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/lib/AsmParser/ParserInternals.h b/lib/AsmParser/ParserInternals.h
new file mode 100644
index 0000000..e315902
--- /dev/null
+++ b/lib/AsmParser/ParserInternals.h
@@ -0,0 +1,252 @@
+//===-- ParserInternals.h - Definitions internal to the parser --*- 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 header file defines the various variables that are shared among the
+// different components of the parser...
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PARSER_INTERNALS_H
+#define PARSER_INTERNALS_H
+
+#include "llvm/Constants.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/ParameterAttributes.h"
+#include "llvm/Function.h"
+#include "llvm/Instructions.h"
+#include "llvm/Assembly/Parser.h"
+#include "llvm/ADT/StringExtras.h"
+
+
+// Global variables exported from the lexer...
+
+extern int llvmAsmlineno; /// FIXME: Not threading friendly
+extern llvm::ParseError* TheParseError; /// FIXME: Not threading friendly
+
+extern std::string &llvmAsmTextin;
+
+// functions exported from the lexer
+void set_scan_file(FILE * F);
+void set_scan_string (const char * str);
+
+// Globals exported by the parser...
+extern char* llvmAsmtext;
+extern int llvmAsmleng;
+
+namespace llvm {
+class Module;
+
+// Globals exported by the parser...
+extern std::string CurFilename; /// FIXME: Not threading friendly
+
+// RunVMAsmParser - Parse a file and return Module
+Module *RunVMAsmParser(const std::string &Filename, FILE *F);
+
+// Parse a string directly
+Module *RunVMAsmParser(const char * AsmString, Module * M);
+
+// UnEscapeLexed - Run through the specified buffer and change \xx codes to the
+// appropriate character.
+char *UnEscapeLexed(char *Buffer);
+
+// GenerateError - Wrapper around the ParseException class that automatically
+// fills in file line number and column number and options info.
+//
+// This also helps me because I keep typing 'throw new ParseException' instead
+// of just 'throw ParseException'... sigh...
+//
+extern void GenerateError(const std::string &message, int LineNo = -1);
+
+/// InlineAsmDescriptor - This is a simple class that holds info about inline
+/// asm blocks, for use by ValID.
+struct InlineAsmDescriptor {
+ std::string AsmString, Constraints;
+ bool HasSideEffects;
+
+ InlineAsmDescriptor(const std::string &as, const std::string &c, bool HSE)
+ : AsmString(as), Constraints(c), HasSideEffects(HSE) {}
+};
+
+
+// ValID - Represents a reference of a definition of some sort. This may either
+// be a numeric reference or a symbolic (%var) reference. This is just a
+// discriminated union.
+//
+// Note that I can't implement this class in a straight forward manner with
+// constructors and stuff because it goes in a union.
+//
+struct ValID {
+ enum {
+ LocalID, GlobalID, LocalName, GlobalName,
+ ConstSIntVal, ConstUIntVal, ConstFPVal, ConstNullVal,
+ ConstUndefVal, ConstZeroVal, ConstantVal, InlineAsmVal
+ } Type;
+
+ union {
+ unsigned Num; // If it's a numeric reference like %1234
+ std::string *Name; // If it's a named reference. Memory must be deleted.
+ int64_t ConstPool64; // Constant pool reference. This is the value
+ uint64_t UConstPool64;// Unsigned constant pool reference.
+ double ConstPoolFP; // Floating point constant pool reference
+ Constant *ConstantValue; // Fully resolved constant for ConstantVal case.
+ InlineAsmDescriptor *IAD;
+ };
+
+ static ValID createLocalID(unsigned Num) {
+ ValID D; D.Type = LocalID; D.Num = Num; return D;
+ }
+ static ValID createGlobalID(unsigned Num) {
+ ValID D; D.Type = GlobalID; D.Num = Num; return D;
+ }
+ static ValID createLocalName(const std::string &Name) {
+ ValID D; D.Type = LocalName; D.Name = new std::string(Name); return D;
+ }
+ static ValID createGlobalName(const std::string &Name) {
+ ValID D; D.Type = GlobalName; D.Name = new std::string(Name); return D;
+ }
+
+ static ValID create(int64_t Val) {
+ ValID D; D.Type = ConstSIntVal; D.ConstPool64 = Val; return D;
+ }
+
+ static ValID create(uint64_t Val) {
+ ValID D; D.Type = ConstUIntVal; D.UConstPool64 = Val; return D;
+ }
+
+ static ValID create(double Val) {
+ ValID D; D.Type = ConstFPVal; D.ConstPoolFP = Val; return D;
+ }
+
+ static ValID createNull() {
+ ValID D; D.Type = ConstNullVal; return D;
+ }
+
+ static ValID createUndef() {
+ ValID D; D.Type = ConstUndefVal; return D;
+ }
+
+ static ValID createZeroInit() {
+ ValID D; D.Type = ConstZeroVal; return D;
+ }
+
+ static ValID create(Constant *Val) {
+ ValID D; D.Type = ConstantVal; D.ConstantValue = Val; return D;
+ }
+
+ static ValID createInlineAsm(const std::string &AsmString,
+ const std::string &Constraints,
+ bool HasSideEffects) {
+ ValID D;
+ D.Type = InlineAsmVal;
+ D.IAD = new InlineAsmDescriptor(AsmString, Constraints, HasSideEffects);
+ return D;
+ }
+
+ inline void destroy() const {
+ if (Type == LocalName || Type == GlobalName)
+ delete Name; // Free this strdup'd memory.
+ else if (Type == InlineAsmVal)
+ delete IAD;
+ }
+
+ inline ValID copy() const {
+ if (Type != LocalName && Type != GlobalName) return *this;
+ ValID Result = *this;
+ Result.Name = new std::string(*Name);
+ return Result;
+ }
+
+ inline std::string getName() const {
+ switch (Type) {
+ case LocalID : return '%' + utostr(Num);
+ case GlobalID : return '@' + utostr(Num);
+ case LocalName : return *Name;
+ case GlobalName : return *Name;
+ case ConstFPVal : return ftostr(ConstPoolFP);
+ case ConstNullVal : return "null";
+ case ConstUndefVal : return "undef";
+ case ConstZeroVal : return "zeroinitializer";
+ case ConstUIntVal :
+ case ConstSIntVal : return std::string("%") + itostr(ConstPool64);
+ case ConstantVal:
+ if (ConstantValue == ConstantInt::getTrue()) return "true";
+ if (ConstantValue == ConstantInt::getFalse()) return "false";
+ return "<constant expression>";
+ default:
+ assert(0 && "Unknown value!");
+ abort();
+ return "";
+ }
+ }
+
+ bool operator<(const ValID &V) const {
+ if (Type != V.Type) return Type < V.Type;
+ switch (Type) {
+ case LocalID:
+ case GlobalID: return Num < V.Num;
+ case LocalName:
+ case GlobalName: return *Name < *V.Name;
+ case ConstSIntVal: return ConstPool64 < V.ConstPool64;
+ case ConstUIntVal: return UConstPool64 < V.UConstPool64;
+ case ConstFPVal: return ConstPoolFP < V.ConstPoolFP;
+ case ConstNullVal: return false;
+ case ConstUndefVal: return false;
+ case ConstZeroVal: return false;
+ case ConstantVal: return ConstantValue < V.ConstantValue;
+ default: assert(0 && "Unknown value type!"); return false;
+ }
+ }
+
+ bool operator==(const ValID &V) const {
+ if (Type == V.Type) {
+ switch (Type) {
+ case LocalID:
+ case GlobalID: return Num == V.Num;
+ case LocalName:
+ case GlobalName: return *Name == *(V.Name);
+ case ConstSIntVal: return ConstPool64 == V.ConstPool64;
+ case ConstUIntVal: return UConstPool64 == V.UConstPool64;
+ case ConstFPVal: return ConstPoolFP == V.ConstPoolFP;
+ case ConstantVal: return ConstantValue == V.ConstantValue;
+ case ConstNullVal: return true;
+ case ConstUndefVal: return true;
+ case ConstZeroVal: return true;
+ default: assert(0 && "Unknown value type!"); return false;
+ }
+ }
+ return false;
+ }
+};
+
+struct TypeWithAttrs {
+ llvm::PATypeHolder *Ty;
+ uint16_t Attrs;
+};
+
+typedef std::vector<TypeWithAttrs> TypeWithAttrsList;
+
+struct ArgListEntry {
+ uint16_t Attrs;
+ llvm::PATypeHolder *Ty;
+ std::string *Name;
+};
+
+typedef std::vector<struct ArgListEntry> ArgListType;
+
+struct ValueRefListEntry {
+ Value *Val;
+ uint16_t Attrs;
+};
+
+typedef std::vector<ValueRefListEntry> ValueRefList;
+
+
+} // End llvm namespace
+
+#endif