[AArch64] Add FeatureFuseAdrpAdd for Ampere1/1A (#81293)

Both Ampere1 and Ampere1A support fusion of ADRP+ADD. This adds the missing feature to enable fusion-aware scheduling for this case.
llvm · Feb 9, 2024 · ff2e878 · ff2e878
1 parent 7b2eff6
commit ff2e878
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/llvm/lib/Target/AArch64/AArch64.td b/llvm/lib/Target/AArch64/AArch64.td
@@ -1349,6 +1349,7 @@ def TuneAmpere1 : SubtargetFeature<"ampere1", "ARMProcFamily", "Ampere1",
                                    "Ampere Computing Ampere-1 processors", [
                                    FeaturePostRAScheduler,
                                    FeatureFuseAES,
+                                   FeatureFuseAdrpAdd,
                                    FeatureAddrLSLFast,
                                    FeatureALULSLFast,
                                    FeatureAggressiveFMA,
@@ -1364,6 +1365,7 @@ def TuneAmpere1A : SubtargetFeature<"ampere1a", "ARMProcFamily", "Ampere1A",
                                     "Ampere Computing Ampere-1A processors", [
                                     FeaturePostRAScheduler,
                                     FeatureFuseAES,
+                                    FeatureFuseAdrpAdd,
                                     FeatureAddrLSLFast,
                                     FeatureALULSLFast,
                                     FeatureAggressiveFMA,