[llvm] [AMDGPU] Use fake16 load/store with +real-true16 and sram-ecc (PR #161256)

[Matt Arsenault via llvm-commits]

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@@ -2595,6 +2595,10 @@ def UseFakeTrue16Insts : True16PredicateClass<"Subtarget->hasTrue16BitInsts() &&
   // FIXME When we default to RealTrue16 instead of Fake, change the line as follows.
   // AssemblerPredicate<(all_of FeatureTrue16BitInsts, (not FeatureRealTrue16Insts))>;
 
+def Use32BitLoadStoreWithTrue16Insts : True16PredicateClass<"Subtarget->useRealTrue16Insts() && "
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arsenm wrote:

Should name this for the property not the intended result 

https://github.com/llvm/llvm-project/pull/161256