Constify AsmPrinter passed to DIE methods.

llvm-svn: 231209
diff --git a/llvm/lib/CodeGen/AsmPrinter/DIE.cpp b/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
index 64ba56b..0afaf29 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
@@ -60,7 +60,7 @@
 
 /// Emit - Print the abbreviation using the specified asm printer.
 ///
-void DIEAbbrev::Emit(AsmPrinter *AP) const {
+void DIEAbbrev::Emit(const AsmPrinter *AP) const {
   // Emit its Dwarf tag type.
   AP->EmitULEB128(Tag, dwarf::TagString(Tag));
 
@@ -204,7 +204,7 @@
 
 /// EmitValue - Emit integer of appropriate size.
 ///
-void DIEInteger::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+void DIEInteger::EmitValue(const AsmPrinter *Asm, dwarf::Form Form) const {
   unsigned Size = ~0U;
   switch (Form) {
   case dwarf::DW_FORM_flag_present:
@@ -236,7 +236,7 @@
 
 /// SizeOf - Determine size of integer value in bytes.
 ///
-unsigned DIEInteger::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEInteger::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
   switch (Form) {
   case dwarf::DW_FORM_flag_present: return 0;
   case dwarf::DW_FORM_flag:  // Fall thru
@@ -272,13 +272,13 @@
 
 /// EmitValue - Emit expression value.
 ///
-void DIEExpr::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIEExpr::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
   AP->OutStreamer.EmitValue(Expr, SizeOf(AP, Form));
 }
 
 /// SizeOf - Determine size of expression value in bytes.
 ///
-unsigned DIEExpr::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEExpr::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
   if (Form == dwarf::DW_FORM_data4) return 4;
   if (Form == dwarf::DW_FORM_sec_offset) return 4;
   if (Form == dwarf::DW_FORM_strp) return 4;
@@ -298,7 +298,7 @@
 
 /// EmitValue - Emit label value.
 ///
-void DIELabel::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIELabel::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
   AP->EmitLabelReference(Label, SizeOf(AP, Form),
                          Form == dwarf::DW_FORM_strp ||
                              Form == dwarf::DW_FORM_sec_offset ||
@@ -307,7 +307,7 @@
 
 /// SizeOf - Determine size of label value in bytes.
 ///
-unsigned DIELabel::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIELabel::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
   if (Form == dwarf::DW_FORM_data4) return 4;
   if (Form == dwarf::DW_FORM_sec_offset) return 4;
   if (Form == dwarf::DW_FORM_strp) return 4;
@@ -326,13 +326,13 @@
 
 /// EmitValue - Emit delta value.
 ///
-void DIEDelta::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIEDelta::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
   AP->EmitLabelDifference(LabelHi, LabelLo, SizeOf(AP, Form));
 }
 
 /// SizeOf - Determine size of delta value in bytes.
 ///
-unsigned DIEDelta::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEDelta::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
   if (Form == dwarf::DW_FORM_data4) return 4;
   if (Form == dwarf::DW_FORM_sec_offset) return 4;
   if (Form == dwarf::DW_FORM_strp) return 4;
@@ -351,13 +351,13 @@
 
 /// EmitValue - Emit string value.
 ///
-void DIEString::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIEString::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
   Access->EmitValue(AP, Form);
 }
 
 /// SizeOf - Determine size of delta value in bytes.
 ///
-unsigned DIEString::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEString::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
   return Access->SizeOf(AP, Form);
 }
 
@@ -397,7 +397,7 @@
 
 /// EmitValue - Emit debug information entry offset.
 ///
-void DIEEntry::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIEEntry::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
 
   if (Form == dwarf::DW_FORM_ref_addr) {
     const DwarfDebug *DD = AP->getDwarfDebug();
@@ -420,7 +420,7 @@
     AP->EmitInt32(Entry.getOffset());
 }
 
-unsigned DIEEntry::getRefAddrSize(AsmPrinter *AP) {
+unsigned DIEEntry::getRefAddrSize(const AsmPrinter *AP) {
   // DWARF4: References that use the attribute form DW_FORM_ref_addr are
   // specified to be four bytes in the DWARF 32-bit format and eight bytes
   // in the DWARF 64-bit format, while DWARF Version 2 specifies that such
@@ -441,7 +441,7 @@
 //===----------------------------------------------------------------------===//
 // DIETypeSignature Implementation
 //===----------------------------------------------------------------------===//
-void DIETypeSignature::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+void DIETypeSignature::EmitValue(const AsmPrinter *Asm, dwarf::Form Form) const {
   assert(Form == dwarf::DW_FORM_ref_sig8);
   Asm->OutStreamer.EmitIntValue(Unit.getTypeSignature(), 8);
 }
@@ -460,7 +460,7 @@
 
 /// ComputeSize - calculate the size of the location expression.
 ///
-unsigned DIELoc::ComputeSize(AsmPrinter *AP) const {
+unsigned DIELoc::ComputeSize(const AsmPrinter *AP) const {
   if (!Size) {
     const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
     for (unsigned i = 0, N = Values.size(); i < N; ++i)
@@ -472,7 +472,7 @@
 
 /// EmitValue - Emit location data.
 ///
-void DIELoc::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+void DIELoc::EmitValue(const AsmPrinter *Asm, dwarf::Form Form) const {
   switch (Form) {
   default: llvm_unreachable("Improper form for block");
   case dwarf::DW_FORM_block1: Asm->EmitInt8(Size);    break;
@@ -490,7 +490,7 @@
 
 /// SizeOf - Determine size of location data in bytes.
 ///
-unsigned DIELoc::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIELoc::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
   switch (Form) {
   case dwarf::DW_FORM_block1: return Size + sizeof(int8_t);
   case dwarf::DW_FORM_block2: return Size + sizeof(int16_t);
@@ -515,7 +515,7 @@
 
 /// ComputeSize - calculate the size of the block.
 ///
-unsigned DIEBlock::ComputeSize(AsmPrinter *AP) const {
+unsigned DIEBlock::ComputeSize(const AsmPrinter *AP) const {
   if (!Size) {
     const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
     for (unsigned i = 0, N = Values.size(); i < N; ++i)
@@ -527,7 +527,7 @@
 
 /// EmitValue - Emit block data.
 ///
-void DIEBlock::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+void DIEBlock::EmitValue(const AsmPrinter *Asm, dwarf::Form Form) const {
   switch (Form) {
   default: llvm_unreachable("Improper form for block");
   case dwarf::DW_FORM_block1: Asm->EmitInt8(Size);    break;
@@ -543,7 +543,7 @@
 
 /// SizeOf - Determine size of block data in bytes.
 ///
-unsigned DIEBlock::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEBlock::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
   switch (Form) {
   case dwarf::DW_FORM_block1: return Size + sizeof(int8_t);
   case dwarf::DW_FORM_block2: return Size + sizeof(int16_t);
@@ -564,7 +564,7 @@
 // DIELocList Implementation
 //===----------------------------------------------------------------------===//
 
-unsigned DIELocList::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIELocList::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
   if (Form == dwarf::DW_FORM_data4)
     return 4;
   if (Form == dwarf::DW_FORM_sec_offset)
@@ -574,7 +574,7 @@
 
 /// EmitValue - Emit label value.
 ///
-void DIELocList::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIELocList::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
   DwarfDebug *DD = AP->getDwarfDebug();
   MCSymbol *Label = DD->getDebugLocEntries()[Index].Label;