[llvm] [AMDGPU] Always emit SI_KILL_I1_PSEUDO for uniform floating point branches. (PR #124028)

[Matt Arsenault via llvm-commits]

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@@ -2498,6 +2498,9 @@ def HasNotMADIntraFwdBug : Predicate<"!Subtarget->hasMADIntraFwdBug()">;
 def HasSALUFloatInsts : Predicate<"Subtarget->hasSALUFloatInsts()">,
   AssemblerPredicate<(all_of FeatureSALUFloatInsts)>;
 
+def NotHasSALUFloatInsts : Predicate<"!Subtarget->hasSALUFloatInsts()">,
+  AssemblerPredicate<(all_of (not FeatureSALUFloatInsts))>;
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arsenm wrote:

do we really not have none_of?

https://github.com/llvm/llvm-project/pull/124028