[AArch64] NFC: Precommit test changes to sme-pstatesm-attrs.ll

The tests need feature attributes, in order for the inliner to
make a more informed decision.

Author: sdesmalen-arm

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

@@ -5,11 +5,11 @@
 ; However, if the call to @streaming_callee requires a streaming-mode change, it should always inline the call because the streaming-mode change is more expensive.
 target triple = "aarch64"
 
-declare void @streaming_compatible_f() "aarch64_pstate_sm_compatible"
+declare void @streaming_compatible_f() #0 "aarch64_pstate_sm_compatible"
 
 ; Function @streaming_callee doesn't contain any operations that may use ZA
 ; state and therefore can be legally inlined into a normal function.
-define void @streaming_callee() "aarch64_pstate_sm_enabled" {
+define void @streaming_callee() #0 "aarch64_pstate_sm_enabled" {
 ; CHECK-LABEL: define void @streaming_callee
 ; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
 ; CHECK-NEXT:    call void @streaming_compatible_f()
@@ -22,7 +22,7 @@ define void @streaming_callee() "aarch64_pstate_sm_enabled" {
 }
 
 ; Inline call to @streaming_callee to remove a streaming mode change.
-define void @non_streaming_caller_inline() {
+define void @non_streaming_caller_inline() #0 {
 ; CHECK-LABEL: define void @non_streaming_caller_inline
 ; CHECK-SAME: () #[[ATTR2:[0-9]+]] {
 ; CHECK-NEXT:    call void @streaming_compatible_f()
@@ -34,7 +34,7 @@ define void @non_streaming_caller_inline() {
 }
 
 ; Don't inline call to @streaming_callee when the inline-threshold is set to 1, because it does not eliminate a streaming-mode change.
-define void @streaming_caller_dont_inline() "aarch64_pstate_sm_enabled" {
+define void @streaming_caller_dont_inline() #0 "aarch64_pstate_sm_enabled" {
 ; CHECK-LABEL: define void @streaming_caller_dont_inline
 ; CHECK-SAME: () #[[ATTR1]] {
 ; CHECK-NEXT:    call void @streaming_callee()
@@ -43,3 +43,5 @@ define void @streaming_caller_dont_inline() "aarch64_pstate_sm_enabled" {
   call void @streaming_callee()
   ret void
 }
+
+attributes #0 = { "target-features"="+sve,+sme" }