diff options
Diffstat (limited to 'lib/Target/SystemZ/SystemZInstrFormats.td')
| -rw-r--r-- | lib/Target/SystemZ/SystemZInstrFormats.td | 241 |
1 files changed, 228 insertions, 13 deletions
diff --git a/lib/Target/SystemZ/SystemZInstrFormats.td b/lib/Target/SystemZ/SystemZInstrFormats.td index 954df11..a8efe16 100644 --- a/lib/Target/SystemZ/SystemZInstrFormats.td +++ b/lib/Target/SystemZ/SystemZInstrFormats.td @@ -308,10 +308,11 @@ class InstRRF<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern> bits<4> R1; bits<4> R2; bits<4> R3; + bits<4> R4; let Inst{31-16} = op; let Inst{15-12} = R3; - let Inst{11-8} = 0; + let Inst{11-8} = R4; let Inst{7-4} = R1; let Inst{3-0} = R2; } @@ -539,6 +540,10 @@ class InstSS<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern> // One output operand and five input operands. The first two operands // are registers and the other three are immediates. // +// Prefetch: +// One 4-bit immediate operand and one address operand. The immediate +// operand is 1 for a load prefetch and 2 for a store prefetch. +// // The format determines which input operands are tied to output operands, // and also determines the shape of any address operand. // @@ -552,7 +557,7 @@ class InstSS<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern> class InherentRRE<string mnemonic, bits<16> opcode, RegisterOperand cls, dag src> : InstRRE<opcode, (outs cls:$R1), (ins), - mnemonic#"r\t$R1", + mnemonic#"\t$R1", [(set cls:$R1, src)]> { let R2 = 0; } @@ -626,27 +631,33 @@ class StoreMultipleRSY<string mnemonic, bits<16> opcode, RegisterOperand cls> let mayStore = 1; } +// StoreSI* instructions are used to store an integer to memory, but the +// addresses are more restricted than for normal stores. If we are in the +// situation of having to force either the address into a register or the +// constant into a register, it's usually better to do the latter. +// We therefore match the address in the same way as a normal store and +// only use the StoreSI* instruction if the matched address is suitable. class StoreSI<string mnemonic, bits<8> opcode, SDPatternOperator operator, - Immediate imm, AddressingMode mode = bdaddr12only> - : InstSI<opcode, (outs), (ins mode:$BD1, imm:$I2), + Immediate imm> + : InstSI<opcode, (outs), (ins mviaddr12pair:$BD1, imm:$I2), mnemonic#"\t$BD1, $I2", - [(operator imm:$I2, mode:$BD1)]> { + [(operator imm:$I2, mviaddr12pair:$BD1)]> { let mayStore = 1; } class StoreSIY<string mnemonic, bits<16> opcode, SDPatternOperator operator, - Immediate imm, AddressingMode mode = bdaddr20only> - : InstSIY<opcode, (outs), (ins mode:$BD1, imm:$I2), + Immediate imm> + : InstSIY<opcode, (outs), (ins mviaddr20pair:$BD1, imm:$I2), mnemonic#"\t$BD1, $I2", - [(operator imm:$I2, mode:$BD1)]> { + [(operator imm:$I2, mviaddr20pair:$BD1)]> { let mayStore = 1; } class StoreSIL<string mnemonic, bits<16> opcode, SDPatternOperator operator, Immediate imm> - : InstSIL<opcode, (outs), (ins bdaddr12only:$BD1, imm:$I2), + : InstSIL<opcode, (outs), (ins mviaddr12pair:$BD1, imm:$I2), mnemonic#"\t$BD1, $I2", - [(operator imm:$I2, bdaddr12only:$BD1)]> { + [(operator imm:$I2, mviaddr12pair:$BD1)]> { let mayStore = 1; } @@ -654,9 +665,9 @@ multiclass StoreSIPair<string mnemonic, bits<8> siOpcode, bits<16> siyOpcode, SDPatternOperator operator, Immediate imm> { let DispKey = mnemonic in { let DispSize = "12" in - def "" : StoreSI<mnemonic, siOpcode, operator, imm, bdaddr12pair>; + def "" : StoreSI<mnemonic, siOpcode, operator, imm>; let DispSize = "20" in - def Y : StoreSIY<mnemonic#"y", siyOpcode, operator, imm, bdaddr20pair>; + def Y : StoreSIY<mnemonic#"y", siyOpcode, operator, imm>; } } @@ -719,8 +730,14 @@ class UnaryRRF<string mnemonic, bits<16> opcode, RegisterOperand cls1, mnemonic#"r\t$R1, $R3, $R2", []> { let OpKey = mnemonic ## cls1; let OpType = "reg"; + let R4 = 0; } +class UnaryRRF4<string mnemonic, bits<16> opcode, RegisterOperand cls1, + RegisterOperand cls2> + : InstRRF<opcode, (outs cls1:$R1), (ins uimm8zx4:$R3, cls2:$R2, uimm8zx4:$R4), + mnemonic#"\t$R1, $R3, $R2, $R4", []>; + // These instructions are generated by if conversion. The old value of R1 // is added as an implicit use. class CondUnaryRRF<string mnemonic, bits<16> opcode, RegisterOperand cls1, @@ -729,6 +746,7 @@ class CondUnaryRRF<string mnemonic, bits<16> opcode, RegisterOperand cls1, mnemonic#"r$R3\t$R1, $R2", []>, Requires<[FeatureLoadStoreOnCond]> { let CCMaskLast = 1; + let R4 = 0; } // Like CondUnaryRRF, but used for the raw assembly form. The condition-code @@ -740,6 +758,7 @@ class AsmCondUnaryRRF<string mnemonic, bits<16> opcode, RegisterOperand cls1, Requires<[FeatureLoadStoreOnCond]> { let Constraints = "$R1 = $R1src"; let DisableEncoding = "$R1src"; + let R4 = 0; } // Like CondUnaryRRF, but with a fixed CC mask. @@ -751,6 +770,7 @@ class FixedCondUnaryRRF<string mnemonic, bits<16> opcode, RegisterOperand cls1, let Constraints = "$R1 = $R1src"; let DisableEncoding = "$R1src"; let R3 = ccmask; + let R4 = 0; } class UnaryRI<string mnemonic, bits<12> opcode, SDPatternOperator operator, @@ -898,13 +918,16 @@ class BinaryRRF<string mnemonic, bits<16> opcode, SDPatternOperator operator, [(set cls1:$R1, (operator cls1:$R3, cls2:$R2))]> { let OpKey = mnemonic ## cls1; let OpType = "reg"; + let R4 = 0; } class BinaryRRFK<string mnemonic, bits<16> opcode, SDPatternOperator operator, RegisterOperand cls1, RegisterOperand cls2> : InstRRF<opcode, (outs cls1:$R1), (ins cls1:$R2, cls2:$R3), mnemonic#"rk\t$R1, $R2, $R3", - [(set cls1:$R1, (operator cls1:$R2, cls2:$R3))]>; + [(set cls1:$R1, (operator cls1:$R2, cls2:$R3))]> { + let R4 = 0; +} multiclass BinaryRRAndK<string mnemonic, bits<8> opcode1, bits<16> opcode2, SDPatternOperator operator, RegisterOperand cls1, @@ -1285,6 +1308,22 @@ class RotateSelectRIEf<string mnemonic, bits<16> opcode, RegisterOperand cls1, let DisableEncoding = "$R1src"; } +class PrefetchRXY<string mnemonic, bits<16> opcode, SDPatternOperator operator> + : InstRXY<opcode, (outs), (ins uimm8zx4:$R1, bdxaddr20only:$XBD2), + mnemonic##"\t$R1, $XBD2", + [(operator uimm8zx4:$R1, bdxaddr20only:$XBD2)]>; + +class PrefetchRILPC<string mnemonic, bits<12> opcode, + SDPatternOperator operator> + : InstRIL<opcode, (outs), (ins uimm8zx4:$R1, pcrel32:$I2), + mnemonic##"\t$R1, $I2", + [(operator uimm8zx4:$R1, pcrel32:$I2)]> { + // We want PC-relative addresses to be tried ahead of BD and BDX addresses. + // However, BDXs have two extra operands and are therefore 6 units more + // complex. + let AddedComplexity = 7; +} + // A floating-point load-and test operation. Create both a normal unary // operation and one that acts as a comparison against zero. multiclass LoadAndTestRRE<string mnemonic, bits<16> opcode, @@ -1310,6 +1349,100 @@ class Pseudo<dag outs, dag ins, list<dag> pattern> let isCodeGenOnly = 1; } +// Like UnaryRI, but expanded after RA depending on the choice of register. +class UnaryRIPseudo<SDPatternOperator operator, RegisterOperand cls, + Immediate imm> + : Pseudo<(outs cls:$R1), (ins imm:$I2), + [(set cls:$R1, (operator imm:$I2))]>; + +// Like UnaryRXY, but expanded after RA depending on the choice of register. +class UnaryRXYPseudo<string key, SDPatternOperator operator, + RegisterOperand cls, bits<5> bytes, + AddressingMode mode = bdxaddr20only> + : Pseudo<(outs cls:$R1), (ins mode:$XBD2), + [(set cls:$R1, (operator mode:$XBD2))]> { + let OpKey = key ## cls; + let OpType = "mem"; + let mayLoad = 1; + let Has20BitOffset = 1; + let HasIndex = 1; + let AccessBytes = bytes; +} + +// Like UnaryRR, but expanded after RA depending on the choice of registers. +class UnaryRRPseudo<string key, SDPatternOperator operator, + RegisterOperand cls1, RegisterOperand cls2> + : Pseudo<(outs cls1:$R1), (ins cls2:$R2), + [(set cls1:$R1, (operator cls2:$R2))]> { + let OpKey = key ## cls1; + let OpType = "reg"; +} + +// Like BinaryRI, but expanded after RA depending on the choice of register. +class BinaryRIPseudo<SDPatternOperator operator, RegisterOperand cls, + Immediate imm> + : Pseudo<(outs cls:$R1), (ins cls:$R1src, imm:$I2), + [(set cls:$R1, (operator cls:$R1src, imm:$I2))]> { + let Constraints = "$R1 = $R1src"; +} + +// Like BinaryRIE, but expanded after RA depending on the choice of register. +class BinaryRIEPseudo<SDPatternOperator operator, RegisterOperand cls, + Immediate imm> + : Pseudo<(outs cls:$R1), (ins cls:$R3, imm:$I2), + [(set cls:$R1, (operator cls:$R3, imm:$I2))]>; + +// Like BinaryRIAndK, but expanded after RA depending on the choice of register. +multiclass BinaryRIAndKPseudo<string key, SDPatternOperator operator, + RegisterOperand cls, Immediate imm> { + let NumOpsKey = key in { + let NumOpsValue = "3" in + def K : BinaryRIEPseudo<null_frag, cls, imm>, + Requires<[FeatureHighWord, FeatureDistinctOps]>; + let NumOpsValue = "2", isConvertibleToThreeAddress = 1 in + def "" : BinaryRIPseudo<operator, cls, imm>, + Requires<[FeatureHighWord]>; + } +} + +// Like CompareRI, but expanded after RA depending on the choice of register. +class CompareRIPseudo<SDPatternOperator operator, RegisterOperand cls, + Immediate imm> + : Pseudo<(outs), (ins cls:$R1, imm:$I2), [(operator cls:$R1, imm:$I2)]>; + +// Like CompareRXY, but expanded after RA depending on the choice of register. +class CompareRXYPseudo<SDPatternOperator operator, RegisterOperand cls, + SDPatternOperator load, bits<5> bytes, + AddressingMode mode = bdxaddr20only> + : Pseudo<(outs), (ins cls:$R1, mode:$XBD2), + [(operator cls:$R1, (load mode:$XBD2))]> { + let mayLoad = 1; + let Has20BitOffset = 1; + let HasIndex = 1; + let AccessBytes = bytes; +} + +// Like StoreRXY, but expanded after RA depending on the choice of register. +class StoreRXYPseudo<SDPatternOperator operator, RegisterOperand cls, + bits<5> bytes, AddressingMode mode = bdxaddr20only> + : Pseudo<(outs), (ins cls:$R1, mode:$XBD2), + [(operator cls:$R1, mode:$XBD2)]> { + let mayStore = 1; + let Has20BitOffset = 1; + let HasIndex = 1; + let AccessBytes = bytes; +} + +// Like RotateSelectRIEf, but expanded after RA depending on the choice +// of registers. +class RotateSelectRIEfPseudo<RegisterOperand cls1, RegisterOperand cls2> + : Pseudo<(outs cls1:$R1), + (ins cls1:$R1src, cls2:$R2, uimm8:$I3, uimm8:$I4, uimm8zx6:$I5), + []> { + let Constraints = "$R1 = $R1src"; + let DisableEncoding = "$R1src"; +} + // Implements "$dst = $cc & (8 >> CC) ? $src1 : $src2", where CC is // the value of the PSW's 2-bit condition code field. class SelectWrapper<RegisterOperand cls> @@ -1386,3 +1519,85 @@ class AtomicLoadWBinaryReg<SDPatternOperator operator> : AtomicLoadWBinary<operator, (i32 GR32:$src2), GR32>; class AtomicLoadWBinaryImm<SDPatternOperator operator, Immediate imm> : AtomicLoadWBinary<operator, (i32 imm:$src2), imm>; + +// Define an instruction that operates on two fixed-length blocks of memory, +// and associated pseudo instructions for operating on blocks of any size. +// The Sequence form uses a straight-line sequence of instructions and +// the Loop form uses a loop of length-256 instructions followed by +// another instruction to handle the excess. +multiclass MemorySS<string mnemonic, bits<8> opcode, + SDPatternOperator sequence, SDPatternOperator loop> { + def "" : InstSS<opcode, (outs), (ins bdladdr12onlylen8:$BDL1, + bdaddr12only:$BD2), + mnemonic##"\t$BDL1, $BD2", []>; + let usesCustomInserter = 1 in { + def Sequence : Pseudo<(outs), (ins bdaddr12only:$dest, bdaddr12only:$src, + imm64:$length), + [(sequence bdaddr12only:$dest, bdaddr12only:$src, + imm64:$length)]>; + def Loop : Pseudo<(outs), (ins bdaddr12only:$dest, bdaddr12only:$src, + imm64:$length, GR64:$count256), + [(loop bdaddr12only:$dest, bdaddr12only:$src, + imm64:$length, GR64:$count256)]>; + } +} + +// Define an instruction that operates on two strings, both terminated +// by the character in R0. The instruction processes a CPU-determinated +// number of bytes at a time and sets CC to 3 if the instruction needs +// to be repeated. Also define a pseudo instruction that represents +// the full loop (the main instruction plus the branch on CC==3). +multiclass StringRRE<string mnemonic, bits<16> opcode, + SDPatternOperator operator> { + def "" : InstRRE<opcode, (outs GR64:$R1, GR64:$R2), + (ins GR64:$R1src, GR64:$R2src), + mnemonic#"\t$R1, $R2", []> { + let Constraints = "$R1 = $R1src, $R2 = $R2src"; + let DisableEncoding = "$R1src, $R2src"; + } + let usesCustomInserter = 1 in + def Loop : Pseudo<(outs GR64:$end), + (ins GR64:$start1, GR64:$start2, GR32:$char), + [(set GR64:$end, (operator GR64:$start1, GR64:$start2, + GR32:$char))]>; +} + +// A pseudo instruction that is a direct alias of a real instruction. +// These aliases are used in cases where a particular register operand is +// fixed or where the same instruction is used with different register sizes. +// The size parameter is the size in bytes of the associated real instruction. +class Alias<int size, dag outs, dag ins, list<dag> pattern> + : InstSystemZ<size, outs, ins, "", pattern> { + let isPseudo = 1; + let isCodeGenOnly = 1; +} + +// An alias of a BinaryRI, but with different register sizes. +class BinaryAliasRI<SDPatternOperator operator, RegisterOperand cls, + Immediate imm> + : Alias<4, (outs cls:$R1), (ins cls:$R1src, imm:$I2), + [(set cls:$R1, (operator cls:$R1src, imm:$I2))]> { + let Constraints = "$R1 = $R1src"; +} + +// An alias of a BinaryRIL, but with different register sizes. +class BinaryAliasRIL<SDPatternOperator operator, RegisterOperand cls, + Immediate imm> + : Alias<6, (outs cls:$R1), (ins cls:$R1src, imm:$I2), + [(set cls:$R1, (operator cls:$R1src, imm:$I2))]> { + let Constraints = "$R1 = $R1src"; +} + +// An alias of a CompareRI, but with different register sizes. +class CompareAliasRI<SDPatternOperator operator, RegisterOperand cls, + Immediate imm> + : Alias<4, (outs), (ins cls:$R1, imm:$I2), [(operator cls:$R1, imm:$I2)]> { + let isCompare = 1; +} + +// An alias of a RotateSelectRIEf, but with different register sizes. +class RotateSelectAliasRIEf<RegisterOperand cls1, RegisterOperand cls2> + : Alias<6, (outs cls1:$R1), + (ins cls1:$R1src, cls2:$R2, uimm8:$I3, uimm8:$I4, uimm8zx6:$I5), []> { + let Constraints = "$R1 = $R1src"; +} |