[RISCV] Add MC tests for the User Vector CSRs

Make sure we can parse and print the user CSR names

Differential Revision: https://reviews.llvm.org/D91469

Author: topperc

llvm/test/MC/RISCV/rvv-user-csr-names.s

@@ -0,0 +1,99 @@
+# RUN: llvm-mc %s -triple=riscv32 -riscv-no-aliases -mattr=+f -show-encoding \
+# RUN:     | FileCheck -check-prefixes=CHECK-INST,CHECK-ENC %s
+# RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+v < %s \
+# RUN:     | llvm-objdump -d --mattr=+v - \
+# RUN:     | FileCheck -check-prefix=CHECK-INST-ALIAS %s
+#
+# RUN: llvm-mc %s -triple=riscv64 -riscv-no-aliases -mattr=+f -show-encoding \
+# RUN:     | FileCheck -check-prefixes=CHECK-INST,CHECK-ENC %s
+# RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+v < %s \
+# RUN:     | llvm-objdump -d --mattr=+v - \
+# RUN:     | FileCheck -check-prefix=CHECK-INST-ALIAS %s
+
+##################################
+# User Vector CSRs
+##################################
+
+# vstart
+# name
+# CHECK-INST: csrrs t1, vstart, zero
+# CHECK-ENC:  encoding: [0x73,0x23,0x80,0x00]
+# CHECK-INST-ALIAS: csrr t1, vstart
+# uimm12
+# CHECK-INST: csrrs t2, vstart, zero
+# CHECK-ENC:  encoding: [0xf3,0x23,0x80,0x00]
+# CHECK-INST-ALIAS: csrr t2, vstart
+# name
+csrrs t1, vstart, zero
+# uimm12
+csrrs t2, 0x008, zero
+
+# vxsat
+# name
+# CHECK-INST: csrrs t1, vxsat, zero
+# CHECK-ENC:  encoding: [0x73,0x23,0x90,0x00]
+# CHECK-INST-ALIAS: csrr t1, vxsat
+# uimm12
+# CHECK-INST: csrrs t2, vxsat, zero
+# CHECK-ENC:  encoding: [0xf3,0x23,0x90,0x00]
+# CHECK-INST-ALIAS: csrr t2, vxsat
+# name
+csrrs t1, vxsat, zero
+# uimm12
+csrrs t2, 0x009, zero
+
+# vxrm
+# name
+# CHECK-INST: csrrs t1, vxrm, zero
+# CHECK-ENC:  encoding: [0x73,0x23,0xa0,0x00]
+# CHECK-INST-ALIAS: csrr t1, vxrm
+# uimm12
+# CHECK-INST: csrrs t2, vxrm, zero
+# CHECK-ENC:  encoding: [0xf3,0x23,0xa0,0x00]
+# CHECK-INST-ALIAS: csrr t2, vxrm
+# name
+csrrs t1, vxrm, zero
+# uimm12
+csrrs t2, 0x00a, zero
+
+# vl
+# name
+# CHECK-INST: csrrs t1, vl, zero
+# CHECK-ENC:  encoding: [0x73,0x23,0x00,0xc2]
+# CHECK-INST-ALIAS: csrr t1, vl
+# uimm12
+# CHECK-INST: csrrs t2, vl, zero
+# CHECK-ENC:  encoding: [0xf3,0x23,0x00,0xc2]
+# CHECK-INST-ALIAS: csrr t2, vl
+# name
+csrrs t1, vl, zero
+# uimm12
+csrrs t2, 0xc20, zero
+
+# vtype
+# name
+# CHECK-INST: csrrs t1, vtype, zero
+# CHECK-ENC:  encoding: [0x73,0x23,0x10,0xc2]
+# CHECK-INST-ALIAS: csrr t1, vtype
+# uimm12
+# CHECK-INST: csrrs t2, vtype, zero
+# CHECK-ENC:  encoding: [0xf3,0x23,0x10,0xc2]
+# CHECK-INST-ALIAS: csrr t2, vtype
+# name
+csrrs t1, vtype, zero
+# uimm12
+csrrs t2, 0xc21, zero
+
+# vlenb
+# name
+# CHECK-INST: csrrs t1, vlenb, zero
+# CHECK-ENC:  encoding: [0x73,0x23,0x20,0xc2]
+# CHECK-INST-ALIAS: csrr t1, vlenb
+# uimm12
+# CHECK-INST: csrrs t2, vlenb, zero
+# CHECK-ENC:  encoding: [0xf3,0x23,0x20,0xc2]
+# CHECK-INST-ALIAS: csrr t2, vlenb
+# name
+csrrs t1, vlenb, zero
+# uimm12
+csrrs t2, 0xc22, zero