[llvm] [Hexagon] Use fast-math flags (PR #162274)

[via llvm-commits]

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@@ -165,9 +163,8 @@ def UseHVXIEEEFP       : Predicate<"HST->useHVXIEEEFPOps()">,
 def UseHVXQFloat       : Predicate<"HST->useHVXQFloatOps()">,
                          AssemblerPredicate<(all_of ExtensionHVXQFloat)>;
 def UseHVXFloatingPoint: Predicate<"HST->useHVXFloatingPoint()">;
-def HasMemNoShuf       : Predicate<"HST->hasMemNoShuf()">,
-                         AssemblerPredicate<(all_of FeatureMemNoShuf)>;
-def UseUnsafeMath      : Predicate<"HST->useUnsafeMath()">;
+def HasMemNoShuf : Predicate<"HST->hasMemNoShuf()">,
+                   AssemblerPredicate<(all_of FeatureMemNoShuf)>;
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aankit-ca wrote:

Same as above

https://github.com/llvm/llvm-project/pull/162274