-//===- PPCRegisterInfo.td - The PowerPC Register File ------*- tablegen -*-===//
-//
+//===-- PPCRegisterInfo.td - The PowerPC Register File -----*- tablegen -*-===//
+//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
-//
+//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
+let Namespace = "PPC" in {
+def sub_lt : SubRegIndex<1>;
+def sub_gt : SubRegIndex<1, 1>;
+def sub_eq : SubRegIndex<1, 2>;
+def sub_un : SubRegIndex<1, 3>;
+def sub_32 : SubRegIndex<32>;
+def sub_64 : SubRegIndex<64>;
+def sub_128 : SubRegIndex<128>;
+}
+
+
class PPCReg<string n> : Register<n> {
let Namespace = "PPC";
}
// GPR - One of the 32 32-bit general-purpose registers
class GPR<bits<5> num, string n> : PPCReg<n> {
- field bits<5> Num = num;
+ let HWEncoding{4-0} = num;
}
// GP8 - One of the 32 64-bit general-purpose registers
class GP8<GPR SubReg, string n> : PPCReg<n> {
- field bits<5> Num = SubReg.Num;
+ let HWEncoding = SubReg.HWEncoding;
let SubRegs = [SubReg];
+ let SubRegIndices = [sub_32];
}
// SPR - One of the 32-bit special-purpose registers
class SPR<bits<10> num, string n> : PPCReg<n> {
- field bits<10> Num = num;
+ let HWEncoding{9-0} = num;
}
// FPR - One of the 32 64-bit floating-point registers
class FPR<bits<5> num, string n> : PPCReg<n> {
- field bits<5> Num = num;
+ let HWEncoding{4-0} = num;
+}
+
+// QFPR - One of the 32 256-bit floating-point vector registers (used for QPX)
+class QFPR<FPR SubReg, string n> : PPCReg<n> {
+ let HWEncoding = SubReg.HWEncoding;
+ let SubRegs = [SubReg];
+ let SubRegIndices = [sub_64];
+}
+
+// VF - One of the 32 64-bit floating-point subregisters of the vector
+// registers (used by VSX).
+class VF<bits<5> num, string n> : PPCReg<n> {
+ let HWEncoding{4-0} = num;
+ let HWEncoding{5} = 1;
}
// VR - One of the 32 128-bit vector registers
-class VR<bits<5> num, string n> : PPCReg<n> {
- field bits<5> Num = num;
+class VR<VF SubReg, string n> : PPCReg<n> {
+ let HWEncoding{4-0} = SubReg.HWEncoding{4-0};
+ let HWEncoding{5} = 0;
+ let SubRegs = [SubReg];
+ let SubRegIndices = [sub_64];
+}
+
+// VSRL - One of the 32 128-bit VSX registers that overlap with the scalar
+// floating-point registers.
+class VSRL<FPR SubReg, string n> : PPCReg<n> {
+ let HWEncoding = SubReg.HWEncoding;
+ let SubRegs = [SubReg];
+ let SubRegIndices = [sub_64];
+}
+
+// VSRH - One of the 32 128-bit VSX registers that overlap with the vector
+// registers.
+class VSRH<VR SubReg, string n> : PPCReg<n> {
+ let HWEncoding{4-0} = SubReg.HWEncoding{4-0};
+ let HWEncoding{5} = 1;
+ let SubRegs = [SubReg];
+ let SubRegIndices = [sub_128];
}
// CR - One of the 8 4-bit condition registers
class CR<bits<3> num, string n, list<Register> subregs> : PPCReg<n> {
- field bits<3> Num = num;
+ let HWEncoding{2-0} = num;
let SubRegs = subregs;
}
// CRBIT - One of the 32 1-bit condition register fields
class CRBIT<bits<5> num, string n> : PPCReg<n> {
- field bits<5> Num = num;
+ let HWEncoding{4-0} = num;
}
-
// General-purpose registers
-def R0 : GPR< 0, "r0">, DwarfRegNum<[0]>;
-def R1 : GPR< 1, "r1">, DwarfRegNum<[1]>;
-def R2 : GPR< 2, "r2">, DwarfRegNum<[2]>;
-def R3 : GPR< 3, "r3">, DwarfRegNum<[3]>;
-def R4 : GPR< 4, "r4">, DwarfRegNum<[4]>;
-def R5 : GPR< 5, "r5">, DwarfRegNum<[5]>;
-def R6 : GPR< 6, "r6">, DwarfRegNum<[6]>;
-def R7 : GPR< 7, "r7">, DwarfRegNum<[7]>;
-def R8 : GPR< 8, "r8">, DwarfRegNum<[8]>;
-def R9 : GPR< 9, "r9">, DwarfRegNum<[9]>;
-def R10 : GPR<10, "r10">, DwarfRegNum<[10]>;
-def R11 : GPR<11, "r11">, DwarfRegNum<[11]>;
-def R12 : GPR<12, "r12">, DwarfRegNum<[12]>;
-def R13 : GPR<13, "r13">, DwarfRegNum<[13]>;
-def R14 : GPR<14, "r14">, DwarfRegNum<[14]>;
-def R15 : GPR<15, "r15">, DwarfRegNum<[15]>;
-def R16 : GPR<16, "r16">, DwarfRegNum<[16]>;
-def R17 : GPR<17, "r17">, DwarfRegNum<[17]>;
-def R18 : GPR<18, "r18">, DwarfRegNum<[18]>;
-def R19 : GPR<19, "r19">, DwarfRegNum<[19]>;
-def R20 : GPR<20, "r20">, DwarfRegNum<[20]>;
-def R21 : GPR<21, "r21">, DwarfRegNum<[21]>;
-def R22 : GPR<22, "r22">, DwarfRegNum<[22]>;
-def R23 : GPR<23, "r23">, DwarfRegNum<[23]>;
-def R24 : GPR<24, "r24">, DwarfRegNum<[24]>;
-def R25 : GPR<25, "r25">, DwarfRegNum<[25]>;
-def R26 : GPR<26, "r26">, DwarfRegNum<[26]>;
-def R27 : GPR<27, "r27">, DwarfRegNum<[27]>;
-def R28 : GPR<28, "r28">, DwarfRegNum<[28]>;
-def R29 : GPR<29, "r29">, DwarfRegNum<[29]>;
-def R30 : GPR<30, "r30">, DwarfRegNum<[30]>;
-def R31 : GPR<31, "r31">, DwarfRegNum<[31]>;
+foreach Index = 0-31 in {
+ def R#Index : GPR<Index, "r"#Index>, DwarfRegNum<[-2, Index]>;
+}
// 64-bit General-purpose registers
-def X0 : GP8< R0, "r0">, DwarfRegNum<[0]>;
-def X1 : GP8< R1, "r1">, DwarfRegNum<[1]>;
-def X2 : GP8< R2, "r2">, DwarfRegNum<[2]>;
-def X3 : GP8< R3, "r3">, DwarfRegNum<[3]>;
-def X4 : GP8< R4, "r4">, DwarfRegNum<[4]>;
-def X5 : GP8< R5, "r5">, DwarfRegNum<[5]>;
-def X6 : GP8< R6, "r6">, DwarfRegNum<[6]>;
-def X7 : GP8< R7, "r7">, DwarfRegNum<[7]>;
-def X8 : GP8< R8, "r8">, DwarfRegNum<[8]>;
-def X9 : GP8< R9, "r9">, DwarfRegNum<[9]>;
-def X10 : GP8<R10, "r10">, DwarfRegNum<[10]>;
-def X11 : GP8<R11, "r11">, DwarfRegNum<[11]>;
-def X12 : GP8<R12, "r12">, DwarfRegNum<[12]>;
-def X13 : GP8<R13, "r13">, DwarfRegNum<[13]>;
-def X14 : GP8<R14, "r14">, DwarfRegNum<[14]>;
-def X15 : GP8<R15, "r15">, DwarfRegNum<[15]>;
-def X16 : GP8<R16, "r16">, DwarfRegNum<[16]>;
-def X17 : GP8<R17, "r17">, DwarfRegNum<[17]>;
-def X18 : GP8<R18, "r18">, DwarfRegNum<[18]>;
-def X19 : GP8<R19, "r19">, DwarfRegNum<[19]>;
-def X20 : GP8<R20, "r20">, DwarfRegNum<[20]>;
-def X21 : GP8<R21, "r21">, DwarfRegNum<[21]>;
-def X22 : GP8<R22, "r22">, DwarfRegNum<[22]>;
-def X23 : GP8<R23, "r23">, DwarfRegNum<[23]>;
-def X24 : GP8<R24, "r24">, DwarfRegNum<[24]>;
-def X25 : GP8<R25, "r25">, DwarfRegNum<[25]>;
-def X26 : GP8<R26, "r26">, DwarfRegNum<[26]>;
-def X27 : GP8<R27, "r27">, DwarfRegNum<[27]>;
-def X28 : GP8<R28, "r28">, DwarfRegNum<[28]>;
-def X29 : GP8<R29, "r29">, DwarfRegNum<[29]>;
-def X30 : GP8<R30, "r30">, DwarfRegNum<[30]>;
-def X31 : GP8<R31, "r31">, DwarfRegNum<[31]>;
+foreach Index = 0-31 in {
+ def X#Index : GP8<!cast<GPR>("R"#Index), "r"#Index>,
+ DwarfRegNum<[Index, -2]>;
+}
// Floating-point registers
-def F0 : FPR< 0, "f0">, DwarfRegNum<[32]>;
-def F1 : FPR< 1, "f1">, DwarfRegNum<[33]>;
-def F2 : FPR< 2, "f2">, DwarfRegNum<[34]>;
-def F3 : FPR< 3, "f3">, DwarfRegNum<[35]>;
-def F4 : FPR< 4, "f4">, DwarfRegNum<[36]>;
-def F5 : FPR< 5, "f5">, DwarfRegNum<[37]>;
-def F6 : FPR< 6, "f6">, DwarfRegNum<[38]>;
-def F7 : FPR< 7, "f7">, DwarfRegNum<[39]>;
-def F8 : FPR< 8, "f8">, DwarfRegNum<[40]>;
-def F9 : FPR< 9, "f9">, DwarfRegNum<[41]>;
-def F10 : FPR<10, "f10">, DwarfRegNum<[42]>;
-def F11 : FPR<11, "f11">, DwarfRegNum<[43]>;
-def F12 : FPR<12, "f12">, DwarfRegNum<[44]>;
-def F13 : FPR<13, "f13">, DwarfRegNum<[45]>;
-def F14 : FPR<14, "f14">, DwarfRegNum<[46]>;
-def F15 : FPR<15, "f15">, DwarfRegNum<[47]>;
-def F16 : FPR<16, "f16">, DwarfRegNum<[48]>;
-def F17 : FPR<17, "f17">, DwarfRegNum<[49]>;
-def F18 : FPR<18, "f18">, DwarfRegNum<[50]>;
-def F19 : FPR<19, "f19">, DwarfRegNum<[51]>;
-def F20 : FPR<20, "f20">, DwarfRegNum<[52]>;
-def F21 : FPR<21, "f21">, DwarfRegNum<[53]>;
-def F22 : FPR<22, "f22">, DwarfRegNum<[54]>;
-def F23 : FPR<23, "f23">, DwarfRegNum<[55]>;
-def F24 : FPR<24, "f24">, DwarfRegNum<[56]>;
-def F25 : FPR<25, "f25">, DwarfRegNum<[57]>;
-def F26 : FPR<26, "f26">, DwarfRegNum<[58]>;
-def F27 : FPR<27, "f27">, DwarfRegNum<[59]>;
-def F28 : FPR<28, "f28">, DwarfRegNum<[60]>;
-def F29 : FPR<29, "f29">, DwarfRegNum<[61]>;
-def F30 : FPR<30, "f30">, DwarfRegNum<[62]>;
-def F31 : FPR<31, "f31">, DwarfRegNum<[63]>;
+foreach Index = 0-31 in {
+ def F#Index : FPR<Index, "f"#Index>,
+ DwarfRegNum<[!add(Index, 32), !add(Index, 32)]>;
+}
+
+// Floating-point vector subregisters (for VSX)
+foreach Index = 0-31 in {
+ def VF#Index : VF<Index, "vs" # !add(Index, 32)>;
+}
+
+// QPX Floating-point registers
+foreach Index = 0-31 in {
+ def QF#Index : QFPR<!cast<FPR>("F"#Index), "q"#Index>,
+ DwarfRegNum<[!add(Index, 32), !add(Index, 32)]>;
+}
// Vector registers
-def V0 : VR< 0, "v0">, DwarfRegNum<[77]>;
-def V1 : VR< 1, "v1">, DwarfRegNum<[78]>;
-def V2 : VR< 2, "v2">, DwarfRegNum<[79]>;
-def V3 : VR< 3, "v3">, DwarfRegNum<[80]>;
-def V4 : VR< 4, "v4">, DwarfRegNum<[81]>;
-def V5 : VR< 5, "v5">, DwarfRegNum<[82]>;
-def V6 : VR< 6, "v6">, DwarfRegNum<[83]>;
-def V7 : VR< 7, "v7">, DwarfRegNum<[84]>;
-def V8 : VR< 8, "v8">, DwarfRegNum<[85]>;
-def V9 : VR< 9, "v9">, DwarfRegNum<[86]>;
-def V10 : VR<10, "v10">, DwarfRegNum<[87]>;
-def V11 : VR<11, "v11">, DwarfRegNum<[88]>;
-def V12 : VR<12, "v12">, DwarfRegNum<[89]>;
-def V13 : VR<13, "v13">, DwarfRegNum<[90]>;
-def V14 : VR<14, "v14">, DwarfRegNum<[91]>;
-def V15 : VR<15, "v15">, DwarfRegNum<[92]>;
-def V16 : VR<16, "v16">, DwarfRegNum<[93]>;
-def V17 : VR<17, "v17">, DwarfRegNum<[94]>;
-def V18 : VR<18, "v18">, DwarfRegNum<[95]>;
-def V19 : VR<19, "v19">, DwarfRegNum<[96]>;
-def V20 : VR<20, "v20">, DwarfRegNum<[97]>;
-def V21 : VR<21, "v21">, DwarfRegNum<[98]>;
-def V22 : VR<22, "v22">, DwarfRegNum<[99]>;
-def V23 : VR<23, "v23">, DwarfRegNum<[100]>;
-def V24 : VR<24, "v24">, DwarfRegNum<[101]>;
-def V25 : VR<25, "v25">, DwarfRegNum<[102]>;
-def V26 : VR<26, "v26">, DwarfRegNum<[103]>;
-def V27 : VR<27, "v27">, DwarfRegNum<[104]>;
-def V28 : VR<28, "v28">, DwarfRegNum<[105]>;
-def V29 : VR<29, "v29">, DwarfRegNum<[106]>;
-def V30 : VR<30, "v30">, DwarfRegNum<[107]>;
-def V31 : VR<31, "v31">, DwarfRegNum<[108]>;
+foreach Index = 0-31 in {
+ def V#Index : VR<!cast<VF>("VF"#Index), "v"#Index>,
+ DwarfRegNum<[!add(Index, 77), !add(Index, 77)]>;
+}
+
+// VSX registers
+foreach Index = 0-31 in {
+ def VSL#Index : VSRL<!cast<FPR>("F"#Index), "vs"#Index>,
+ DwarfRegAlias<!cast<FPR>("F"#Index)>;
+}
+foreach Index = 0-31 in {
+ def VSH#Index : VSRH<!cast<VR>("V"#Index), "vs" # !add(Index, 32)>,
+ DwarfRegAlias<!cast<VR>("V"#Index)>;
+}
+
+// The reprsentation of r0 when treated as the constant 0.
+def ZERO : GPR<0, "0">, DwarfRegAlias<R0>;
+def ZERO8 : GP8<ZERO, "0">, DwarfRegAlias<X0>;
+
+// Representations of the frame pointer used by ISD::FRAMEADDR.
+def FP : GPR<0 /* arbitrary */, "**FRAME POINTER**">;
+def FP8 : GP8<FP, "**FRAME POINTER**">;
+
+// Representations of the base pointer used by setjmp.
+def BP : GPR<0 /* arbitrary */, "**BASE POINTER**">;
+def BP8 : GP8<BP, "**BASE POINTER**">;
// Condition register bits
-def CR0LT : CRBIT< 0, "0">, DwarfRegNum<[0]>;
-def CR0GT : CRBIT< 1, "1">, DwarfRegNum<[0]>;
-def CR0EQ : CRBIT< 2, "2">, DwarfRegNum<[0]>;
-def CR0UN : CRBIT< 3, "3">, DwarfRegNum<[0]>;
-def CR1LT : CRBIT< 4, "4">, DwarfRegNum<[0]>;
-def CR1GT : CRBIT< 5, "5">, DwarfRegNum<[0]>;
-def CR1EQ : CRBIT< 6, "6">, DwarfRegNum<[0]>;
-def CR1UN : CRBIT< 7, "7">, DwarfRegNum<[0]>;
-def CR2LT : CRBIT< 8, "8">, DwarfRegNum<[0]>;
-def CR2GT : CRBIT< 9, "9">, DwarfRegNum<[0]>;
-def CR2EQ : CRBIT<10, "10">, DwarfRegNum<[0]>;
-def CR2UN : CRBIT<11, "11">, DwarfRegNum<[0]>;
-def CR3LT : CRBIT<12, "12">, DwarfRegNum<[0]>;
-def CR3GT : CRBIT<13, "13">, DwarfRegNum<[0]>;
-def CR3EQ : CRBIT<14, "14">, DwarfRegNum<[0]>;
-def CR3UN : CRBIT<15, "15">, DwarfRegNum<[0]>;
-def CR4LT : CRBIT<16, "16">, DwarfRegNum<[0]>;
-def CR4GT : CRBIT<17, "17">, DwarfRegNum<[0]>;
-def CR4EQ : CRBIT<18, "18">, DwarfRegNum<[0]>;
-def CR4UN : CRBIT<19, "19">, DwarfRegNum<[0]>;
-def CR5LT : CRBIT<20, "20">, DwarfRegNum<[0]>;
-def CR5GT : CRBIT<21, "21">, DwarfRegNum<[0]>;
-def CR5EQ : CRBIT<22, "22">, DwarfRegNum<[0]>;
-def CR5UN : CRBIT<23, "23">, DwarfRegNum<[0]>;
-def CR6LT : CRBIT<24, "24">, DwarfRegNum<[0]>;
-def CR6GT : CRBIT<25, "25">, DwarfRegNum<[0]>;
-def CR6EQ : CRBIT<26, "26">, DwarfRegNum<[0]>;
-def CR6UN : CRBIT<27, "27">, DwarfRegNum<[0]>;
-def CR7LT : CRBIT<28, "28">, DwarfRegNum<[0]>;
-def CR7GT : CRBIT<29, "29">, DwarfRegNum<[0]>;
-def CR7EQ : CRBIT<30, "30">, DwarfRegNum<[0]>;
-def CR7UN : CRBIT<31, "31">, DwarfRegNum<[0]>;
+def CR0LT : CRBIT< 0, "0">;
+def CR0GT : CRBIT< 1, "1">;
+def CR0EQ : CRBIT< 2, "2">;
+def CR0UN : CRBIT< 3, "3">;
+def CR1LT : CRBIT< 4, "4">;
+def CR1GT : CRBIT< 5, "5">;
+def CR1EQ : CRBIT< 6, "6">;
+def CR1UN : CRBIT< 7, "7">;
+def CR2LT : CRBIT< 8, "8">;
+def CR2GT : CRBIT< 9, "9">;
+def CR2EQ : CRBIT<10, "10">;
+def CR2UN : CRBIT<11, "11">;
+def CR3LT : CRBIT<12, "12">;
+def CR3GT : CRBIT<13, "13">;
+def CR3EQ : CRBIT<14, "14">;
+def CR3UN : CRBIT<15, "15">;
+def CR4LT : CRBIT<16, "16">;
+def CR4GT : CRBIT<17, "17">;
+def CR4EQ : CRBIT<18, "18">;
+def CR4UN : CRBIT<19, "19">;
+def CR5LT : CRBIT<20, "20">;
+def CR5GT : CRBIT<21, "21">;
+def CR5EQ : CRBIT<22, "22">;
+def CR5UN : CRBIT<23, "23">;
+def CR6LT : CRBIT<24, "24">;
+def CR6GT : CRBIT<25, "25">;
+def CR6EQ : CRBIT<26, "26">;
+def CR6UN : CRBIT<27, "27">;
+def CR7LT : CRBIT<28, "28">;
+def CR7GT : CRBIT<29, "29">;
+def CR7EQ : CRBIT<30, "30">;
+def CR7UN : CRBIT<31, "31">;
// Condition registers
-def CR0 : CR<0, "cr0", [CR0LT, CR0GT, CR0EQ, CR0UN]>, DwarfRegNum<[68]>;
-def CR1 : CR<1, "cr1", [CR1LT, CR1GT, CR1EQ, CR1UN]>, DwarfRegNum<[69]>;
-def CR2 : CR<2, "cr2", [CR2LT, CR2GT, CR2EQ, CR2UN]>, DwarfRegNum<[70]>;
-def CR3 : CR<3, "cr3", [CR3LT, CR3GT, CR3EQ, CR3UN]>, DwarfRegNum<[71]>;
-def CR4 : CR<4, "cr4", [CR4LT, CR4GT, CR4EQ, CR4UN]>, DwarfRegNum<[72]>;
-def CR5 : CR<5, "cr5", [CR5LT, CR5GT, CR5EQ, CR5UN]>, DwarfRegNum<[73]>;
-def CR6 : CR<6, "cr6", [CR6LT, CR6GT, CR6EQ, CR6UN]>, DwarfRegNum<[74]>;
-def CR7 : CR<7, "cr7", [CR7LT, CR7GT, CR7EQ, CR7UN]>, DwarfRegNum<[75]>;
-
-let Namespace = "PPC" in {
-def sub_lt : SubRegIndex { let NumberHack = 1; }
-def sub_gt : SubRegIndex { let NumberHack = 2; }
-def sub_eq : SubRegIndex { let NumberHack = 3; }
-def sub_un : SubRegIndex { let NumberHack = 4; }
+let SubRegIndices = [sub_lt, sub_gt, sub_eq, sub_un] in {
+def CR0 : CR<0, "cr0", [CR0LT, CR0GT, CR0EQ, CR0UN]>, DwarfRegNum<[68, 68]>;
+def CR1 : CR<1, "cr1", [CR1LT, CR1GT, CR1EQ, CR1UN]>, DwarfRegNum<[69, 69]>;
+def CR2 : CR<2, "cr2", [CR2LT, CR2GT, CR2EQ, CR2UN]>, DwarfRegNum<[70, 70]>;
+def CR3 : CR<3, "cr3", [CR3LT, CR3GT, CR3EQ, CR3UN]>, DwarfRegNum<[71, 71]>;
+def CR4 : CR<4, "cr4", [CR4LT, CR4GT, CR4EQ, CR4UN]>, DwarfRegNum<[72, 72]>;
+def CR5 : CR<5, "cr5", [CR5LT, CR5GT, CR5EQ, CR5UN]>, DwarfRegNum<[73, 73]>;
+def CR6 : CR<6, "cr6", [CR6LT, CR6GT, CR6EQ, CR6UN]>, DwarfRegNum<[74, 74]>;
+def CR7 : CR<7, "cr7", [CR7LT, CR7GT, CR7EQ, CR7UN]>, DwarfRegNum<[75, 75]>;
}
-def : SubRegSet<1, [CR0, CR1, CR2, CR3, CR4, CR5, CR6, CR7],
- [CR0LT, CR1LT, CR2LT, CR3LT, CR4LT, CR5LT, CR6LT, CR7LT]>;
-def : SubRegSet<2, [CR0, CR1, CR2, CR3, CR4, CR5, CR6, CR7],
- [CR0GT, CR1GT, CR2GT, CR3GT, CR4GT, CR5GT, CR6GT, CR7GT]>;
-def : SubRegSet<3, [CR0, CR1, CR2, CR3, CR4, CR5, CR6, CR7],
- [CR0EQ, CR1EQ, CR2EQ, CR3EQ, CR4EQ, CR5EQ, CR6EQ, CR7EQ]>;
-def : SubRegSet<4, [CR0, CR1, CR2, CR3, CR4, CR5, CR6, CR7],
- [CR0UN, CR1UN, CR2UN, CR3UN, CR4UN, CR5UN, CR6UN, CR7UN]>;
-
// Link register
-def LR : SPR<8, "lr">, DwarfRegNum<[65]>;
+def LR : SPR<8, "lr">, DwarfRegNum<[-2, 65]>;
//let Aliases = [LR] in
-def LR8 : SPR<8, "lr">, DwarfRegNum<[65]>;
+def LR8 : SPR<8, "lr">, DwarfRegNum<[65, -2]>;
// Count register
-def CTR : SPR<9, "ctr">, DwarfRegNum<[66]>;
-def CTR8 : SPR<9, "ctr">, DwarfRegNum<[66]>;
+def CTR : SPR<9, "ctr">, DwarfRegNum<[-2, 66]>;
+def CTR8 : SPR<9, "ctr">, DwarfRegNum<[66, -2]>;
// VRsave register
-def VRSAVE: SPR<256, "VRsave">, DwarfRegNum<[107]>;
+def VRSAVE: SPR<256, "vrsave">, DwarfRegNum<[109]>;
// Carry bit. In the architecture this is really bit 0 of the XER register
// (which really is SPR register 1); this is the only bit interesting to a
// compiler.
-def CARRY: SPR<1, "ca">, DwarfRegNum<[0]>;
+def CARRY: SPR<1, "ca">, DwarfRegNum<[76]>;
// FP rounding mode: bits 30 and 31 of the FP status and control register
// This is not allocated as a normal register; it appears only in
// most registers, it has to be done in code; to make this work all the
// return and call instructions are described as Uses of RM, so instructions
// that do nothing but change RM will not get deleted.
-// Also, in the architecture it is not really a SPR; 512 is arbitrary.
-def RM: SPR<512, "**ROUNDING MODE**">, DwarfRegNum<[0]>;
+def RM: PPCReg<"**ROUNDING MODE**">;
/// Register classes
// Allocate volatiles first
// then nonvolatiles in reverse order since stmw/lmw save from rN to r31
-def GPRC : RegisterClass<"PPC", [i32], 32,
- [R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12,
- R30, R29, R28, R27, R26, R25, R24, R23, R22, R21, R20, R19, R18, R17,
- R16, R15, R14, R13, R31, R0, R1, LR]>
-{
- let MethodProtos = [{
- iterator allocation_order_begin(const MachineFunction &MF) const;
- iterator allocation_order_end(const MachineFunction &MF) const;
+def GPRC : RegisterClass<"PPC", [i32], 32, (add (sequence "R%u", 2, 12),
+ (sequence "R%u", 30, 13),
+ R31, R0, R1, FP, BP)> {
+ // On non-Darwin PPC64 systems, R2 can be allocated, but must be restored, so
+ // put it at the end of the list.
+ let AltOrders = [(add (sub GPRC, R2), R2)];
+ let AltOrderSelect = [{
+ const PPCSubtarget &S = MF.getSubtarget<PPCSubtarget>();
+ return S.isPPC64() && S.isSVR4ABI();
}];
- let MethodBodies = [{
- GPRCClass::iterator
- GPRCClass::allocation_order_begin(const MachineFunction &MF) const {
- // 32-bit SVR4 ABI: r2 is reserved for the OS.
- // 64-bit SVR4 ABI: r2 is reserved for the TOC pointer.
- // Darwin: R2 is reserved for CR save/restore sequence.
- return begin()+1;
- }
- GPRCClass::iterator
- GPRCClass::allocation_order_end(const MachineFunction &MF) const {
- // On PPC64, r13 is the thread pointer. Never allocate this register.
- // Note that this is overconservative, as it also prevents allocation of
- // R31 when the FP is not needed.
- // When using the 32-bit SVR4 ABI, r13 is reserved for the Small Data Area
- // pointer.
- const PPCSubtarget &Subtarget
- = MF.getTarget().getSubtarget<PPCSubtarget>();
-
- if (Subtarget.isPPC64() || Subtarget.isSVR4ABI())
- return end()-5; // don't allocate R13, R31, R0, R1, LR
-
- if (needsFP(MF))
- return end()-4; // don't allocate R31, R0, R1, LR
- else
- return end()-3; // don't allocate R0, R1, LR
- }
+}
+
+def G8RC : RegisterClass<"PPC", [i64], 64, (add (sequence "X%u", 2, 12),
+ (sequence "X%u", 30, 14),
+ X31, X13, X0, X1, FP8, BP8)> {
+ // On non-Darwin PPC64 systems, R2 can be allocated, but must be restored, so
+ // put it at the end of the list.
+ let AltOrders = [(add (sub G8RC, X2), X2)];
+ let AltOrderSelect = [{
+ const PPCSubtarget &S = MF.getSubtarget<PPCSubtarget>();
+ return S.isPPC64() && S.isSVR4ABI();
}];
}
-def G8RC : RegisterClass<"PPC", [i64], 64,
- [X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12,
- X30, X29, X28, X27, X26, X25, X24, X23, X22, X21, X20, X19, X18, X17,
- X16, X15, X14, X31, X13, X0, X1, LR8]>
-{
- let MethodProtos = [{
- iterator allocation_order_begin(const MachineFunction &MF) const;
- iterator allocation_order_end(const MachineFunction &MF) const;
+
+// For some instructions r0 is special (representing the value 0 instead of
+// the value in the r0 register), and we use these register subclasses to
+// prevent r0 from being allocated for use by those instructions.
+def GPRC_NOR0 : RegisterClass<"PPC", [i32], 32, (add (sub GPRC, R0), ZERO)> {
+ // On non-Darwin PPC64 systems, R2 can be allocated, but must be restored, so
+ // put it at the end of the list.
+ let AltOrders = [(add (sub GPRC_NOR0, R2), R2)];
+ let AltOrderSelect = [{
+ const PPCSubtarget &S = MF.getSubtarget<PPCSubtarget>();
+ return S.isPPC64() && S.isSVR4ABI();
}];
- let MethodBodies = [{
- G8RCClass::iterator
- G8RCClass::allocation_order_begin(const MachineFunction &MF) const {
- // 64-bit SVR4 ABI: r2 is reserved for the TOC pointer.
- // Darwin: r2 is reserved for CR save/restore sequence.
- return begin()+1;
- }
- G8RCClass::iterator
- G8RCClass::allocation_order_end(const MachineFunction &MF) const {
- if (needsFP(MF))
- return end()-5;
- else
- return end()-4;
- }
+}
+
+def G8RC_NOX0 : RegisterClass<"PPC", [i64], 64, (add (sub G8RC, X0), ZERO8)> {
+ // On non-Darwin PPC64 systems, R2 can be allocated, but must be restored, so
+ // put it at the end of the list.
+ let AltOrders = [(add (sub G8RC_NOX0, X2), X2)];
+ let AltOrderSelect = [{
+ const PPCSubtarget &S = MF.getSubtarget<PPCSubtarget>();
+ return S.isPPC64() && S.isSVR4ABI();
}];
}
// previous stack frame. By allocating non-volatiles in reverse order we make
// sure that the Floating-point register save area is always as small as
// possible because there aren't any unused spill slots.
-def F8RC : RegisterClass<"PPC", [f64], 64, [F0, F1, F2, F3, F4, F5, F6, F7,
- F8, F9, F10, F11, F12, F13, F31, F30, F29, F28, F27, F26, F25, F24, F23,
- F22, F21, F20, F19, F18, F17, F16, F15, F14]>;
-def F4RC : RegisterClass<"PPC", [f32], 32, [F0, F1, F2, F3, F4, F5, F6, F7,
- F8, F9, F10, F11, F12, F13, F31, F30, F29, F28, F27, F26, F25, F24, F23,
- F22, F21, F20, F19, F18, F17, F16, F15, F14]>;
-
-def VRRC : RegisterClass<"PPC", [v16i8,v8i16,v4i32,v4f32], 128,
- [V2, V3, V4, V5, V0, V1,
- V6, V7, V8, V9, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V31, V30,
- V29, V28, V27, V26, V25, V24, V23, V22, V21, V20]>;
-
-def CRBITRC : RegisterClass<"PPC", [i32], 32,
- [CR0LT, CR0GT, CR0EQ, CR0UN,
- CR1LT, CR1GT, CR1EQ, CR1UN,
- CR2LT, CR2GT, CR2EQ, CR2UN,
- CR3LT, CR3GT, CR3EQ, CR3UN,
- CR4LT, CR4GT, CR4EQ, CR4UN,
- CR5LT, CR5GT, CR5EQ, CR5UN,
- CR6LT, CR6GT, CR6EQ, CR6UN,
- CR7LT, CR7GT, CR7EQ, CR7UN
- ]>
-{
- let CopyCost = -1;
+def F8RC : RegisterClass<"PPC", [f64], 64, (add (sequence "F%u", 0, 13),
+ (sequence "F%u", 31, 14))>;
+def F4RC : RegisterClass<"PPC", [f32], 32, (add F8RC)>;
+
+def VRRC : RegisterClass<"PPC", [v16i8,v8i16,v4i32,v2i64,v1i128,v4f32], 128,
+ (add V2, V3, V4, V5, V0, V1, V6, V7, V8, V9, V10, V11,
+ V12, V13, V14, V15, V16, V17, V18, V19, V31, V30,
+ V29, V28, V27, V26, V25, V24, V23, V22, V21, V20)>;
+
+// VSX register classes (the allocation order mirrors that of the corresponding
+// subregister classes).
+def VSLRC : RegisterClass<"PPC", [v4i32,v4f32,v2f64,v2i64], 128,
+ (add (sequence "VSL%u", 0, 13),
+ (sequence "VSL%u", 31, 14))>;
+def VSHRC : RegisterClass<"PPC", [v4i32,v4f32,v2f64,v2i64], 128,
+ (add VSH2, VSH3, VSH4, VSH5, VSH0, VSH1, VSH6, VSH7,
+ VSH8, VSH9, VSH10, VSH11, VSH12, VSH13, VSH14,
+ VSH15, VSH16, VSH17, VSH18, VSH19, VSH31, VSH30,
+ VSH29, VSH28, VSH27, VSH26, VSH25, VSH24, VSH23,
+ VSH22, VSH21, VSH20)>;
+def VSRC : RegisterClass<"PPC", [v4i32,v4f32,v2f64,v2i64], 128,
+ (add VSLRC, VSHRC)>;
+
+// Register classes for the 64-bit "scalar" VSX subregisters.
+def VFRC : RegisterClass<"PPC", [f64], 64,
+ (add VF2, VF3, VF4, VF5, VF0, VF1, VF6, VF7,
+ VF8, VF9, VF10, VF11, VF12, VF13, VF14,
+ VF15, VF16, VF17, VF18, VF19, VF31, VF30,
+ VF29, VF28, VF27, VF26, VF25, VF24, VF23,
+ VF22, VF21, VF20)>;
+def VSFRC : RegisterClass<"PPC", [f64], 64, (add F8RC, VFRC)>;
+
+// Register class for single precision scalars in VSX registers
+def VSSRC : RegisterClass<"PPC", [f32], 32, (add VSFRC)>;
+
+// For QPX
+def QFRC : RegisterClass<"PPC", [v4f64], 256, (add (sequence "QF%u", 0, 13),
+ (sequence "QF%u", 31, 14))>;
+def QSRC : RegisterClass<"PPC", [v4f32], 128, (add QFRC)>;
+def QBRC : RegisterClass<"PPC", [v4i1], 256, (add QFRC)> {
+ // These are actually stored as floating-point values where a positive
+ // number is true and anything else (including NaN) is false.
+ let Size = 256;
}
-def CRRC : RegisterClass<"PPC", [i32], 32, [CR0, CR1, CR5, CR6, CR7, CR2,
- CR3, CR4]>
-{
- let SubRegClassList = [CRBITRC, CRBITRC, CRBITRC, CRBITRC];
+def CRBITRC : RegisterClass<"PPC", [i1], 32,
+ (add CR2LT, CR2GT, CR2EQ, CR2UN,
+ CR3LT, CR3GT, CR3EQ, CR3UN,
+ CR4LT, CR4GT, CR4EQ, CR4UN,
+ CR5LT, CR5GT, CR5EQ, CR5UN,
+ CR6LT, CR6GT, CR6EQ, CR6UN,
+ CR7LT, CR7GT, CR7EQ, CR7UN,
+ CR1LT, CR1GT, CR1EQ, CR1UN,
+ CR0LT, CR0GT, CR0EQ, CR0UN)> {
+ let Size = 32;
}
-def CTRRC : RegisterClass<"PPC", [i32], 32, [CTR]>;
-def CTRRC8 : RegisterClass<"PPC", [i64], 64, [CTR8]>;
-def VRSAVERC : RegisterClass<"PPC", [i32], 32, [VRSAVE]>;
-def CARRYRC : RegisterClass<"PPC", [i32], 32, [CARRY]> {
+def CRRC : RegisterClass<"PPC", [i32], 32, (add CR0, CR1, CR5, CR6,
+ CR7, CR2, CR3, CR4)>;
+
+def CRRC0 : RegisterClass<"PPC", [i32], 32, (add CR0)>;
+
+// The CTR registers are not allocatable because they're used by the
+// decrement-and-branch instructions, and thus need to stay live across
+// multiple basic blocks.
+def CTRRC : RegisterClass<"PPC", [i32], 32, (add CTR)> {
+ let isAllocatable = 0;
+}
+def CTRRC8 : RegisterClass<"PPC", [i64], 64, (add CTR8)> {
+ let isAllocatable = 0;
+}
+
+def VRSAVERC : RegisterClass<"PPC", [i32], 32, (add VRSAVE)>;
+def CARRYRC : RegisterClass<"PPC", [i32], 32, (add CARRY)> {
let CopyCost = -1;
}
+
projects / oota-llvm.git / blobdiff