[PATCH] D70378: [LLD][COFF] Cover usage of LLD as a library
ayrivera added inline comments.
Comment at: lld/ELF/Driver.cpp:895
const char *argv[] = {config->progName.data(), opt.data()};
+ cl::ResetAllOptionOccurrences();
if (cl::ParseCommandLineOptions(2, argv, "", &os))
Hi,
I built locally lld and came across an issue. The ELF driver isn't recognizing
multiple -mllvm options. It only process the last -mllvm option that was
entered in the command line. For example, I can add -mllvm -print-after-all
-debug-pass=Arguments and it only prints the information from
-debug-pass=Arguments, and not the IR and the debug data. If I swap the order,
then the IR is printed and not the debug information.
I noticed that this change set added a call to cl:ResetAllOptionOccurrences()
(line 895) inside parseClangOption. The function parseClangOption is called
inside the loop that process the -mllvm options. If I comment this line, then
everything works correctly and I can pass multiple -mllvm options through the
command.
Is this an intended behavior or an actual issue? Thanks for your time.
Repository:
rG LLVM Github Monorepo
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[PATCH] D70378: [LLD][COFF] Cover usage of LLD as a library
ayrivera added inline comments.
Comment at: lld/ELF/Driver.cpp:895
const char *argv[] = {config->progName.data(), opt.data()};
+ cl::ResetAllOptionOccurrences();
if (cl::ParseCommandLineOptions(2, argv, "", &os))
MaskRay wrote:
> ayrivera wrote:
> > Hi,
> >
> > I built locally lld and came across an issue. The ELF driver isn't
> > recognizing multiple -mllvm options. It only process the last -mllvm option
> > that was entered in the command line. For example, I can add -mllvm
> > -print-after-all -debug-pass=Arguments and it only prints the information
> > from -debug-pass=Arguments, and not the IR and the debug data. If I swap
> > the order, then the IR is printed and not the debug information.
> >
> > I noticed that this change set added a call to
> > cl:ResetAllOptionOccurrences() (line 895) inside parseClangOption. The
> > function parseClangOption is called inside the loop that process the -mllvm
> > options. If I comment this line, then everything works correctly and I can
> > pass multiple -mllvm options through the command.
> >
> > Is this an intended behavior or an actual issue? Thanks for your time.
> Hi,
>
> > For example, I can add -mllvm -print-after-all -debug-pass=Arguments
>
> You need two -mllvm, i.e. `-mllvm -print-after-all -mllvm
> -debug-pass=Arguments`. And with the option, I see the print-after-all dump.
Hi,
> You need two -mllvm, i.e. -mllvm -print-after-all -mllvm
> -debug-pass=Arguments. And with the option, I see the print-after-all dump.
Thanks for the quick reply. Sorry, this is a typo. I'm using both -mllvm and
still got the issue.
Repository:
rG LLVM Github Monorepo
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[PATCH] D70378: [LLD][COFF] Cover usage of LLD as a library
ayrivera added inline comments.
Comment at: lld/ELF/Driver.cpp:895
const char *argv[] = {config->progName.data(), opt.data()};
+ cl::ResetAllOptionOccurrences();
if (cl::ParseCommandLineOptions(2, argv, "", &os))
aganea wrote:
> ayrivera wrote:
> > MaskRay wrote:
> > > ayrivera wrote:
> > > > Hi,
> > > >
> > > > I built locally lld and came across an issue. The ELF driver isn't
> > > > recognizing multiple -mllvm options. It only process the last -mllvm
> > > > option that was entered in the command line. For example, I can add
> > > > -mllvm -print-after-all -debug-pass=Arguments and it only prints the
> > > > information from -debug-pass=Arguments, and not the IR and the debug
> > > > data. If I swap the order, then the IR is printed and not the debug
> > > > information.
> > > >
> > > > I noticed that this change set added a call to
> > > > cl:ResetAllOptionOccurrences() (line 895) inside parseClangOption. The
> > > > function parseClangOption is called inside the loop that process the
> > > > -mllvm options. If I comment this line, then everything works correctly
> > > > and I can pass multiple -mllvm options through the command.
> > > >
> > > > Is this an intended behavior or an actual issue? Thanks for your time.
> > > Hi,
> > >
> > > > For example, I can add -mllvm -print-after-all -debug-pass=Arguments
> > >
> > > You need two -mllvm, i.e. `-mllvm -print-after-all -mllvm
> > > -debug-pass=Arguments`. And with the option, I see the print-after-all
> > > dump.
> > Hi,
> >
> >
> > > You need two -mllvm, i.e. -mllvm -print-after-all -mllvm
> > > -debug-pass=Arguments. And with the option, I see the print-after-all
> > > dump.
> >
> >
> > Thanks for the quick reply. Sorry, this is a typo. I'm using both -mllvm
> > and still got the issue.
> > Is this an intended behavior or an actual issue?
> At first sight, this is an actual issue. Normally,
> `cl::ResetAllOptionOccurrences()` should be called only once per compiler or
> linker instance, to reset the internal counters for the `cl::opt`s. I would
> move it somewhere at the begining of `readConfigs()`. Can you try that see if
> that solves your issue?
Hi @aganea ,
This patch https://reviews.llvm.org/D88461 , posted by @MaskRay , works. It
does what you suggested. Thanks for the quick reply.
Repository:
rG LLVM Github Monorepo
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