Add an "alignment" field to the MachineFunction object. It makes more sense to
have the alignment be calculated up front, and have the back-ends obey whatever
alignment is decided upon.

This allows for future work that would allow for precise no-op placement and the
like.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74564 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp b/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
index 02b625b..92edb44 100644
--- a/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
+++ b/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
@@ -433,7 +433,7 @@
   const Function *F = MF.getFunction();
 
   SwitchToSection(TAI->SectionForGlobal(F));
-  EmitAlignment(3, F);
+  EmitAlignment(MF.getAlignment(), F);
 
   switch (F->getLinkage()) {
   default: assert(0 && "Unknown linkage type!");
diff --git a/lib/Target/CellSPU/SPUISelLowering.cpp b/lib/Target/CellSPU/SPUISelLowering.cpp
index b286443..f16d7d8 100644
--- a/lib/Target/CellSPU/SPUISelLowering.cpp
+++ b/lib/Target/CellSPU/SPUISelLowering.cpp
@@ -481,6 +481,11 @@
   return ((i != node_names.end()) ? i->second : 0);
 }
 
+/// getFunctionAlignment - Return the function alignment.
+unsigned SPUTargetLowering::getFunctionAlignment(const Function *) const {
+  return 3;
+}
+
 //===----------------------------------------------------------------------===//
 // Return the Cell SPU's SETCC result type
 //===----------------------------------------------------------------------===//
diff --git a/lib/Target/CellSPU/SPUISelLowering.h b/lib/Target/CellSPU/SPUISelLowering.h
index 866c632..09c3d78 100644
--- a/lib/Target/CellSPU/SPUISelLowering.h
+++ b/lib/Target/CellSPU/SPUISelLowering.h
@@ -148,6 +148,9 @@
     virtual bool isLegalAddressImmediate(GlobalValue *) const;
 
     virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
+
+    /// getFunctionAlignment - Return the function alignment.
+    virtual unsigned getFunctionAlignment(const Function *F) const;
   };
 }