[clang] [llvm] [DAG] computeKnownFPClass - Add handling for AssertNoFPClass (PR #190185)

[Joao Victor Amorim Vieira via llvm-commits]

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@@ -29,3 +29,32 @@ define i1 @sqrt_neginf_v4f32(<4 x float> %a0, ptr %p1) {
   %res = tail call i1 @llvm.is.fpclass.f32(float %elt, i32 4)  ; 0x4 = "neginf"
   ret i1 %res
 }
+
+define i1 @demanded_elts_safe_lane(float %unknown) {
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joaovam wrote:

Hi @RKSimon, I have added some riscv tests to a new file, as I didn't know where to append them to. Thanks for your suggestion of commenting out the isKnownNeverNaN and checking what breaks.

https://github.com/llvm/llvm-project/pull/190185