[RISCV][MC] Fix nf encoding for vector ld/st whole register

The three bit nf is one less than the number of NFIELDS,
so we manually decrement 1 for VS1/2/4/8R & VL1/2/4/8R.

Differential revision: https://reviews.llvm.org/D98185

(cherry picked from commit rG5cdb2e98608bf57c216ee7067e8a12d070c9e2bd)

4 files changed, 56 insertions, 56 deletions

diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoV.td b/llvm/lib/Target/RISCV/RISCVInstrInfoV.td
index 86fbc73..b3fc76a 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoV.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoV.td
@@ -504,19 +504,19 @@ def VSOXEI16_V : VIndexedStore<MOPSTIndexedOrder, LSWidth16, "vsoxei16.v">;
 def VSOXEI32_V : VIndexedStore<MOPSTIndexedOrder, LSWidth32, "vsoxei32.v">;
 def VSOXEI64_V : VIndexedStore<MOPSTIndexedOrder, LSWidth64, "vsoxei64.v">;
 
-defm VL1R : VWholeLoad<1, "vl1r">;
-defm VL2R : VWholeLoad<2, "vl2r">;
-defm VL4R : VWholeLoad<4, "vl4r">;
-defm VL8R : VWholeLoad<8, "vl8r">;
+defm VL1R : VWholeLoad<0, "vl1r">;
+defm VL2R : VWholeLoad<1, "vl2r">;
+defm VL4R : VWholeLoad<3, "vl4r">;
+defm VL8R : VWholeLoad<7, "vl8r">;
 def : InstAlias<"vl1r.v $vd, (${rs1})", (VL1RE8_V VR:$vd, GPR:$rs1)>;
 def : InstAlias<"vl2r.v $vd, (${rs1})", (VL2RE8_V VR:$vd, GPR:$rs1)>;
 def : InstAlias<"vl4r.v $vd, (${rs1})", (VL4RE8_V VR:$vd, GPR:$rs1)>;
 def : InstAlias<"vl8r.v $vd, (${rs1})", (VL8RE8_V VR:$vd, GPR:$rs1)>;
 
-def VS1R_V : VWholeStore<1, "vs1r.v">;
-def VS2R_V : VWholeStore<2, "vs2r.v">;
-def VS4R_V : VWholeStore<4, "vs4r.v">;
-def VS8R_V : VWholeStore<8, "vs8r.v">;
+def VS1R_V : VWholeStore<0, "vs1r.v">;
+def VS2R_V : VWholeStore<1, "vs2r.v">;
+def VS4R_V : VWholeStore<3, "vs4r.v">;
+def VS8R_V : VWholeStore<7, "vs8r.v">;
 
 // Vector Single-Width Integer Add and Subtract
 defm VADD_V : VALU_IV_V_X_I<"vadd", 0b000000>;
diff --git a/llvm/test/MC/RISCV/rvv/aliases.s b/llvm/test/MC/RISCV/rvv/aliases.s
index 2e5120c..ebe9e79 100644
--- a/llvm/test/MC/RISCV/rvv/aliases.s
+++ b/llvm/test/MC/RISCV/rvv/aliases.s
@@ -54,17 +54,17 @@ vmset.m v0
 # ALIAS:    vmnot.m v0, v1                  # encoding: [0x57,0xa0,0x10,0x76]
 # NO-ALIAS: vmnand.mm       v0, v1, v1      # encoding: [0x57,0xa0,0x10,0x76]
 vmnot.m v0, v1
-# ALIAS:    vl1r.v          v0, (a0)        # encoding: [0x07,0x00,0x85,0x22]
-# NO-ALIAS: vl1re8.v        v0, (a0)        # encoding: [0x07,0x00,0x85,0x22]
+# ALIAS:    vl1r.v          v0, (a0)        # encoding: [0x07,0x00,0x85,0x02]
+# NO-ALIAS: vl1re8.v        v0, (a0)        # encoding: [0x07,0x00,0x85,0x02]
 vl1r.v v0, (a0) 
-# ALIAS:    vl2r.v          v0, (a0)        # encoding: [0x07,0x00,0x85,0x42]
-# NO-ALIAS: vl2re8.v        v0, (a0)        # encoding: [0x07,0x00,0x85,0x42]
+# ALIAS:    vl2r.v          v0, (a0)        # encoding: [0x07,0x00,0x85,0x22]
+# NO-ALIAS: vl2re8.v        v0, (a0)        # encoding: [0x07,0x00,0x85,0x22]
 vl2r.v v0, (a0) 
-# ALIAS:    vl4r.v          v0, (a0)        # encoding: [0x07,0x00,0x85,0x82]
-# NO-ALIAS: vl4re8.v        v0, (a0)        # encoding: [0x07,0x00,0x85,0x82]
+# ALIAS:    vl4r.v          v0, (a0)        # encoding: [0x07,0x00,0x85,0x62]
+# NO-ALIAS: vl4re8.v        v0, (a0)        # encoding: [0x07,0x00,0x85,0x62]
 vl4r.v v0, (a0) 
-# ALIAS:    vl8r.v          v0, (a0)        # encoding: [0x07,0x00,0x85,0x02]
-# NO-ALIAS: vl8re8.v        v0, (a0)        # encoding: [0x07,0x00,0x85,0x02]
+# ALIAS:    vl8r.v          v0, (a0)        # encoding: [0x07,0x00,0x85,0xe2]
+# NO-ALIAS: vl8re8.v        v0, (a0)        # encoding: [0x07,0x00,0x85,0xe2]
 vl8r.v v0, (a0) 
 # ALIAS:    vneg.v          v2, v1, v0.t    # encoding: [0x57,0x41,0x10,0x0c]
 # NO-ALIAS: vrsub.vx        v2, v1, zero, v0.t # encoding: [0x57,0x41,0x10,0x0c]
diff --git a/llvm/test/MC/RISCV/rvv/load.s b/llvm/test/MC/RISCV/rvv/load.s
index 3d0dbb1..45a3881 100644
--- a/llvm/test/MC/RISCV/rvv/load.s
+++ b/llvm/test/MC/RISCV/rvv/load.s
@@ -256,96 +256,96 @@ vloxei64.v v8, (a0), v4
 
 vl1re8.v v8, (a0)
 # CHECK-INST: vl1re8.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x04,0x85,0x22]
+# CHECK-ENCODING: [0x07,0x04,0x85,0x02]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 04 85 22 <unknown>
+# CHECK-UNKNOWN: 07 04 85 02 <unknown>
 
 vl1re16.v v8, (a0)
 # CHECK-INST: vl1re16.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x54,0x85,0x22]
+# CHECK-ENCODING: [0x07,0x54,0x85,0x02]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 54 85 22 <unknown>
+# CHECK-UNKNOWN: 07 54 85 02 <unknown>
 
 vl1re32.v v8, (a0)
 # CHECK-INST: vl1re32.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x64,0x85,0x22]
+# CHECK-ENCODING: [0x07,0x64,0x85,0x02]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 64 85 22 <unknown>
+# CHECK-UNKNOWN: 07 64 85 02 <unknown>
 
 vl1re64.v v8, (a0)
 # CHECK-INST: vl1re64.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x74,0x85,0x22]
+# CHECK-ENCODING: [0x07,0x74,0x85,0x02]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 74 85 22 <unknown>
+# CHECK-UNKNOWN: 07 74 85 02 <unknown>
 
 vl2re8.v v8, (a0)
 # CHECK-INST: vl2re8.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x04,0x85,0x42]
+# CHECK-ENCODING: [0x07,0x04,0x85,0x22]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 04 85 42 <unknown>
+# CHECK-UNKNOWN: 07 04 85 22 <unknown>
 
 vl2re16.v v8, (a0)
 # CHECK-INST: vl2re16.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x54,0x85,0x42]
+# CHECK-ENCODING: [0x07,0x54,0x85,0x22]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 54 85 42 <unknown>
+# CHECK-UNKNOWN: 07 54 85 22 <unknown>
 
 vl2re32.v v8, (a0)
 # CHECK-INST: vl2re32.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x64,0x85,0x42]
+# CHECK-ENCODING: [0x07,0x64,0x85,0x22]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 64 85 42 <unknown>
+# CHECK-UNKNOWN: 07 64 85 22 <unknown>
 
 vl2re64.v v8, (a0)
 # CHECK-INST: vl2re64.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x74,0x85,0x42]
+# CHECK-ENCODING: [0x07,0x74,0x85,0x22]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 74 85 42 <unknown>
+# CHECK-UNKNOWN: 07 74 85 22 <unknown>
 
 vl4re8.v v8, (a0)
 # CHECK-INST: vl4re8.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x04,0x85,0x82]
+# CHECK-ENCODING: [0x07,0x04,0x85,0x62]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 04 85 82 <unknown>
+# CHECK-UNKNOWN: 07 04 85 62 <unknown>
 
 vl4re16.v v8, (a0)
 # CHECK-INST: vl4re16.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x54,0x85,0x82]
+# CHECK-ENCODING: [0x07,0x54,0x85,0x62]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 54 85 82 <unknown>
+# CHECK-UNKNOWN: 07 54 85 62 <unknown>
 
 vl4re32.v v8, (a0)
 # CHECK-INST: vl4re32.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x64,0x85,0x82]
+# CHECK-ENCODING: [0x07,0x64,0x85,0x62]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 64 85 82 <unknown>
+# CHECK-UNKNOWN: 07 64 85 62 <unknown>
 
 vl4re64.v v8, (a0)
 # CHECK-INST: vl4re64.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x74,0x85,0x82]
+# CHECK-ENCODING: [0x07,0x74,0x85,0x62]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 74 85 82 <unknown>
+# CHECK-UNKNOWN: 07 74 85 62 <unknown>
 
 vl8re8.v v8, (a0)
 # CHECK-INST: vl8re8.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x04,0x85,0x02]
+# CHECK-ENCODING: [0x07,0x04,0x85,0xe2]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 04 85 02 <unknown>
+# CHECK-UNKNOWN: 07 04 85 e2 <unknown>
 
 vl8re16.v v8, (a0)
 # CHECK-INST: vl8re16.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x54,0x85,0x02]
+# CHECK-ENCODING: [0x07,0x54,0x85,0xe2]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 54 85 02 <unknown>
+# CHECK-UNKNOWN: 07 54 85 e2 <unknown>
 
 vl8re32.v v8, (a0)
 # CHECK-INST: vl8re32.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x64,0x85,0x02]
+# CHECK-ENCODING: [0x07,0x64,0x85,0xe2]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 64 85 02 <unknown>
+# CHECK-UNKNOWN: 07 64 85 e2 <unknown>
 
 vl8re64.v v8, (a0)
 # CHECK-INST: vl8re64.v v8, (a0)
-# CHECK-ENCODING: [0x07,0x74,0x85,0x02]
+# CHECK-ENCODING: [0x07,0x74,0x85,0xe2]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 07 74 85 02 <unknown>
+# CHECK-UNKNOWN: 07 74 85 e2 <unknown>
diff --git a/llvm/test/MC/RISCV/rvv/store.s b/llvm/test/MC/RISCV/rvv/store.s
index e4795aa..b5a75ac 100644
--- a/llvm/test/MC/RISCV/rvv/store.s
+++ b/llvm/test/MC/RISCV/rvv/store.s
@@ -208,24 +208,24 @@ vsoxei64.v v24, (a0), v4
 
 vs1r.v v24, (a0)
 # CHECK-INST: vs1r.v v24, (a0)
-# CHECK-ENCODING: [0x27,0x0c,0x85,0x22]
+# CHECK-ENCODING: [0x27,0x0c,0x85,0x02]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 27 0c 85 22 <unknown>
+# CHECK-UNKNOWN: 27 0c 85 02 <unknown>
 
 vs2r.v v24, (a0)
 # CHECK-INST: vs2r.v v24, (a0)
-# CHECK-ENCODING: [0x27,0x0c,0x85,0x42]
+# CHECK-ENCODING: [0x27,0x0c,0x85,0x22]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 27 0c 85 42 <unknown>
+# CHECK-UNKNOWN: 27 0c 85 22 <unknown>
 
 vs4r.v v24, (a0)
 # CHECK-INST: vs4r.v v24, (a0)
-# CHECK-ENCODING: [0x27,0x0c,0x85,0x82]
+# CHECK-ENCODING: [0x27,0x0c,0x85,0x62]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 27 0c 85 82 <unknown>
+# CHECK-UNKNOWN: 27 0c 85 62 <unknown>
 
 vs8r.v v24, (a0)
 # CHECK-INST: vs8r.v v24, (a0)
-# CHECK-ENCODING: [0x27,0x0c,0x85,0x02]
+# CHECK-ENCODING: [0x27,0x0c,0x85,0xe2]
 # CHECK-ERROR: instruction requires the following: 'V' (Vector Instructions)
-# CHECK-UNKNOWN: 27 0c 85 02 <unknown>
+# CHECK-UNKNOWN: 27 0c 85 e2 <unknown>