[MC] Move CompressDebugSections/RelaxELFRelocations from TargetOptions/MCAsmInfo to MCTargetOptions

The convention is for such MC-specific options to reside in
MCTargetOptions. However, CompressDebugSections/RelaxELFRelocations do
not follow the convention: `CompressDebugSections` is defined in both
TargetOptions and MCAsmInfo and there is forwarding complexity.

Move the option to MCTargetOptions and hereby simplify the code. Rename
the misleading RelaxELFRelocations to X86RelaxRelocations. llvm-mc
-relax-relocations and llc -x86-relax-relocations can now be unified.

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/MC/ELFObjectWriter.cpp b/llvm/lib/MC/ELFObjectWriter.cpp
index 531d299..3c4d3ab 100644
--- a/llvm/lib/MC/ELFObjectWriter.cpp
+++ b/llvm/lib/MC/ELFObjectWriter.cpp
@@ -875,11 +875,10 @@ void ELFWriter::writeSectionData(const MCAssembler &Asm, MCSection &Sec,
                                  const MCAsmLayout &Layout) {
   MCSectionELF &Section = static_cast<MCSectionELF &>(Sec);
   StringRef SectionName = Section.getName();
-
-  auto &MC = Asm.getContext();
-  const auto &MAI = MC.getAsmInfo();
-
-  const DebugCompressionType CompressionType = MAI->compressDebugSections();
+  auto &Ctx = Asm.getContext();
+  const DebugCompressionType CompressionType =
+      Ctx.getTargetOptions() ? Ctx.getTargetOptions()->CompressDebugSections
+                             : DebugCompressionType::None;
   if (CompressionType == DebugCompressionType::None ||
       !SectionName.starts_with(".debug_")) {
     Asm.writeSectionData(W.OS, &Section, Layout);