| //===-- SparcInstr64Bit.td - 64-bit instructions for Sparc Target ---------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains instruction definitions and patterns needed for 64-bit |
| // code generation on SPARC v9. |
| // |
| // Some SPARC v9 instructions are defined in SparcInstrInfo.td because they can |
| // also be used in 32-bit code running on a SPARC v9 CPU. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| let Predicates = [Is64Bit] in { |
| // The same integer registers are used for i32 and i64 values. |
| // When registers hold i32 values, the high bits are don't care. |
| // This give us free trunc and anyext. |
| def : Pat<(i64 (anyext i32:$val)), (COPY_TO_REGCLASS $val, I64Regs)>; |
| def : Pat<(i32 (trunc i64:$val)), (COPY_TO_REGCLASS $val, IntRegs)>; |
| |
| } // Predicates = [Is64Bit] |
| |
| |
| //===----------------------------------------------------------------------===// |
| // 64-bit Shift Instructions. |
| //===----------------------------------------------------------------------===// |
| // |
| // The 32-bit shift instructions are still available. The left shift srl |
| // instructions shift all 64 bits, but it only accepts a 5-bit shift amount. |
| // |
| // The srl instructions only shift the low 32 bits and clear the high 32 bits. |
| // Finally, sra shifts the low 32 bits and sign-extends to 64 bits. |
| |
| let Predicates = [Is64Bit] in { |
| |
| def : Pat<(i64 (zext i32:$val)), (SRLri $val, 0)>; |
| def : Pat<(i64 (sext i32:$val)), (SRAri $val, 0)>; |
| |
| def : Pat<(i64 (and i64:$val, 0xffffffff)), (SRLri $val, 0)>; |
| def : Pat<(i64 (sext_inreg i64:$val, i32)), (SRAri $val, 0)>; |
| |
| defm SLLX : F3_S<"sllx", 0b100101, 1, shl, i64, I64Regs>; |
| defm SRLX : F3_S<"srlx", 0b100110, 1, srl, i64, I64Regs>; |
| defm SRAX : F3_S<"srax", 0b100111, 1, sra, i64, I64Regs>; |
| |
| } // Predicates = [Is64Bit] |
| |
| |
| //===----------------------------------------------------------------------===// |
| // 64-bit Immediates. |
| //===----------------------------------------------------------------------===// |
| // |
| // All 32-bit immediates can be materialized with sethi+or, but 64-bit |
| // immediates may require more code. There may be a point where it is |
| // preferable to use a constant pool load instead, depending on the |
| // microarchitecture. |
| |
| // Single-instruction patterns. |
| |
| // The ALU instructions want their simm13 operands as i32 immediates. |
| def as_i32imm : SDNodeXForm<imm, [{ |
| return CurDAG->getTargetConstant(N->getSExtValue(), MVT::i32); |
| }]>; |
| def : Pat<(i64 simm13:$val), (ORri (i64 G0), (as_i32imm $val))>; |
| def : Pat<(i64 SETHIimm:$val), (SETHIi (HI22 $val))>; |
| |
| // Double-instruction patterns. |
| |
| // All unsigned i32 immediates can be handled by sethi+or. |
| def uimm32 : PatLeaf<(imm), [{ return isUInt<32>(N->getZExtValue()); }]>; |
| def : Pat<(i64 uimm32:$val), (ORri (SETHIi (HI22 $val)), (LO10 $val))>, |
| Requires<[Is64Bit]>; |
| |
| // All negative i33 immediates can be handled by sethi+xor. |
| def nimm33 : PatLeaf<(imm), [{ |
| int64_t Imm = N->getSExtValue(); |
| return Imm < 0 && isInt<33>(Imm); |
| }]>; |
| // Bits 10-31 inverted. Same as assembler's %hix. |
| def HIX22 : SDNodeXForm<imm, [{ |
| uint64_t Val = (~N->getZExtValue() >> 10) & ((1u << 22) - 1); |
| return CurDAG->getTargetConstant(Val, MVT::i32); |
| }]>; |
| // Bits 0-9 with ones in bits 10-31. Same as assembler's %lox. |
| def LOX10 : SDNodeXForm<imm, [{ |
| return CurDAG->getTargetConstant(~(~N->getZExtValue() & 0x3ff), MVT::i32); |
| }]>; |
| def : Pat<(i64 nimm33:$val), (XORri (SETHIi (HIX22 $val)), (LOX10 $val))>, |
| Requires<[Is64Bit]>; |
| |
| // More possible patterns: |
| // |
| // (sllx sethi, n) |
| // (sllx simm13, n) |
| // |
| // 3 instrs: |
| // |
| // (xor (sllx sethi), simm13) |
| // (sllx (xor sethi, simm13)) |
| // |
| // 4 instrs: |
| // |
| // (or sethi, (sllx sethi)) |
| // (xnor sethi, (sllx sethi)) |
| // |
| // 5 instrs: |
| // |
| // (or (sllx sethi), (or sethi, simm13)) |
| // (xnor (sllx sethi), (or sethi, simm13)) |
| // (or (sllx sethi), (sllx sethi)) |
| // (xnor (sllx sethi), (sllx sethi)) |
| // |
| // Worst case is 6 instrs: |
| // |
| // (or (sllx (or sethi, simmm13)), (or sethi, simm13)) |
| |
| // Bits 42-63, same as assembler's %hh. |
| def HH22 : SDNodeXForm<imm, [{ |
| uint64_t Val = (N->getZExtValue() >> 42) & ((1u << 22) - 1); |
| return CurDAG->getTargetConstant(Val, MVT::i32); |
| }]>; |
| // Bits 32-41, same as assembler's %hm. |
| def HM10 : SDNodeXForm<imm, [{ |
| uint64_t Val = (N->getZExtValue() >> 32) & ((1u << 10) - 1); |
| return CurDAG->getTargetConstant(Val, MVT::i32); |
| }]>; |
| def : Pat<(i64 imm:$val), |
| (ORrr (SLLXri (ORri (SETHIi (HH22 $val)), (HM10 $val)), (i32 32)), |
| (ORri (SETHIi (HI22 $val)), (LO10 $val)))>, |
| Requires<[Is64Bit]>; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // 64-bit Integer Arithmetic and Logic. |
| //===----------------------------------------------------------------------===// |
| |
| let Predicates = [Is64Bit] in { |
| |
| // Register-register instructions. |
| |
| def : Pat<(and i64:$a, i64:$b), (ANDrr $a, $b)>; |
| def : Pat<(or i64:$a, i64:$b), (ORrr $a, $b)>; |
| def : Pat<(xor i64:$a, i64:$b), (XORrr $a, $b)>; |
| |
| def : Pat<(and i64:$a, (not i64:$b)), (ANDNrr $a, $b)>; |
| def : Pat<(or i64:$a, (not i64:$b)), (ORNrr $a, $b)>; |
| def : Pat<(xor i64:$a, (not i64:$b)), (XNORrr $a, $b)>; |
| |
| def : Pat<(add i64:$a, i64:$b), (ADDrr $a, $b)>; |
| def : Pat<(sub i64:$a, i64:$b), (SUBrr $a, $b)>; |
| |
| def : Pat<(SPcmpicc i64:$a, i64:$b), (CMPrr $a, $b)>; |
| |
| def : Pat<(tlsadd i64:$a, i64:$b, tglobaltlsaddr:$sym), |
| (TLS_ADDrr $a, $b, $sym)>; |
| |
| // Register-immediate instructions. |
| |
| def : Pat<(and i64:$a, (i64 simm13:$b)), (ANDri $a, (as_i32imm $b))>; |
| def : Pat<(or i64:$a, (i64 simm13:$b)), (ORri $a, (as_i32imm $b))>; |
| def : Pat<(xor i64:$a, (i64 simm13:$b)), (XORri $a, (as_i32imm $b))>; |
| |
| def : Pat<(add i64:$a, (i64 simm13:$b)), (ADDri $a, (as_i32imm $b))>; |
| def : Pat<(sub i64:$a, (i64 simm13:$b)), (SUBri $a, (as_i32imm $b))>; |
| |
| def : Pat<(SPcmpicc i64:$a, (i64 simm13:$b)), (CMPri $a, (as_i32imm $b))>; |
| |
| def : Pat<(ctpop i64:$src), (POPCrr $src)>; |
| |
| // "LEA" form of add |
| def LEAX_ADDri : F3_2<2, 0b000000, |
| (outs I64Regs:$dst), (ins MEMri:$addr), |
| "add ${addr:arith}, $dst", |
| [(set iPTR:$dst, ADDRri:$addr)]>; |
| |
| } // Predicates = [Is64Bit] |
| |
| |
| //===----------------------------------------------------------------------===// |
| // 64-bit Integer Multiply and Divide. |
| //===----------------------------------------------------------------------===// |
| |
| let Predicates = [Is64Bit] in { |
| |
| def MULXrr : F3_1<2, 0b001001, |
| (outs I64Regs:$rd), (ins I64Regs:$rs1, I64Regs:$rs2), |
| "mulx $rs1, $rs2, $rd", |
| [(set i64:$rd, (mul i64:$rs1, i64:$rs2))]>; |
| def MULXri : F3_2<2, 0b001001, |
| (outs IntRegs:$rd), (ins IntRegs:$rs1, i64imm:$i), |
| "mulx $rs1, $i, $rd", |
| [(set i64:$rd, (mul i64:$rs1, (i64 simm13:$i)))]>; |
| |
| // Division can trap. |
| let hasSideEffects = 1 in { |
| def SDIVXrr : F3_1<2, 0b101101, |
| (outs I64Regs:$rd), (ins I64Regs:$rs1, I64Regs:$rs2), |
| "sdivx $rs1, $rs2, $rd", |
| [(set i64:$rd, (sdiv i64:$rs1, i64:$rs2))]>; |
| def SDIVXri : F3_2<2, 0b101101, |
| (outs IntRegs:$rd), (ins IntRegs:$rs1, i64imm:$i), |
| "sdivx $rs1, $i, $rd", |
| [(set i64:$rd, (sdiv i64:$rs1, (i64 simm13:$i)))]>; |
| |
| def UDIVXrr : F3_1<2, 0b001101, |
| (outs I64Regs:$rd), (ins I64Regs:$rs1, I64Regs:$rs2), |
| "udivx $rs1, $rs2, $rd", |
| [(set i64:$rd, (udiv i64:$rs1, i64:$rs2))]>; |
| def UDIVXri : F3_2<2, 0b001101, |
| (outs IntRegs:$rd), (ins IntRegs:$rs1, i64imm:$i), |
| "udivx $rs1, $i, $rd", |
| [(set i64:$rd, (udiv i64:$rs1, (i64 simm13:$i)))]>; |
| } // hasSideEffects = 1 |
| |
| } // Predicates = [Is64Bit] |
| |
| |
| //===----------------------------------------------------------------------===// |
| // 64-bit Loads and Stores. |
| //===----------------------------------------------------------------------===// |
| // |
| // All the 32-bit loads and stores are available. The extending loads are sign |
| // or zero-extending to 64 bits. The LDrr and LDri instructions load 32 bits |
| // zero-extended to i64. Their mnemonic is lduw in SPARC v9 (Load Unsigned |
| // Word). |
| // |
| // SPARC v9 adds 64-bit loads as well as a sign-extending ldsw i32 loads. |
| |
| let Predicates = [Is64Bit] in { |
| |
| // 64-bit loads. |
| def LDXrr : F3_1<3, 0b001011, |
| (outs I64Regs:$dst), (ins MEMrr:$addr), |
| "ldx [$addr], $dst", |
| [(set i64:$dst, (load ADDRrr:$addr))]>; |
| def LDXri : F3_2<3, 0b001011, |
| (outs I64Regs:$dst), (ins MEMri:$addr), |
| "ldx [$addr], $dst", |
| [(set i64:$dst, (load ADDRri:$addr))]>; |
| let mayLoad = 1 in |
| def TLS_LDXrr : F3_1<3, 0b001011, |
| (outs IntRegs:$dst), (ins MEMrr:$addr, TLSSym:$sym), |
| "ldx [$addr], $dst, $sym", |
| [(set i64:$dst, |
| (tlsld ADDRrr:$addr, tglobaltlsaddr:$sym))]>; |
| |
| // Extending loads to i64. |
| def : Pat<(i64 (zextloadi1 ADDRrr:$addr)), (LDUBrr ADDRrr:$addr)>; |
| def : Pat<(i64 (zextloadi1 ADDRri:$addr)), (LDUBri ADDRri:$addr)>; |
| def : Pat<(i64 (extloadi1 ADDRrr:$addr)), (LDUBrr ADDRrr:$addr)>; |
| def : Pat<(i64 (extloadi1 ADDRri:$addr)), (LDUBri ADDRri:$addr)>; |
| |
| def : Pat<(i64 (zextloadi8 ADDRrr:$addr)), (LDUBrr ADDRrr:$addr)>; |
| def : Pat<(i64 (zextloadi8 ADDRri:$addr)), (LDUBri ADDRri:$addr)>; |
| def : Pat<(i64 (extloadi8 ADDRrr:$addr)), (LDUBrr ADDRrr:$addr)>; |
| def : Pat<(i64 (extloadi8 ADDRri:$addr)), (LDUBri ADDRri:$addr)>; |
| def : Pat<(i64 (sextloadi8 ADDRrr:$addr)), (LDSBrr ADDRrr:$addr)>; |
| def : Pat<(i64 (sextloadi8 ADDRri:$addr)), (LDSBri ADDRri:$addr)>; |
| |
| def : Pat<(i64 (zextloadi16 ADDRrr:$addr)), (LDUHrr ADDRrr:$addr)>; |
| def : Pat<(i64 (zextloadi16 ADDRri:$addr)), (LDUHri ADDRri:$addr)>; |
| def : Pat<(i64 (extloadi16 ADDRrr:$addr)), (LDUHrr ADDRrr:$addr)>; |
| def : Pat<(i64 (extloadi16 ADDRri:$addr)), (LDUHri ADDRri:$addr)>; |
| def : Pat<(i64 (sextloadi16 ADDRrr:$addr)), (LDSHrr ADDRrr:$addr)>; |
| def : Pat<(i64 (sextloadi16 ADDRri:$addr)), (LDSHri ADDRri:$addr)>; |
| |
| def : Pat<(i64 (zextloadi32 ADDRrr:$addr)), (LDrr ADDRrr:$addr)>; |
| def : Pat<(i64 (zextloadi32 ADDRri:$addr)), (LDri ADDRri:$addr)>; |
| def : Pat<(i64 (extloadi32 ADDRrr:$addr)), (LDrr ADDRrr:$addr)>; |
| def : Pat<(i64 (extloadi32 ADDRri:$addr)), (LDri ADDRri:$addr)>; |
| |
| // Sign-extending load of i32 into i64 is a new SPARC v9 instruction. |
| def LDSWrr : F3_1<3, 0b001011, |
| (outs I64Regs:$dst), (ins MEMrr:$addr), |
| "ldsw [$addr], $dst", |
| [(set i64:$dst, (sextloadi32 ADDRrr:$addr))]>; |
| def LDSWri : F3_2<3, 0b001011, |
| (outs I64Regs:$dst), (ins MEMri:$addr), |
| "ldsw [$addr], $dst", |
| [(set i64:$dst, (sextloadi32 ADDRri:$addr))]>; |
| |
| // 64-bit stores. |
| def STXrr : F3_1<3, 0b001110, |
| (outs), (ins MEMrr:$addr, I64Regs:$src), |
| "stx $src, [$addr]", |
| [(store i64:$src, ADDRrr:$addr)]>; |
| def STXri : F3_2<3, 0b001110, |
| (outs), (ins MEMri:$addr, I64Regs:$src), |
| "stx $src, [$addr]", |
| [(store i64:$src, ADDRri:$addr)]>; |
| |
| // Truncating stores from i64 are identical to the i32 stores. |
| def : Pat<(truncstorei8 i64:$src, ADDRrr:$addr), (STBrr ADDRrr:$addr, $src)>; |
| def : Pat<(truncstorei8 i64:$src, ADDRri:$addr), (STBri ADDRri:$addr, $src)>; |
| def : Pat<(truncstorei16 i64:$src, ADDRrr:$addr), (STHrr ADDRrr:$addr, $src)>; |
| def : Pat<(truncstorei16 i64:$src, ADDRri:$addr), (STHri ADDRri:$addr, $src)>; |
| def : Pat<(truncstorei32 i64:$src, ADDRrr:$addr), (STrr ADDRrr:$addr, $src)>; |
| def : Pat<(truncstorei32 i64:$src, ADDRri:$addr), (STri ADDRri:$addr, $src)>; |
| |
| // store 0, addr -> store %g0, addr |
| def : Pat<(store (i64 0), ADDRrr:$dst), (STXrr ADDRrr:$dst, (i64 G0))>; |
| def : Pat<(store (i64 0), ADDRri:$dst), (STXri ADDRri:$dst, (i64 G0))>; |
| |
| } // Predicates = [Is64Bit] |
| |
| |
| //===----------------------------------------------------------------------===// |
| // 64-bit Conditionals. |
| //===----------------------------------------------------------------------===// |
| // |
| // Flag-setting instructions like subcc and addcc set both icc and xcc flags. |
| // The icc flags correspond to the 32-bit result, and the xcc are for the |
| // full 64-bit result. |
| // |
| // We reuse CMPICC SDNodes for compares, but use new BRXCC branch nodes for |
| // 64-bit compares. See LowerBR_CC. |
| |
| let Predicates = [Is64Bit] in { |
| |
| let Uses = [ICC] in |
| def BPXCC : BranchSP<(ins brtarget:$imm22, CCOp:$cond), |
| "b$cond %xcc, $imm22", |
| [(SPbrxcc bb:$imm22, imm:$cond)]>; |
| |
| // Conditional moves on %xcc. |
| let Uses = [ICC], Constraints = "$f = $rd" in { |
| def MOVXCCrr : Pseudo<(outs IntRegs:$rd), |
| (ins IntRegs:$rs2, IntRegs:$f, CCOp:$cond), |
| "mov$cond %xcc, $rs2, $rd", |
| [(set i32:$rd, |
| (SPselectxcc i32:$rs2, i32:$f, imm:$cond))]>; |
| def MOVXCCri : Pseudo<(outs IntRegs:$rd), |
| (ins i32imm:$i, IntRegs:$f, CCOp:$cond), |
| "mov$cond %xcc, $i, $rd", |
| [(set i32:$rd, |
| (SPselectxcc simm11:$i, i32:$f, imm:$cond))]>; |
| def FMOVS_XCC : Pseudo<(outs FPRegs:$rd), |
| (ins FPRegs:$rs2, FPRegs:$f, CCOp:$cond), |
| "fmovs$cond %xcc, $rs2, $rd", |
| [(set f32:$rd, |
| (SPselectxcc f32:$rs2, f32:$f, imm:$cond))]>; |
| def FMOVD_XCC : Pseudo<(outs DFPRegs:$rd), |
| (ins DFPRegs:$rs2, DFPRegs:$f, CCOp:$cond), |
| "fmovd$cond %xcc, $rs2, $rd", |
| [(set f64:$rd, |
| (SPselectxcc f64:$rs2, f64:$f, imm:$cond))]>; |
| } // Uses, Constraints |
| |
| //===----------------------------------------------------------------------===// |
| // 64-bit Floating Point Conversions. |
| //===----------------------------------------------------------------------===// |
| |
| let Predicates = [Is64Bit] in { |
| |
| def FXTOS : F3_3u<2, 0b110100, 0b010000100, |
| (outs FPRegs:$dst), (ins DFPRegs:$src), |
| "fxtos $src, $dst", |
| [(set FPRegs:$dst, (SPxtof DFPRegs:$src))]>; |
| def FXTOD : F3_3u<2, 0b110100, 0b010001000, |
| (outs DFPRegs:$dst), (ins DFPRegs:$src), |
| "fxtod $src, $dst", |
| [(set DFPRegs:$dst, (SPxtof DFPRegs:$src))]>; |
| def FXTOQ : F3_3u<2, 0b110100, 0b010001100, |
| (outs QFPRegs:$dst), (ins DFPRegs:$src), |
| "fxtoq $src, $dst", |
| [(set QFPRegs:$dst, (SPxtof DFPRegs:$src))]>, |
| Requires<[HasHardQuad]>; |
| |
| def FSTOX : F3_3u<2, 0b110100, 0b010000001, |
| (outs DFPRegs:$dst), (ins FPRegs:$src), |
| "fstox $src, $dst", |
| [(set DFPRegs:$dst, (SPftox FPRegs:$src))]>; |
| def FDTOX : F3_3u<2, 0b110100, 0b010000010, |
| (outs DFPRegs:$dst), (ins DFPRegs:$src), |
| "fdtox $src, $dst", |
| [(set DFPRegs:$dst, (SPftox DFPRegs:$src))]>; |
| def FQTOX : F3_3u<2, 0b110100, 0b010000011, |
| (outs DFPRegs:$dst), (ins QFPRegs:$src), |
| "fqtox $src, $dst", |
| [(set DFPRegs:$dst, (SPftox QFPRegs:$src))]>, |
| Requires<[HasHardQuad]>; |
| |
| } // Predicates = [Is64Bit] |
| |
| def : Pat<(SPselectxcc i64:$t, i64:$f, imm:$cond), |
| (MOVXCCrr $t, $f, imm:$cond)>; |
| def : Pat<(SPselectxcc (i64 simm11:$t), i64:$f, imm:$cond), |
| (MOVXCCri (as_i32imm $t), $f, imm:$cond)>; |
| |
| def : Pat<(SPselecticc i64:$t, i64:$f, imm:$cond), |
| (MOVICCrr $t, $f, imm:$cond)>; |
| def : Pat<(SPselecticc (i64 simm11:$t), i64:$f, imm:$cond), |
| (MOVICCri (as_i32imm $t), $f, imm:$cond)>; |
| |
| def : Pat<(SPselectfcc i64:$t, i64:$f, imm:$cond), |
| (MOVFCCrr $t, $f, imm:$cond)>; |
| def : Pat<(SPselectfcc (i64 simm11:$t), i64:$f, imm:$cond), |
| (MOVFCCri (as_i32imm $t), $f, imm:$cond)>; |
| |
| } // Predicates = [Is64Bit] |
