[llvm] [RISCV] Remove feature implication from TuneSiFive7. (PR #100694)

[Craig Topper via llvm-commits]

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@@ -1370,9 +1370,7 @@ def HasConditionalMoveFusion : Predicate<"Subtarget->hasConditionalMoveFusion()"
 def NoConditionalMoveFusion  : Predicate<"!Subtarget->hasConditionalMoveFusion()">;
 
 def TuneSiFive7 : SubtargetFeature<"sifive7", "RISCVProcFamily", "SiFive7",
-                                   "SiFive 7-Series processors",
-                                   [TuneNoDefaultUnroll,
-                                    TuneShortForwardBranchOpt]>;
+                                   "SiFive 7-Series processors">;
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topperc wrote:

I thought we were using it for vectorizer cost model, but maybe we haven't added the x280 specific tunings there yet? @arcbbb 

https://github.com/llvm/llvm-project/pull/100694