[llvm] [AArch64][SME] Use reportFatalUsageError rather than assert (NFC) (PR #145491)

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Tue Jun 24 03:12:39 PDT 2025


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-aarch64

Author: Benjamin Maxwell (MacDue)

<details>
<summary>Changes</summary>

Fixes #<!-- -->144351

---
Full diff: https://github.com/llvm/llvm-project/pull/145491.diff


1 Files Affected:

- (modified) llvm/lib/Target/AArch64/AArch64TargetMachine.cpp (+2-1) 


``````````diff
diff --git a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
index 8150e91c8ba52..65c3417cbb69f 100644
--- a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
+++ b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
@@ -481,7 +481,8 @@ AArch64TargetMachine::getSubtargetImpl(const Function &F) const {
         MaxSVEVectorSize, IsStreaming, IsStreamingCompatible, HasMinSize);
   }
 
-  assert((!IsStreaming || I->hasSME()) && "Expected SME to be available");
+  if (IsStreaming && !I->hasSME())
+    reportFatalUsageError("Streaming SVE functions require SME");
 
   return I.get();
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/145491


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