[clang] [llvm] [ARM][KCFI] Add backend support for Kernel Control-Flow Integrity (PR #163698)

[Kees Cook via llvm-commits]

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@@ -6535,6 +6535,15 @@ def CMP_SWAP_64 : PseudoInst<(outs GPRPair:$Rd, GPRPair:$addr_temp_out),
 
 def : Pat<(atomic_fence (timm), 0), (MEMBARRIER)>;
 
+//===----------------------------------------------------------------------===//
+// KCFI check pseudo-instruction.
+//===----------------------------------------------------------------------===//
+let isPseudo = 1 in {
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kees wrote:

Ah! Yes, quite true. I was looking too hard at the SEH stuff below, which does this differently. Fixed.

https://github.com/llvm/llvm-project/pull/163698