[MC] Refactor MCObjectFileInfo initialization and allow targets to create MCObjectFileInfo

This makes it possible for targets to define their own MCObjectFileInfo.
This MCObjectFileInfo is then used to determine things like section alignment.

This is a follow up to D101462 and prepares for the RISCV backend defining the
text section alignment depending on the enabled extensions.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D101921

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/tools/llvm-mca/llvm-mca.cpp b/llvm/tools/llvm-mca/llvm-mca.cpp
index 4a4230c..3bb2f10 100644
--- a/llvm/tools/llvm-mca/llvm-mca.cpp
+++ b/llvm/tools/llvm-mca/llvm-mca.cpp
@@ -371,15 +371,15 @@ int main(int argc, char **argv) {
       TheTarget->createMCAsmInfo(*MRI, TripleName, MCOptions));
   assert(MAI && "Unable to create target asm info!");
 
-  MCObjectFileInfo MOFI;
   SourceMgr SrcMgr;
 
   // Tell SrcMgr about this buffer, which is what the parser will pick up.
   SrcMgr.AddNewSourceBuffer(std::move(*BufferPtr), SMLoc());
 
-  MCContext Ctx(TheTriple, MAI.get(), MRI.get(), &MOFI, STI.get(), &SrcMgr);
-
-  MOFI.initMCObjectFileInfo(Ctx, /*PIC=*/false);
+  MCContext Ctx(TheTriple, MAI.get(), MRI.get(), STI.get(), &SrcMgr);
+  std::unique_ptr<MCObjectFileInfo> MOFI(
+      TheTarget->createMCObjectFileInfo(Ctx, /*PIC=*/false));
+  Ctx.setObjectFileInfo(MOFI.get());
 
   std::unique_ptr<buffer_ostream> BOS;