[clang] [llvm] [Clang][AArch64] Add customisable immediate range checking to NEON (PR #100278)

[via cfe-commits]

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@@ -76,17 +76,22 @@ let ArchGuard = "defined(__aarch64__) || 
defined(__arm64ec__)", TargetGuard = "f
   def SCALAR_FCVTPUH  : SInst<"vcvtp_u16", "(1U)1", "Sh">;
   def SCALAR_FCVTPUH1 : SInst<"vcvtp_u32", "(1U>)1", "Sh">;
   def SCALAR_FCVTPUH2 : SInst<"vcvtp_u64", "(1U>>)1", "Sh">;
-  let isVCVT_N = 1 in {
+  let isVCVT_N = 1, ImmChecks = [ImmCheck<1, ImmCheck1_16>] in {
     def SCALAR_SCVTFSHO : SInst<"vcvth_n_f16", "(1F)(1!)I", "sUs">;
     def SCALAR_SCVTFSH1O: SInst<"vcvth_n_f16", "(1F<)(1!)I", "iUi">;
     def SCALAR_SCVTFSH2O: SInst<"vcvth_n_f16", "(1F<<)(1!)I", "lUl">;
     def SCALAR_FCVTZSHO : SInst<"vcvt_n_s16", "(1S)1I", "Sh">;
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Lukacma wrote:

This should be with others vcvt_n intrinsics

https://github.com/llvm/llvm-project/pull/100278
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