Remove -check-exit-code from bugpoint. This is subsumed by -append-exit-code.

Note that -check-exit-code was on by default while -append-exit-code is not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58221 91177308-0d34-0410-b5e6-96231b3b80d8

docs/Bugpoint.html

@@ -211,11 +211,6 @@ non-obvious ways.  Here are some hints and tips:<p>
     you might try <tt>llvm-link -v</tt> on the same set of input files. If
     that also crashes, you may be experiencing a linker bug.
 
-<li>If your program is <b>supposed</b> to crash, <tt>bugpoint</tt> will be
-    confused. One way to deal with this is to cause bugpoint to ignore the exit
-    code from your program, by giving it the <tt>-check-exit-code=false</tt>
-    option.
-
 <li><tt>bugpoint</tt> is useful for proactively finding bugs in LLVM. 
     Invoking <tt>bugpoint</tt> with the <tt>-find-bugs</tt> option will cause
     the list of specified optimizations to be randomized and applied to the 

docs/CommandGuide/bugpoint.pod

@@ -29,6 +29,11 @@ Load the dynamic shared object F<library> into the test program whenever it is
 run.  This is useful if you are debugging programs which depend on non-LLVM
 libraries (such as the X or curses libraries) to run.
 
+=item B<--append-exit-code>=I<{true,false}>
+
+Append the test programs exit code to the output file so that a change in exit
+code is considered a test failure. Defaults to false.
+
 =item B<--args> I<program args>
 
 Pass all arguments specified after -args to the test program whenever it runs.
@@ -52,11 +57,6 @@ The "--" right after the B<--tool-args> option tells B<bugpoint> to consider any
 options starting with C<-> to be part of the B<--tool-args> option, not as
 options to B<bugpoint> itself. (See B<--args>, above.)
 
-=item B<--check-exit-code>=I<{true,false}>
-
-Assume a non-zero exit code or core dump from the test program is a failure.
-Defaults to true.
-
 =item B<--disable-{dce,simplifycfg}>
 
 Do not run the specified passes to clean up and reduce the size of the test

tools/bugpoint/ExecutionDriver.cpp

@@ -54,11 +54,6 @@ namespace {
                             clEnumValEnd),
                  cl::init(AutoPick));
 
-  cl::opt<bool>
-  CheckProgramExitCode("check-exit-code",
-                   cl::desc("Assume nonzero exit code is failure (default on)"),
-                       cl::init(true));
-
   cl::opt<bool>
   AppendProgramExitCode("append-exit-code",
       cl::desc("Append the exit code to the output so it gets diff'd too"),
@@ -317,12 +312,6 @@ std::string BugDriver::executeProgramWithCBE(std::string OutputFile) {
   bool ProgramExitedNonzero;
   std::string outFN = executeProgram(OutputFile, "", "", cbe,
                                      &ProgramExitedNonzero);
-  if (ProgramExitedNonzero) {
-    std::cerr
-      << "Warning: While generating reference output, program exited with\n"
-      << "non-zero exit code. This will NOT be treated as a failure.\n";
-    CheckProgramExitCode = false;
-  }
   return outFN;
 }
 
@@ -384,14 +373,6 @@ bool BugDriver::diffProgram(const std::string &BitcodeFile,
   sys::Path Output(executeProgram("", BitcodeFile, SharedObject, 0,
                                       &ProgramExitedNonzero));
 
-  // If we're checking the program exit code, assume anything nonzero is bad.
-  if (CheckProgramExitCode && ProgramExitedNonzero) {
-    Output.eraseFromDisk();
-    if (RemoveBitcode)
-      sys::Path(BitcodeFile).eraseFromDisk();
-    return true;
-  }
-
   std::string Error;
   bool FilesDifferent = false;
   if (int Diff = DiffFilesWithTolerance(sys::Path(ReferenceOutputFile),