[llvm] [AArch64] Fix stack probing clobbering flags (PR #81879)

[via llvm-commits]

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@@ -1058,9 +1058,14 @@ bool AArch64FrameLowering::canUseAsPrologue(
       return false;
   }
 
+  // Certain stack probing sequences might clobber flags, then we can't use
+  // the block as a prologue if the flags register is a live-in.
+  if (TLI->hasInlineStackProbe(*MF) && MBB.isLiveIn(AArch64::NZCV))
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yozhu wrote:

If we check `hasStackProbing()` here, do we need to do the same for the condition fixed in #81878 ?

https://github.com/llvm/llvm-project/pull/81879