r187617 - Use function attributes to indicate if we don't want to realign the stack.

[Bill Wendling]

Author: void
Date: Thu Aug  1 16:41:02 2013
New Revision: 187617

URL: http://llvm.org/viewvc/llvm-project?rev=187617&view=rev
Log:
Use function attributes to indicate if we don't want to realign the stack.

Modified:
    cfe/trunk/lib/CodeGen/BackendUtil.cpp
    cfe/trunk/lib/CodeGen/CGCall.cpp

Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=187617&r1=187616&r2=187617&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Thu Aug  1 16:41:02 2013
@@ -451,7 +451,6 @@ TargetMachine *EmitAssemblyHelper::Creat
   Options.UnsafeFPMath = CodeGenOpts.UnsafeFPMath;
   Options.UseSoftFloat = CodeGenOpts.SoftFloat;
   Options.StackAlignmentOverride = CodeGenOpts.StackAlignment;
-  Options.RealignStack = CodeGenOpts.StackRealignment;
   Options.DisableTailCalls = CodeGenOpts.DisableTailCalls;
   Options.TrapFuncName = CodeGenOpts.TrapFuncName;
   Options.PositionIndependentExecutable = LangOpts.PIELevel != 0;

Modified: cfe/trunk/lib/CodeGen/CGCall.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGCall.cpp?rev=187617&r1=187616&r2=187617&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGCall.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGCall.cpp Thu Aug  1 16:41:02 2013
@@ -1084,6 +1084,9 @@ void CodeGenModule::ConstructAttributeLi
 
     FuncAttrs.addAttribute("no-frame-pointer-elim-non-leaf",
                            llvm::toStringRef(NoFramePointerElimNonLeaf));
+
+    if (!CodeGenOpts.StackRealignment)
+      FuncAttrs.addAttribute("no-realign-stack");
   }
 
   QualType RetTy = FI.getReturnType();