looks good, thanks for the adjustment! Best regards, Goetz.
> -----Original Message----- > From: Baesken, Matthias > Sent: Dienstag, 5. Februar 2019 17:56 > To: Lindenmaier, Goetz <goetz.lindenma...@sap.com>; David Holmes > <david.hol...@oracle.com>; 'hotspot-...@openjdk.java.net' <hotspot- > d...@openjdk.java.net>; 'magnus.ihse.bur...@oracle.com' > <magnus.ihse.bur...@oracle.com> > Cc: 'build-dev@openjdk.java.net' <build-dev@openjdk.java.net> > Subject: RE: RFR : 8218136: minor hotspot adjustments for xlclang++ from > xlc16 on AIX > > Hi Götz, new webrev : > > http://cr.openjdk.java.net/~mbaesken/webrevs/8218136.4/ > > > > The old xlc stuff is good to be removed. > > Could you please remove USE_XLC_PREFETCH_WRITE_BUILTIN > > altogether and replace its only use by USE_XLC_BUILTINS? > > > > Done . > > > Also, I think it makes sense to put > > #if __IBMCPP__ < 1000 > > #error "xlc < 10 not supported" > > #endif > > into the file. > > > > Probably we should even check for having at least xlc 12. > > I added a check for xlc 12. > Also slightly changed the check for AIX (_AIX macro) in > globalDefinitions_xlc.hpp . > > > > > > The demangle fix is kind of preliminary, but to get the compiler > > working it is acceptable to skip this code for now. > > > > There might be a fix for xlc16 in the future but so far we have to live > with it. > > > Best regards, Matthias > > > > > -----Original Message----- > > From: Lindenmaier, Goetz > > Sent: Dienstag, 5. Februar 2019 09:59 > > To: Baesken, Matthias <matthias.baes...@sap.com>; David Holmes > > <david.hol...@oracle.com>; 'hotspot-...@openjdk.java.net' <hotspot- > > d...@openjdk.java.net>; 'magnus.ihse.bur...@oracle.com' > > <magnus.ihse.bur...@oracle.com> > > Cc: 'build-dev@openjdk.java.net' <build-dev@openjdk.java.net> > > Subject: RE: RFR : 8218136: minor hotspot adjustments for xlclang++ from > > xlc16 on AIX > > > > Hi Matthias, > > > > The demangle fix is kind of preliminary, but to get the compiler > > working it is acceptable to skip this code for now. > > > > The old xlc stuff is good to be removed. > > Could you please remove USE_XLC_PREFETCH_WRITE_BUILTIN > > altogether and replace its only use by USE_XLC_BUILTINS? > > > > Also, I think it makes sense to put > > #if __IBMCPP__ < 1000 > > #error "xlc < 10 not supported" > > #endif > > into the file. > > > > Probably we should even check for having at least xlc 12. > > > > Best regards, > > Goetz. > > > > > -----Original Message----- > > > From: hotspot-dev <hotspot-dev-boun...@openjdk.java.net> On Behalf > > Of > > > Baesken, Matthias > > > Sent: Montag, 4. Februar 2019 12:36 > > > To: David Holmes <david.hol...@oracle.com>; 'hotspot- > > > d...@openjdk.java.net' <hotspot-...@openjdk.java.net>; > > > 'magnus.ihse.bur...@oracle.com' <magnus.ihse.bur...@oracle.com> > > > Cc: 'build-dev@openjdk.java.net' <build-dev@openjdk.java.net> > > > Subject: RE: RFR : 8218136: minor hotspot adjustments for xlclang++ from > > > xlc16 on AIX > > > > > > Hi David, I want to follow your suggestion 😊 . > > > I adjusted the comment , see globalDefinitions_xlc.hpp . > > > > > > Additionally I removed a strange ifdef handling pre-xlc10 versions > > > that are > > > not useful today any more for OpenJDK > > > ( we most likely cannot build jdk/jdk with xlc versions < 10). > > > > > > New webrev : > > > > > > http://cr.openjdk.java.net/~mbaesken/webrevs/8218136.2/ > > > > > > > > > Best regards, Matthias > > > > > > > > > > > > > -----Original Message----- > > > > From: David Holmes <david.hol...@oracle.com> > > > > Sent: Freitag, 1. Februar 2019 13:49 > > > > To: Baesken, Matthias <matthias.baes...@sap.com>; 'hotspot- > > > > d...@openjdk.java.net' <hotspot-...@openjdk.java.net>; > > > > 'magnus.ihse.bur...@oracle.com' <magnus.ihse.bur...@oracle.com> > > > > Cc: 'build-dev@openjdk.java.net' <build-dev@openjdk.java.net> > > > > Subject: Re: RFR : 8218136: minor hotspot adjustments for xlclang++ from > > > > xlc16 on AIX > > > > > > > > Hi Matthias, > > > > > > > > On 1/02/2019 10:36 pm, Baesken, Matthias wrote: > > > > > New webrev : > > > > > > > > > > http://cr.openjdk.java.net/~mbaesken/webrevs/8218136.1/ > > > > > > > > > > - adjusted globalDefinitions_xlc.hpp > > > > > > > > I don't think it makes sense to keep the comment which was obviously > > > > copied from the gcc file: > > > > > > > > // On Linux NULL is defined as a special type '__null'. Assigning > > > > __null to > > > > // integer variable will cause gcc warning. Use NULL_WORD in places > > > > where a > > > > // pointer is stored as integer value. On some platforms, > > > > sizeof(intptr_t) > > > > > // sizeof(void*), so here we want something which is integer type, > > > > but has the > > > > // same size as a pointer. > > > > > > > > Rather something like: > > > > > > > > // Some platform/tool-chain combinations can't assign NULL to an integer > > > > // type so we define NULL_WORD to use in those contexts. For xlc they > > > > // are the same. > > > > > > > > Thanks, > > > > David > > > > > > > > > > >
