Remove some code for inferring alignment info from the x86 backend

now that the dag combiner does it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46404 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index e4d4ceb99fa1460d026d672e79b20fb246d4d892..f07793b4d9339804b3f5a4d127b4cec1be83162a 100644 (file)
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -5499,16 +5499,7 @@ static bool isBaseAlignment16(SDNode *Base, MachineFrameInfo *MFI,
   int64_t Offset;
   if (isGAPlusOffset(Base, GV, Offset))
     return (GV->getAlignment() >= 16 && (Offset % 16) == 0);
-  else {
-    assert(Base->getOpcode() == ISD::FrameIndex && "Unexpected base node!");
-    int BFI = cast<FrameIndexSDNode>(Base)->getIndex();
-    if (BFI < 0)
-      // Fixed objects do not specify alignment, however the offsets are known.
-      return ((Subtarget->getStackAlignment() % 16) == 0 &&
-              (MFI->getObjectOffset(BFI) % 16) == 0);
-    else
-      return MFI->getObjectAlignment(BFI) >= 16;
-  }
+  // DAG combine handles the stack object case.
   return false;
 }