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

4 files changed, 276 insertions, 0 deletions

diff --git a/include/llvm/Assembly/AsmAnnotationWriter.h b/include/llvm/Assembly/AsmAnnotationWriter.h
new file mode 100644
index 0000000..9ed285a
--- /dev/null
+++ b/include/llvm/Assembly/AsmAnnotationWriter.h
@@ -0,0 +1,53 @@
+//===-- AsmAnnotationWriter.h - Itf for annotation .ll files - --*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Clients of the assembly writer can use this interface to add their own
+// special-purpose annotations to LLVM assembly language printouts.  Note that
+// the assembly parser won't be able to parse these, in general, so
+// implementations are advised to print stuff as LLVM comments.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ASSEMBLY_ASMANNOTATIONWRITER_H
+#define LLVM_ASSEMBLY_ASMANNOTATIONWRITER_H
+
+#include <iosfwd>
+
+namespace llvm {
+
+class Function;
+class BasicBlock;
+class Instruction;
+
+struct AssemblyAnnotationWriter {
+
+  virtual ~AssemblyAnnotationWriter();
+
+  // emitFunctionAnnot - This may be implemented to emit a string right before
+  // the start of a function.
+  virtual void emitFunctionAnnot(const Function *F, std::ostream &OS) {}
+
+  // emitBasicBlockStartAnnot - This may be implemented to emit a string right
+  // after the basic block label, but before the first instruction in the block.
+  virtual void emitBasicBlockStartAnnot(const BasicBlock *BB, std::ostream &OS){
+  }
+
+  // emitBasicBlockEndAnnot - This may be implemented to emit a string right
+  // after the basic block.
+  virtual void emitBasicBlockEndAnnot(const BasicBlock *BB, std::ostream &OS){
+  }
+
+  // emitInstructionAnnot - This may be implemented to emit a string right
+  // before an instruction is emitted.
+  virtual void emitInstructionAnnot(const Instruction *I, std::ostream &OS) {}
+};
+
+} // End llvm namespace
+
+#endif
diff --git a/include/llvm/Assembly/Parser.h b/include/llvm/Assembly/Parser.h
new file mode 100644
index 0000000..bc7995e
--- /dev/null
+++ b/include/llvm/Assembly/Parser.h
@@ -0,0 +1,97 @@
+//===-- llvm/Assembly/Parser.h - Parser for VM assembly files ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  These classes are implemented by the lib/AsmParser library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ASSEMBLY_PARSER_H
+#define LLVM_ASSEMBLY_PARSER_H
+
+#include <string>
+
+namespace llvm {
+
+class Module;
+class ParseError;
+
+
+/// This function is the main interface to the LLVM Assembly Parse. It parses 
+/// an ascii file that (presumably) contains LLVM Assembly code. It returns a
+/// Module (intermediate representation) with the corresponding features. Note
+/// that this does not verify that the generated Module is valid, so you should
+/// run the verifier after parsing the file to check that it is okay.
+/// @brief Parse LLVM Assembly from a file
+Module *ParseAssemblyFile(
+  const std::string &Filename, ///< The name of the file to parse
+  ParseError* Error = 0        ///< If not null, an object to return errors in.
+);
+
+/// The function is a secondary interface to the LLVM Assembly Parse. It parses 
+/// an ascii string that (presumably) contains LLVM Assembly code. It returns a
+/// Module (intermediate representation) with the corresponding features. Note
+/// that this does not verify that the generated Module is valid, so you should
+/// run the verifier after parsing the file to check that it is okay.
+/// @brief Parse LLVM Assembly from a string
+Module *ParseAssemblyString(
+  const char * AsmString, ///< The string containing assembly
+  Module * M,             ///< A module to add the assembly too.
+  ParseError* Error = 0   ///< If not null, an object to return errors in.
+);
+
+//===------------------------------------------------------------------------===
+//                              Helper Classes
+//===------------------------------------------------------------------------===
+
+/// An instance of this class can be passed to ParseAssemblyFile or 
+/// ParseAssemblyString functions in order to capture error information from
+/// the parser.  It provides a standard way to print out the error message
+/// including the file name and line number where the error occurred.
+/// @brief An LLVM Assembly Parsing Error Object
+class ParseError {
+public:
+  ParseError() : Filename("unknown"), Message("none"), LineNo(0), ColumnNo(0) {}
+  ParseError(const ParseError &E);
+
+  // getMessage - Return the message passed in at construction time plus extra
+  // information extracted from the options used to parse with...
+  //
+  const std::string getMessage() const;
+
+  inline const std::string &getRawMessage() const {   // Just the raw message...
+    return Message;
+  }
+
+  inline const std::string &getFilename() const {
+    return Filename;
+  }
+
+  void setError(const std::string &filename, const std::string &message,
+                 int LineNo = -1, int ColNo = -1);
+
+  // getErrorLocation - Return the line and column number of the error in the
+  // input source file.  The source filename can be derived from the
+  // ParserOptions in effect.  If positional information is not applicable,
+  // these will return a value of -1.
+  //
+  inline const void getErrorLocation(int &Line, int &Column) const {
+    Line = LineNo; Column = ColumnNo;
+  }
+
+private :
+  std::string Filename;
+  std::string Message;
+  int LineNo, ColumnNo;                               // -1 if not relevant
+
+  ParseError &operator=(const ParseError &E); // objects by reference
+};
+
+} // End llvm namespace
+
+#endif
diff --git a/include/llvm/Assembly/PrintModulePass.h b/include/llvm/Assembly/PrintModulePass.h
new file mode 100644
index 0000000..0f65235
--- /dev/null
+++ b/include/llvm/Assembly/PrintModulePass.h
@@ -0,0 +1,81 @@
+//===- llvm/Assembly/PrintModulePass.h - Printing Pass ----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines two passes to print out a module.  The PrintModulePass pass
+// simply prints out the entire module when it is executed.  The
+// PrintFunctionPass class is designed to be pipelined with other
+// FunctionPass's, and prints out the functions of the class as they are
+// processed.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ASSEMBLY_PRINTMODULEPASS_H
+#define LLVM_ASSEMBLY_PRINTMODULEPASS_H
+
+#include "llvm/Pass.h"
+#include "llvm/Module.h"
+#include "llvm/Support/Streams.h"
+
+namespace llvm {
+
+class PrintModulePass : public ModulePass {
+  OStream *Out;           // ostream to print on
+  bool DeleteStream;      // Delete the ostream in our dtor?
+public:
+  static char ID;
+  PrintModulePass() : ModulePass((intptr_t)&ID), Out(&cerr), DeleteStream(false) {}
+  PrintModulePass(OStream *o, bool DS = false)
+    : ModulePass((intptr_t)&ID), Out(o), DeleteStream(DS) {}
+
+  ~PrintModulePass() {
+    if (DeleteStream) delete Out;
+  }
+
+  bool runOnModule(Module &M) {
+    (*Out) << M << std::flush;
+    return false;
+  }
+
+  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesAll();
+  }
+};
+
+class PrintFunctionPass : public FunctionPass {
+  std::string Banner;     // String to print before each function
+  OStream *Out;           // ostream to print on
+  bool DeleteStream;      // Delete the ostream in our dtor?
+public:
+  static char ID;
+  PrintFunctionPass() : FunctionPass((intptr_t)&ID), Banner(""), Out(&cerr), 
+                        DeleteStream(false) {}
+  PrintFunctionPass(const std::string &B, OStream *o = &cout,
+                    bool DS = false)
+    : FunctionPass((intptr_t)&ID), Banner(B), Out(o), DeleteStream(DS) {}
+
+  inline ~PrintFunctionPass() {
+    if (DeleteStream) delete Out;
+  }
+
+  // runOnFunction - This pass just prints a banner followed by the function as
+  // it's processed.
+  //
+  bool runOnFunction(Function &F) {
+    (*Out) << Banner << static_cast<Value&>(F);
+    return false;
+  }
+
+  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesAll();
+  }
+};
+
+} // End llvm namespace
+
+#endif
diff --git a/include/llvm/Assembly/Writer.h b/include/llvm/Assembly/Writer.h
new file mode 100644
index 0000000..45c9513
--- /dev/null
+++ b/include/llvm/Assembly/Writer.h
@@ -0,0 +1,45 @@
+//===-- llvm/Assembly/Writer.h - Printer for LLVM assembly files --*- C++ -*-=//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This functionality is implemented by lib/VMCore/AsmWriter.cpp.
+// This library is used to print LLVM assembly language files to an iostream. It
+// can print LLVM code at a variety of granularities, including Modules,
+// BasicBlocks, and Instructions.  This makes it useful for debugging.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ASSEMBLY_WRITER_H
+#define LLVM_ASSEMBLY_WRITER_H
+
+#include <iosfwd>
+
+namespace llvm {
+
+class Type;
+class Module;
+class Value;
+
+// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
+// type, iff there is an entry in the Module's symbol table for the specified
+// type or one of its component types.  This is slower than a simple x << Type;
+//
+std::ostream &WriteTypeSymbolic(std::ostream &, const Type *, const Module *M);
+
+// WriteAsOperand - Write the name of the specified value out to the specified
+// ostream.  This can be useful when you just want to print int %reg126, not the
+// whole instruction that generated it.  If you specify a Module for context,
+// then even constants get pretty-printed; for example, the type of a null
+// pointer is printed symbolically.
+//
+std::ostream &WriteAsOperand(std::ostream &, const Value *, bool PrintTy = true,
+                             const Module *Context = 0);
+
+} // End llvm namespace
+
+#endif