[PATCH] D112342: [RISCV] Add vcsr CSR name for V extension.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: asb, frasercrmck, evandro, HsiangKai, jrtc27, kito-cheng, khchen, arcbbb.
Herald added subscribers: achieveartificialintelligence, StephenFan, vkmr, luismarques, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, shiva0217, niosHD, sabuasal, simoncook, johnrusso, rbar, hiraditya.
craig.topper requested review of this revision.
Herald added a subscriber: MaskRay.
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Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D112342

Files:
  llvm/lib/Target/RISCV/RISCVSystemOperands.td
  llvm/test/MC/RISCV/rvv-user-csr-names.s


Index: llvm/test/MC/RISCV/rvv-user-csr-names.s
===================================================================
--- llvm/test/MC/RISCV/rvv-user-csr-names.s
+++ llvm/test/MC/RISCV/rvv-user-csr-names.s
@@ -56,6 +56,20 @@
 # uimm12
 csrrs t2, 0x00a, zero
 
+# vcsr
+# name
+# CHECK-INST: csrrs t1, vcsr, zero
+# CHECK-ENC:  encoding: [0x73,0x23,0xf0,0x00]
+# CHECK-INST-ALIAS: csrr t1, vcsr
+# uimm12
+# CHECK-INST: csrrs t2, vcsr, zero
+# CHECK-ENC:  encoding: [0xf3,0x23,0xf0,0x00]
+# CHECK-INST-ALIAS: csrr t2, vcsr
+# name
+csrrs t1, vcsr, zero
+# uimm12
+csrrs t2, 0x00f, zero
+
 # vl
 # name
 # CHECK-INST: csrrs t1, vl, zero
Index: llvm/lib/Target/RISCV/RISCVSystemOperands.td
===================================================================
--- llvm/lib/Target/RISCV/RISCVSystemOperands.td
+++ llvm/lib/Target/RISCV/RISCVSystemOperands.td
@@ -385,6 +385,7 @@
 def : SysReg<"vstart", 0x008>;
 def : SysReg<"vxsat", 0x009>;
 def : SysReg<"vxrm", 0x00A>;
+def : SysReg<"vcsr", 0x00F>;
 def : SysReg<"vl", 0xC20>;
 def : SysReg<"vtype", 0xC21>;
 def : SysReg<"vlenb", 0xC22>;


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