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[oota-llvm.git] / lib / Target / TargetAsmInfo.cpp

diff --git a/lib/Target/TargetAsmInfo.cpp b/lib/Target/TargetAsmInfo.cpp
index 79c064c37164f1eac17a41c517b71a26de6cf4c7..216994502251bf3613d1297ee91668d76bdb6d46 100644 (file)
--- a/lib/Target/TargetAsmInfo.cpp
+++ b/lib/Target/TargetAsmInfo.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by James M. Laskey and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -13,23 +13,37 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/Support/Dwarf.h"
+#include <cctype>
+#include <cstring>
 
 using namespace llvm;
 
 TargetAsmInfo::TargetAsmInfo() :
-  TextSection(".text"),
-  DataSection(".data"),
-  AddressSize(4),
+  TextSection("\t.text"),
+  DataSection("\t.data"),
+  BSSSection("\t.bss"),
+  TLSDataSection("\t.section .tdata,\"awT\",@progbits"),
+  TLSBSSSection("\t.section .tbss,\"awT\",@nobits"),
+  ZeroFillDirective(0),
   NeedsSet(false),
+  MaxInstLength(4),
+  PCSymbol("$"),
+  SeparatorChar(';'),
   CommentString("#"),
   GlobalPrefix(""),
   PrivateGlobalPrefix("."),
+  JumpTableSpecialLabelPrefix(0),
   GlobalVarAddrPrefix(""),
   GlobalVarAddrSuffix(""),
   FunctionAddrPrefix(""),
   FunctionAddrSuffix(""),
+  PersonalityPrefix(""),
+  PersonalitySuffix(""),
+  NeedsIndirectEncoding(false),
   InlineAsmStart("#APP"),
   InlineAsmEnd("#NO_APP"),
+  AssemblerDialect(0),
   ZeroDirective("\t.zero\t"),
   ZeroDirectiveSuffix(0),
   AsciiDirective("\t.ascii\t"),
@@ -40,27 +54,43 @@ TargetAsmInfo::TargetAsmInfo() :
   Data64bitsDirective("\t.quad\t"),
   AlignDirective("\t.align\t"),
   AlignmentIsInBytes(true),
+  TextAlignFillValue(0),
   SwitchToSectionDirective("\t.section\t"),
   TextSectionStartSuffix(""),
   DataSectionStartSuffix(""),
   SectionEndDirectiveSuffix(0),
-  ConstantPoolSection("\t.section .rodata\n"),
-  JumpTableDataSection("\t.section .rodata\n"),
+  ConstantPoolSection("\t.section .rodata"),
+  JumpTableDataSection("\t.section .rodata"),
   JumpTableDirective(0),
+  CStringSection(0),
   StaticCtorsSection("\t.section .ctors,\"aw\",@progbits"),
   StaticDtorsSection("\t.section .dtors,\"aw\",@progbits"),
   FourByteConstantSection(0),
   EightByteConstantSection(0),
   SixteenByteConstantSection(0),
+  ReadOnlySection(0),
+  GlobalDirective("\t.globl\t"),
   SetDirective(0),
   LCOMMDirective(0),
   COMMDirective("\t.comm\t"),
   COMMDirectiveTakesAlignment(true),
   HasDotTypeDotSizeDirective(true),
   UsedDirective(0),
+  WeakRefDirective(0),
+  WeakDefDirective(0),
+  HiddenDirective("\t.hidden\t"),
+  ProtectedDirective("\t.protected\t"),
+  AbsoluteDebugSectionOffsets(false),
+  AbsoluteEHSectionOffsets(false),
   HasLEB128(false),
-  HasDotLoc(false),
-  HasDotFile(false),
+  HasDotLocAndDotFile(false),
+  SupportsDebugInformation(false),
+  SupportsExceptionHandling(false),
+  DwarfRequiresFrameSection(true),
+  GlobalEHDirective(0),
+  SupportsWeakOmittedEHFrame(true),
+  ShortenEHDataOn64Bit(false),
+  DwarfSectionOffsetDirective(0),
   DwarfAbbrevSection(".debug_abbrev"),
   DwarfInfoSection(".debug_info"),
   DwarfLineSection(".debug_line"),
@@ -71,8 +101,43 @@ TargetAsmInfo::TargetAsmInfo() :
   DwarfLocSection(".debug_loc"),
   DwarfARangesSection(".debug_aranges"),
   DwarfRangesSection(".debug_ranges"),
-  DwarfMacInfoSection(".debug_macinfo")
-{}
+  DwarfMacInfoSection(".debug_macinfo"),
+  DwarfEHFrameSection(".eh_frame"),
+  DwarfExceptionSection(".gcc_except_table"),
+  AsmTransCBE(0) {
+}
 
 TargetAsmInfo::~TargetAsmInfo() {
 }
+
+/// Measure the specified inline asm to determine an approximation of its
+/// length.
+/// Comments (which run till the next SeparatorChar or newline) do not
+/// count as an instruction.
+/// Any other non-whitespace text is considered an instruction, with
+/// multiple instructions separated by SeparatorChar or newlines.
+/// Variable-length instructions are not handled here; this function
+/// may be overloaded in the target code to do that.
+unsigned TargetAsmInfo::getInlineAsmLength(const char *Str) const {
+  // Count the number of instructions in the asm.
+  bool atInsnStart = true;
+  unsigned Length = 0;
+  for (; *Str; ++Str) {
+    if (*Str == '\n' || *Str == SeparatorChar)
+      atInsnStart = true;
+    if (atInsnStart && !isspace(*Str)) {
+      Length += MaxInstLength;
+      atInsnStart = false;
+    }
+    if (atInsnStart && strncmp(Str, CommentString, strlen(CommentString))==0)
+      atInsnStart = false;
+  }
+
+  return Length;
+}
+
+unsigned TargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
+                                              bool Global) const {
+  return dwarf::DW_EH_PE_absptr;
+}
+