[ARM64] Add RUN lines for "–target arm64 –mattr=-fp-armv8" on AArch64 no-fp test.

This patch is a supplement of implementing predicate of FP, enabling aarch64 backend
no-fp tests on arm64 target for verification. During this, one bug is exposed and
fixed by this patch.

llvm-svn: 207215

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Target/ARM64/ARM64ISelLowering.cpp b/llvm/lib/Target/ARM64/ARM64ISelLowering.cpp
index 37eccb1499c..3cdd2db4ea5 100644
--- a/llvm/lib/Target/ARM64/ARM64ISelLowering.cpp
+++ b/llvm/lib/Target/ARM64/ARM64ISelLowering.cpp
@@ -5812,12 +5812,12 @@ EVT ARM64TargetLowering::getOptimalMemOpType(uint64_t Size, unsigned DstAlign,
   // addressing mode). Just do two i64 store of zero-registers.
   bool Fast;
   const Function *F = MF.getFunction();
-  if (!IsMemset && Size >= 16 &&
+  if (Subtarget->hasFPARMv8() && !IsMemset && Size >= 16 &&
       !F->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
                                        Attribute::NoImplicitFloat) &&
       (memOpAlign(SrcAlign, DstAlign, 16) ||
-       (allowsUnalignedMemoryAccesses(MVT::v2i64, 0, &Fast) && Fast)))
-    return MVT::v2i64;
+       (allowsUnalignedMemoryAccesses(MVT::f128, 0, &Fast) && Fast)))
+    return MVT::f128;
 
   return Size >= 8 ? MVT::i64 : MVT::i32;
 }