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57 lines
1.6 KiB
Perl
Executable File
57 lines
1.6 KiB
Perl
Executable File
#!/usr/bin/perl -w
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#
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# Program: profile.pl
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#
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# Synopsis: Insert instrumentation code into a program, run it with the JIT,
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# then print out a profile report.
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#
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# Syntax: profile.pl [OPTIONS] bytecodefile <arguments>
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#
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# OPTIONS may include one or more of the following:
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# -block - Enable basic block level profiling
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#
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# Any unrecognized options are passed into the invocation of llvm-prof
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#
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my $ProfilePass = "-insert-function-profiling";
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my $LLVMProfOpts = "";
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# Parse arguments...
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while (scalar(@ARGV) and ($_ = $ARGV[0], /^[-+]/)) {
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shift;
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last if /^--$/; # Stop processing arguments on --
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# List command line options here...
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if (/^-?-block$/) { $ProfilePass = "-insert-block-profiling"; next; }
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if (/^-?-help$/) {
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print "OVERVIEW: profile.pl - Instrumentation and profile printer.\n\n";
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print "USAGE: profile.pl [options] program.bc <program args>\n\n";
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print "OPTIONS:\n";
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print " -block - Enable basic block level profiling\n";
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print " -help - Print this usage information\n";
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print "\nAll other options are passed into llvm-prof.\n";
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exit 1;
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}
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# Otherwise, pass the option on to llvm-prof
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$LLVMProfOpts .= " " . $_;
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}
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die "Must specify LLVM bytecode file as first argument!" if (@ARGV == 0);
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my $BytecodeFile = $ARGV[0];
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shift @ARGV;
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my $LLIPath = `which lli`;
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$LLIPath = `dirname $LLIPath`;
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chomp $LLIPath;
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my $LibProfPath = $LLIPath . "/../../lib/Debug/libprofile_rt.so";
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system "opt -q $ProfilePass < $BytecodeFile | lli -fake-argv0 '$BytecodeFile'" .
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" -load $LibProfPath - " . (join ' ', @ARGV);
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system "llvm-prof $LLVMProfOpts $BytecodeFile";
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