Add extension xandesperf for A25/AX25

Author: tclin914

clang/test/Driver/print-enabled-extensions/riscv-andes-a25.c

@@ -23,7 +23,8 @@
 // CHECK-NEXT:     zbb                  1.0       'Zbb' (Basic Bit-Manipulation)
 // CHECK-NEXT:     zbc                  1.0       'Zbc' (Carry-Less Multiplication)
 // CHECK-NEXT:     zbs                  1.0       'Zbs' (Single-Bit Instructions)
+// CHECK-NEXT:     xandesperf           5.0       'XAndesPerf' (Andes Performance Extension)
 // CHECK-EMPTY:
 // CHECK-NEXT: Experimental extensions
 // CHECK-EMPTY:
-// CHECK-NEXT: ISA String: rv32i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_b1p0_zicsr2p0_zifencei2p0_zmmul1p0_zaamo1p0_zalrsc1p0_zca1p0_zcd1p0_zcf1p0_zba1p0_zbb1p0_zbc1p0_zbs1p0
+// CHECK-NEXT: ISA String: rv32i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_b1p0_zicsr2p0_zifencei2p0_zmmul1p0_zaamo1p0_zalrsc1p0_zca1p0_zcd1p0_zcf1p0_zba1p0_zbb1p0_zbc1p0_zbs1p0_xandesperf5p0

clang/test/Driver/print-enabled-extensions/riscv-andes-ax25.c

@@ -22,7 +22,8 @@
 // CHECK-NEXT:     zbb                  1.0       'Zbb' (Basic Bit-Manipulation)
 // CHECK-NEXT:     zbc                  1.0       'Zbc' (Carry-Less Multiplication)
 // CHECK-NEXT:     zbs                  1.0       'Zbs' (Single-Bit Instructions)
+// CHECK-NEXT:     xandesperf           5.0       'XAndesPerf' (Andes Performance Extension)
 // CHECK-EMPTY:
 // CHECK-NEXT: Experimental extensions
 // CHECK-EMPTY:
-// CHECK-NEXT: ISA String: rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_b1p0_zicsr2p0_zifencei2p0_zmmul1p0_zaamo1p0_zalrsc1p0_zca1p0_zcd1p0_zba1p0_zbb1p0_zbc1p0_zbs1p0
+// CHECK-NEXT: ISA String: rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_b1p0_zicsr2p0_zifencei2p0_zmmul1p0_zaamo1p0_zalrsc1p0_zca1p0_zcd1p0_zba1p0_zbb1p0_zbc1p0_zbs1p0_xandesperf5p0

llvm/lib/Target/RISCV/RISCVProcessors.td

@@ -660,7 +660,8 @@ def ANDES_A25 : RISCVProcessorModel<"andes-a25",
                                      FeatureStdExtD,
                                      FeatureStdExtC,
                                      FeatureStdExtB,
-                                     FeatureStdExtZbc]>;
+                                     FeatureStdExtZbc,
+                                     FeatureVendorXAndesPerf]>;
 
 def ANDES_AX25 : RISCVProcessorModel<"andes-ax25",
                                      NoSchedModel,
@@ -674,7 +675,8 @@ def ANDES_AX25 : RISCVProcessorModel<"andes-ax25",
                                       FeatureStdExtD,
                                       FeatureStdExtC,
                                       FeatureStdExtB,
-                                      FeatureStdExtZbc]>;
+                                      FeatureStdExtZbc,
+                                      FeatureVendorXAndesPerf]>;
 
 def ANDES_N45 : RISCVProcessorModel<"andes-n45",
                                     NoSchedModel,