Implement asm support for a few PowerPC bookIII that are needed for assembling

FreeBSD kernel. llvm-svn: 190618
2013-09-12 17:50:54 +00:00 · 2013-09-12 17:50:54 +00:00 · 62cb63543b
parent f2189bf311
commit 62cb63543b
5 changed files with 219 additions and 0 deletions
--- a/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
+++ b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
@ -1360,6 +1360,8 @@ unsigned PPCAsmParser::validateTargetOperandClass(MCParsedAsmOperand *AsmOp,
  switch (Kind) {
    case MCK_0: ImmVal = 0; break;
    case MCK_1: ImmVal = 1; break;
+    case MCK_2: ImmVal = 2; break;
+    case MCK_3: ImmVal = 3; break;
    default: return Match_InvalidOperand;
  }

--- a/llvm/lib/Target/PowerPC/PPCInstrFormats.td
+++ b/llvm/lib/Target/PowerPC/PPCInstrFormats.td
@ -398,6 +398,13 @@ class XForm_1a<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
  let RST = 0;
 }

+class XForm_rs<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
+              InstrItinClass itin, list<dag> pattern>
+  : XForm_base_r3xo<opcode, xo, OOL, IOL, asmstr, itin, pattern> {
+  let A = 0;
+  let B = 0;
+}
+
 class XForm_6<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
              InstrItinClass itin, list<dag> pattern> 
  : XForm_base_r3xo_swapped<opcode, xo, OOL, IOL, asmstr, itin> {
@ -438,6 +445,17 @@ class XForm_16<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
  let Inst{31}    = 0;
 }

+class XForm_mtmsr<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
+                InstrItinClass itin>
+         : I<opcode, OOL, IOL, asmstr, itin> {
+  bits<5> RS;
+  bits<1> L;
+
+  let Inst{6-10} = RS;
+  let Inst{15} = L;
+  let Inst{21-30} = xo;
+}
+
 class XForm_16_ext<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
                   InstrItinClass itin>
  : XForm_16<opcode, xo, OOL, IOL, asmstr, itin> {
@ -534,6 +552,21 @@ class XForm_43<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
  let Inst{31}    = RC;
 }

+class XForm_0<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
+              InstrItinClass itin, list<dag> pattern>
+  : XForm_base_r3xo<opcode, xo, OOL, IOL, asmstr, itin, pattern> {
+  let RST = 0;
+  let A = 0;
+  let B = 0;
+}
+
+class XForm_16b<bits<6> opcode, bits<10> xo, dag OOL, dag IOL, string asmstr,
+              InstrItinClass itin, list<dag> pattern>
+  : XForm_base_r3xo<opcode, xo, OOL, IOL, asmstr, itin, pattern> {
+  let RST = 0;
+  let A = 0;
+}
+
 // DCB_Form - Form X instruction, used for dcb* instructions.
 class DCB_Form<bits<10> xo, bits<5> immfield, dag OOL, dag IOL, string asmstr, 
                      InstrItinClass itin, list<dag> pattern>
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
@ -2319,6 +2319,35 @@ def EIEIO : XForm_24_eieio<31, 854, (outs), (ins),
 def WAIT : XForm_24_sync<31, 62, (outs), (ins i32imm:$L),
                         "wait $L", LdStLoad, []>;

+def MTMSR: XForm_mtmsr<31, 146, (outs), (ins gprc:$RS, i32imm:$L),
+                    "mtmsr $RS, $L", SprMTMSR>;
+
+def MFMSR : XForm_rs<31, 83, (outs gprc:$RT), (ins),
+                  "mfmsr $RT", SprMFMSR, []>;
+
+def MTMSRD : XForm_mtmsr<31, 178, (outs), (ins gprc:$RS, i32imm:$L),
+                    "mtmsrd $RS, $L", SprMTMSRD>;
+
+def SLBIE : XForm_16b<31, 434, (outs), (ins gprc:$RB),
+                        "slbie $RB", SprSLBIE, []>;
+
+def SLBMTE : XForm_26<31, 402, (outs), (ins gprc:$RS, gprc:$RB),
+                    "slbmte $RS, $RB", SprSLBMTE, []>;
+
+def SLBMFEE : XForm_26<31, 915, (outs gprc:$RT), (ins gprc:$RB),
+                       "slbmfee $RT, $RB", SprSLBMFEE, []>;
+
+def SLBIA : XForm_0<31, 498, (outs), (ins), "slbia", SprSLBIA, []>;
+
+def TLBSYNC : XForm_0<31, 566, (outs), (ins),
+                        "tlbsync", SprTLBSYNC, []>;
+
+def TLBIEL : XForm_16b<31, 274, (outs), (ins gprc:$RB),
+                          "tlbiel $RB", SprTLBIEL, []>;
+
+def TLBIE : XForm_26<31, 306, (outs), (ins gprc:$RS, gprc:$RB),
+                          "tlbie $RB,$RS", SprTLBIE, []>;
+
 //===----------------------------------------------------------------------===//
 // PowerPC Assembler Instruction Aliases
 //
@ -2387,6 +2416,46 @@ def : InstAlias<"sub. $rA, $rB, $rC", (SUBF8o g8rc:$rA, g8rc:$rC, g8rc:$rB)>;
 def : InstAlias<"subc $rA, $rB, $rC", (SUBFC8 g8rc:$rA, g8rc:$rC, g8rc:$rB)>;
 def : InstAlias<"subc. $rA, $rB, $rC", (SUBFC8o g8rc:$rA, g8rc:$rC, g8rc:$rB)>;

+def : InstAlias<"mtmsrd $RS", (MTMSRD gprc:$RS, 0)>;
+def : InstAlias<"mtmsr $RS", (MTMSR gprc:$RS, 0)>;
+
+def : InstAlias<"mfsprg $RT, 0", (MFSPR gprc:$RT, 272)>;
+def : InstAlias<"mfsprg $RT, 1", (MFSPR gprc:$RT, 273)>;
+def : InstAlias<"mfsprg $RT, 2", (MFSPR gprc:$RT, 274)>;
+def : InstAlias<"mfsprg $RT, 3", (MFSPR gprc:$RT, 275)>;
+
+def : InstAlias<"mfsprg0 $RT", (MFSPR gprc:$RT, 272)>;
+def : InstAlias<"mfsprg1 $RT", (MFSPR gprc:$RT, 273)>;
+def : InstAlias<"mfsprg2 $RT", (MFSPR gprc:$RT, 274)>;
+def : InstAlias<"mfsprg3 $RT", (MFSPR gprc:$RT, 275)>;
+
+def : InstAlias<"mtsprg 0, $RT", (MTSPR 272, gprc:$RT)>;
+def : InstAlias<"mtsprg 1, $RT", (MTSPR 273, gprc:$RT)>;
+def : InstAlias<"mtsprg 2, $RT", (MTSPR 274, gprc:$RT)>;
+def : InstAlias<"mtsprg 3, $RT", (MTSPR 275, gprc:$RT)>;
+
+def : InstAlias<"mtsprg0 $RT", (MTSPR 272, gprc:$RT)>;
+def : InstAlias<"mtsprg1 $RT", (MTSPR 273, gprc:$RT)>;
+def : InstAlias<"mtsprg2 $RT", (MTSPR 274, gprc:$RT)>;
+def : InstAlias<"mtsprg3 $RT", (MTSPR 275, gprc:$RT)>;
+
+def : InstAlias<"mtasr $RS", (MTSPR 280, gprc:$RS)>;
+
+def : InstAlias<"mfdec $RT", (MFSPR gprc:$RT, 22)>;
+def : InstAlias<"mtdec $RT", (MTSPR 22, gprc:$RT)>;
+
+def : InstAlias<"mfpvr $RT", (MFSPR gprc:$RT, 287)>;
+
+def : InstAlias<"mfsdr1 $RT", (MFSPR gprc:$RT, 25)>;
+def : InstAlias<"mtsdr1 $RT", (MTSPR 25, gprc:$RT)>;
+
+def : InstAlias<"mfsrr0 $RT", (MFSPR gprc:$RT, 26)>;
+def : InstAlias<"mfsrr1 $RT", (MFSPR gprc:$RT, 27)>;
+def : InstAlias<"mtsrr0 $RT", (MTSPR 26, gprc:$RT)>;
+def : InstAlias<"mtsrr1 $RT", (MTSPR 27, gprc:$RT)>;
+
+def : InstAlias<"tlbie $RB", (TLBIE R0, gprc:$RB)>;
+
 def EXTLWI : PPCAsmPseudo<"extlwi $rA, $rS, $n, $b",
                          (ins gprc:$rA, gprc:$rS, u5imm:$n, u5imm:$b)>;
 def EXTLWIo : PPCAsmPseudo<"extlwi. $rA, $rS, $n, $b",
--- a/llvm/lib/Target/PowerPC/PPCSchedule.td
+++ b/llvm/lib/Target/PowerPC/PPCSchedule.td
@ -108,6 +108,14 @@ def VecPerm      : InstrItinClass;
 def VecFPRound   : InstrItinClass;
 def VecVSL       : InstrItinClass;
 def VecVSR       : InstrItinClass;
+def SprMTMSRD    : InstrItinClass;
+def SprSLIE      : InstrItinClass;
+def SprSLBIE     : InstrItinClass;
+def SprSLBMTE    : InstrItinClass;
+def SprSLBMFEE   : InstrItinClass;
+def SprSLBIA     : InstrItinClass;
+def SprTLBIEL    : InstrItinClass;
+def SprTLBIE     : InstrItinClass;

 //===----------------------------------------------------------------------===//
 // Processor instruction itineraries.
--- a/llvm/test/MC/PowerPC/ppc64-encoding-bookIII.s
+++ b/llvm/test/MC/PowerPC/ppc64-encoding-bookIII.s
@ -0,0 +1,107 @@
+# RUN: llvm-mc -triple powerpc64-unknown-unknown --show-encoding %s | FileCheck %s
+
+# CHECK: mtmsr 4, 0                       # encoding: [0x7c,0x80,0x01,0x24]
+         mtmsr %r4
+
+# CHECK: mtmsr 4, 1                       # encoding: [0x7c,0x81,0x01,0x24]
+         mtmsr %r4, 1
+
+# CHECK: mfmsr 4                         # encoding: [0x7c,0x80,0x00,0xa6]
+         mfmsr %r4
+
+# CHECK: mtmsrd 4, 0                     # encoding: [0x7c,0x80,0x01,0x64]
+         mtmsrd %r4
+
+# CHECK: mtmsrd 4, 1                     # encoding: [0x7c,0x81,0x01,0x64]
+         mtmsrd %r4, 1
+
+# CHECK: mfspr 4, 272                    # encoding: [0x7c,0x90,0x42,0xa6]
+         mfsprg %r4, 0
+
+# CHECK: mfspr 4, 273                    # encoding: [0x7c,0x91,0x42,0xa6]
+         mfsprg %r4, 1
+
+# CHECK: mfspr 4, 274                    # encoding: [0x7c,0x92,0x42,0xa6]
+         mfsprg %r4, 2
+
+# CHECK: mfspr 4, 275                    # encoding: [0x7c,0x93,0x42,0xa6]
+         mfsprg %r4, 3
+
+# CHECK: mtspr 272, 4                    # encoding: [0x7c,0x90,0x43,0xa6]
+         mtsprg 0, %r4
+
+# CHECK: mtspr 273, 4                    # encoding: [0x7c,0x91,0x43,0xa6]
+         mtsprg 1, %r4
+
+# CHECK: mtspr 274, 4                    # encoding: [0x7c,0x92,0x43,0xa6]
+         mtsprg 2, %r4
+
+# CHECK: mtspr 275, 4                    # encoding: [0x7c,0x93,0x43,0xa6]
+         mtsprg 3, %r4
+
+# CHECK: mtspr 272, 4                    # encoding: [0x7c,0x90,0x43,0xa6]
+         mtsprg0 %r4
+
+# CHECK: mtspr 273, 4                    # encoding: [0x7c,0x91,0x43,0xa6]
+         mtsprg1 %r4
+
+# CHECK: mtspr 274, 4                    # encoding: [0x7c,0x92,0x43,0xa6]
+         mtsprg2 %r4
+
+# CHECK: mtspr 275, 4                    # encoding: [0x7c,0x93,0x43,0xa6]
+         mtsprg3 %r4
+
+# CHECK: mtspr 280, 4                    # encoding: [0x7c,0x98,0x43,0xa6]
+         mtasr %r4
+
+# CHECK: mfspr 4, 22                     # encoding: [0x7c,0x96,0x02,0xa6]
+         mfdec %r4
+
+# CHECK: mtspr 22, 4                     # encoding: [0x7c,0x96,0x03,0xa6]
+         mtdec %r4
+
+# CHECK: mfspr 4, 287                    # encoding: [0x7c,0x9f,0x42,0xa6]
+         mfpvr %r4
+
+# CHECK: mfspr 4, 25                     # encoding: [0x7c,0x99,0x02,0xa6]
+         mfsdr1 %r4
+
+# CHECK: mtspr 25, 4                     # encoding: [0x7c,0x99,0x03,0xa6]
+         mtsdr1 %r4
+
+# CHECK: mfspr 4, 26                     # encoding: [0x7c,0x9a,0x02,0xa6]
+         mfsrr0 %r4
+
+# CHECK: mtspr 26, 4                     # encoding: [0x7c,0x9a,0x03,0xa6]
+         mtsrr0 %r4
+
+# CHECK: mfspr 4, 27                     # encoding: [0x7c,0x9b,0x02,0xa6]
+         mfsrr1 %r4
+
+# CHECK: mtspr 27, 4                     # encoding: [0x7c,0x9b,0x03,0xa6]
+         mtsrr1 %r4
+
+# CHECK: slbie 4                         # encoding: [0x7c,0x00,0x23,0x64]
+         slbie %r4
+
+# CHECK: slbmte 4, 5                     # encoding: [0x7c,0x80,0x2b,0x24]
+         slbmte %r4, %r5
+
+# CHECK: slbmfee 4, 5                    # encoding: [0x7c,0x80,0x2f,0x26]
+         slbmfee %r4, %r5
+
+# CHECK: slbia                           # encoding: [0x7c,0x00,0x03,0xe4]
+         slbia
+
+# CHECK: tlbsync                         # encoding: [0x7c,0x00,0x04,0x6c]
+         tlbsync
+
+# CHECK: tlbiel 4                        # encoding: [0x7c,0x00,0x22,0x24]
+         tlbiel %r4
+
+# CHECK: tlbie 4,0                       # encoding: [0x7c,0x00,0x22,0x64]
+         tlbie %r4, 0
+
+# CHECK: tlbie 4,0                       # encoding: [0x7c,0x00,0x22,0x64]
+         tlbie %r4
+