[llvm] 6d160a4 - [AMDGPU][TableGen][NFC] Combine predicates without using classes. (#82346)

[via llvm-commits]

Author: Ivan Kosarev
Date: 2024-02-21T11:45:36Z
New Revision: 6d160a49c2e7f36367de3f61f0460e28921450d5

URL: https://github.com/llvm/llvm-project/commit/6d160a49c2e7f36367de3f61f0460e28921450d5
DIFF: https://github.com/llvm/llvm-project/commit/6d160a49c2e7f36367de3f61f0460e28921450d5.diff

LOG: [AMDGPU][TableGen][NFC] Combine predicates without using classes. (#82346)

Saves generating ~1200 instances of the PredConcat TableGen class.

Also removes the default predicates from resulting predicate lists.

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/AMDGPUPredicateControl.td

Removed: 
    


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diff  --git a/llvm/lib/Target/AMDGPU/AMDGPUPredicateControl.td b/llvm/lib/Target/AMDGPU/AMDGPUPredicateControl.td
index 6c7c91ef464dfd..7c990aa6b2eb60 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUPredicateControl.td
+++ b/llvm/lib/Target/AMDGPU/AMDGPUPredicateControl.td
@@ -11,11 +11,6 @@ def TruePredicate : Predicate<"">;
 // FIXME: Tablegen should specially supports this
 def FalsePredicate : Predicate<"false">;
 
-// Add a predicate to the list if does not already exist to deduplicate it.
-class PredConcat<Predicate pred, list<Predicate> lst> {
-  list<Predicate> ret = !listconcat(lst, !listremove([pred], lst));
-}
-
 // Prevent using other kinds of predicates where True16 predicates are
 // expected by giving them their own class.
 class True16PredicateClass<string cond> : Predicate<cond>;
@@ -28,9 +23,8 @@ class PredicateControl {
   True16PredicateClass True16Predicate = NoTrue16Predicate;
   list<Predicate> OtherPredicates = [];
   list<Predicate> Predicates =
-      PredConcat<SubtargetPredicate,
-      PredConcat<AssemblerPredicate,
-      PredConcat<WaveSizePredicate,
-      PredConcat<True16Predicate,
-      OtherPredicates>.ret>.ret>.ret>.ret;
+      !foldl(OtherPredicates, [SubtargetPredicate, AssemblerPredicate,
+                               WaveSizePredicate, True16Predicate],
+             preds, p,
+             preds # !listremove([p], [TruePredicate, NoTrue16Predicate] # preds));
 }