Move alignment from MCSectionData to MCSection.

This starts merging MCSection and MCSectionData.

There are a few issues with the current split between MCSection and
MCSectionData.

* It optimizes the the not as important case. We want the production
of .o files to be really fast, but the split puts the information used
for .o emission in a separate data structure.

* The ELF/COFF/MachO hierarchy is not represented in MCSectionData,
leading to some ad-hoc ways to represent the various flags.

* It makes it harder to remember where each item is.

The attached patch starts merging the two by moving the alignment from
MCSectionData to MCSection.

Most of the patch is actually just dropping 'const', since
MCSectionData is mutable, but MCSection was not.

llvm-svn: 237936

1 files changed, 9 insertions, 9 deletions

diff --git a/llvm/lib/MC/MCDwarf.cpp b/llvm/lib/MC/MCDwarf.cpp
index ad70d61dccb..a7e83f61708 100644
--- a/llvm/lib/MC/MCDwarf.cpp
+++ b/llvm/lib/MC/MCDwarf.cpp
@@ -64,7 +64,7 @@ static inline uint64_t ScaleAddrDelta(MCContext &Context, uint64_t AddrDelta) {
 // and if there is information from the last .loc directive that has yet to have
 // a line entry made for it is made.
 //
-void MCLineEntry::Make(MCObjectStreamer *MCOS, const MCSection *Section) {
+void MCLineEntry::Make(MCObjectStreamer *MCOS, MCSection *Section) {
   if (!MCOS->getContext().getDwarfLocSeen())
     return;
 
@@ -115,7 +115,7 @@ static inline const MCExpr *MakeStartMinusEndExpr(const MCStreamer &MCOS,
 // in the LineSection.
 //
 static inline void
-EmitDwarfLineTable(MCObjectStreamer *MCOS, const MCSection *Section,
+EmitDwarfLineTable(MCObjectStreamer *MCOS, MCSection *Section,
                    const MCLineSection::MCLineEntryCollection &LineEntries) {
   unsigned FileNum = 1;
   unsigned LastLine = 1;
@@ -610,8 +610,8 @@ static void EmitGenDwarfAranges(MCStreamer *MCOS,
 
   // Now emit the table of pairs of PointerSize'ed values for the section
   // addresses and sizes.
-  for (const MCSection *Sec : Sections) {
-    MCSymbol *StartSymbol = Sec->getBeginSymbol();
+  for (MCSection *Sec : Sections) {
+    const MCSymbol *StartSymbol = Sec->getBeginSymbol();
     MCSymbol *EndSymbol = Sec->getEndSymbol(context);
     assert(StartSymbol && "StartSymbol must not be NULL");
     assert(EndSymbol && "EndSymbol must not be NULL");
@@ -805,8 +805,8 @@ static void EmitGenDwarfRanges(MCStreamer *MCOS) {
 
   MCOS->SwitchSection(context.getObjectFileInfo()->getDwarfRangesSection());
 
-  for (const MCSection *Sec : Sections) {
-    MCSymbol *StartSymbol = Sec->getBeginSymbol();
+  for (MCSection *Sec : Sections) {
+    const MCSymbol *StartSymbol = Sec->getBeginSymbol();
     MCSymbol *EndSymbol = Sec->getEndSymbol(context);
     assert(StartSymbol && "StartSymbol must not be NULL");
     assert(EndSymbol && "EndSymbol must not be NULL");
@@ -1520,9 +1520,9 @@ void MCDwarfFrameEmitter::Emit(MCObjectStreamer &Streamer, MCAsmBackend *MAB,
 
   if (!NeedsEHFrameSection) return;
 
-  const MCSection &Section =
-    IsEH ? *const_cast<MCObjectFileInfo*>(MOFI)->getEHFrameSection() :
-           *MOFI->getDwarfFrameSection();
+  MCSection &Section =
+      IsEH ? *const_cast<MCObjectFileInfo *>(MOFI)->getEHFrameSection()
+           : *MOFI->getDwarfFrameSection();
 
   Streamer.SwitchSection(&Section);
   MCSymbol *SectionStart = Context.createTempSymbol();