Hongbin Zheng via llvm-dev
2016-Aug-19 17:24 UTC
[llvm-dev] Stop bugpoint from removing operand of metadata.
Hi,
I am trying to use bugpoint to reduce testcase. And bugpoint try to reduce
the number of operands for metadata, and this generate corrupted metadata:
*** Attempting to remove named metadata: Checking for crash with only these
named metadata nodes: llvm.dbg.cu llvm.module.flags llvm.ident: <crash>
Checking for crash with only these named metadata nodes: llvm.module.flags
llvm.ident: <crash>
Checking for crash with only these named metadata nodes: llvm.ident:
Checking for crash with only these named metadata nodes: llvm.module.flags:
<crash>
Checking for crash with only 3 named metadata operands: <crash>
Checking for crash with only 2 named metadata operands: All DICompileUnits
must be listed in llvm.dbg.cu
LLVM ERROR: Broken module found, compilation aborted!
This crash bugpoint itself. Is there away to prevent bugpoint from doing
this rather than changing the source code of bugpoint?
I tried to run a "bugpoint --help-hidden" and get the following
options
related to metadata:
-lowertypetests - Lower type
metadata
-disable-namedmd-remove - Do not remove
global named metadata
-enable-import-metadata - Enable import
metadata like 'thinlto_src_module'
-enable-noalias-to-md-conversion - Convert
noalias attributes to metadata during inlining.
-lto-strip-invalid-debug-info - Strip invalid
debug info metadata during LTO instead of aborting.
And I don't think these help.
Any suggestion?
Thanks
Hongbin
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Mehdi Amini via llvm-dev
2016-Aug-19 17:32 UTC
[llvm-dev] Stop bugpoint from removing operand of metadata.
Hi,> On Aug 19, 2016, at 10:24 AM, Hongbin Zheng via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Hi, > > I am trying to use bugpoint to reduce testcase. And bugpoint try to reduce the number of operands for metadata, and this generate corrupted metadata: > > *** Attempting to remove named metadata: Checking for crash with only these named metadata nodes: llvm.dbg.cu <http://llvm.dbg.cu/> llvm.module.flags llvm.ident: <crash> > Checking for crash with only these named metadata nodes: llvm.module.flags llvm.ident: <crash> > Checking for crash with only these named metadata nodes: llvm.ident: > Checking for crash with only these named metadata nodes: llvm.module.flags: <crash> > Checking for crash with only 3 named metadata operands: <crash> > Checking for crash with only 2 named metadata operands: All DICompileUnits must be listed in llvm.dbg.cu <http://llvm.dbg.cu/> > LLVM ERROR: Broken module found, compilation aborted!I had the same issue, and have some local patches to help with this. Have you tried the -disable-namedmd-remove option? Also, at this point where bug point crashes, it should already have dumped a module. — Mehdi> > > This crash bugpoint itself. Is there away to prevent bugpoint from doing this rather than changing the source code of bugpoint? > > I tried to run a "bugpoint --help-hidden" and get the following options related to metadata: > -lowertypetests - Lower type metadata > -disable-namedmd-remove - Do not remove global named metadata > -enable-import-metadata - Enable import metadata like 'thinlto_src_module' > -enable-noalias-to-md-conversion - Convert noalias attributes to metadata during inlining. > -lto-strip-invalid-debug-info - Strip invalid debug info metadata during LTO instead of aborting. > > And I don't think these help. > > Any suggestion? > > Thanks > Hongbin > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160819/356b4636/attachment.html>
Hongbin Zheng via llvm-dev
2016-Aug-19 17:38 UTC
[llvm-dev] Stop bugpoint from removing operand of metadata.
On Fri, Aug 19, 2016 at 10:32 AM, Mehdi Amini <mehdi.amini at apple.com> wrote:> Hi, > > > On Aug 19, 2016, at 10:24 AM, Hongbin Zheng via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > > Hi, > > I am trying to use bugpoint to reduce testcase. And bugpoint try to reduce > the number of operands for metadata, and this generate corrupted metadata: > > *** Attempting to remove named metadata: Checking for crash with only > these named metadata nodes: llvm.dbg.cu llvm.module.flags llvm.ident: > <crash> > Checking for crash with only these named metadata nodes: llvm.module.flags > llvm.ident: <crash> > Checking for crash with only these named metadata nodes: llvm.ident: > Checking for crash with only these named metadata nodes: > llvm.module.flags: <crash> > Checking for crash with only 3 named metadata operands: <crash> > Checking for crash with only 2 named metadata operands: All DICompileUnits > must be listed in llvm.dbg.cu > LLVM ERROR: Broken module found, compilation aborted! > > > I had the same issue, and have some local patches to help with this. > Have you tried the -disable-namedmd-remove option? >Yep, that contains too much metadata :)> > Also, at this point where bug point crashes, it should already have dumped > a module. >Thanks for pointing this out. let me check> > — > Mehdi > > > > > This crash bugpoint itself. Is there away to prevent bugpoint from doing > this rather than changing the source code of bugpoint? > > I tried to run a "bugpoint --help-hidden" and get the following options > related to metadata: > -lowertypetests - Lower type > metadata > -disable-namedmd-remove - Do not remove > global named metadata > -enable-import-metadata - Enable import > metadata like 'thinlto_src_module' > -enable-noalias-to-md-conversion - Convert > noalias attributes to metadata during inlining. > -lto-strip-invalid-debug-info - Strip invalid > debug info metadata during LTO instead of aborting. > > And I don't think these help. > > Any suggestion? > > Thanks > Hongbin > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev > > >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160819/f7c460fb/attachment.html>