[PowerPC][Power10] Implement Instruction definition and MC Tests for Load and Store VSX Vector with Zero or Sign Extend

[Conanap]

Summary

Includes instruction defintion and MC Tests for above instructions.

[amyk]

This LGTM.

[kamaub]

LGTM

[lei]

llvm/lib/Target/PowerPC/PPCInstrPrefix.td

431

Instead of creating a new section like this, why not add to the existing one on line 469? I realize that does not have Predicates = [IsISA3_1], but I think that is an oversight from previous patch and it should be added as those instructions are also part of ISA3.1.

439

same.

[Conanap]

Relocated some of the instructions to a more appropriate place.

[Conanap]

Relocated the isntr definitions to a more appropriate place.

[lei]

LGTM thx.

[bsaleil]

llvm/lib/Target/PowerPC/PPCInstrPrefix.td

947

Shouldn't mayStore be 0 instead of 1 here ?

[Conanap]

llvm/lib/Target/PowerPC/PPCInstrPrefix.td

947

yes, thanks; will fix on the commit

llvm/lib/Target/PowerPC/PPCInstrPrefix.td

multiclass 8LS_DForm_R_SI34_XT6_RA5_p<bits<5> opcode, dag OOL, dag IOL,
   def pc : 8LS_DForm_R_SI34_XT6_RA5<opcode, OOL, PCRel_IOL,
                                     !strconcat(asmstr, ", 1"), itin, []>,
                                     isPCRel;
 }
 
 def PrefixInstrs : Predicate<"Subtarget->hasPrefixInstrs()">;
 def IsISA3_1 : Predicate<"Subtarget->isISA3_1()">;
 
 let Predicates = [PrefixInstrs] in {
   let Interpretation64Bit = 1, isCodeGenOnly = 1 in {
     defm PADDI8 :
       MLS_DForm_R_SI34_RTA5_p<14, (outs g8rc:$RT), (ins g8rc:$RA, s34imm:$SI),
                               (ins immZero:$RA, s34imm:$SI),
                               "paddi $RT, $RA, $SI", IIC_LdStLFD>;
     let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in {
       def PLI8 : MLS_DForm_SI34_RT5<14, (outs g8rc:$RT),
                                     (ins s34imm:$SI),
                                     "pli $RT, $SI", IIC_IntSimple, []>;
     }
   }
   defm PADDI :
     MLS_DForm_R_SI34_RTA5_p<14, (outs gprc:$RT), (ins gprc:$RA, s34imm:$SI),
                             (ins immZero:$RA, s34imm:$SI),
                             "paddi $RT, $RA, $SI", IIC_LdStLFD>;
   let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in {
let Predicates = [IsISA3_1] in {
    def VCLRLB : VXForm_1<397, (outs vrrc:$vD), (ins vrrc:$vA, gprc:$rB),
                          "vclrlb $vD, $vA, $rB", IIC_VecGeneral,
                          [(set v16i8:$vD,
                                (int_ppc_altivec_vclrlb v16i8:$vA, i32:$rB))]>;
    def VCLRRB : VXForm_1<461, (outs vrrc:$vD), (ins vrrc:$vA, gprc:$rB),
                          "vclrrb $vD, $vA, $rB", IIC_VecGeneral,
                          [(set v16i8:$vD,
                                (int_ppc_altivec_vclrrb v16i8:$vA, i32:$rB))]>;
+
+  // The XFormMemOp flag for the following 8 instructions is set on
+  // the instruction format.
+  let mayLoad = 1, mayStore = 0 in {
+    def LXVRBX : X_XT6_RA5_RB5<31, 13, "lxvrbx", vsrc, []>;
+    def LXVRHX : X_XT6_RA5_RB5<31, 45, "lxvrhx", vsrc, []>;
+    def LXVRWX : X_XT6_RA5_RB5<31, 77, "lxvrwx", vsrc, []>;
+    def LXVRDX : X_XT6_RA5_RB5<31, 109, "lxvrdx", vsrc, []>;
+  }
+
+  let mayLoad = 0, mayStore = 1 in {
+    def STXVRBX : X_XS6_RA5_RB5<31, 141, "stxvrbx", vsrc, []>;
+    def STXVRHX : X_XS6_RA5_RB5<31, 173, "stxvrhx", vsrc, []>;
+    def STXVRWX : X_XS6_RA5_RB5<31, 205, "stxvrwx", vsrc, []>;
+    def STXVRDX : X_XS6_RA5_RB5<31, 237, "stxvrdx", vsrc, []>;
   }
+}
+
+
 
 //---------------------------- Anonymous Patterns ----------------------------//
 let Predicates = [IsISA3_1] in {
   def : Pat<(v16i8 (int_ppc_vsx_xxgenpcvbm v16i8:$VRB, imm:$IMM)),
             (v16i8 (COPY_TO_REGCLASS (XXGENPCVBM $VRB, imm:$IMM), VRRC))>;
   def : Pat<(v8i16 (int_ppc_vsx_xxgenpcvhm v8i16:$VRB, imm:$IMM)),
             (v8i16 (COPY_TO_REGCLASS (XXGENPCVHM $VRB, imm:$IMM), VRRC))>;
   def : Pat<(v4i32 (int_ppc_vsx_xxgenpcvwm v4i32:$VRB, imm:$IMM)),

llvm/test/MC/Disassembler/PowerPC/ppc64-encoding-ISA31.txt

 # CHECK: vinswrx 1, 2, 3
 0x10 0x22 0x1b 0x8f
 
 # CHECK: vinsdlx 1, 2, 3
 0x10 0x22 0x1a 0xcf
 
 # CHECK: vinsdrx 1, 2, 3
 0x10 0x22 0x1b 0xcf
+
+# CHECK: lxvrbx 32, 1, 2
+0x7c 0x01 0x10 0x1b
+
+# CHECK: lxvrhx 33, 1, 2
+0x7c 0x21 0x10 0x5b
+
+# CHECK: lxvrdx 34, 1, 2
+0x7c 0x41 0x10 0xdb
+
+# CHECK: lxvrwx 35, 1, 2
+0x7c 0x61 0x10 0x9b
+
+# CHECK: stxvrbx 32, 3, 1
+0x7c 0x03 0x09 0x1b
+
+# CHECK: stxvrhx 33, 3, 1
+0x7c 0x23 0x09 0x5b
+
+# CHECK: stxvrwx 34, 3, 1
+0x7c 0x43 0x09 0x9b
+
+# CHECK: stxvrdx 35, 3, 1
+0x7c 0x63 0x09 0xdb

llvm/test/MC/PowerPC/ppc64-encoding-ISA31.s

 # CHECK-LE: vinswrx 1, 2, 3                       # encoding: [0x8f,0x1b,0x22,0x10]
             vinswrx 1, 2, 3
 # CHECK-BE: vinsdlx 1, 2, 3                       # encoding: [0x10,0x22,0x1a,0xcf]
 # CHECK-LE: vinsdlx 1, 2, 3                       # encoding: [0xcf,0x1a,0x22,0x10]
             vinsdlx 1, 2, 3
 # CHECK-BE: vinsdrx 1, 2, 3                       # encoding: [0x10,0x22,0x1b,0xcf]
 # CHECK-LE: vinsdrx 1, 2, 3                       # encoding: [0xcf,0x1b,0x22,0x10]
             vinsdrx 1, 2, 3
+# CHECK-BE: lxvrbx 32, 1, 2                       # encoding: [0x7c,0x01,0x10,0x1b]
+# CHECK-LE: lxvrbx 32, 1, 2                       # encoding: [0x1b,0x10,0x01,0x7c]
+            lxvrbx 32, 1, 2
+# CHECK-BE: lxvrhx 33, 1, 2                       # encoding: [0x7c,0x21,0x10,0x5b]
+# CHECK-LE: lxvrhx 33, 1, 2                       # encoding: [0x5b,0x10,0x21,0x7c]
+            lxvrhx 33, 1, 2
+# CHECK-BE: lxvrdx 34, 1, 2                       # encoding: [0x7c,0x41,0x10,0xdb]
+# CHECK-LE: lxvrdx 34, 1, 2                       # encoding: [0xdb,0x10,0x41,0x7c]
+            lxvrdx 34, 1, 2
+# CHECK-BE: lxvrwx 35, 1, 2                       # encoding: [0x7c,0x61,0x10,0x9b]
+# CHECK-LE: lxvrwx 35, 1, 2                       # encoding: [0x9b,0x10,0x61,0x7c]
+            lxvrwx 35, 1, 2
+# CHECK-BE: stxvrbx 32, 3, 1                      # encoding: [0x7c,0x03,0x09,0x1b]
+# CHECK-LE: stxvrbx 32, 3, 1                      # encoding: [0x1b,0x09,0x03,0x7c]
+            stxvrbx 32, 3, 1
+# CHECK-BE: stxvrhx 33, 3, 1                      # encoding: [0x7c,0x23,0x09,0x5b]
+# CHECK-LE: stxvrhx 33, 3, 1                      # encoding: [0x5b,0x09,0x23,0x7c]
+            stxvrhx 33, 3, 1
+# CHECK-BE: stxvrwx 34, 3, 1                      # encoding: [0x7c,0x43,0x09,0x9b]
+# CHECK-LE: stxvrwx 34, 3, 1                      # encoding: [0x9b,0x09,0x43,0x7c]
+            stxvrwx 34, 3, 1
+# CHECK-BE: stxvrdx 35, 3, 1                      # encoding: [0x7c,0x63,0x09,0xdb]
+# CHECK-LE: stxvrdx 35, 3, 1                      # encoding: [0xdb,0x09,0x63,0x7c]
+            stxvrdx 35, 3, 1