[RISCV] Remove +a from the attribute test for zacas and zabha. NFC.

zacas and zabha don't require the 'a' or 'zaamo' extension after
llvm#115694.

llvm/test/CodeGen/RISCV/attributes.ll

@@ -126,11 +126,11 @@
 ; RUN: llc -mtriple=riscv32 -mattr=+zfbfmin %s -o - | FileCheck --check-prefixes=CHECK,RV32ZFBFMIN %s
 ; RUN: llc -mtriple=riscv32 -mattr=+zvfbfmin %s -o - | FileCheck --check-prefixes=CHECK,RV32ZVFBFMIN %s
 ; RUN: llc -mtriple=riscv32 -mattr=+zvfbfwma %s -o - | FileCheck --check-prefixes=CHECK,RV32ZVFBFWMA %s
-; RUN: llc -mtriple=riscv32 -mattr=+a,+zacas %s -o - | FileCheck --check-prefix=RV32ZACAS %s
+; RUN: llc -mtriple=riscv32 -mattr=+zacas %s -o - | FileCheck --check-prefix=RV32ZACAS %s
 ; RUN: llc -mtriple=riscv32 -mattr=+experimental-zalasr %s -o - | FileCheck --check-prefix=RV32ZALASR %s
 ; RUN: llc -mtriple=riscv32 -mattr=+zama16b %s -o - | FileCheck --check-prefixes=CHECK,RV32ZAMA16B %s
 ; RUN: llc -mtriple=riscv32 -mattr=+experimental-zicfilp %s -o - | FileCheck --check-prefix=RV32ZICFILP %s
-; RUN: llc -mtriple=riscv32 -mattr=+a,+zabha %s -o - | FileCheck --check-prefix=RV32ZABHA %s
+; RUN: llc -mtriple=riscv32 -mattr=+zabha %s -o - | FileCheck --check-prefix=RV32ZABHA %s
 ; RUN: llc -mtriple=riscv32 -mattr=+zve32x -mattr=+experimental-zvbc32e  %s -o - | FileCheck --check-prefix=RV32ZVBC32E %s
 ; RUN: llc -mtriple=riscv32 -mattr=+zve32x -mattr=+experimental-zvkgs  %s -o - | FileCheck --check-prefix=RV32ZVKGS %s
 ; RUN: llc -mtriple=riscv32 -mattr=+ssnpm  %s -o - | FileCheck --check-prefix=RV32SSNPM %s
@@ -274,10 +274,10 @@
 ; RUN: llc -mtriple=riscv64 -mattr=+zfbfmin %s -o - | FileCheck --check-prefixes=CHECK,RV64ZFBFMIN %s
 ; RUN: llc -mtriple=riscv64 -mattr=+zvfbfmin %s -o - | FileCheck --check-prefixes=CHECK,RV64ZVFBFMIN %s
 ; RUN: llc -mtriple=riscv64 -mattr=+zvfbfwma %s -o - | FileCheck --check-prefixes=CHECK,RV64ZVFBFWMA %s
-; RUN: llc -mtriple=riscv64 -mattr=+a,+zacas %s -o - | FileCheck --check-prefix=RV64ZACAS %s
+; RUN: llc -mtriple=riscv64 -mattr=+zacas %s -o - | FileCheck --check-prefix=RV64ZACAS %s
 ; RUN: llc -mtriple=riscv64 -mattr=+experimental-zalasr %s -o - | FileCheck --check-prefix=RV64ZALASR %s
 ; RUN: llc -mtriple=riscv64 -mattr=+experimental-zicfilp %s -o - | FileCheck --check-prefix=RV64ZICFILP %s
-; RUN: llc -mtriple=riscv64 -mattr=+a,+zabha %s -o - | FileCheck --check-prefix=RV64ZABHA %s
+; RUN: llc -mtriple=riscv64 -mattr=+zabha %s -o - | FileCheck --check-prefix=RV64ZABHA %s
 ; RUN: llc -mtriple=riscv64 -mattr=+zve32x -mattr=+experimental-zvbc32e  %s -o - | FileCheck --check-prefix=RV64ZVBC32E %s
 ; RUN: llc -mtriple=riscv64 -mattr=+zve32x -mattr=+experimental-zvkgs  %s -o - | FileCheck --check-prefix=RV64ZVKGS %s
 ; RUN: llc -mtriple=riscv64 -mattr=+ssnpm  %s -o - | FileCheck --check-prefix=RV64SSNPM %s
@@ -428,11 +428,11 @@
 ; RV32ZFBFMIN: .attribute 5, "rv32i2p1_f2p2_zicsr2p0_zfbfmin1p0"
 ; RV32ZVFBFMIN: .attribute 5, "rv32i2p1_f2p2_zicsr2p0_zve32f1p0_zve32x1p0_zvfbfmin1p0_zvl32b1p0"
 ; RV32ZVFBFWMA: .attribute 5, "rv32i2p1_f2p2_zicsr2p0_zfbfmin1p0_zve32f1p0_zve32x1p0_zvfbfmin1p0_zvfbfwma1p0_zvl32b1p0"
-; RV32ZACAS: .attribute 5, "rv32i2p1_a2p1_zaamo1p0_zacas1p0"
+; RV32ZACAS: .attribute 5, "rv32i2p1_zaamo1p0_zacas1p0"
 ; RV32ZALASR: .attribute 5, "rv32i2p1_zalasr0p1"
 ; RV32ZAMA16B: .attribute 5, "rv32i2p1_zama16b1p0"
 ; RV32ZICFILP: .attribute 5, "rv32i2p1_zicfilp1p0_zicsr2p0"
-; RV32ZABHA: .attribute 5, "rv32i2p1_a2p1_zaamo1p0_zabha1p0"
+; RV32ZABHA: .attribute 5, "rv32i2p1_zaamo1p0_zabha1p0"
 ; RV32ZVBC32E: .attribute 5, "rv32i2p1_zicsr2p0_zvbc32e0p7_zve32x1p0_zvl32b1p0"
 ; RV32ZVKGS: .attribute 5, "rv32i2p1_zicsr2p0_zve32x1p0_zvkg1p0_zvkgs0p7_zvl32b1p0"
 ; RV32SSNPM: .attribute 5, "rv32i2p1_ssnpm1p0"
@@ -574,10 +574,10 @@
 ; RV64ZFBFMIN: .attribute 5, "rv64i2p1_f2p2_zicsr2p0_zfbfmin1p0"
 ; RV64ZVFBFMIN: .attribute 5, "rv64i2p1_f2p2_zicsr2p0_zve32f1p0_zve32x1p0_zvfbfmin1p0_zvl32b1p0"
 ; RV64ZVFBFWMA: .attribute 5, "rv64i2p1_f2p2_zicsr2p0_zfbfmin1p0_zve32f1p0_zve32x1p0_zvfbfmin1p0_zvfbfwma1p0_zvl32b1p0"
-; RV64ZACAS: .attribute 5, "rv64i2p1_a2p1_zaamo1p0_zacas1p0"
+; RV64ZACAS: .attribute 5, "rv64i2p1_zaamo1p0_zacas1p0"
 ; RV64ZALASR: .attribute 5, "rv64i2p1_zalasr0p1"
 ; RV64ZICFILP: .attribute 5, "rv64i2p1_zicfilp1p0_zicsr2p0"
-; RV64ZABHA: .attribute 5, "rv64i2p1_a2p1_zaamo1p0_zabha1p0"
+; RV64ZABHA: .attribute 5, "rv64i2p1_zaamo1p0_zabha1p0"
 ; RV64ZVBC32E: .attribute 5, "rv64i2p1_zicsr2p0_zvbc32e0p7_zve32x1p0_zvl32b1p0"
 ; RV64ZVKGS: .attribute 5, "rv64i2p1_zicsr2p0_zve32x1p0_zvkg1p0_zvkgs0p7_zvl32b1p0"
 ; RV64SSNPM: .attribute 5, "rv64i2p1_ssnpm1p0"