[AArch64] Dont inline streaming Fn if caller has no SVE

Without this change, the following test would fail to compile
with `-march=armv8-a+sme`:

  void func1(const svuint32_t *in, svuint32_t *out) {
    [&]() __arm_streaming { *out = *in; }();
  }

Author: sdesmalen-arm

llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp

@@ -280,16 +280,22 @@ bool AArch64TTIImpl::areInlineCompatible(const Function *Caller,
   if (CallAttrs.callee().isNewZA() || CallAttrs.callee().isNewZT0())
     return false;
 
+  const TargetMachine &TM = getTLI()->getTargetMachine();
+  const FeatureBitset &CallerBits =
+      TM.getSubtargetImpl(*Caller)->getFeatureBits();
+
+  // Cannot inline a streaming function into a non-streaming function,
+  // if the caller has no SVE.
+  if (CallAttrs.requiresSMChange() && !CallerBits.test(AArch64::FeatureSVE))
+    return false;
+
   if (CallAttrs.requiresLazySave() || CallAttrs.requiresSMChange() ||
       CallAttrs.requiresPreservingZT0() ||
       CallAttrs.requiresPreservingAllZAState()) {
     if (hasPossibleIncompatibleOps(Callee))
       return false;
   }
 
-  const TargetMachine &TM = getTLI()->getTargetMachine();
-  const FeatureBitset &CallerBits =
-      TM.getSubtargetImpl(*Caller)->getFeatureBits();
   const FeatureBitset &CalleeBits =
       TM.getSubtargetImpl(*Callee)->getFeatureBits();
   // Adjust the feature bitsets by inverting some of the bits. This is needed

llvm/test/Transforms/Inline/AArch64/sme-pstatesm-attrs.ll

@@ -691,7 +691,7 @@ define void @nosve_streaming_function(ptr %ptr) "target-features"="+sme" "aarch6
 define void @nosve_non_streaming_caller_streaming_callee_dont_inline(ptr %ptr) "target-features"="+sme"  {
 ; CHECK-LABEL: define void @nosve_non_streaming_caller_streaming_callee_dont_inline
 ; CHECK-SAME: (ptr [[PTR:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    store <vscale x 4 x i32> zeroinitializer, ptr [[PTR]], align 16
+; CHECK-NEXT:    call void @nosve_streaming_function(ptr [[PTR]])
 ; CHECK-NEXT:    ret void
 ;
   call void @nosve_streaming_function(ptr %ptr)