[LLVMdev] piping into lli broken on darwin

[Jack Howarth]

On Wed, Oct 31, 2012 at 04:43:42PM -0700, Eli Friedman wrote:
> On Wed, Oct 31, 2012 at 4:33 PM, Jack Howarth <howarth at bromo.med.uc.edu> wrote:
> > On Wed, Oct 31, 2012 at 03:53:50PM -0700, Eli Friedman wrote:
> >> On Wed, Oct 31, 2012 at 8:43 AM, Jack Howarth <howarth at bromo.med.uc.edu> wrote:
> >> >   While testing llvm/polly svn on x86_64-apple-darwin10/11/12, I noticed that three darwin
> >> > specific polly-test regressions exist. At least part of these failures appear to be due
> >> > to lli on darwin not accepting piped input such that the test...
> >> >
> >> > opt -load /sw/src/fink.build/llvm32-3.2-0/llvm-3.2/build/lib/LLVMPolly.so
> >> > -basicaa -polly-prepare -polly-region-simplify -O3
> >> > /sw/src/fink.build/llvm32-3.2-0/llvm-3.2/tools/polly/test/CodeGen/single_do_loop_int_max_iterations.ll
> >> > | lli
> >> >
> >> > produces the error...
> >> >
> >> > LLVM ERROR: Could not resolve external global address: stdout
> >>
> >> This error means you're generating a reference to a symbol named
> >> stdout, which does not exist on OS X.  Why do you think this is a bug
> >> in lli?
> >
> > Eli,
> >    What about the output that I see from bugpoint...
> >
> > http://llvm.org/bugs/show_bug.cgi?id=14142#c4
> >
> > which seems to suggest that the actual problem is an alignment issue.
> >
> > ugpoint-test-program.bc.llc.s.gcc.exe -lm -O2
> > bugpoint-test-program.bc:4:Alignment too large: 15. assumed.
> > bugpoint-test-program.bc:5:Unknown pseudo-op: .type
> > bugpoint-test-program.bc:5:Rest of line ignored. 1st junk character valued 115
> 
> This is a bugpoint issue; try passing "-gcc=clang" to bugpoint.
> 
> -Eli

Eli,
   I still get...

% bugpoint --run-custom --exec-command=lli -gcc=clang tempfile
Read input file      : 'tempfile'
*** All input ok
Initializing execution environment: Found command in: /sw/opt/llvm-3.2/bin/lli
Running the code generator to test for a crash: 
Generating reference output from raw program: <llc><gcc>
Error running tool:
  /sw/opt/llvm-3.2/bin/clang -x assembler bugpoint-test-program.bc.llc.s -x none -o bugpoint-test-program.bc.llc.s.gcc.exe -lm -O2
bugpoint-test-program.bc.llc.s:5:2: error: unknown directive
        .type   single_do_loop_int_max_iterations, at function
        ^
bugpoint-test-program.bc.llc.s:14:2: error: unknown directive
        .size   single_do_loop_int_max_iterations, .Ltmp0-single_do_loop_int_max_iterations
        ^
which was the other half for the gnutls fix.
         Jack