[PATCH] D156204: [PowerPC][MC] Recognize tlbilx and its mnemonics

[Qiu Chaofan via Phabricator via llvm-commits]

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  Power ISA - Book III-E: TLB Invalidate Local Indexed
  
  tlbilx RA,RB [Category: Embedded.Phased In]
  
  Bit 9 and bit 10 are T.
  
  Extended:
  tlbilxlpid -> tlbilx 0,0,0
  tlbilxpid -> tlbilx 1,0,0
  tlbilxva RA,RB -> tlbilx 3,RA,RB
  tlbilxva RB -> tlbilx 3,0,RB


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D156204

Files:
  llvm/lib/Target/PowerPC/PPCInstrFormats.td
  llvm/lib/Target/PowerPC/PPCInstrInfo.td
  llvm/lib/Target/PowerPC/PPCScheduleP9.td
  llvm/test/MC/PowerPC/ppc64-encoding-bookIII.s


Index: llvm/test/MC/PowerPC/ppc64-encoding-bookIII.s
===================================================================
--- llvm/test/MC/PowerPC/ppc64-encoding-bookIII.s
+++ llvm/test/MC/PowerPC/ppc64-encoding-bookIII.s
@@ -170,6 +170,26 @@
 # CHECK-LE: tlbie 4                         # encoding: [0x64,0x22,0x00,0x7c]
             tlbie %r4
 
+# CHECK-BE: tlbilx 1, 4, 5                  # encoding: [0x7c,0x24,0x28,0x24]
+# CHECK-LE: tlbilx 1, 4, 5                  # encoding: [0x24,0x28,0x24,0x7c]
+            tlbilx 1, %r4, %r5
+
+# CHECK-BE: tlbilxlpid                      # encoding: [0x7c,0x00,0x00,0x24]
+# CHECK-LE: tlbilxlpid                      # encoding: [0x24,0x00,0x00,0x7c]
+            tlbilxlpid
+
+# CHECK-BE: tlbilxpid                       # encoding: [0x7c,0x20,0x00,0x24]
+# CHECK-LE: tlbilxpid                       # encoding: [0x24,0x00,0x20,0x7c]
+            tlbilxpid
+
+# CHECK-BE: tlbilxva 4, 5                   # encoding: [0x7c,0x64,0x28,0x24]
+# CHECK-LE: tlbilxva 4, 5                   # encoding: [0x24,0x28,0x64,0x7c]
+            tlbilxva %r4, %r5
+
+# CHECK-BE: tlbilxva 0, 5                   # encoding: [0x7c,0x60,0x28,0x24]
+# CHECK-LE: tlbilxva 0, 5                   # encoding: [0x24,0x28,0x60,0x7c]
+            tlbilxva %r5
+
 # CHECK-BE: rfi                             # encoding: [0x4c,0x00,0x00,0x64]
 # CHECK-LE: rfi                             # encoding: [0x64,0x00,0x00,0x4c]
             rfi
Index: llvm/lib/Target/PowerPC/PPCScheduleP9.td
===================================================================
--- llvm/lib/Target/PowerPC/PPCScheduleP9.td
+++ llvm/lib/Target/PowerPC/PPCScheduleP9.td
@@ -42,7 +42,7 @@
   // Power 9, or MMA, or paired vector mem ops,  or PC relative mem ops, or
   // instructions introduced after ISA 3.0.
   let UnsupportedFeatures = [HasSPE, PrefixInstrs, MMA,
-                             PairedVectorMemops,
+                             PairedVectorMemops, IsBookE,
                              PCRelativeMemops, IsISA3_1, IsISAFuture];
 }
 
Index: llvm/lib/Target/PowerPC/PPCInstrInfo.td
===================================================================
--- llvm/lib/Target/PowerPC/PPCInstrInfo.td
+++ llvm/lib/Target/PowerPC/PPCInstrInfo.td
@@ -4317,6 +4317,9 @@
 def TLBIVAX : XForm_tlb<786, (outs), (ins gprc:$RA, gprc:$RB), "tlbivax $RA, $RB",
                 IIC_LdStLoad>, Requires<[IsBookE]>;
 
+def TLBILX : XForm_tlbilx<18, (outs), (ins u2imm:$T, gprc:$RA, gprc:$RB),
+    "tlbilx $T, $RA, $RB", IIC_LdStLoad>, Requires<[IsBookE]>;
+
 def TLBRE : XForm_24_eieio<31, 946, (outs), (ins),
                            "tlbre", IIC_LdStLoad, []>, Requires<[IsBookE]>;
 
@@ -4680,6 +4683,12 @@
 def : InstAlias<"tlbwelo $RS, $A", (TLBWE2 gprc:$RS, gprc:$A, 1)>,
                 Requires<[IsPPC4xx]>;
 
+def : InstAlias<"tlbilxlpid", (TLBILX 0, R0, R0)>, Requires<[IsBookE]>;
+def : InstAlias<"tlbilxpid", (TLBILX 1, R0, R0)>, Requires<[IsBookE]>;
+def : InstAlias<"tlbilxva $RA, $RB", (TLBILX 3, gprc:$RA, gprc:$RB)>,
+                Requires<[IsBookE]>;
+def : InstAlias<"tlbilxva $RB", (TLBILX 3, R0, gprc:$RB)>, Requires<[IsBookE]>;
+
 def LAx : PPCAsmPseudo<"la $rA, $addr", (ins gprc:$rA, memri:$addr)>;
 
 def SUBI : PPCAsmPseudo<"subi $rA, $rB, $imm",
Index: llvm/lib/Target/PowerPC/PPCInstrFormats.td
===================================================================
--- llvm/lib/Target/PowerPC/PPCInstrFormats.td
+++ llvm/lib/Target/PowerPC/PPCInstrFormats.td
@@ -461,6 +461,12 @@
   let RST = 0;
 }
 
+class XForm_tlbilx<bits<10> xo, dag OOL, dag IOL, string asmstr,
+      InstrItinClass itin> : XForm_base_r3xo<31, xo, OOL, IOL, asmstr, itin, []> {
+  bits<5> T;
+  let RST = T;
+}
+
 class XForm_attn<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
                  InstrItinClass itin>
   : I<opcode, OOL, IOL, asmstr, itin> {


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