Remove utils/llvm-native-gcc.

llvm-gcc had the ability to produce native .o files long before it died.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203791 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/llvm-native-gcc b/utils/llvm-native-gcc
deleted file mode 100755 (executable)
index 91a557c..0000000
--- a/utils/llvm-native-gcc
+++ /dev/null
@@ -1,249 +0,0 @@
-#!/usr/bin/perl
-# Wrapper around LLVM tools to generate a native .o from llvm-gcc using an
-# LLVM back-end (CBE by default).
-
-# set up defaults.
-$Verbose = 0;
-$SaveTemps = 1;
-$PreprocessOnly = 0;
-$CompileDontLink = 0;
-$Backend = 'cbe';
-chomp ($ProgramName = `basename $0`);
-
-sub boldprint {
-       print "\e[1m", @_, "\e[0m";
-}
-
-# process command-line options.
-# most of these are passed on to llvm-gcc.
-$GCCOptions = "";
-for ($i = 0; $i <= $#ARGV; ++$i) {     
-       if ($ARGV[$i] =~ /-mllvm-backend=([a-z0-9]*)/) {
-               $Backend = $1;
-               if ($ProgramName =~ /llvm-native-gcc/) {
-                       splice (@ARGV, $i, 1);
-                       --$i;
-               }
-       } elsif ($ARGV[$i] eq "-E") {
-               $PreprocessOnly = 1;
-       } elsif ($ARGV[$i] eq "-c") {
-               $GCCOptions .= " " . $ARGV[$i];
-               $CompileDontLink = 1;
-       } elsif ($ARGV[$i] eq "-v") {
-               $GCCOptions .= " " . $ARGV[$i];
-               $Verbose = 1;
-       } elsif ($ARGV[$i] eq "-o") {
-               $OutputFile = $ARGV[$i + 1];
-       } elsif ($ARGV[$i] eq "-save-temps") {
-               $GCCOptions .= " " . $ARGV[$i];
-               $SaveTemps = 1;
-       } elsif ($ARGV[$i] =~ /\.bc$/) {
-               push (@BytecodeFiles, $ARGV[$i]);
-       } elsif ($ARGV[$i] =~ /^-L/) {
-               $GCCOptions .= " " . $ARGV[$i];
-               push (@LibDirs, $ARGV[$i]);
-       } elsif ($ARGV[$i] =~ /^-l/) {
-               $GCCOptions .= " " . $ARGV[$i];
-               push (@Libs, $ARGV[$i]);
-       } elsif ($ARGV[$i] =~ /\.(c|cpp|cc|i|ii|C)$/) {
-               $LastCFile = $ARGV[$i];
-       }
-}
-
-sub GetDefaultOutputFileName {
-       my $DefaultOutputFileBase;
-
-       if ($ProgramName =~ /llvm-native-gcc/) {
-               $DefaultOutputFileBase = $LastCFile;
-       } elsif ($ProgramName =~ /native-build/) {
-               $DefaultOutputFileBase = $BytecodeFiles[0];
-       }
-
-       my $def = $DefaultOutputFileBase;
-
-       die "Can't figure out name of output file.\n"
-               unless $DefaultOutputFileBase
-                          && (($ProgramName !~ /native-build/)
-                                  || $#BytecodeFiles == 0);
-
-       print "Warning: defaulting output file name ",
-               "based on '$DefaultOutputFileBase'\n" if $Verbose;
-
-       if ($ProgramName =~ /llvm-native-gcc/) {
-               $def =~ s/\.(c|cpp|cc|i|ii|C)$/.o/;
-       } elsif ($ProgramName =~ /native-build/) {
-               $def =~ s/\.bc$/.$Backend/;
-               if ($CompileDontLink) {
-                       $def .= ".o";
-               }
-       }
-
-       return $def;
-}
-
-# run a command, optionally echoing, and quitting if it fails:
-sub run {
-       my $command = join(" ", @_);
-       print "$command\n" if $Verbose;
-       $command =~ s/\"/\\\"/g;
-       system $command and die "$0: $command failed";
-}
-
-sub LinkBytecodeFilesIntoTemporary {
-       my $FinalOutputFileName = shift @_;
-       my @BytecodeFiles = @_;
-
-       my $BCFiles = join (" ", @BytecodeFiles);
-       my $LinkedBCFile;
-       if ($SaveTemps) {
-               $LinkedBCFile = "${FinalOutputFileName}.llvm.bc";
-       } else {
-               $LinkedBCFile = "/tmp/nativebuild-$$.llvm.bc";
-       }
-       run "llvm-link -o $LinkedBCFile $BCFiles";
-       return $LinkedBCFile;
-}
-
-sub CompileBytecodeToNative {
-       my ($BCFile, $Backend, $OutputFile) = @_;
-
-       my $GeneratedCode;
-       if ($Backend eq 'cbe') {
-               if ($SaveTemps) {
-                       $GeneratedCode = "${OutputFile}.c";
-               } else {
-                       $GeneratedCode = "/tmp/nativebuild-$$.c";
-               }
-               run "llc -enable-correct-eh-support -march=c -f -o $GeneratedCode $BCFile";
-       } elsif ($Backend eq 'llc') {
-               if ($SaveTemps) {
-                       $GeneratedCode = "${OutputFile}.s";
-               } else {
-                       $GeneratedCode = "/tmp/nativebuild-$$.s";
-               }
-               run "llc -enable-correct-eh-support -f -o $GeneratedCode $BCFile";
-       }
-       my $LibDirs = join (" ", @LibDirs);
-       my $Libs = join (" ", @Libs);
-       run "gcc $GCCOptions $GeneratedCode -o $OutputFile $LibDirs $Libs";
-       run "rm $BCFile $GeneratedCode"
-               unless $SaveTemps;
-}
-
-sub CompileCToNative {
-       my ($LLVMGCCCommand, $Backend, $OutputFile) = @_;
-       run $LLVMGCCCommand;
-       if ($PreprocessOnly) {
-               return;
-       }
-       my $BCFile = "${OutputFile}.llvm.bc";
-       if ($CompileDontLink) {
-               run "mv ${OutputFile} $BCFile";
-       } else { # gccld messes with the output file name
-               run "mv ${OutputFile}.bc $BCFile";
-       }
-       my $GeneratedCode;
-       if ($Backend eq 'cbe') {
-               $GeneratedCode = "${OutputFile}.cbe.c";
-               run "llc -enable-correct-eh-support -march=c -f -o $GeneratedCode $BCFile";
-       } elsif ($Backend eq 'llc') {
-               $GeneratedCode = "${OutputFile}.llc.s";
-               run "llc -enable-correct-eh-support -f -o $GeneratedCode $BCFile";
-       }
-       my $NativeGCCOptions = "";
-       if ($CompileDontLink) {
-               $NativeGCCOptions = "-c";
-       }
-       run "gcc $NativeGCCOptions $GeneratedCode -o $OutputFile";
-       run "rm ${OutputFile}.llvm.bc $GeneratedCode"
-               unless $SaveTemps;
-}
-
-# guess the name of the output file, if -o was not specified.
-$OutputFile = GetDefaultOutputFileName () unless $OutputFile;
-print "Output file is $OutputFile\n" if $Verbose;
-# do all the dirty work:
-if ($ProgramName eq /native-build/) {
-       my $LinkedBCFile = LinkBytecodeFilesIntoTemporary (@BytecodeFiles);
-       CompileBytecodeToNative ($LinkedBCFile, $Backend, $OutputFile);
-} elsif ($ProgramName =~ /llvm-native-gcc/) {
-       # build the llvm-gcc command line.
-       $LLVMGCCCommand = join (" ", ("llvm-gcc", @ARGV));
-       CompileCToNative ($LLVMGCCCommand, $Backend, $OutputFile);
-}
-
-# we're done.
-exit 0;
-
-__END__
-
-=pod
-
-=head1 NAME
-
-llvm-native-gcc
-
-=head1 SYNOPSIS
-
-llvm-native-gcc [OPTIONS...] FILE
-
-native-build [OPTIONS...] FILE
-
-=head1 DESCRIPTION
-
-llvm-native-gcc is a wrapper around the LLVM command-line tools which generates
-a native object (.o) file by compiling FILE with llvm-gcc, and then running 
-an LLVM back-end (CBE by default) over the resulting bitcode, and then
-compiling the resulting code to a native object file.
-
-If called as "native-build", it compiles bitcode to native code, and takes
-different options.
-
-=head1 OPTIONS
-
-llvm-native-gcc takes the same options as llvm-gcc. All options
-except -mllvm-backend=... are passed on to llvm-gcc.
-
-=over 4
-
-=item -mllvm-backend=BACKEND
-
-Use BACKEND for native code generation. 
-
-=item -v
-
-Print command lines that llvm-native-gcc runs.
-
-=item -o FILE
-
-llvm-native-gcc tries to guess the name of the llvm-gcc output file by looking
-for this option in the command line. If it can't find it, it finds the last C
-or C++ source file named on the command line, and turns its suffix into .o. See
-BUGS.
-
-=item -save-temps
-
-Save temporary files used by llvm-native-gcc (and llvm-gcc, and gcc).
-
-=back
-
-=head1 BUGS
-
-llvm-native-gcc only handles the case where llvm-gcc compiles a single
-file per invocation.  llvm-native-gcc has weak command-line argument
-parsing and is a poor substitute for making gcc/gcc.c do this stuff.
-
-This manual page does not adequately document native-build mode.
-
-llvm-native-gcc is pretty gross because it represents the blind merging of two
-other scripts that predated it. It could use some code clean-up.
-
-=head1 SEE ALSO
-
-gcc(1)
-
-=head1 AUTHOR
-
-Brian R. Gaeke
-
-=cut