exnsfl.ads, s-exnsin.ads, s-exnssi.ads,
	s-expflt.ads, s-expgen.adb, s-expgen.ads, s-explfl.ads,
	s-explin.ads, s-expllf.ads, s-expsfl.ads, s-expsin.ads,
	s-expssi.ads, style.adb: Files removed. Merge with ACT tree.

	* 1ic.ads, 31soccon.ads, 31soliop.ads, 3asoccon.ads,
	3bsoccon.ads, 3gsoccon.ads, 3hsoccon.ads, 3ssoccon.ads,
	3ssoliop.ads, 3wsoccon.ads, 3wsocthi.adb, 3wsocthi.ads,
	3wsoliop.ads, 41intnam.ads, 42intnam.ads, 4aintnam.ads,
	4cintnam.ads, 4gintnam.ads, 4hexcpol.adb, 4hintnam.ads,
	4lintnam.ads, 4nintnam.ads, 4ointnam.ads, 4onumaux.ads,
	4pintnam.ads, 4sintnam.ads, 4vcaldel.adb, 4vcalend.adb,
	4vintnam.ads, 4wexcpol.adb, 4wintnam.ads, 4zintnam.ads,
	51osinte.adb, 51osinte.ads, 52osinte.adb, 52osinte.ads,
	53osinte.ads, 54osinte.ads, 5aosinte.adb, 5aosinte.ads,
	5asystem.ads, 5ataprop.adb, 5atasinf.ads, 5ataspri.ads,
	5atpopsp.adb, 5avxwork.ads, 5bosinte.adb, 5bosinte.ads,
	5bsystem.ads, 5cosinte.ads, 5esystem.ads, 5fintman.adb,
	5fosinte.ads, 5fsystem.ads, 5ftaprop.adb, 5ftasinf.ads,
	5ginterr.adb, 5gintman.adb, 5gmastop.adb, 5gosinte.ads,
	5gproinf.ads, 5gsystem.ads, 5gtaprop.adb, 5gtasinf.ads,
	5gtpgetc.adb, 5hosinte.adb, 5hosinte.ads, 5hsystem.ads,
	5htaprop.adb, 5htaspri.ads, 5htraceb.adb, 5iosinte.adb,
	5itaprop.adb, 5itaspri.ads, 5ksystem.ads, 5kvxwork.ads,
	5lintman.adb, 5lml-tgt.adb, 5losinte.ads, 5lsystem.ads,
	5mvxwork.ads, 5ninmaop.adb, 5nintman.adb, 5nosinte.ads,
	5ntaprop.adb, 5ntaspri.ads, 5ointerr.adb, 5omastop.adb,
	5oosinte.adb, 5oosinte.ads, 5oosprim.adb, 5oparame.adb,
	5osystem.ads, 5otaprop.adb, 5otaspri.ads, 5posinte.ads,
	5posprim.adb, 5pvxwork.ads, 5sintman.adb, 5sosinte.adb,
	5sosinte.ads, 5ssystem.ads, 5staprop.adb, 5stasinf.ads,
	5staspri.ads, 5svxwork.ads, 5tosinte.ads, 5vasthan.adb,
	5vinmaop.adb, 5vinterr.adb, 5vintman.adb, 5vintman.ads,
	5vmastop.adb, 5vosinte.adb, 5vosinte.ads, 5vosprim.adb,
	5vsystem.ads, 5vtaprop.adb, 5vtaspri.ads, 5vtpopde.adb,
	5vtpopde.ads, 5wgloloc.adb, 5wintman.adb, 5wmemory.adb,
	5wosprim.adb, 5wsystem.ads, 5wtaprop.adb, 5wtaspri.ads,
	5ysystem.ads, 5zinterr.adb, 5zintman.adb, 5zosinte.adb,
	5zosinte.ads, 5zosprim.adb, 5zsystem.ads, 5ztaprop.adb,
	6vcpp.adb, 6vcstrea.adb, 6vinterf.ads, 7sinmaop.adb,
	7sintman.adb, 7sosinte.adb, 7sosprim.adb, 7staprop.adb,
	7staspri.ads, 7stpopsp.adb, 7straceb.adb, 9drpc.adb,
	a-caldel.adb, a-caldel.ads, a-charac.ads, a-colien.ads,
	a-comlin.adb, adaint.c, adaint.h, ada-tree.def,
	a-diocst.adb, a-diocst.ads, a-direio.adb, a-except.adb,
	a-except.ads, a-excpol.adb, a-exctra.adb, a-exctra.ads,
	a-filico.adb, a-interr.adb, a-intsig.adb, a-intsig.ads,
	ali.adb, ali.ads, ali-util.adb, ali-util.ads,
	a-ngcefu.adb, a-ngcoty.adb, a-ngelfu.adb, a-nudira.adb,
	a-nudira.ads, a-nuflra.adb, a-nuflra.ads, a-reatim.adb,
	a-reatim.ads, a-retide.ads, a-sequio.adb, a-siocst.adb,
	a-siocst.ads, a-ssicst.adb, a-ssicst.ads, a-strbou.adb,
	a-strbou.ads, a-strfix.adb, a-strmap.adb, a-strsea.ads,
	a-strunb.adb, a-strunb.ads, a-ststio.adb, a-stunau.adb,
	a-stunau.ads, a-stwibo.adb, a-stwibo.ads, a-stwifi.adb,
	a-stwima.adb, a-stwiun.adb, a-stwiun.ads, a-tags.adb,
	a-tags.ads, a-tasatt.adb, a-taside.adb, a-teioed.adb,
	a-textio.adb, a-textio.ads, a-tienau.adb, a-tifiio.adb,
	a-tiflau.adb, a-tiflio.adb, a-tigeau.adb, a-tigeau.ads,
	a-tiinau.adb, a-timoau.adb, a-tiocst.adb, a-tiocst.ads,
	atree.adb, atree.ads, a-witeio.adb, a-witeio.ads,
	a-wtcstr.adb, a-wtcstr.ads, a-wtdeio.adb, a-wtedit.adb,
	a-wtenau.adb, a-wtflau.adb, a-wtinau.adb, a-wtmoau.adb,
	bcheck.adb, binde.adb, bindgen.adb, bindusg.adb,
	checks.adb, checks.ads, cio.c, comperr.adb,
	comperr.ads, csets.adb, cstand.adb, cstreams.c,
	debug_a.adb, debug_a.ads, debug.adb, decl.c,
	einfo.adb, einfo.ads, errout.adb, errout.ads,
	eval_fat.adb, eval_fat.ads, exp_aggr.adb, expander.adb,
	expander.ads, exp_attr.adb, exp_ch11.adb, exp_ch13.adb,
	exp_ch2.adb, exp_ch3.adb, exp_ch3.ads, exp_ch4.adb,
	exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_ch7.ads,
	exp_ch8.adb, exp_ch9.adb, exp_code.adb, exp_dbug.adb,
	exp_dbug.ads, exp_disp.adb, exp_dist.adb, expect.c,
	exp_fixd.adb, exp_imgv.adb, exp_intr.adb, exp_pakd.adb,
	exp_prag.adb, exp_strm.adb, exp_strm.ads, exp_tss.adb,
	exp_tss.ads, exp_util.adb, exp_util.ads, exp_vfpt.adb,
	fe.h, fmap.adb, fmap.ads, fname.adb,
	fname.ads, fname-uf.adb, fname-uf.ads, freeze.adb,
	freeze.ads, frontend.adb, g-awk.adb, g-awk.ads,
	g-busora.adb, g-busora.ads, g-busorg.adb, g-busorg.ads,
	g-casuti.adb, g-casuti.ads, g-catiio.adb, g-catiio.ads,
	g-cgi.adb, g-cgi.ads, g-cgicoo.adb, g-cgicoo.ads,
	g-cgideb.adb, g-cgideb.ads, g-comlin.adb, g-comlin.ads,
	g-crc32.adb, g-crc32.ads, g-debpoo.adb, g-debpoo.ads,
	g-debuti.adb, g-debuti.ads, g-diopit.adb, g-diopit.ads,
	g-dirope.adb, g-dirope.ads, g-dyntab.adb, g-dyntab.ads,
	g-except.ads, g-exctra.adb, g-exctra.ads, g-expect.adb,
	g-expect.ads, g-hesora.adb, g-hesora.ads, g-hesorg.adb,
	g-hesorg.ads, g-htable.adb, g-htable.ads, gigi.h,
	g-io.adb, g-io.ads, g-io_aux.adb, g-io_aux.ads,
	g-locfil.adb, g-locfil.ads, g-md5.adb, g-md5.ads,
	gmem.c, gnat1drv.adb, gnatbind.adb, gnatchop.adb,
	gnatcmd.adb, gnatfind.adb, gnatkr.adb, gnatlbr.adb,
	gnatlink.adb, gnatls.adb, gnatmake.adb, gnatmem.adb,
	gnatname.adb, gnatprep.adb, gnatprep.ads, gnatpsta.adb,
	gnatxref.adb, g-os_lib.adb, g-os_lib.ads, g-regexp.adb,
	g-regexp.ads, g-regist.adb, g-regist.ads, g-regpat.adb,
	g-regpat.ads, g-soccon.ads, g-socket.adb, g-socket.ads,
	g-socthi.adb, g-socthi.ads, g-soliop.ads, g-souinf.ads,
	g-speche.adb, g-speche.ads, g-spipat.adb, g-spipat.ads,
	g-spitbo.adb, g-spitbo.ads, g-sptabo.ads, g-sptain.ads,
	g-sptavs.ads, g-table.adb, g-table.ads, g-tasloc.adb,
	g-tasloc.ads, g-thread.adb, g-thread.ads, g-traceb.adb,
	g-traceb.ads, g-trasym.adb, g-trasym.ads, hostparm.ads,
	i-c.ads, i-cobol.adb, i-cpp.adb, i-cstrea.ads,
	i-cstrin.adb, i-cstrin.ads, impunit.adb, init.c,
	inline.adb, interfac.ads, i-pacdec.ads, itypes.adb,
	itypes.ads, i-vxwork.ads, lang.opt, lang-specs.h,
	layout.adb, lib.adb, lib.ads, lib-list.adb,
	lib-load.adb, lib-load.ads, lib-sort.adb, lib-util.adb,
	lib-writ.adb, lib-writ.ads, lib-xref.adb, lib-xref.ads,
	link.c, live.adb, make.adb, make.ads,
	Makefile.adalib, Makefile.in, Make-lang.in, makeusg.adb,
	mdll.adb, mdll-fil.adb, mdll-fil.ads, mdll-utl.adb,
	mdll-utl.ads, memroot.adb, memroot.ads, memtrack.adb,
	misc.c, mkdir.c, mlib.adb, mlib.ads,
	mlib-fil.adb, mlib-fil.ads, mlib-prj.adb, mlib-prj.ads,
	mlib-tgt.adb, mlib-tgt.ads, mlib-utl.adb, mlib-utl.ads,
	namet.adb, namet.ads, namet.h, nlists.ads,
	nlists.h, nmake.adt, opt.adb, opt.ads,
	osint.adb, osint.ads, osint-b.adb, osint-c.adb,
	par.adb, par-ch10.adb, par-ch11.adb, par-ch2.adb,
	par-ch3.adb, par-ch4.adb, par-ch5.adb, par-ch6.adb,
	par-ch9.adb, par-endh.adb, par-labl.adb, par-load.adb,
	par-prag.adb, par-sync.adb, par-tchk.adb, par-util.adb,
	prj.adb, prj.ads, prj-attr.adb, prj-attr.ads,
	prj-com.adb, prj-com.ads, prj-dect.adb, prj-dect.ads,
	prj-env.adb, prj-env.ads, prj-ext.adb, prj-ext.ads,
	prj-makr.adb, prj-makr.ads, prj-nmsc.adb, prj-nmsc.ads,
	prj-pars.adb, prj-pars.ads, prj-part.adb, prj-part.ads,
	prj-pp.adb, prj-pp.ads, prj-proc.adb, prj-proc.ads,
	prj-strt.adb, prj-strt.ads, prj-tree.adb, prj-tree.ads,
	prj-util.adb, prj-util.ads, raise.c, raise.h,
	repinfo.adb, repinfo.h, restrict.adb, restrict.ads,
	rident.ads, rtsfind.adb, rtsfind.ads, s-addima.ads,
	s-arit64.adb, s-assert.adb, s-assert.ads, s-atacco.adb,
	s-atacco.ads, s-auxdec.adb, s-auxdec.ads, s-bitops.adb,
	scans.ads, scn.adb, scn.ads, s-crc32.adb,
	s-crc32.ads, s-direio.adb, sem.adb, sem.ads,
	sem_aggr.adb, sem_attr.adb, sem_attr.ads, sem_case.adb,
	sem_case.ads, sem_cat.adb, sem_cat.ads, sem_ch10.adb,
	sem_ch11.adb, sem_ch12.adb, sem_ch12.ads, sem_ch13.adb,
	sem_ch13.ads, sem_ch3.adb, sem_ch3.ads, sem_ch4.adb,
	sem_ch5.adb, sem_ch5.ads, sem_ch6.adb, sem_ch6.ads,
	sem_ch7.adb, sem_ch7.ads, sem_ch8.adb, sem_ch8.ads,
	sem_ch9.adb, sem_disp.adb, sem_disp.ads, sem_dist.adb,
	sem_elab.adb, sem_eval.adb, sem_eval.ads, sem_intr.adb,
	sem_maps.adb, sem_mech.adb, sem_prag.adb, sem_prag.ads,
	sem_res.adb, sem_res.ads, sem_type.adb, sem_type.ads,
	sem_util.adb, sem_util.ads, sem_warn.adb, s-errrep.adb,
	s-errrep.ads, s-exctab.adb, s-exctab.ads, s-exnint.ads,
	s-exnllf.ads, s-exnlli.ads, s-expint.ads, s-explli.ads,
	s-expuns.ads, s-fatflt.ads, s-fatgen.adb, s-fatgen.ads,
	s-fatlfl.ads, s-fatllf.ads, s-fatsfl.ads, s-fileio.adb,
	s-fileio.ads, s-finimp.adb, s-finimp.ads, s-finroo.adb,
	s-finroo.ads, sfn_scan.adb, s-gloloc.adb, s-gloloc.ads,
	s-imgdec.adb, s-imgenu.adb, s-imgrea.adb, s-imgwch.adb,
	sinfo.adb, sinfo.ads, s-inmaop.ads, sinput.adb,
	sinput.ads, sinput-d.adb, sinput-l.adb, sinput-l.ads,
	sinput-p.adb, sinput-p.ads, s-interr.adb, s-interr.ads,
	s-intman.ads, s-maccod.ads, s-mastop.adb, s-mastop.ads,
	s-memory.adb, s-memory.ads, snames.adb, snames.ads,
	snames.h, s-osprim.ads, s-parame.ads, s-parint.ads,
	s-pooloc.adb, s-pooloc.ads, s-poosiz.adb, sprint.adb,
	s-proinf.ads, s-scaval.ads, s-secsta.adb, s-secsta.ads,
	s-sequio.adb, s-shasto.adb, s-shasto.ads, s-soflin.ads,
	s-stache.adb, s-stache.ads, s-stalib.adb, s-stalib.ads,
	s-stoele.ads, s-stopoo.ads, s-stratt.adb, s-stratt.ads,
	s-strops.adb, s-strops.ads, s-taasde.adb, s-taasde.ads,
	s-tadeca.adb, s-tadeca.ads, s-tadert.adb, s-tadert.ads,
	s-taenca.adb, s-taenca.ads, s-taprob.adb, s-taprob.ads,
	s-taprop.ads, s-tarest.adb, s-tarest.ads, s-tasdeb.adb,
	s-tasdeb.ads, s-tasinf.adb, s-tasinf.ads, s-tasini.adb,
	s-tasini.ads, s-taskin.adb, s-taskin.ads, s-tasque.adb,
	s-tasque.ads, s-tasren.adb, s-tasren.ads, s-tasres.ads,
	s-tassta.adb, s-tassta.ads, s-tasuti.adb, s-tasuti.ads,
	s-tataat.adb, s-tataat.ads, s-tpinop.adb, s-tpinop.ads,
	s-tpoben.adb, s-tpoben.ads, s-tpobop.adb, s-tpobop.ads,
	s-tposen.adb, s-tposen.ads, s-traceb.adb, s-traceb.ads,
	stringt.adb, stringt.ads, stringt.h, style.ads,
	stylesw.adb, stylesw.ads, s-unstyp.ads, s-vaflop.ads,
	s-valrea.adb, s-valuti.adb, s-vercon.adb, s-vmexta.adb,
	s-wchcnv.ads, s-wchcon.ads, s-widcha.adb, switch.adb,
	switch.ads, switch-b.adb, switch-c.adb, switch-m.adb,
	s-wwdcha.adb, s-wwdwch.adb, sysdep.c, system.ads,
	table.adb, table.ads, targparm.adb, targparm.ads,
	targtyps.c, tbuild.adb, tbuild.ads, tracebak.c,
	trans.c, tree_io.adb, treepr.adb, treeprs.adt,
	ttypes.ads, types.ads, types.h, uintp.adb,
	uintp.ads, uintp.h, uname.adb, urealp.adb,
	urealp.ads, urealp.h, usage.adb, utils2.c,
	utils.c, validsw.adb, validsw.ads, widechar.adb,
	xeinfo.adb, xnmake.adb, xref_lib.adb, xref_lib.ads,
	xr_tabls.adb, xr_tabls.ads, xtreeprs.adb, xsnames.adb,
	einfo.h, sinfo.h, treeprs.ads, nmake.ads, nmake.adb,
	gnatvsn.ads: Merge with ACT tree.

	* gnatvsn.adb: Rewritten in a simpler and more efficient way.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@72751 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 140 insertions, 49 deletions

diff --git a/gcc/ada/sem_util.ads b/gcc/ada/sem_util.ads
index f0f518c104c..925b5c4d468 100644
--- a/gcc/ada/sem_util.ads
+++ b/gcc/ada/sem_util.ads
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---          Copyright (C) 1992-2002, Free Software Foundation, Inc.         --
+--          Copyright (C) 1992-2003, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -50,7 +50,8 @@ package Sem_Util is
       Ent    : Entity_Id  := Empty;
       Typ    : Entity_Id  := Empty;
       Loc    : Source_Ptr := No_Location;
-      Rep    : Boolean    := True);
+      Rep    : Boolean    := True;
+      Warn   : Boolean    := False);
    --  N is a subexpression which will raise constraint error when evaluated
    --  at runtime. Msg is a message that explains the reason for raising the
    --  exception. The last character is ? if the message is always a warning,
@@ -67,27 +68,27 @@ package Sem_Util is
    --  normally references Etype (N), unless the Ent argument is given
    --  explicitly, in which case it is used instead. The type of the raise
    --  node that is built is normally Etype (N), but if the Typ parameter
-   --  is present, this is used instead.
+   --  is present, this is used instead. Warn is normally False. If it is
+   --  True then the message is treated as a warning even though it does
+   --  not end with a ? (this is used when the caller wants to parametrize
+   --  whether an error or warning is given.
 
    function Build_Actual_Subtype
-     (T    : Entity_Id;
-      N    : Node_Or_Entity_Id)
-      return Node_Id;
+     (T : Entity_Id;
+      N : Node_Or_Entity_Id) return Node_Id;
    --  Build an anonymous subtype for an entity or expression, using the
    --  bounds of the entity or the discriminants of the enclosing record.
    --  T is the type for which the actual subtype is required, and N is either
    --  a defining identifier, or any subexpression.
 
    function Build_Actual_Subtype_Of_Component
-     (T    : Entity_Id;
-      N    : Node_Id)
-      return Node_Id;
+     (T : Entity_Id;
+      N : Node_Id) return Node_Id;
    --  Determine whether a selected component has a type that depends on
    --  discriminants, and build actual subtype for it if so.
 
    function Build_Discriminal_Subtype_Of_Component
-     (T    : Entity_Id)
-      return Node_Id;
+     (T : Entity_Id) return Node_Id;
    --  Determine whether a record component has a type that depends on
    --  discriminants, and build actual subtype for it if so.
 
@@ -128,11 +129,13 @@ package Sem_Util is
      (N    : Node_Id;
       Msg  : String;
       Ent  : Entity_Id  := Empty;
-      Loc  : Source_Ptr := No_Location)
-      return Node_Id;
+      Loc  : Source_Ptr := No_Location;
+      Warn : Boolean    := False) return Node_Id;
    --  Subsidiary to Apply_Compile_Time_Constraint_Error and Checks routines.
    --  Does not modify any nodes, but generates a warning (or error) message.
-   --  For convenience, the function always returns its first argument.
+   --  For convenience, the function always returns its first argument. The
+   --  message is a warning if the message ends with ?, or we are operating
+   --  in Ada 83 mode, or if the Warn parameter is set to True.
 
    procedure Conditional_Delay (New_Ent, Old_Ent : Entity_Id);
    --  Sets the Has_Delayed_Freeze flag of New if the Delayed_Freeze flag
@@ -164,10 +167,14 @@ package Sem_Util is
    --  then the defining entity is obtained from the defining unit name
    --  ignoring any child unit prefixes.
 
-   function Denotes_Discriminant (N : Node_Id) return Boolean;
-   --  Returns True if node N is an N_Identifier node for a discriminant.
-   --  Returns False for any other kind of node, or for an N_Identifier
-   --  node that does not denote a discriminant.
+   function Denotes_Discriminant
+     (N               : Node_Id;
+      Check_Protected : Boolean := False) return Boolean;
+   --  Returns True if node N is an Entity_Name node for a discriminant.
+   --  If the flag Check_Protected is true, function also returns true
+   --  when N denotes the discriminal of the discriminant of a protected
+   --  type. This is necessary to disable some optimizations on private
+   --  components of protected types.
 
    function Depends_On_Discriminant (N : Node_Id) return Boolean;
    --  Returns True if N denotes a discriminant or if N is a range, a subtype
@@ -176,15 +183,13 @@ package Sem_Util is
 
    function Designate_Same_Unit
      (Name1 : Node_Id;
-      Name2 : Node_Id)
-      return  Boolean;
+      Name2 : Node_Id) return  Boolean;
    --  Return true if Name1 and Name2 designate the same unit name;
    --  each of these names is supposed to be a selected component name,
    --  an expanded name, a defining program unit name or an identifier
 
    function Enclosing_Generic_Body
-     (E    : Entity_Id)
-      return Node_Id;
+     (E : Entity_Id) return Node_Id;
    --  Returns the Node_Id associated with the innermost enclosing
    --  generic body, if any. If none, then returns Empty.
 
@@ -212,10 +217,15 @@ package Sem_Util is
    --  Note: Enter_Name is not used for overloadable entities, instead
    --  these are entered using Sem_Ch6.Enter_Overloadable_Entity.
 
+   procedure Explain_Limited_Type (T : Entity_Id; N : Node_Id);
+   --  This procedure is called after issuing a message complaining
+   --  about an inappropriate use of limited type T. If useful, it
+   --  adds additional continuation lines to the message explaining
+   --  why type T is limited. Messages are placed at node N.
+
    function Find_Corresponding_Discriminant
      (Id   : Node_Id;
-      Typ  : Entity_Id)
-      return Entity_Id;
+      Typ  : Entity_Id) return Entity_Id;
    --  Because discriminants may have different names in a generic unit
    --  and in an instance, they are resolved positionally when possible.
    --  A reference to a discriminant carries the discriminant that it
@@ -238,6 +248,11 @@ package Sem_Util is
    --  Generates the string literal corresponding to the E's full qualified
    --  name in upper case. An ASCII.NUL is appended as the last character
 
+   function Find_Static_Alternative (N : Node_Id) return Node_Id;
+   --  N is a case statement whose expression is a compile-time value.
+   --  Determine the alternative chosen, so that the code of non-selected
+   --  alternatives, and the warnings that may apply to them, are removed.
+
    procedure Gather_Components
      (Typ           : Entity_Id;
       Comp_List     : Node_Id;
@@ -310,10 +325,9 @@ package Sem_Util is
    --  may be set to Error if there was an earlier error in the range.
 
    function Get_Enum_Lit_From_Pos
-     (T    : Entity_Id;
-      Pos  : Uint;
-      Loc  : Source_Ptr)
-      return Entity_Id;
+     (T   : Entity_Id;
+      Pos : Uint;
+      Loc : Source_Ptr) return Entity_Id;
    --  This function obtains the E_Enumeration_Literal entity for the
    --  specified value from the enumneration type or subtype T. The
    --  second argument is the Pos value, which is assumed to be in range.
@@ -370,6 +384,9 @@ package Sem_Util is
    --  Returns True if current scope is within the visible part of a package
    --  instance, where several additional semantic checks apply.
 
+   function In_Package_Body return Boolean;
+   --  Returns True if current scope is within a package body
+
    function In_Subprogram_Or_Concurrent_Unit return Boolean;
    --  Determines if the current scope is within a subprogram compilation
    --  unit (inside a subprogram declaration, subprogram body, or generic
@@ -382,6 +399,12 @@ package Sem_Util is
    --  package specification. The package must be on the scope stack, and the
    --  corresponding private part must not.
 
+   procedure Insert_Explicit_Dereference (N : Node_Id);
+   --  In a context that requires a composite or subprogram type and
+   --  where a prefix is an access type, rewrite the access type node
+   --  N (which is the prefix, e.g. of an indexed component) as an
+   --  explicit dereference.
+
    function Is_AAMP_Float (E : Entity_Id) return Boolean;
    --  Defined for all type entities. Returns True only for the base type
    --  of float types with AAMP format. The particular format is determined
@@ -391,15 +414,6 @@ package Sem_Util is
    --  the dependency of Einfo on Targparm which would be required for a
    --  synthesized attribute.
 
-   function Is_Dependent_Component_Of_Mutable_Object
-     (Object : Node_Id)
-      return   Boolean;
-   --  Returns True if Object is the name of a subcomponent that
-   --  depends on discriminants of a variable whose nominal subtype
-   --  is unconstrained and not indefinite, and the variable is
-   --  not aliased.  Otherwise returns False.  The nodes passed
-   --  to this function are assumed to denote objects.
-
    function Is_Actual_Parameter (N : Node_Id) return Boolean;
    --  Determines if N is an actual parameter in a subprogram call.
 
@@ -411,6 +425,20 @@ package Sem_Util is
    --  Determines if the given node denotes an atomic object in the sense
    --  of the legality checks described in RM C.6(12).
 
+   function Is_Dependent_Component_Of_Mutable_Object
+     (Object : Node_Id) return Boolean;
+   --  Returns True if Object is the name of a subcomponent that
+   --  depends on discriminants of a variable whose nominal subtype
+   --  is unconstrained and not indefinite, and the variable is
+   --  not aliased.  Otherwise returns False.  The nodes passed
+   --  to this function are assumed to denote objects.
+
+   function Is_Dereferenced (N : Node_Id) return Boolean;
+   --  N is a subexpression node of an access type. This function returns
+   --  true if N appears as the prefix of a node that does a dereference
+   --  of the access value (selected/indexed component, explicit dereference
+   --  or a slice), and false otherwise.
+
    function Is_False (U : Uint) return Boolean;
    --  The argument is a Uint value which is the Boolean'Pos value of a
    --  Boolean operand (i.e. is either 0 for False, or 1 for True). This
@@ -424,12 +452,25 @@ package Sem_Util is
    --  Typ is a type entity. This function returns true if this type is
    --  fully initialized, meaning that an object of the type is fully
    --  initialized. Note that initialization resulting from the use of
-   --  pragma Normalized_Scalars does not count.
+   --  pragma Normalized_Scalars does not count. Note that this is only
+   --  used for the purpose of issuing warnings for objects that are
+   --  potentially referenced uninitialized. This means that the result
+   --  returned is not crucial, but probably should err on the side of
+   --  thinking things are fully initialized if it does not know.
 
    function Is_Inherited_Operation (E : Entity_Id) return Boolean;
    --  E is a subprogram. Return True is E is an implicit operation inherited
    --  by a derived type declarations.
 
+   function Is_Lvalue (N : Node_Id) return Boolean;
+   --  Determines if N could be an lvalue (e.g. an assignment left hand side).
+   --  This determination is conservative, it must never answer False if N is
+   --  an lvalue, but it can answer True when N is not an lvalue. An lvalue is
+   --  defined as any expression which appears in a context where a name is
+   --  required by the syntax, and the identity, rather than merely the value
+   --  of the node is needed (for example, the prefix of an attribute is in
+   --  this category).
+
    function Is_Library_Level_Entity (E : Entity_Id) return Boolean;
    --  A library-level declaration is one that is accessible from Standard,
    --  i.e. a library unit or an entity declared in a library package.
@@ -472,7 +513,7 @@ package Sem_Util is
    function Is_Selector_Name (N : Node_Id) return Boolean;
    --  Given an N_Identifier node N, determines if it is a Selector_Name.
    --  As described in Sinfo, Selector_Names are special because they
-   --  represent use of the N_Identifier node for a true identifier, when
+   --  represent use of the N_Identifier node for a true identifer, when
    --  normally such nodes represent a direct name.
 
    function Is_Statement (N : Node_Id) return Boolean;
@@ -501,7 +542,24 @@ package Sem_Util is
 
    function Is_Volatile_Object (N : Node_Id) return Boolean;
    --  Determines if the given node denotes an volatile object in the sense
-   --  of the legality checks described in RM C.6(12).
+   --  of the legality checks described in RM C.6(12). Note that the test
+   --  here is for something actually declared as volatile, not for an object
+   --  that gets treated as volatile (see Einfo.Treat_As_Volatile).
+
+   procedure Kill_Current_Values;
+   --  This procedure is called to clear all constant indications from all
+   --  entities in the current scope and in any parent scopes if the current
+   --  scope is a block or a pacakage (and that recursion continues to the
+   --  top scope that is not a block or a package). This is used when the
+   --  sequential flow-of-control assumption is violated (occurence of a
+   --  label, head of a loop, or start of an exception handler). The effect
+   --  of the call is to clear the Constant_Value field (but we do not need
+   --  to clear the Is_True_Constant flag, since that only gets reset if
+   --  there really is an assignment somewhere in the entity scope). This
+   --  procedure also calls Kill_All_Checks, since this is a special case
+   --  of needing to forget saved values. This procedure also clears any
+   --  Is_Known_Non_Null flags in variables, constants or parameters
+   --  since these are also not known to be valid.
 
    procedure Kill_Size_Check_Code (E : Entity_Id);
    --  Called when an address clause or pragma Import is applied to an
@@ -516,8 +574,7 @@ package Sem_Util is
       Related_Id   : Entity_Id;
       Suffix       : Character;
       Suffix_Index : Nat := 0;
-      Prefix       : Character := ' ')
-      return         Entity_Id;
+      Prefix       : Character := ' ') return Entity_Id;
    --  This function creates an N_Defining_Identifier node for an internal
    --  created entity, such as an implicit type or subtype, or a record
    --  initialization procedure. The entity name is constructed with a call
@@ -531,8 +588,7 @@ package Sem_Util is
      (Kind       : Entity_Kind;
       Scope_Id   : Entity_Id;
       Sloc_Value : Source_Ptr;
-      Id_Char    : Character)
-      return       Entity_Id;
+      Id_Char    : Character) return Entity_Id;
    --  This function is similar to New_External_Entity, except that the
    --  name is constructed by New_Internal_Name (Id_Char). This is used
    --  when the resulting entity does not have to be referenced as a
@@ -557,7 +613,7 @@ package Sem_Util is
       Report  : Boolean;
       Success : out Boolean);
    --  Reorders lists of actuals according to names of formals, value returned
-   --  in Success indicates success of reordering. For more details, see body.
+   --  in Success indicates sucess of reordering. For more details, see body.
    --  Errors are reported only if Report is set to True.
 
    procedure Note_Possible_Modification (N : Node_Id);
@@ -596,6 +652,26 @@ package Sem_Util is
    --  S is a possibly signed syntactically valid real literal. The result
    --  returned is an N_Real_Literal node representing the literal value.
 
+   function Rep_To_Pos_Flag (E : Entity_Id; Loc : Source_Ptr) return Node_Id;
+   --  This is used to construct the second argument in a call to Rep_To_Pos
+   --  which is Standard_True if range checks are enabled (E is an entity to
+   --  which the Range_Checks_Suppressed test is applied), and Standard_False
+   --  if range checks are suppressed. Loc is the location for the node that
+   --  is returned (which is a New_Occurrence of the appropriate entity).
+   --
+   --  Note: one might think that it would be fine to always use True and
+   --  to ignore the suppress in this case, but it is generally better to
+   --  believe a request to suppress exceptions if possible, and further
+   --  more there is at least one case in the generated code (the code for
+   --  array assignment in a loop) that depends on this suppression.
+
+   procedure Require_Entity (N : Node_Id);
+   --  N is a node which should have an entity value if it is an entity name.
+   --  If not, then check if there were previous errors. If so, just fill
+   --  in with Any_Id and ignore. Otherwise signal a program error exception.
+   --  This is used as a defense mechanism against ill-formed trees caused by
+   --  previous errors (particularly in -gnatq mode).
+
    function Requires_Transient_Scope (Id : Entity_Id) return Boolean;
    --  E is a type entity. The result is True when temporaries of this
    --  type need to be wrapped in a transient scope to be reclaimed
@@ -606,6 +682,18 @@ package Sem_Util is
    procedure Reset_Analyzed_Flags (N : Node_Id);
    --  Reset the Analyzed flags in all nodes of the tree whose root is N
 
+   function Safe_To_Capture_Value
+     (N    : Node_Id;
+      Ent  : Entity_Id)
+      return Boolean;
+   --  The caller is interested in capturing a value (either the current
+   --  value, or an indication that the value is non-null) for the given
+   --  entity Ent. This value can only be captured if sequential execution
+   --  semantics can be properly guaranteed so that a subsequent reference
+   --  will indeed be sure that this current value indication is correct.
+   --  The node N is the construct which resulted in the possible capture
+   --  of the value (this is used to check if we are in a conditional).
+
    function Same_Name (N1, N2 : Node_Id) return Boolean;
    --  Determine if two (possibly expanded) names are the same name
 
@@ -693,12 +781,15 @@ package Sem_Util is
    function Unit_Declaration_Node (Unit_Id : Entity_Id) return Node_Id;
    --  Unit_Id is the simple name of a program unit, this function returns
    --  the corresponding xxx_Declaration node for the entity. Also applies
-   --  to the body entities for subprograms in tasks, in which case it
-   --  returns the subprogram or task body node for it. The unit may be
-   --  a child unit with any number of ancestors.
+   --  to the body entities for subprograms, tasks and protected units, in
+   --  which case it returns the subprogram, task or protected body node
+   --  for it. The unit may be a child unit with any number of ancestors.
+
+   function Universal_Interpretation (Opnd : Node_Id) return Entity_Id;
+   --  Yields universal_Integer or Universal_Real if this is a candidate.
 
    function Within_Init_Proc return Boolean;
-   --  Determines if Current_Scope is within an Init_Proc
+   --  Determines if Current_Scope is within an init proc
 
    procedure Wrong_Type (Expr : Node_Id; Expected_Type : Entity_Id);
    --  Output error message for incorrectly typed expression. Expr is the