[llvm] AMDGPU: Fix incorrectly selecting fp8/bf8 conversion intrinsics (PR #107291)

[Matt Arsenault via llvm-commits]

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@@ -599,8 +599,8 @@ class Cvt_F32_F8_Pat<SDPatternOperator node, int index,
     (inst_sdwa 0, $src, 0, 0, index)
 >;
 
-let SubtargetPredicate = isGFX9Only in {
-let OtherPredicates = [HasCvtFP8VOP1Bug] in {
+let SubtargetPredicate = HasFP8ConversionInsts in {
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arsenm wrote:

But is the bug really present on gfx12? 

https://github.com/llvm/llvm-project/pull/107291