It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvmc/CompilerDriver.h b/tools/llvmc/CompilerDriver.h
new file mode 100644
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--- /dev/null
+++ b/tools/llvmc/CompilerDriver.h
@@ -0,0 +1,206 @@
+//===- CompilerDriver.h - Compiler Driver -----------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and 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