[clang] [llvm] [ARM, AArch64] Don't put BTI at asm goto branch targets (PR #141562)

[Peter Smith via cfe-commits]

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@@ -3399,7 +3399,10 @@ void SelectionDAGBuilder::visitCallBr(const CallBrInst &I) {
     BasicBlock *Dest = I.getIndirectDest(i);
     MachineBasicBlock *Target = FuncInfo.getMBB(Dest);
     Target->setIsInlineAsmBrIndirectTarget();
-    Target->setMachineBlockAddressTaken();
+    // If there was a type of asm goto statement that was permitted to
+    // use an indirect call instruction to jump to its labels, then we
+    // would also have to call Target->setMachineBlockAddressTaken()
+    // here to mark the target block as requiring a BTI.
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smithp35 wrote:

Worth adding a newline to imply that the comment isn't applying to the next line.

https://github.com/llvm/llvm-project/pull/141562