[llvm] [AArch64][SME] Conditionally do smstart/smstop (PR #77113)

[Matthew Devereau via llvm-commits]

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@@ -0,0 +1,156 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme -start-after=simplifycfg -enable-tail-merge=false -verify-machineinstrs < %s | FileCheck %s
+
+declare void @normal_callee();
+declare void @streaming_callee() "aarch64_pstate_sm_enabled";
+declare void @streaming_compatible_callee() "aarch64_pstate_sm_compatible";
+
+define float @sm_body_sm_compatible_simple() "aarch64_pstate_sm_compatible" "aarch64_pstate_sm_body" {
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MDevereau wrote:

Done.

https://github.com/llvm/llvm-project/pull/77113