[lldb-dev] [Bug 23132] New: Encountered an `unhandled type tag` error on malformed `print` statement

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23132

            Bug ID: 23132
           Summary: Encountered an `unhandled type tag` error on malformed
                    `print` statement
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at cs.uiuc.edu
          Reporter: kevinushey at gmail.com
    Classification: Unclassified

Was testing out `lldb` in stepping through a simple mean function, and stumbled
into this:

Breakpoint 2: where = sourceCpp_57725.so`Rcpp::sugar::Mean<14, true,
Rcpp::Vector<14, Rcpp::PreserveStorage> >::get() const + 351 at mean.h:46,
address = 0x000000010cf7e79f
(lldb) c
Process 4169 resuming
Process 4169 stopped
* thread #1: tid = 0x70d5, 0x000000010cf7e79f
sourceCpp_57725.so`Rcpp::sugar::Mean<14, true, Rcpp::Vector<14,
Rcpp::PreserveStorage> >::get(this=<unavailable>) const + 351 at mean.h:46,
queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
    frame #0: 0x000000010cf7e79f sourceCpp_57725.so`Rcpp::sugar::Mean<14, true,
Rcpp::Vector<14, Rcpp::PreserveStorage> >::get(this=<unavailable>) const + 351
at mean.h:46
   43                  for (int i = 0; i < n; i++) {
   44                      t += input[i] - s;
   45                  }
-> 46                  s += t/n;
   47              }
   48              return (double)s ;
   49          }
(lldb) print s
error: portsrc.o {0x0000c21b}: unhandled type tag 0x0027 (DW_TAG_constant),
please file a bug and attach the file at the start of this error message
error: portsrc.o {0x0000dec0}: unhandled type tag 0x0027 (DW_TAG_constant),
please file a bug and attach the file at the start of this error message
error: portsrc.o {0x0000699d}: unhandled type tag 0x0027 (DW_TAG_constant),
please file a bug and attach the file at the start of this error message
error: warning: Stopped in a C++ method, but 'this' isn't available; pretending
we are in a generic context
error: use of undeclared identifier 's'
error: 1 errors parsing expression

This is with git commit `1fe2076d4c88fcf374a1ce8f5486c340cb61a304`; `lldb` was
built from sources using

    xcodebuild -configuration Release -target lldb-tool

Thanks,
Kevin

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/lldb-dev/attachments/20150406/73485adc/attachment.html>