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Drop llvmc also, it will be replaced by shiny new llvmc2

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50615 91177308-0d34-0410-b5e6-96231b3b80d8
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docs/CommandGuide/llvmc.pod
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=pod
=head1 NAME
llvmc - The LLVM Compiler Driver (experimental)
=head1 SYNOPSIS
B<llvmc> [I<options>] [I<filenames>...]
=head1 DESCRIPTION
B<llvmc> is a configurable driver for invoking other LLVM (and non-LLVM) tools
in order to compile, optimize and link software for multiple languages. For
those familiar with FSF's B<gcc> tool, it is very similar. Please note that
B<llvmc> is considered an experimental tool. B<llvmc> has the following goals:
=over
=item * provide a single point of access to the LLVM tool set,
=item * hide the complexities of the LLVM tools through a single interface,
=item * make integration of existing non-LLVM tools simple,
=item * extend the capabilities of minimal front ends, and
=item * make the interface for compiling consistent for all languages.
=back
The tool itself does nothing with a user's program. It merely invokes other
tools to get the compilation tasks done.
The options supported by B<llvmc> generalize the compilation process and
provide a consistent and simple interface for multiple programming languages.
This makes it easier for developers to get their software compiled with LLVM.
Without B<llvmc>, developers would need to understand how to invoke the
front-end compiler, optimizer, assembler, and linker in order to compile their
programs. B<llvmc>'s sole mission is to trivialize that process.
=head2 Basic Operation
B<llvmc> always takes the following basic actions:
=over
=item * Command line options and filenames are collected.
The command line options provide the marching orders to B<llvmc> on what actions
it should perform. This is the I<request> the user is making of B<llvmc> and it
is interpreted first.
=item * Configuration files are read.
Based on the options and the suffixes of the filenames presented, a set of
configuration files are read to configure the actions B<llvmc> will take.
Configuration files are provided by either LLVM or the front end compiler tools
that B<llvmc> invokes. Users generally don't need to be concerned with the
contents of the configuration files.
=item * Determine actions to take.
The tool chain needed to complete the task is determined. This is the primary
work of B<llvmc>. It breaks the request specified by the command line options
into a set of basic actions to be done:
=over
=item * Pre-processing: gathering/filtering compiler input (optional).
=item * Translation: source language to bitcode conversion.
=item * Assembly: bitcode to native code conversion.
=item * Optimization: conversion of bitcode to something that runs faster.
=item * Linking: combining multiple bitcode files to produce executable program.
=back
=item * Execute actions.
The actions determined previously are executed sequentially and then
B<llvmc> terminates.
=back
=head1 OPTIONS
=head2 Control Options
Control options tell B<llvmc> what to do at a high level. The
following control options are defined:
=over
=item B<-c> or B<--compile>
This option specifies that the linking phase is not to be run. All
previous phases, if applicable will run. This is generally how a given
bitcode file is compiled and optimized for a source language module.
=item B<-k> or B<--link> or default
This option (or the lack of any control option) specifies that all stages
of compilation, optimization, and linking should be attempted. Source files
specified on the command line will be compiled and linked with objects and
libraries also specified.
=item B<-S>
This option specifies that compilation should end in the creation of
an LLVM assembly file that can be later converted to an LLVM object
file.
=item B<-E>
This option specifies that no compilation or linking should be
performed. Only pre-processing, if applicable to the language being
compiled, is performed. For languages that support it, this will
result in the output containing the raw input to the compiler.
=back
=head2 Optimization Options
Optimization with B<llvmc> is based on goals and specified with
the following -O options. The specific details of which
optimizations run is controlled by the configuration files because
each source language will have different needs.
=over
=item B<-O1> or B<-O0> (default, fast compilation)
Only those optimizations that will hasten the compilation (mostly by reducing
the output) are applied. In general these are extremely fast and simple
optimizations that reduce emitted code size. The goal here is not to make the
resulting program fast but to make the compilation fast. If not specified,
this is the default level of optimization.
=item B<-O2> (basic optimization)
This level of optimization specifies a balance between generating good code
that will execute reasonably quickly and not spending too much time optimizing
the code to get there. For example, this level of optimization may include
things like global common sub-expression elimination, aggressive dead code
elimination, and scalar replication.
=item B<-O3> (aggressive optimization)
This level of optimization aggressively optimizes each set of files compiled
together. However, no link-time inter-procedural optimization is performed.
This level implies all the optimizations of the B<-O1> and B<-O2> optimization
levels, and should also provide loop optimizations and compile time
inter-procedural optimizations. Essentially, this level tries to do as much
as it can with the input it is given but doesn't do any link time IPO.
=item B<-O4> (link time optimization)
In addition to the previous three levels of optimization, this level of
optimization aggressively optimizes each program at link time. It employs
basic analysis and basic link-time inter-procedural optimizations,
considering the program as a whole.
=item B<-O5> (aggressive link time optimization)
This is the same as B<-O4> except it employs aggressive analyses and
aggressive inter-procedural optimization.
=item B<-O6> (profile guided optimization: not implemented)
This is the same as B<-O5> except that it employs profile-guided
re-optimization of the program after it has executed. Note that this implies
a single level of re-optimization based on run time profile analysis. Once
the re-optimization has completed, the profiling instrumentation is
removed and final optimizations are employed.
=item B<-O7> (lifelong optimization: not implemented)
This is the same as B<-O5> and similar to B<-O6> except that re-optimization
is performed through the life of the program. That is, each run will update
the profile by which future re-optimizations are directed.
=back
=head2 Input Options
=over
=item B<-l> I<LIBRARY>
This option instructs B<llvmc> to locate a library named I<LIBRARY> and search
it for unresolved symbols when linking the program.
=item B<-L> F<path>
This option instructs B<llvmc> to add F<path> to the list of places in which
the linker will
=item B<-x> I<LANGUAGE>
This option instructs B<llvmc> to regard the following input files as
containing programs in the language I<LANGUAGE>. Normally, input file languages
are identified by their suffix but this option will override that default
behavior. The B<-x> option stays in effect until the end of the options or
a new B<-x> option is encountered.
=back
=head2 Output Options
=over
=item B<-m>I<arch>
This option selects the back end code generator to use. The I<arch> portion
of the option names the back end to use.
=item B<--native>
Normally, B<llvmc> produces bitcode files at most stages of compilation.
With this option, B<llvmc> will arrange for native object files to be
generated with the B<-c> option, native assembly files to be generated
with the B<-S> option, and native executables to be generated with the
B<--link> option. In the case of the B<-E> option, the output will not
differ as there is no I<native> version of pre-processed output.
=item B<-o> F<filename>
Specify the output file name. The contents of the file depend on other
options.
=back
=head2 Information Options
=over
=item B<-n> or B<--no-op>
This option tells B<llvmc> to do everything but actually execute the
resulting tools. In combination with the B<-v> option, this causes B<llvmc>
to merely print out what it would have done.
=item B<-v> or B<--verbose>
This option will cause B<llvmc> to print out (on standard output) each of the
actions it takes to accomplish the objective. The output will immediately
precede the invocation of other tools.
=item B<--stats>
Print all statistics gathered during the compilation to the standard error.
Note that this option is merely passed through to the sub-tools to do with
as they please.
=item B<--time-passes>
Record the amount of time needed for each optimization pass and print it
to standard error. Like B<--stats> this option is just passed through to
the sub-tools to do with as they please.
=item B<--time-programs>
Record the amount of time each program (compilation tool) takes and print
it to the standard error.
=back
=head2 Language Specific Options
=over
=item B<-T,pre>=I<options>
Pass an arbitrary option to the pre-processor.
=item B<-T,opt>=I<options>
Pass an arbitrary option to the optimizer.
=item B<-T,lnk>=I<options>
Pass an arbitrary option to the linker.
=item B<-T,asm>=I<options>
Pass an arbitrary option to the code generator.
=back
=head2 C/C++ Specific Options
=over
=item B<-I>F<path>
This option is just passed through to a C or C++ front end compiler to tell it
where include files can be found.
=item B<-D>F<symbol>
This option is just passed through to a C or C++ front end compiler to tell it
to define a symbol.
=back
=head2 Miscellaneous Options
=over
=item B<--help>
Print a summary of command line options.
=item B<--version>
This option will cause B<llvmc> to print out its version number and terminate.
=back
=head2 Advanced Options
You better know what you're doing if you use these options. Improper use
of these options can produce drastically wrong results.
=over
=item B<--config-dir> F<dirname>
This option tells B<llvmc> to read configuration data from the I<directory>
named F<dirname>. Data from such directories will be read in the order
specified on the command line after all other standard configuration files have
been read. This allows users or groups of users to conveniently create
their own configuration directories in addition to the standard ones to which
they may not have write access.
=back
=head2 Unimplemented Options
The options below are not currently implemented in B<llvmc> but will be
eventually. They are documented here as "future design".
=over
=item B<--show-config> I<[suffixes...]>
When this option is given, the only action taken by B<llvmc> is to show its
final configuration state in the form of a configuration file. No compilation
tasks will be conducted when this option is given; processing will stop once
the configuration has been printed. The optional (comma separated) list of
suffixes controls what is printed. Without any suffixes, the configuration
for all languages is printed. With suffixes, only the languages pertaining
to those file suffixes will be printed. The configuration information is
printed after all command line options and configuration files have been
read and processed. This allows the user to verify that the correct
configuration data has been read by B<llvmc>.
=item B<--config> :I<section>:I<name>=I<value>
This option instructs B<llvmc> to accept I<value> as the value for configuration
item I<name> in the section named I<section>. This is a quick way to override
a configuration item on the command line without resorting to changing the
configuration files.
=item B<--config-only-from> F<dirname>
This option tells B<llvmc> to skip the normal processing of configuration
files and only configure from the contents of the F<dirname> directory. Multiple
B<--config-only-from> options may be given in which case the directories are
read in the order given on the command line.
=item B<--emit-raw-code>
No optimization is done whatsoever. The compilers invoked by B<llvmc> with
this option given will be instructed to produce raw, unoptimized code. This
option is useful only to front end language developers and therefore does not
participate in the list of B<-O> options. This is distinctly different from
the B<-O0> option (a synonym for B<-O1>) because those optimizations will
reduce code size to make compilation faster. With B<--emit-raw-code>, only
the full raw code produced by the compiler will be generated.
=back
=head1 EXIT STATUS
If B<llvmc> succeeds, it will exit with 0. Otherwise, if an error
occurs, it will exit with a non-zero value and no compilation actions
will be taken. If one of the compilation tools returns a non-zero
status, pending actions will be discarded and B<llvmc> will return the
same result code as the failing compilation tool.
=head1 DEFICIENCIES
B<llvmc> is considered an experimental LLVM tool because it has these
deficiencies:
=over
=item Insufficient support for native linking
Because B<llvm-ld> doesn't handle native linking, neither can B<llvmc>
=item Poor configuration support
The support for configuring new languages, etc. is weak. There are many
command line configurations that cannot be achieved with the current
support. Furthermore the grammar is cumbersome for configuration files.
Please see L<http://llvm.org/PR686> for further details.
=item Does not handle target specific configurations
This is one of the major deficiencies, also addressed in
L<http://llvm.org/PR686>
=back
=head1 SEE ALSO
L<llvm-as|llvm-as>, L<llvm-dis|llvm-dis>, L<llc|llc>, L<llvm-link|llvm-link>
=head1 AUTHORS
Maintained by the LLVM Team (L<http://llvm.org>).
=cut

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tools/llvmc/CompilerDriver.cpp
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//===- CompilerDriver.h - Compiler Driver -----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the CompilerDriver class which implements the bulk of the
// LLVM Compiler Driver program (llvmc).
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVMC_COMPILERDRIVER_H
#define LLVM_TOOLS_LLVMC_COMPILERDRIVER_H
#include <string>
#include <vector>
#include "llvm/System/Program.h"
namespace llvm {
/// This class provides the high level interface to the LLVM Compiler Driver.
/// The driver's purpose is to make it easier for compiler writers and users
/// of LLVM to utilize the compiler toolkits and LLVM toolset by learning only
/// the interface of one program (llvmc).
///
/// @see llvmc.cpp
/// @brief The interface to the LLVM Compiler Driver.
class CompilerDriver {
/// @name Types
/// @{
public:
/// @brief A vector of strings, used for argument lists
typedef std::vector<std::string> StringVector;
/// @brief A vector of sys::Path, used for path lists
typedef std::vector<sys::Path> PathVector;
/// @brief A table of strings, indexed typically by Phases
typedef std::vector<StringVector> StringTable;
/// @brief The phases of processing that llvmc understands
enum Phases {
PREPROCESSING, ///< Source language combining, filtering, substitution
TRANSLATION, ///< Translate source -> LLVM bitcode/assembly
OPTIMIZATION, ///< Optimize translation result
ASSEMBLY, ///< Convert program to executable
LINKING, ///< Link bitcode and native code
NUM_PHASES ///< Always last!
};
/// @brief The levels of optimization llvmc understands
enum OptimizationLevels {
OPT_FAST_COMPILE, ///< Optimize to make >compile< go faster
OPT_SIMPLE, ///< Standard/simple optimizations
OPT_AGGRESSIVE, ///< Aggressive optimizations
OPT_LINK_TIME, ///< Aggressive + LinkTime optimizations
OPT_AGGRESSIVE_LINK_TIME, ///< Make it go way fast!
OPT_NONE ///< No optimizations. Keep this at the end!
};
/// @brief Action specific flags
enum ConfigurationFlags {
REQUIRED_FLAG = 0x0001, ///< Should the action always be run?
PREPROCESSES_FLAG = 0x0002, ///< Does this action preprocess?
TRANSLATES_FLAG = 0x0004, ///< Does this action translate?
OUTPUT_IS_ASM_FLAG = 0x0008, ///< Action produces .ll files?
FLAGS_MASK = 0x000F ///< Union of all flags
};
/// This type is the input list to the CompilerDriver. It provides
/// a vector of pathname/filetype pairs. The filetype is used to look up
/// the configuration of the actions to be taken by the driver.
/// @brief The Input Data to the execute method
typedef std::vector<std::pair<sys::Path,std::string> > InputList;
/// This type is read from configuration files or otherwise provided to
/// the CompilerDriver through a "ConfigDataProvider". It serves as both
/// the template of what to do and the actual Action to be executed.
/// @brief A structure to hold the action data for a given source
/// language.
struct Action {
Action() : flags(0) {}
sys::Path program; ///< The program to execve
StringVector args; ///< Arguments to the program
unsigned flags; ///< Action specific flags
void set(unsigned fl ) { flags |= fl; }
void clear(unsigned fl) { flags &= (FLAGS_MASK ^ fl); }
bool isSet(unsigned fl) { return (flags&fl) != 0; }
};
struct ConfigData {
ConfigData();
std::string version; ///< The version number.
std::string langName; ///< The name of the source language
StringTable opts; ///< The o10n options for each level
StringVector libpaths; ///< The library paths
Action PreProcessor; ///< PreProcessor command line
Action Translator; ///< Translator command line
Action Optimizer; ///< Optimizer command line
Action Assembler; ///< Assembler command line
Action Linker; ///< Linker command line
};
/// This pure virtual interface class defines the interface between the
/// CompilerDriver and other software that provides ConfigData objects to
/// it. The CompilerDriver must be configured to use an object of this
/// type so it can obtain the configuration data.
/// @see setConfigDataProvider
/// @brief Configuration Data Provider interface
class ConfigDataProvider {
public:
virtual ~ConfigDataProvider();
virtual ConfigData* ProvideConfigData(const std::string& filetype) = 0;
virtual void setConfigDir(const sys::Path& dirName) = 0;
};
/// These flags control various actions of the compiler driver. They are
/// used by adding the needed flag values together and passing them to the
/// compiler driver's setDriverFlags method.
/// @see setDriverFlags
/// @brief Driver specific flags
enum DriverFlags {
DRY_RUN_FLAG = 0x0001, ///< Do everything but execute actions
VERBOSE_FLAG = 0x0002, ///< Print each action
DEBUG_FLAG = 0x0004, ///< Print debug information
TIME_PASSES_FLAG = 0x0008, ///< Time the passes as they execute
TIME_ACTIONS_FLAG = 0x0010, ///< Time the actions as they execute
SHOW_STATS_FLAG = 0x0020, ///< Show pass statistics
EMIT_NATIVE_FLAG = 0x0040, ///< Emit native code instead of bc
EMIT_RAW_FLAG = 0x0080, ///< Emit raw, unoptimized bitcode
KEEP_TEMPS_FLAG = 0x0100, ///< Don't delete temporary files
STRIP_OUTPUT_FLAG = 0x0200, ///< Strip symbols from linked output
DRIVER_FLAGS_MASK = 0x03FF ///< Union of the above flags
};
/// @}
/// @name Constructors
/// @{
public:
/// @brief Static Constructor
static CompilerDriver* Get(ConfigDataProvider& CDP);
/// @brief Virtual destructor
virtual ~CompilerDriver();
/// @}
/// @name Methods
/// @{
public:
/// @brief Execute the actions requested for the given input list.
virtual int execute(
const InputList& list, const sys::Path& output, std::string& ErrMsg) =0;
/// @brief Set the final phase at which compilation terminates
virtual void setFinalPhase(Phases phase) = 0;
/// @brief Set the optimization level for the compilation
virtual void setOptimization(OptimizationLevels level) = 0;
/// @brief Set the driver flags.
virtual void setDriverFlags(unsigned flags) = 0;
/// @brief Set the output machine name.
virtual void setOutputMachine(const std::string& machineName) = 0;
/// @brief Set the options for a given phase.
virtual void setPhaseArgs(Phases phase, const StringVector& opts) = 0;
/// @brief Set Library Paths
virtual void setIncludePaths(const StringVector& paths) = 0;
/// @brief Set Library Paths
virtual void setSymbolDefines(const StringVector& paths) = 0;
/// @brief Set Library Paths
virtual void setLibraryPaths(const StringVector& paths) = 0;
/// @brief Add a path to the list of library paths
virtual void addLibraryPath( const sys::Path& libPath ) = 0;
/// @brief Add a path to the list of paths in which to find tools
virtual void addToolPath( const sys::Path& toolPath) = 0;
/// @brief Set the list of -f options to be passed through
virtual void setfPassThrough(const StringVector& fOpts) = 0;
/// @brief Set the list of -M options to be passed through
virtual void setMPassThrough(const StringVector& fOpts) = 0;
/// @brief Set the list of -W options to be passed through
virtual void setWPassThrough(const StringVector& fOpts) = 0;
/// @brief Determine where a linkage file is located in the file system
virtual sys::Path GetPathForLinkageItem(
const std::string& link_item, ///< Item to be sought
bool native = false ///< Looking for native?
) = 0;
/// @}
};
}
// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
#endif

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//===- ConfigLexer.h - ConfigLexer Declarations -----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the types and data needed by ConfigLexer.l
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVMC_CONFIGLEXER_H
#define LLVM_TOOLS_LLVMC_CONFIGLEXER_H
#include <string>
#include <istream>
#include <cassert>
namespace llvm {
struct ConfigLexerInfo
{
int64_t IntegerVal;
std::string StringVal;
bool in_value;
unsigned lineNum;
};
extern ConfigLexerInfo ConfigLexerState;
class InputProvider {
public:
InputProvider(const std::string& nm) {
name = nm;
errCount = 0;
}
virtual ~InputProvider();
virtual unsigned read(char *buf, unsigned max_size) = 0;
virtual void error(const std::string& msg);
virtual void checkErrors();
private:
std::string name;
unsigned errCount;
};
extern InputProvider* ConfigLexerInput;
enum ConfigLexerTokens {
EOFTOK = 0, ///< Returned by Configlex when we hit end of file
EOLTOK, ///< End of line
ERRORTOK, ///< Error token
ARGS_SUBST, ///< The substitution item %args%
BINDIR_SUBST, ///< The substitution item %bindir%
ASSEMBLY, ///< The value "assembly" (and variants)
ASSEMBLER, ///< The name "assembler" (and variants)
BITCODE, ///< The value "bitcode" (and variants)
COMMAND, ///< The name "command" (and variants)
DEFS_SUBST, ///< The substitution item %defs%
EQUALS, ///< The equals sign, =
FALSETOK, ///< A boolean false value (false/no/off)
FOPTS_SUBST, ///< The substitution item %fOpts%
IN_SUBST, ///< The substitution item %in%
INCLS_SUBST, ///< The substitution item %incls%
INTEGER, ///< An integer
LANG, ///< The name "lang" (and variants)
LIBDIR_SUBST, ///< The substitution item %libdir%
LIBPATHS, ///< The name "libpaths" (and variants)
LIBS, ///< The name "libs" (and variants)
LIBS_SUBST, ///< The substitution item %libs%
LINKER, ///< The name "linker" (and variants)
LLVMGCCDIR_SUBST, ///< The substitution item %llvmgccdir%
LLVMGCCARCH_SUBST, ///< The substitution item %llvmgccarch%
LLVMGCC_SUBST, ///< The substitution item %llvmgcc%
LLVMGXX_SUBST, ///< The substitution item %llvmgxx%
LLVMCC1_SUBST, ///< The substitution item %llvmcc1%
LLVMCC1PLUS_SUBST, ///< The substitution item %llvmcc1plus%
MOPTS_SUBST, ///< The substitution item %Mopts%
NAME, ///< The name "name" (and variants)
OPT_SUBST, ///< The substitution item %opt%
OPTIMIZER, ///< The name "optimizer" (and variants)
OPTION, ///< A command line option
OPT1, ///< The name "opt1" (and variants)
OPT2, ///< The name "opt2" (and variants)
OPT3, ///< The name "opt3" (and variants)
OPT4, ///< The name "opt4" (and variants)
OPT5, ///< The name "opt5" (and variants)
OUT_SUBST, ///< The output substitution item %out%
OUTPUT, ///< The name "output" (and variants)
PREPROCESSES, ///< The name "preprocesses" (and variants)
PREPROCESSOR, ///< The name "preprocessor" (and variants)
REQUIRED, ///< The name "required" (and variants)
SEPARATOR, ///< A configuration item separator
SPACE, ///< Space between options
STATS_SUBST, ///< The stats substitution item %stats%
STRING, ///< A quoted string
TARGET_SUBST, ///< The substitition item %target%
TIME_SUBST, ///< The substitution item %time%
TRANSLATES, ///< The name "translates" (and variants)
TRANSLATOR, ///< The name "translator" (and variants)
TRUETOK, ///< A boolean true value (true/yes/on)
VERBOSE_SUBST, ///< The substitution item %verbose%
VERSION_TOK, ///< The name "version" (and variants)
WOPTS_SUBST ///< The %WOpts% substitution
};
extern ConfigLexerTokens Configlex();
}
#endif

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/*===- ConfigLexer.l - Scanner for CompilerDriver Config Files -*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the flex scanner for configuration files for the
// llvmc CompilerDriver.
//
//===----------------------------------------------------------------------===*/
%option prefix="Config"
%option nostdinit
%option never-interactive
%option batch
%option noyywrap
%option 8bit
%option outfile="ConfigLexer.cpp"
%option ecs
%option noyymore
%option noreject
%pointer
%{
#include "ConfigLexer.h"
#define YY_INPUT(buf,result,max_size) \
{ \
assert(ConfigLexerInput != 0 && "Oops"); \
result = ConfigLexerInput->read(buf,max_size); \
if (result == 0 ) result = YY_NULL; \
}
#define YY_FATAL_ERROR(msg) \
{ \
assert(ConfigLexerInput != 0 && "Oops"); \
ConfigLexerInput->error(msg); \
}
#define YY_DECL ConfigLexerTokens llvm::Configlex()
#define yyterminate() { return EOFTOK; }
using namespace llvm;
inline llvm::ConfigLexerTokens
handleNameContext(llvm::ConfigLexerTokens token) {
ConfigLexerState.StringVal = yytext;
if (ConfigLexerState.in_value)
return OPTION;
return token;
}
inline llvm::ConfigLexerTokens
handleSubstitution(llvm::ConfigLexerTokens token) {
if (ConfigLexerState.in_value) {
ConfigLexerState.StringVal = yytext;
return token;
}
YY_FATAL_ERROR("Substitition tokens not allowed in names" );
return ERRORTOK;
}
inline llvm::ConfigLexerTokens handleValueContext(llvm::ConfigLexerTokens token) {
ConfigLexerState.StringVal = yytext;
if (ConfigLexerState.in_value)
return token;
return OPTION;
}
%}
ASSEMBLER assembler|Assembler|ASSEMBLER
COMMAND command|Command|COMMAND
LANG lang|Lang|LANG
LIBS libs|Libs|LIBS
LINKER linker|Linker|LINKER
NAME name|Name|NAME
OPT1 opt1|Opt1|OPT1
OPT2 opt2|Opt2|OPT2
OPT3 opt3|Opt3|OPT3
OPT4 opt4|Opt4|OPT4
OPT5 opt5|Opt5|OPT5
OPTIMIZER optimizer|Optimizer|OPTIMIZER
OUTPUT output|Output|OUTPUT
PREPROCESSES preprocesses|PreProcesses|PREPROCESSES
PREPROCESSOR preprocessor|PreProcessor|PREPROCESSOR
REQUIRED required|Required|REQUIRED
TRANSLATES translates|Translates|TRANSLATES
TRANSLATOR translator|Translator|TRANSLATOR
VERSION version|Version|VERSION
True true|True|TRUE|on|On|ON|yes|Yes|YES
False false|False|FALSE|off|Off|OFF|no|No|NO
Bitcode bc|BC|bitcode|Bitcode|BITCODE
Assembly asm|ASM|assembly|Assembly|ASSEMBLY
BadSubst \%[a-zA-Z]*\%
Comment \#[^\r\n]*\r?\n
NewLine \r?\n
Eq \=
EscNewLine \\\r?\n
Option [-A-Za-z0-9_:%+/\\|,][-A-Za-z0-9_:+/\\|,@]*
Sep \.
String \"[^\"]*\"
White [ \t]*
%%
{White} { if (ConfigLexerState.in_value) return SPACE; }
{Comment} { /* Ignore comments */
ConfigLexerState.in_value = false;
ConfigLexerState.lineNum++;
return EOLTOK;
}
{EscNewLine} { ConfigLexerState.lineNum++;
/* Don't return EOLTOK! */
}
{NewLine} { ConfigLexerState.in_value = false;
ConfigLexerState.lineNum++;
return EOLTOK;
}
{Eq} { ConfigLexerState.in_value = true;
return EQUALS;
}
{Sep} { return SEPARATOR; }
{VERSION} { return handleNameContext(VERSION_TOK); }
{LANG} { return handleNameContext(LANG); }
{LIBS} { return handleNameContext(LIBS); }
{NAME} { return handleNameContext(NAME); }
{OPT1} { return handleNameContext(OPT1); }
{OPT2} { return handleNameContext(OPT2); }
{OPT3} { return handleNameContext(OPT3); }
{OPT4} { return handleNameContext(OPT4); }
{OPT5} { return handleNameContext(OPT5); }
{PREPROCESSOR} { return handleNameContext(PREPROCESSOR); }
{COMMAND} { return handleNameContext(COMMAND); }
{REQUIRED} { return handleNameContext(REQUIRED); }
{TRANSLATOR} { return handleNameContext(TRANSLATOR); }
{PREPROCESSES} { return handleNameContext(PREPROCESSES); }
{OUTPUT} { return handleNameContext(OUTPUT); }
{OPTIMIZER} { return handleNameContext(OPTIMIZER); }
{TRANSLATES} { return handleNameContext(TRANSLATES); }
{ASSEMBLER} { return handleNameContext(ASSEMBLER); }
{LINKER} { return handleNameContext(LINKER); }
%args% { return handleSubstitution(ARGS_SUBST); }
%bindir% { return handleSubstitution(BINDIR_SUBST); }
%defs% { return handleSubstitution(DEFS_SUBST); }
%in% { return handleSubstitution(IN_SUBST); }
%incls% { return handleSubstitution(INCLS_SUBST); }
%libdir% { return handleSubstitution(LIBDIR_SUBST); }
%libs% { return handleSubstitution(LIBS_SUBST); }
%llvmgccdir% { return handleSubstitution(LLVMGCCDIR_SUBST); }
%llvmgccarch% { return handleSubstitution(LLVMGCCARCH_SUBST); }
%llvmgcc% { return handleSubstitution(LLVMGCC_SUBST); }
%llvmgxx% { return handleSubstitution(LLVMGXX_SUBST); }
%llvmcc1% { return handleSubstitution(LLVMCC1_SUBST); }
%llvmcc1plus% { return handleSubstitution(LLVMCC1PLUS_SUBST); }
%opt% { return handleSubstitution(OPT_SUBST); }
%out% { return handleSubstitution(OUT_SUBST); }
%stats% { return handleSubstitution(STATS_SUBST); }
%target% { return handleSubstitution(TARGET_SUBST); }
%time% { return handleSubstitution(TIME_SUBST); }
%verbose% { return handleSubstitution(VERBOSE_SUBST); }
%fOpts% { return handleSubstitution(FOPTS_SUBST); }
%MOpts% { return handleSubstitution(MOPTS_SUBST); }
%WOpts% { return handleSubstitution(WOPTS_SUBST); }
{Assembly} { return handleValueContext(ASSEMBLY); }
{Bitcode} { return handleValueContext(BITCODE); }
{True} { return handleValueContext(TRUETOK); }
{False} { return handleValueContext(FALSETOK); }
{Option} { ConfigLexerState.StringVal = yytext; return OPTION; }
{String} { ConfigLexerState.StringVal = yytext+1; // Nuke start quote
ConfigLexerState.StringVal.erase(
--ConfigLexerState.StringVal.end());
return STRING;
}
{BadSubst} { YY_FATAL_ERROR("Invalid substitution token"); }
%%

201
tools/llvmc/ConfigLexer.l.cvs
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@ -1,201 +0,0 @@
/*===- ConfigLexer.l - Scanner for CompilerDriver Config Files -*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the flex scanner for configuration files for the
// llvmc CompilerDriver.
//
//===----------------------------------------------------------------------===*/
%option prefix="Config"
%option nostdinit
%option never-interactive
%option batch
%option noyywrap
%option 8bit
%option outfile="ConfigLexer.cpp"
%option ecs
%option noyymore
%option noreject
%pointer
%{
#include "ConfigLexer.h"
#define YY_INPUT(buf,result,max_size) \
{ \
assert(ConfigLexerInput != 0 && "Oops"); \
result = ConfigLexerInput->read(buf,max_size); \
if (result == 0 ) result = YY_NULL; \
}
#define YY_FATAL_ERROR(msg) \
{ \
assert(ConfigLexerInput != 0 && "Oops"); \
ConfigLexerInput->error(msg); \
}
#define YY_DECL ConfigLexerTokens llvm::Configlex()
#define yyterminate() { return EOFTOK; }
using namespace llvm;
inline llvm::ConfigLexerTokens
handleNameContext(llvm::ConfigLexerTokens token) {
ConfigLexerState.StringVal = yytext;
if (ConfigLexerState.in_value)
return OPTION;
return token;
}
inline llvm::ConfigLexerTokens
handleSubstitution(llvm::ConfigLexerTokens token) {
if (ConfigLexerState.in_value) {
ConfigLexerState.StringVal = yytext;
return token;
}
YY_FATAL_ERROR("Substitition tokens not allowed in names" );
return ERRORTOK;
}
inline llvm::ConfigLexerTokens handleValueContext(llvm::ConfigLexerTokens token) {
ConfigLexerState.StringVal = yytext;
if (ConfigLexerState.in_value)
return token;
return OPTION;
}
%}
ASSEMBLER assembler|Assembler|ASSEMBLER
COMMAND command|Command|COMMAND
LANG lang|Lang|LANG
LIBS libs|Libs|LIBS
LINKER linker|Linker|LINKER
NAME name|Name|NAME
OPT1 opt1|Opt1|OPT1
OPT2 opt2|Opt2|OPT2
OPT3 opt3|Opt3|OPT3
OPT4 opt4|Opt4|OPT4
OPT5 opt5|Opt5|OPT5
OPTIMIZER optimizer|Optimizer|OPTIMIZER
OUTPUT output|Output|OUTPUT
PREPROCESSES preprocesses|PreProcesses|PREPROCESSES
PREPROCESSOR preprocessor|PreProcessor|PREPROCESSOR
REQUIRED required|Required|REQUIRED
TRANSLATES translates|Translates|TRANSLATES
TRANSLATOR translator|Translator|TRANSLATOR
VERSION version|Version|VERSION
True true|True|TRUE|on|On|ON|yes|Yes|YES
False false|False|FALSE|off|Off|OFF|no|No|NO
Bitcode bc|BC|bitcode|Bitcode|BITCODE
Assembly asm|ASM|assembly|Assembly|ASSEMBLY
BadSubst \%[a-zA-Z]*\%
Comment \#[^\r\n]*\r?\n
NewLine \r?\n
Eq \=
EscNewLine \\\r?\n
Option [-A-Za-z0-9_:%+/\\|,][-A-Za-z0-9_:+/\\|,@]*
Sep \.
String \"[^\"]*\"
White [ \t]*
%%
{White} { if (ConfigLexerState.in_value) return SPACE; }
{Comment} { /* Ignore comments */
ConfigLexerState.in_value = false;
ConfigLexerState.lineNum++;
return EOLTOK;
}
{EscNewLine} { ConfigLexerState.lineNum++;
/* Don't return EOLTOK! */
}
{NewLine} { ConfigLexerState.in_value = false;
ConfigLexerState.lineNum++;
return EOLTOK;
}
{Eq} { ConfigLexerState.in_value = true;
return EQUALS;
}
{Sep} { return SEPARATOR; }
{VERSION} { return handleNameContext(VERSION_TOK); }
{LANG} { return handleNameContext(LANG); }
{LIBS} { return handleNameContext(LIBS); }
{NAME} { return handleNameContext(NAME); }
{OPT1} { return handleNameContext(OPT1); }
{OPT2} { return handleNameContext(OPT2); }
{OPT3} { return handleNameContext(OPT3); }
{OPT4} { return handleNameContext(OPT4); }
{OPT5} { return handleNameContext(OPT5); }
{PREPROCESSOR} { return handleNameContext(PREPROCESSOR); }
{COMMAND} { return handleNameContext(COMMAND); }
{REQUIRED} { return handleNameContext(REQUIRED); }
{TRANSLATOR} { return handleNameContext(TRANSLATOR); }
{PREPROCESSES} { return handleNameContext(PREPROCESSES); }
{OUTPUT} { return handleNameContext(OUTPUT); }
{OPTIMIZER} { return handleNameContext(OPTIMIZER); }
{TRANSLATES} { return handleNameContext(TRANSLATES); }
{ASSEMBLER} { return handleNameContext(ASSEMBLER); }
{LINKER} { return handleNameContext(LINKER); }
%args% { return handleSubstitution(ARGS_SUBST); }
%bindir% { return handleSubstitution(BINDIR_SUBST); }
%defs% { return handleSubstitution(DEFS_SUBST); }
%in% { return handleSubstitution(IN_SUBST); }
%incls% { return handleSubstitution(INCLS_SUBST); }
%libdir% { return handleSubstitution(LIBDIR_SUBST); }
%libs% { return handleSubstitution(LIBS_SUBST); }
%llvmgccdir% { return handleSubstitution(LLVMGCCDIR_SUBST); }
%llvmgccarch% { return handleSubstitution(LLVMGCCARCH_SUBST); }
%llvmgcc% { return handleSubstitution(LLVMGCC_SUBST); }
%llvmgxx% { return handleSubstitution(LLVMGXX_SUBST); }
%llvmcc1% { return handleSubstitution(LLVMCC1_SUBST); }
%llvmcc1plus% { return handleSubstitution(LLVMCC1PLUS_SUBST); }
%opt% { return handleSubstitution(OPT_SUBST); }
%out% { return handleSubstitution(OUT_SUBST); }
%stats% { return handleSubstitution(STATS_SUBST); }
%target% { return handleSubstitution(TARGET_SUBST); }
%time% { return handleSubstitution(TIME_SUBST); }
%verbose% { return handleSubstitution(VERBOSE_SUBST); }
%fOpts% { return handleSubstitution(FOPTS_SUBST); }
%MOpts% { return handleSubstitution(MOPTS_SUBST); }
%WOpts% { return handleSubstitution(WOPTS_SUBST); }
{Assembly} { return handleValueContext(ASSEMBLY); }
{Bitcode} { return handleValueContext(BITCODE); }
{True} { return handleValueContext(TRUETOK); }
{False} { return handleValueContext(FALSETOK); }
{Option} { ConfigLexerState.StringVal = yytext; return OPTION; }
{String} { ConfigLexerState.StringVal = yytext+1; // Nuke start quote
ConfigLexerState.StringVal.erase(
--ConfigLexerState.StringVal.end());
return STRING;
}
{BadSubst} { YY_FATAL_ERROR("Invalid substitution token"); }
%%

632
tools/llvmc/Configuration.cpp
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@ -1,632 +0,0 @@
//===- Configuration.cpp - Configuration Data Mgmt --------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the parsing of configuration files for the LLVM Compiler
// Driver (llvmc).
//
//===----------------------------------------------------------------------===//
#include "Configuration.h"
#include "ConfigLexer.h"
#include "CompilerDriver.h"
#include "llvm/Config/config.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/ADT/StringExtras.h"
#include <iostream>
#include <fstream>
using namespace llvm;
namespace sys {
// From CompilerDriver.cpp (for now)
extern bool FileIsReadable(const std::string& fname);
}
namespace llvm {
ConfigLexerInfo ConfigLexerState;
InputProvider* ConfigLexerInput = 0;
InputProvider::~InputProvider() {}
void InputProvider::error(const std::string& msg) {
std::cerr << name << ":" << ConfigLexerState.lineNum << ": Error: " <<
msg << "\n";
errCount++;
}
void InputProvider::checkErrors() {
if (errCount > 0) {
std::cerr << name << " had " << errCount << " errors. Terminating.\n";
exit(errCount);
}
}
}
namespace {
class FileInputProvider : public InputProvider {
public:
FileInputProvider(const std::string & fname)
: InputProvider(fname)
, F(fname.c_str()) {
ConfigLexerInput = this;
}
virtual ~FileInputProvider() { F.close(); ConfigLexerInput = 0; }
virtual unsigned read(char *buffer, unsigned max_size) {
if (F.good()) {
F.read(buffer,max_size);
if ( F.gcount() ) return F.gcount() - 1;
}
return 0;
}
bool okay() { return F.good(); }
private:
std::ifstream F;
};
cl::opt<bool> DumpTokens("dump-tokens", cl::Optional, cl::Hidden,
cl::init(false), cl::desc("Dump lexical tokens (debug use only)."));
struct Parser
{
Parser() {
token = EOFTOK;
provider = 0;
confDat = 0;
ConfigLexerState.lineNum = 1;
ConfigLexerState.in_value = false;
ConfigLexerState.StringVal.clear();
ConfigLexerState.IntegerVal = 0;
};
ConfigLexerTokens token;
InputProvider* provider;
CompilerDriver::ConfigData* confDat;
inline int next() {
token = Configlex();
if (DumpTokens)
std::cerr << token << "\n";
return token;
}
inline bool next_is_real() {
next();
return (token != EOLTOK) && (token != ERRORTOK) && (token != 0);
}
inline void eatLineRemnant() {
while (next_is_real()) ;
}
void error(const std::string& msg, bool skip = true) {
provider->error(msg);
if (skip)
eatLineRemnant();
}
bool parseCompleteItem(std::string& result) {
result.clear();
while (next_is_real()) {
switch (token ) {
case LLVMGCCDIR_SUBST:
case LLVMGCCARCH_SUBST:
case STRING :
case OPTION :
result += ConfigLexerState.StringVal;
break;
case SEPARATOR:
result += ".";
break;
case SPACE:
return true;
default:
return false;
}
}
return false;
}
std::string parseName() {
std::string result;
if (next() == EQUALS) {
if (parseCompleteItem(result))
eatLineRemnant();
if (result.empty())
error("Name exepected");
} else
error("Expecting '='");
return result;
}
bool parseBoolean() {
bool result = true;
if (next() == EQUALS) {
if (next() == SPACE)
next();
if (token == FALSETOK) {
result = false;
} else if (token != TRUETOK) {
error("Expecting boolean value");
return false;
}
if (next() != EOLTOK && token != 0) {
error("Extraneous tokens after boolean");
}
}
else
error("Expecting '='");
return result;
}
bool parseSubstitution(CompilerDriver::StringVector& optList) {
switch (token) {
case ARGS_SUBST: optList.push_back("%args%"); break;
case BINDIR_SUBST: optList.push_back("%bindir%"); break;
case DEFS_SUBST: optList.push_back("%defs%"); break;
case IN_SUBST: optList.push_back("%in%"); break;
case INCLS_SUBST: optList.push_back("%incls%"); break;
case LIBDIR_SUBST: optList.push_back("%libdir%"); break;
case LIBS_SUBST: optList.push_back("%libs%"); break;
case OPT_SUBST: optList.push_back("%opt%"); break;
case OUT_SUBST: optList.push_back("%out%"); break;
case TARGET_SUBST: optList.push_back("%target%"); break;
case STATS_SUBST: optList.push_back("%stats%"); break;
case TIME_SUBST: optList.push_back("%time%"); break;
case VERBOSE_SUBST: optList.push_back("%verbose%"); break;
case FOPTS_SUBST: optList.push_back("%fOpts%"); break;
case MOPTS_SUBST: optList.push_back("%Mopts%"); break;
case WOPTS_SUBST: optList.push_back("%Wopts%"); break;
default:
return false;
}
return true;
}
void parseOptionList(CompilerDriver::StringVector& optList ) {
if (next() == EQUALS) {
while (next_is_real()) {
if (token == STRING || token == OPTION)
optList.push_back(ConfigLexerState.StringVal);
else if (!parseSubstitution(optList)) {
error("Expecting a program argument or substitution", false);
break;
}
}
} else
error("Expecting '='");
}
void parseVersion() {
if (next() != EQUALS)
error("Expecting '='");
while (next_is_real()) {
if (token == STRING || token == OPTION)
confDat->version = ConfigLexerState.StringVal;
else
error("Expecting a version string");
}
}
void parseLibs() {
if (next() != EQUALS)
error("Expecting '='");
std::string lib;
while (parseCompleteItem(lib)) {
if (!lib.empty()) {
confDat->libpaths.push_back(lib);
}
}
}
void parseLang() {
if (next() != SEPARATOR)
error("Expecting '.'");
switch (next() ) {
case LIBS:
parseLibs();
break;
case NAME:
confDat->langName = parseName();
break;
case OPT1:
parseOptionList(confDat->opts[CompilerDriver::OPT_FAST_COMPILE]);
break;
case OPT2:
parseOptionList(confDat->opts[CompilerDriver::OPT_SIMPLE]);
break;
case OPT3:
parseOptionList(confDat->opts[CompilerDriver::OPT_AGGRESSIVE]);
break;
case OPT4:
parseOptionList(confDat->opts[CompilerDriver::OPT_LINK_TIME]);
break;
case OPT5:
parseOptionList(
confDat->opts[CompilerDriver::OPT_AGGRESSIVE_LINK_TIME]);
break;
default:
error("Expecting 'name' or 'optN' after 'lang.'");
break;
}
}
bool parseProgramName(std::string& str) {
str.clear();
do {
switch (token) {
case BINDIR_SUBST:
case LLVMGCC_SUBST:
case LLVMGXX_SUBST:
case LLVMCC1_SUBST:
case LLVMCC1PLUS_SUBST:
case OPTION:
case STRING:
case ARGS_SUBST:
case DEFS_SUBST:
case IN_SUBST:
case INCLS_SUBST:
case LIBS_SUBST:
case OPT_SUBST:
case OUT_SUBST:
case STATS_SUBST:
case TARGET_SUBST:
case TIME_SUBST:
case VERBOSE_SUBST:
case FOPTS_SUBST:
case MOPTS_SUBST:
case WOPTS_SUBST:
str += ConfigLexerState.StringVal;
break;
case SEPARATOR:
str += ".";
break;
case ASSEMBLY:
str += "assembly";
break;
case BITCODE:
str += "bitcode";
break;
case TRUETOK:
str += "true";
break;
case FALSETOK:
str += "false";
break;
default:
break;
}
next();
} while (token != SPACE && token != EOFTOK && token != EOLTOK &&
token != ERRORTOK);
return !str.empty();
}
void parseCommand(CompilerDriver::Action& action) {
if (next() != EQUALS)
error("Expecting '='");
switch (next()) {
case EOLTOK:
// no value (valid)
action.program.clear();
action.args.clear();
break;
case SPACE:
next();
/* FALL THROUGH */
default:
{
std::string progname;
if (parseProgramName(progname))
action.program.set(progname);
else
error("Expecting a program name");
// Get the options
std::string anOption;
while (next_is_real()) {
switch (token) {
case STRING:
case OPTION:
anOption += ConfigLexerState.StringVal;
break;
case ASSEMBLY:
anOption += "assembly";
break;
case BITCODE:
anOption += "bitcode";
break;
case TRUETOK:
anOption += "true";
break;
case FALSETOK:
anOption += "false";
break;
case SEPARATOR:
anOption += ".";
break;
case SPACE:
action.args.push_back(anOption);
anOption.clear();
break;
default:
if (!parseSubstitution(action.args))
error("Expecting a program argument or substitution", false);
break;
}
}
}
}
}
void parsePreprocessor() {
if (next() != SEPARATOR)
error("Expecting '.'");
switch (next()) {
case COMMAND:
parseCommand(confDat->PreProcessor);
break;
case REQUIRED:
if (parseBoolean())
confDat->PreProcessor.set(CompilerDriver::REQUIRED_FLAG);
else
confDat->PreProcessor.clear(CompilerDriver::REQUIRED_FLAG);
break;
default:
error("Expecting 'command' or 'required' but found '" +
ConfigLexerState.StringVal);
break;
}
}
bool parseOutputFlag() {
if (next() == EQUALS) {
if (next() == SPACE)
next();
if (token == ASSEMBLY) {
return true;
} else if (token == BITCODE) {
return false;
} else {
error("Expecting output type value");
return false;
}
if (next() != EOLTOK && token != 0) {
error("Extraneous tokens after output value");
}
}
else
error("Expecting '='");
return false;
}
void parseTranslator() {
if (next() != SEPARATOR)
error("Expecting '.'");
switch (next()) {
case COMMAND:
parseCommand(confDat->Translator);
break;
case REQUIRED:
if (parseBoolean())
confDat->Translator.set(CompilerDriver::REQUIRED_FLAG);
else
confDat->Translator.clear(CompilerDriver::REQUIRED_FLAG);
break;
case PREPROCESSES:
if (parseBoolean())
confDat->Translator.set(CompilerDriver::PREPROCESSES_FLAG);
else
confDat->Translator.clear(CompilerDriver::PREPROCESSES_FLAG);
break;
case OUTPUT:
if (parseOutputFlag())
confDat->Translator.set(CompilerDriver::OUTPUT_IS_ASM_FLAG);
else
confDat->Translator.clear(CompilerDriver::OUTPUT_IS_ASM_FLAG);
break;
default:
error("Expecting 'command', 'required', 'preprocesses', or "
"'output' but found '" + ConfigLexerState.StringVal +
"' instead");
break;
}
}
void parseOptimizer() {
if (next() != SEPARATOR)
error("Expecting '.'");
switch (next()) {
case COMMAND:
parseCommand(confDat->Optimizer);
break;
case PREPROCESSES:
if (parseBoolean())
confDat->Optimizer.set(CompilerDriver::PREPROCESSES_FLAG);
else
confDat->Optimizer.clear(CompilerDriver::PREPROCESSES_FLAG);
break;
case TRANSLATES:
if (parseBoolean())
confDat->Optimizer.set(CompilerDriver::TRANSLATES_FLAG);
else
confDat->Optimizer.clear(CompilerDriver::TRANSLATES_FLAG);
break;
case REQUIRED:
if (parseBoolean())
confDat->Optimizer.set(CompilerDriver::REQUIRED_FLAG);
else
confDat->Optimizer.clear(CompilerDriver::REQUIRED_FLAG);
break;
case OUTPUT:
if (parseOutputFlag())
confDat->Translator.set(CompilerDriver::OUTPUT_IS_ASM_FLAG);
else
confDat->Translator.clear(CompilerDriver::OUTPUT_IS_ASM_FLAG);
break;
default:
error(std::string("Expecting 'command', 'preprocesses', "
"'translates' or 'output' but found '") +
ConfigLexerState.StringVal + "' instead");
break;
}
}
void parseAssembler() {
if (next() != SEPARATOR)
error("Expecting '.'");
switch(next()) {
case COMMAND:
parseCommand(confDat->Assembler);
break;
default:
error("Expecting 'command'");
break;
}
}
void parseLinker() {
if (next() != SEPARATOR)
error("Expecting '.'");
switch(next()) {
case LIBS:
break; //FIXME
case LIBPATHS:
break; //FIXME
default:
error("Expecting 'libs' or 'libpaths'");
break;
}
}
void parseAssignment() {
switch (token) {
case VERSION_TOK: parseVersion(); break;
case LANG: parseLang(); break;
case PREPROCESSOR: parsePreprocessor(); break;
case TRANSLATOR: parseTranslator(); break;
case OPTIMIZER: parseOptimizer(); break;
case ASSEMBLER: parseAssembler(); break;
case LINKER: parseLinker(); break;
case EOLTOK: break; // just ignore
case ERRORTOK:
default:
error("Invalid top level configuration item");
break;
}
}
void parseFile() {
while ( next() != EOFTOK ) {
if (token == ERRORTOK)
error("Invalid token");
else if (token != EOLTOK)
parseAssignment();
}
provider->checkErrors();
}
};
void
ParseConfigData(InputProvider& provider, CompilerDriver::ConfigData& confDat) {
Parser p;
p.token = EOFTOK;
p.provider = &provider;
p.confDat = &confDat;
p.parseFile();
}
}
CompilerDriver::ConfigData*
LLVMC_ConfigDataProvider::ReadConfigData(const std::string& ftype) {
CompilerDriver::ConfigData* result = 0;
sys::Path confFile;
if (configDir.isEmpty()) {
// Try the environment variable
const char* conf = getenv("LLVM_CONFIG_DIR");
if (conf) {
confFile.set(conf);
confFile.appendComponent(ftype);
if (!confFile.canRead())
throw std::string("Configuration file for '") + ftype +
"' is not available.";
} else {
// Try the user's home directory
confFile = sys::Path::GetUserHomeDirectory();
if (!confFile.isEmpty()) {
confFile.appendComponent(".llvm");
confFile.appendComponent("etc");
confFile.appendComponent(ftype);
if (!confFile.canRead())
confFile.clear();
}
if (confFile.isEmpty()) {
// Okay, try the LLVM installation directory
confFile = sys::Path::GetLLVMConfigDir();
confFile.appendComponent(ftype);
if (!confFile.canRead()) {
// Okay, try the "standard" place
confFile = sys::Path::GetLLVMDefaultConfigDir();
confFile.appendComponent(ftype);
if (!confFile.canRead()) {
throw std::string("Configuration file for '") + ftype +
"' is not available.";
}
}
}
}
} else {
confFile = configDir;
confFile.appendComponent(ftype);
if (!confFile.canRead())
throw std::string("Configuration file for '") + ftype +
"' is not available.";
}
FileInputProvider fip( confFile.toString() );
if (!fip.okay()) {
throw std::string("Configuration file for '") + ftype +
"' is not available.";
}
result = new CompilerDriver::ConfigData();
ParseConfigData(fip,*result);
return result;
}
LLVMC_ConfigDataProvider::~LLVMC_ConfigDataProvider()
{
ConfigDataMap::iterator cIt = Configurations.begin();
while (cIt != Configurations.end()) {
CompilerDriver::ConfigData* cd = cIt->second;
++cIt;
delete cd;
}
}
CompilerDriver::ConfigData*
LLVMC_ConfigDataProvider::ProvideConfigData(const std::string& filetype) {
CompilerDriver::ConfigData* result = 0;
if (!Configurations.empty()) {
ConfigDataMap::iterator cIt = Configurations.find(filetype);
if ( cIt != Configurations.end() ) {
// We found one in the case, return it.
result = cIt->second;
}
}
if (result == 0) {
// The configuration data doesn't exist, we have to go read it.
result = ReadConfigData(filetype);
// If we got one, cache it
if (result != 0)
Configurations[filetype] = result;
}
return result; // Might return 0
}

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//===- Configuration.h - Configuration Data Mgmt ----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the LLVMC_ConfigDataProvider class which implements the
// generation of ConfigData objects for the CompilerDriver.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVMC_CONFIGDATA_H
#define LLVM_TOOLS_LLVMC_CONFIGDATA_H
#include "llvm/ADT/StringMap.h"
#include "CompilerDriver.h"
namespace llvm {
/// This class provides the high level interface to the LLVM Compiler Driver.
/// The driver's purpose is to make it easier for compiler writers and users
/// of LLVM to utilize the compiler toolkits and LLVM toolset by learning only
/// the interface of one program (llvmc).
///
/// @see llvmc.cpp
/// @brief The interface to the LLVM Compiler Driver.
class LLVMC_ConfigDataProvider : public CompilerDriver::ConfigDataProvider {
/// @name Constructor
/// @{
public:
virtual ~LLVMC_ConfigDataProvider();
/// @name Methods
/// @{
public:
/// @brief Provide the configuration data to the CompilerDriver.
virtual CompilerDriver::ConfigData*
ProvideConfigData(const std::string& filetype);
/// @brief Allow the configuration directory to be set
virtual void setConfigDir(const sys::Path& dirName) {
configDir = dirName;
}
private:
CompilerDriver::ConfigData* ReadConfigData(const std::string& ftype);
/// @}
/// @name Data
/// @{
private:
/// @brief This type is used internally to hold the configuration data.
typedef StringMap<CompilerDriver::ConfigData*> ConfigDataMap;
ConfigDataMap Configurations; ///< The cache of configurations
sys::Path configDir;
/// @}
};
}
#endif

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LLVM Compiler Driver (llvmc)
-------------------------------------------------------------------------------
The LLVM Compiler Driver (llvmc) is licensed under the Illinois Open Source
License and has the following additional copyright:
Copyright (C) 2004 eXtensible Systems, Inc.

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tools/llvmc/Makefile
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##===- tools/llvmc/Makefile --------------------------------*- Makefile -*-===##
#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
##===----------------------------------------------------------------------===##
LEVEL = ../..
TOOLNAME = llvmc
LINK_COMPONENTS = support system core bitreader
CONFIG_FILES = c cpp ll st
EXTRA_DIST = c cpp ll ConfigLexer.cpp.cvs ConfigLexer.l.cvs
REQUIRES_EH := 1
# The CompilerDriver needs to know the locations of several configured
# directories and paths. We define these as preprocessor symbols so they can
# be hard coded into the process based on the configuration. Only those
# configuration values not available in llvm/include/Config/config.h need to be
# specified here. These values are used as the replacements for the
# configuration file substitution variables such as %llvmgccdir%
CPPFLAGS = -DLLVMGCCDIR="\"$(LLVMGCCDIR)\"" \
-DLLVMGCCARCH="\"$(LLVMGCCARCH)\"" \
-DLLVMGCC="\"$(LLVMGCC)\"" \
-DLLVMGXX="\"$(LLVMGXX)\"" \
-DLLVMCC1="\"$(LLVMCC1)\"" \
-DLLVMCC1PLUS="\"$(LLVMCC1PLUS)\""
include $(LEVEL)/Makefile.common
install::
$(Echo) Installing additional C++ configuration clones
$(Verb)$(DataInstall) $(PROJ_SRC_DIR)/cpp $(PROJ_etcdir)/c++
$(Verb)$(DataInstall) $(PROJ_SRC_DIR)/cpp $(PROJ_etcdir)/cxx

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tools/llvmc/c
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# C configuration file for llvmc
##########################################################
# Language definitions
##########################################################
lang.name=C
lang.opt1=-O1
lang.opt2=-O2
lang.opt3=-O3
lang.opt4=-O3
lang.opt5=-O3
lang.libs=%llvmgccdir%/lib %llvmgccdir%/lib %llvmgccdir%/lib/gcc/%llvmgccarch%
##########################################################
# Pre-processor definitions
##########################################################
# We use gcc as our pre-processor
preprocessor.command=gcc -E %in% -o %out% %incls% %defs%
preprocessor.required=true
##########################################################
# Translator definitions
##########################################################
# To compile C source, just use llvm-gcc's cc1
translator.command=%llvmcc1% -quiet %in% -o %out% \
%opt% %incls% %defs% %WOpts% %fOpts% %MOpts% %args% \
-D_GNU_SOURCE
# llvm-gcc does not pre-process
translator.preprocesses=false
# The translator is required to run.
translator.required=true
# Output of the translator is assembly
translator.output=assembly
##########################################################
# Optimizer definitions
##########################################################
# Use gccas to clean up the generated code
optimizer.command=%bindir%/gccas %in% -o %out% %args%
optimizer.required = true
# gccas doesn't translate
optimizer.translates = false
# gccas doesn't preprocess
optimizer.preprocesses=false
# gccas produces bytecode
optimizer.output = bytecode
##########################################################
# Assembler definitions
##########################################################
assembler.command=%bindir%/llc %in% -o %out% %target% %time% %stats%

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# C++ configuration file for llvmc
##########################################################
# Language definitions
##########################################################
lang.name=C++
lang.opt1=-O1
lang.opt2=-O2
lang.opt3=-O3
lang.opt4=-O3
lang.opt5=-O3
lang.libs=%llvmgccdir%/lib %llvmgccdir%/lib \
%llvmgccdir%/lib/gcc/%llvmgccarch%
##########################################################
# Pre-processor definitions
##########################################################
# We use g++ as our pre-processor
preprocessor.command=g++ -E %in% -o %out% %incls% %defs%
preprocessor.required=true
##########################################################
# Translator definitions
##########################################################
# To compile C++ source, just use llvm-g++'s cc1
translator.command=%llvmcc1plus% -quiet %in% -o %out% \
%opt% %incls% %defs% %WOpts% %fOpts% %MOpts% %args% \
-D_GNU_SOURCE
# llvm-g++ does not pre-process
translator.preprocesses=false
# The translator is required to run.
translator.required=true
# Output of translator is assembly
translator.output=assembly
##########################################################
# Optimizer definitions
##########################################################
# Use gccas to clean up the generated code
optimizer.command=%bindir%/gccas %in% -o %out% %args%
optimizer.required = true
# gccas doesn't translate
optimizer.translates = false
# gccas doesn't preprocess
optimizer.preprocesses=false
# gccas produces bytecode
optimizer.output = bytecode
##########################################################
# Assembler definitions
##########################################################
assembler.command=%bindir%/llc %in% -o %out% %target% %time% %stats%

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tools/llvmc/ll
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# LLVM Assembly Config File For llvmc
version="1.0"
lang.name=LLVM Assembly
preprocessor.command=
preprocessor.required=false
translator.command=%bindir%/llvm-as %in% -o %out%
translator.preprocesses=true
translator.required=TRUE
optimizer.command=%bindir%/opt %in% -o %out% %opt% %args%
optimizer.translates=no
assembler.command=%bindir%/llc %in% -o %out%

374
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//===--- llvmc.cpp - The LLVM Compiler Driver -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This tool provides a single point of access to the LLVM compilation tools.
// It has many options. To discover the options supported please refer to the
// tools' manual page (docs/CommandGuide/html/llvmc.html) or run the tool with
// the --help option.
//
//===----------------------------------------------------------------------===//
#include "CompilerDriver.h"
#include "Configuration.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/System/Signals.h"
#include <iostream>
#include <cstring>
using namespace llvm;
//===----------------------------------------------------------------------===//
//=== PHASE OPTIONS
//===----------------------------------------------------------------------===//
static cl::opt<CompilerDriver::Phases> FinalPhase(cl::Optional,
cl::desc("Choose final phase of compilation:"),
cl::init(CompilerDriver::LINKING),
cl::values(
clEnumValN(CompilerDriver::PREPROCESSING,"E",
"Stop compilation after pre-processing phase"),
clEnumValN(CompilerDriver::TRANSLATION, "t",
"Stop compilation after translation phase"),
clEnumValN(CompilerDriver::OPTIMIZATION,"c",
"Stop compilation after optimization phase"),
clEnumValN(CompilerDriver::ASSEMBLY,"S",
"Stop compilation after assembly phase"),
clEnumValEnd
)
);
//===----------------------------------------------------------------------===//
//=== OPTIMIZATION OPTIONS
//===----------------------------------------------------------------------===//
static cl::opt<CompilerDriver::OptimizationLevels> OptLevel(cl::ZeroOrMore,
cl::desc("Choose level of optimization to apply:"),
cl::init(CompilerDriver::OPT_FAST_COMPILE),
cl::values(
clEnumValN(CompilerDriver::OPT_FAST_COMPILE,"O0",
"An alias for the -O1 option"),
clEnumValN(CompilerDriver::OPT_FAST_COMPILE,"O1",
"Optimize for compilation speed, not execution speed"),
clEnumValN(CompilerDriver::OPT_SIMPLE,"O2",
"Perform simple translation time optimizations"),
clEnumValN(CompilerDriver::OPT_AGGRESSIVE,"O3",
"Perform aggressive translation time optimizations"),
clEnumValN(CompilerDriver::OPT_LINK_TIME,"O4",
"Perform link time optimizations"),
clEnumValN(CompilerDriver::OPT_AGGRESSIVE_LINK_TIME,"O5",
"Perform aggressive link time optimizations"),
clEnumValEnd
)
);
//===----------------------------------------------------------------------===//
//=== TOOL OPTIONS
//===----------------------------------------------------------------------===//
static cl::list<std::string> PreprocessorToolOpts("Tpre", cl::ZeroOrMore,
cl::desc("Pass specific options to the pre-processor"),
cl::value_desc("option"));
static cl::alias PreprocessorToolOptsAlias("Wp,", cl::ZeroOrMore,
cl::desc("Alias for -Tpre"), cl::aliasopt(PreprocessorToolOpts));
static cl::list<std::string> TranslatorToolOpts("Ttrn", cl::ZeroOrMore,
cl::desc("Pass specific options to the assembler"),
cl::value_desc("option"));
static cl::list<std::string> AssemblerToolOpts("Tasm", cl::ZeroOrMore,
cl::desc("Pass specific options to the assembler"),
cl::value_desc("option"));
static cl::alias AssemblerToolOptsAlias("Wa,", cl::ZeroOrMore,
cl::desc("Alias for -Tasm"), cl::aliasopt(AssemblerToolOpts));
static cl::list<std::string> OptimizerToolOpts("Topt", cl::ZeroOrMore,
cl::desc("Pass specific options to the optimizer"),
cl::value_desc("option"));
static cl::list<std::string> LinkerToolOpts("Tlnk", cl::ZeroOrMore,
cl::desc("Pass specific options to the linker"),
cl::value_desc("option"));
static cl::alias LinkerToolOptsAlias("Wl,", cl::ZeroOrMore,
cl::desc("Alias for -Tlnk"), cl::aliasopt(LinkerToolOpts));
static cl::list<std::string> fOpts("f", cl::ZeroOrMore, cl::Prefix,
cl::desc("Pass through -f options to compiler tools"),
cl::value_desc("option"));
static cl::list<std::string> MOpts("M", cl::ZeroOrMore, cl::Prefix,
cl::desc("Pass through -M options to compiler tools"),
cl::value_desc("option"));
static cl::list<std::string> WOpts("W", cl::ZeroOrMore, cl::Prefix,
cl::desc("Pass through -W options to compiler tools"),
cl::value_desc("option"));
static cl::list<std::string> BOpt("B", cl::ZeroOrMore, cl::Prefix,
cl::desc("Specify path to find llvmc sub-tools"),
cl::value_desc("dir"));
//===----------------------------------------------------------------------===//
//=== INPUT OPTIONS
//===----------------------------------------------------------------------===//
static cl::list<std::string> LibPaths("L", cl::Prefix,
cl::desc("Specify a library search path"), cl::value_desc("dir"));
static cl::list<std::string> Libraries("l", cl::Prefix,
cl::desc("Specify base name of libraries to link to"), cl::value_desc("lib"));
static cl::list<std::string> Includes("I", cl::Prefix,
cl::desc("Specify location to search for included source"),
cl::value_desc("dir"));
static cl::list<std::string> Defines("D", cl::Prefix,
cl::desc("Specify a pre-processor symbol to define"),
cl::value_desc("symbol"));
//===----------------------------------------------------------------------===//
//=== OUTPUT OPTIONS
//===----------------------------------------------------------------------===//
static cl::opt<std::string> OutputFilename("o",
cl::desc("Override output filename"), cl::value_desc("file"));
static cl::opt<std::string> OutputMachine("m", cl::Prefix,
cl::desc("Specify a target machine"), cl::value_desc("machine"));
static cl::opt<bool> Native("native", cl::init(false),
cl::desc("Generative native code instead of bitcode"));
static cl::opt<bool> DebugOutput("g", cl::init(false),
cl::desc("Generate objects that include debug symbols"));
static cl::opt<bool> StripOutput("strip", cl::init(false),
cl::desc("Strip all symbols from linked output file"));
static cl::opt<std::string> PrintFileName("print-fname", cl::Optional,
cl::value_desc("file"),
cl::desc("Print the full path for the option's value"));
//===----------------------------------------------------------------------===//
//=== INFORMATION OPTIONS
//===----------------------------------------------------------------------===//
static cl::opt<bool> DryRun("dry-run", cl::Optional, cl::init(false),
cl::desc("Do everything but perform the compilation actions"));
static cl::alias DryRunAlias("y", cl::Optional,
cl::desc("Alias for -dry-run"), cl::aliasopt(DryRun));
static cl::opt<bool> Verbose("verbose", cl::Optional, cl::init(false),
cl::desc("Print out each action taken"));
static cl::alias VerboseAlias("v", cl::Optional,
cl::desc("Alias for -verbose"), cl::aliasopt(Verbose));
static cl::opt<bool> Debug("debug", cl::Optional, cl::init(false),
cl::Hidden, cl::desc("Print out debugging information"));
static cl::alias DebugAlias("d", cl::Optional,
cl::desc("Alias for -debug"), cl::aliasopt(Debug));
static cl::opt<bool> TimeActions("time-actions", cl::Optional, cl::init(false),
cl::desc("Print execution time for each action taken"));
static cl::opt<bool> ShowStats("stats", cl::Optional, cl::init(false),
cl::desc("Print statistics accumulated during optimization"));
//===----------------------------------------------------------------------===//
//=== ADVANCED OPTIONS
//===----------------------------------------------------------------------===//
static cl::opt<std::string> ConfigDir("config-dir", cl::Optional,
cl::desc("Specify configuration directory to override defaults"),
cl::value_desc("dir"));
static cl::opt<bool> EmitRawCode("emit-raw-code", cl::Hidden, cl::Optional,
cl::desc("Emit raw, unoptimized code"));
static cl::opt<bool> PipeCommands("pipe", cl::Optional,
cl::desc("Invoke sub-commands by linking input/output with pipes"));
static cl::opt<bool> KeepTemps("keep-temps", cl::Optional,
cl::desc("Don't delete temporary files created by llvmc"));
//===----------------------------------------------------------------------===//
//=== POSITIONAL OPTIONS
//===----------------------------------------------------------------------===//
static cl::list<std::string> Files(cl::Positional, cl::ZeroOrMore,
cl::desc("[Sources/objects/libraries]"));
static cl::list<std::string> Languages("x", cl::ZeroOrMore,
cl::desc("Specify the source language for subsequent files"),
cl::value_desc("language"));
//===----------------------------------------------------------------------===//
//=== GetFileType - determine type of a file
//===----------------------------------------------------------------------===//
static const std::string GetFileType(const std::string& fname, unsigned pos) {
static std::vector<std::string>::iterator langIt = Languages.begin();
static std::string CurrLang = "";
// If a -x LANG option has been specified ..
if (langIt != Languages.end())
// If the -x LANG option came before the current file on command line
if (Languages.getPosition( langIt - Languages.begin() ) < pos) {
// use that language
CurrLang = *langIt++;
return CurrLang;
}
// If there's a current language in effect
if (!CurrLang.empty())
return CurrLang; // use that language
// otherwise just determine lang from the filename's suffix
return fname.substr(fname.rfind('.', fname.size()) + 1);
}
static void handleTerminatingOptions(CompilerDriver* CD) {
if (!PrintFileName.empty()) {
sys::Path path = CD->GetPathForLinkageItem(PrintFileName, false);
std::string p = path.toString();
if (p.empty())
std::cout << "Can't locate `" << PrintFileName << "'.\n";
else
std::cout << p << '\n';
exit(0);
}
}
/// @brief The main program for llvmc
int main(int argc, char **argv) {
llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
// Make sure we print stack trace if we get bad signals
sys::PrintStackTraceOnErrorSignal();
std::cout << "NOTE: llvmc is highly experimental and mostly useless right "
"now.\nPlease use llvm-gcc directly instead.\n\n";
try {
// Parse the command line options
cl::ParseCommandLineOptions(argc, argv,
"LLVM Compiler Driver (llvmc)\n\n"
" This program provides easy invocation of the LLVM tool set\n"
" and other compiler tools.\n"
);
// Deal with unimplemented options.
if (PipeCommands)
throw std::string("Not implemented yet: -pipe");
if (OutputFilename.empty())
if (OptLevel == CompilerDriver::LINKING)
OutputFilename = "a.out";
// Construct the ConfigDataProvider object
LLVMC_ConfigDataProvider Provider;
Provider.setConfigDir(sys::Path(ConfigDir));
// Construct the CompilerDriver object
CompilerDriver* CD = CompilerDriver::Get(Provider);
// If the LLVM_LIB_SEARCH_PATH environment variable is
// set, append it to the list of places to search for libraries
char *srchPath = getenv("LLVM_LIB_SEARCH_PATH");
if (srchPath != NULL && strlen(srchPath) != 0)
LibPaths.push_back(std::string(srchPath));
// Set the driver flags based on command line options
unsigned flags = 0;
if (Verbose) flags |= CompilerDriver::VERBOSE_FLAG;
if (Debug) flags |= CompilerDriver::DEBUG_FLAG;
if (DryRun) flags |= CompilerDriver::DRY_RUN_FLAG;
if (Native) flags |= CompilerDriver::EMIT_NATIVE_FLAG;
if (EmitRawCode) flags |= CompilerDriver::EMIT_RAW_FLAG;
if (KeepTemps) flags |= CompilerDriver::KEEP_TEMPS_FLAG;
if (ShowStats) flags |= CompilerDriver::SHOW_STATS_FLAG;
if (TimeActions) flags |= CompilerDriver::TIME_ACTIONS_FLAG;
if (StripOutput) flags |= CompilerDriver::STRIP_OUTPUT_FLAG;
CD->setDriverFlags(flags);
// Specify required parameters
CD->setFinalPhase(FinalPhase);
CD->setOptimization(OptLevel);
CD->setOutputMachine(OutputMachine);
CD->setIncludePaths(Includes);
CD->setSymbolDefines(Defines);
CD->setLibraryPaths(LibPaths);
CD->setfPassThrough(fOpts);
CD->setMPassThrough(MOpts);
CD->setWPassThrough(WOpts);
// Provide additional tool arguments
if (!PreprocessorToolOpts.empty())
CD->setPhaseArgs(CompilerDriver::PREPROCESSING, PreprocessorToolOpts);
if (!TranslatorToolOpts.empty())
CD->setPhaseArgs(CompilerDriver::TRANSLATION, TranslatorToolOpts);
if (!OptimizerToolOpts.empty())
CD->setPhaseArgs(CompilerDriver::OPTIMIZATION, OptimizerToolOpts);
if (!AssemblerToolOpts.empty())
CD->setPhaseArgs(CompilerDriver::ASSEMBLY,AssemblerToolOpts);
if (!LinkerToolOpts.empty())
CD->setPhaseArgs(CompilerDriver::LINKING, LinkerToolOpts);
// Check for options that cause us to terminate before any significant work
// is done.
handleTerminatingOptions(CD);
// Prepare the list of files to be compiled by the CompilerDriver.
CompilerDriver::InputList InpList;
std::vector<std::string>::iterator fileIt = Files.begin();
std::vector<std::string>::iterator libIt = Libraries.begin();
unsigned libPos = 0, filePos = 0;
while ( 1 ) {
if (libIt != Libraries.end())
libPos = Libraries.getPosition( libIt - Libraries.begin() );
else
libPos = 0;
if (fileIt != Files.end())
filePos = Files.getPosition(fileIt - Files.begin());
else
filePos = 0;
if (filePos != 0 && (libPos == 0 || filePos < libPos)) {
// Add a source file
InpList.push_back(std::make_pair(*fileIt,
GetFileType(*fileIt, filePos)));
++fileIt;
} else if ( libPos != 0 && (filePos == 0 || libPos < filePos) ) {
// Add a library
InpList.push_back(std::make_pair(*libIt++, ""));
}
else
break; // we're done with the list
}
// Tell the driver to do its thing
std::string ErrMsg;
int result = CD->execute(InpList, sys::Path(OutputFilename), ErrMsg);
if (result != 0) {
std::cerr << argv[0] << ": " << ErrMsg << '\n';
return result;
}
// All is good, return success
return 0;
} catch (const std::string& msg) {
std::cerr << argv[0] << ": " << msg << '\n';
} catch (...) {
std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
}
return 1;
}

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# Stacker Configuration File For llvmc
##########################################################
# Language definitions
##########################################################
lang.name=Stacker
lang.opt1=-O1
lang.opt2=-O2
lang.opt3=-O3
lang.opt4=-O4
lang.opt5=-O5
##########################################################
# Pre-processor definitions
##########################################################
# Stacker doesn't have a preprocessor but the following
# allows the -E option to be supported
preprocessor.command=cp %in% %out%
preprocessor.required=false
##########################################################
# Translator definitions
##########################################################
# To compile stacker source, we just run the stacker
# compiler with a default stack size of 2048 entries.
translator.command=stkrc -s 2048 %in% -f -o %out% %opt% \
%time% %stats% %args%
# stkrc doesn't preprocess but we set this to true so
# that we don't run the cp command by default.
translator.preprocesses=true
# The translator is required to run.
translator.required=false
# stkrc doesn't handle the -On options
translator.output=bytecode
##########################################################
# Optimizer definitions
##########################################################
# For optimization, we use the LLVM "opt" program
optimizer.command=stkrc -s 2048 %in% -f -o %out% %opt% \
%time% %stats% %args%
optimizer.required = yes
# opt doesn't translate
optimizer.translates = yes
# opt doesn't preprocess
optimizer.preprocesses=yes
# opt produces bytecode
optimizer.output = bc
##########################################################
# Assembler definitions
##########################################################
assembler.command=llc %in% -o %out% %target% %time% %stats%