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Eliminate a bunch of redundant tables.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77558 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-07-30 00:40:42 +00:00
parent cf661e2c56
commit 084d1ba5ad
1 changed files with 61 additions and 167 deletions
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220
lib/Target/X86/X86RegisterInfo.td
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@ -270,42 +270,27 @@ def : SubRegSet<1, [YMM0, YMM1, YMM2, YMM3, YMM4, YMM5, YMM6, YMM7,
// require a REX prefix. For example, "addb %ah, %dil" and "movzbl %ah, %r8d" // require a REX prefix. For example, "addb %ah, %dil" and "movzbl %ah, %r8d"
// cannot be encoded. // cannot be encoded.
def GR8 : RegisterClass<"X86", [i8], 8, def GR8 : RegisterClass<"X86", [i8], 8,
[AL, CL, DL, BL, AH, CH, DH, BH, SIL, DIL, BPL, SPL, [AL, CL, DL, AH, CH, DH, BL, BH, SIL, DIL, BPL, SPL,
R8B, R9B, R10B, R11B, R14B, R15B, R12B, R13B]> { R8B, R9B, R10B, R11B, R14B, R15B, R12B, R13B]> {
let MethodProtos = [{ let MethodProtos = [{
iterator allocation_order_begin(const MachineFunction &MF) const; iterator allocation_order_begin(const MachineFunction &MF) const;
iterator allocation_order_end(const MachineFunction &MF) const; iterator allocation_order_end(const MachineFunction &MF) const;
}]; }];
let MethodBodies = [{ let MethodBodies = [{
// Does the function dedicate RBP / EBP to being a frame ptr?
// If so, don't allocate SPL or BPL.
static const unsigned X86_GR8_AO_64_fp[] = {
X86::AL, X86::CL, X86::DL, X86::SIL, X86::DIL,
X86::R8B, X86::R9B, X86::R10B, X86::R11B,
X86::BL, X86::R14B, X86::R15B, X86::R12B, X86::R13B
};
// If not, just don't allocate SPL.
static const unsigned X86_GR8_AO_64[] = { static const unsigned X86_GR8_AO_64[] = {
X86::AL, X86::CL, X86::DL, X86::SIL, X86::DIL, X86::AL, X86::CL, X86::DL, X86::SIL, X86::DIL,
X86::R8B, X86::R9B, X86::R10B, X86::R11B, X86::R8B, X86::R9B, X86::R10B, X86::R11B,
X86::BL, X86::R14B, X86::R15B, X86::R12B, X86::R13B, X86::BPL X86::BL, X86::R14B, X86::R15B, X86::R12B, X86::R13B, X86::BPL
}; };
// In 32-mode, none of the 8-bit registers aliases EBP or ESP.
static const unsigned X86_GR8_AO_32[] = {
X86::AL, X86::CL, X86::DL, X86::AH, X86::CH, X86::DH, X86::BL, X86::BH
};
GR8Class::iterator GR8Class::iterator
GR8Class::allocation_order_begin(const MachineFunction &MF) const { GR8Class::allocation_order_begin(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo();
const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>(); const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
if (!Subtarget.is64Bit()) if (Subtarget.is64Bit())
return X86_GR8_AO_32;
else if (RI->hasFP(MF))
return X86_GR8_AO_64_fp;
else
return X86_GR8_AO_64; return X86_GR8_AO_64;
else
return begin();
} }
GR8Class::iterator GR8Class::iterator
@ -313,11 +298,15 @@ def GR8 : RegisterClass<"X86", [i8], 8,
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo(); const TargetRegisterInfo *RI = TM.getRegisterInfo();
const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>(); const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
// Does the function dedicate RBP / EBP to being a frame ptr?
if (!Subtarget.is64Bit()) if (!Subtarget.is64Bit())
return array_endof(X86_GR8_AO_32); // In 32-mode, none of the 8-bit registers aliases EBP or ESP.
return begin() + 8;
else if (RI->hasFP(MF)) else if (RI->hasFP(MF))
return array_endof(X86_GR8_AO_64_fp); // If so, don't allocate SPL or BPL.
return array_endof(X86_GR8_AO_64) - 1;
else else
// If not, just don't allocate SPL.
return array_endof(X86_GR8_AO_64); return array_endof(X86_GR8_AO_64);
} }
}]; }];
@ -333,42 +322,20 @@ def GR16 : RegisterClass<"X86", [i16], 16,
iterator allocation_order_end(const MachineFunction &MF) const; iterator allocation_order_end(const MachineFunction &MF) const;
}]; }];
let MethodBodies = [{ let MethodBodies = [{
// Does the function dedicate RBP / EBP to being a frame ptr?
// If so, don't allocate SP or BP.
static const unsigned X86_GR16_AO_64_fp[] = {
X86::AX, X86::CX, X86::DX, X86::SI, X86::DI,
X86::R8W, X86::R9W, X86::R10W, X86::R11W,
X86::BX, X86::R14W, X86::R15W, X86::R12W, X86::R13W
};
static const unsigned X86_GR16_AO_32_fp[] = {
X86::AX, X86::CX, X86::DX, X86::SI, X86::DI, X86::BX
};
// If not, just don't allocate SP.
static const unsigned X86_GR16_AO_64[] = { static const unsigned X86_GR16_AO_64[] = {
X86::AX, X86::CX, X86::DX, X86::SI, X86::DI, X86::AX, X86::CX, X86::DX, X86::SI, X86::DI,
X86::R8W, X86::R9W, X86::R10W, X86::R11W, X86::R8W, X86::R9W, X86::R10W, X86::R11W,
X86::BX, X86::R14W, X86::R15W, X86::R12W, X86::R13W, X86::BP X86::BX, X86::R14W, X86::R15W, X86::R12W, X86::R13W, X86::BP
}; };
static const unsigned X86_GR16_AO_32[] = {
X86::AX, X86::CX, X86::DX, X86::SI, X86::DI, X86::BX, X86::BP
};
GR16Class::iterator GR16Class::iterator
GR16Class::allocation_order_begin(const MachineFunction &MF) const { GR16Class::allocation_order_begin(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo();
const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>(); const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
if (Subtarget.is64Bit()) { if (Subtarget.is64Bit())
if (RI->hasFP(MF))
return X86_GR16_AO_64_fp;
else
return X86_GR16_AO_64; return X86_GR16_AO_64;
} else {
if (RI->hasFP(MF))
return X86_GR16_AO_32_fp;
else else
return X86_GR16_AO_32; return begin();
}
} }
GR16Class::iterator GR16Class::iterator
@ -377,15 +344,21 @@ def GR16 : RegisterClass<"X86", [i16], 16,
const TargetRegisterInfo *RI = TM.getRegisterInfo(); const TargetRegisterInfo *RI = TM.getRegisterInfo();
const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>(); const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
if (Subtarget.is64Bit()) { if (Subtarget.is64Bit()) {
// Does the function dedicate RBP to being a frame ptr?
if (RI->hasFP(MF)) if (RI->hasFP(MF))
return array_endof(X86_GR16_AO_64_fp); // If so, don't allocate SP or BP.
return array_endof(X86_GR16_AO_64) - 1;
else else
// If not, just don't allocate SP.
return array_endof(X86_GR16_AO_64); return array_endof(X86_GR16_AO_64);
} else { } else {
// Does the function dedicate EBP to being a frame ptr?
if (RI->hasFP(MF)) if (RI->hasFP(MF))
return array_endof(X86_GR16_AO_32_fp); // If so, don't allocate SP or BP.
return begin() + 6;
else else
return array_endof(X86_GR16_AO_32); // If not, just don't allocate SP.
return begin() + 7;
} }
} }
}]; }];
@ -401,42 +374,20 @@ def GR32 : RegisterClass<"X86", [i32], 32,
iterator allocation_order_end(const MachineFunction &MF) const; iterator allocation_order_end(const MachineFunction &MF) const;
}]; }];
let MethodBodies = [{ let MethodBodies = [{
// Does the function dedicate RBP / EBP to being a frame ptr?
// If so, don't allocate ESP or EBP.
static const unsigned X86_GR32_AO_64_fp[] = {
X86::EAX, X86::ECX, X86::EDX, X86::ESI, X86::EDI,
X86::R8D, X86::R9D, X86::R10D, X86::R11D,
X86::EBX, X86::R14D, X86::R15D, X86::R12D, X86::R13D
};
static const unsigned X86_GR32_AO_32_fp[] = {
X86::EAX, X86::ECX, X86::EDX, X86::ESI, X86::EDI, X86::EBX
};
// If not, just don't allocate ESP.
static const unsigned X86_GR32_AO_64[] = { static const unsigned X86_GR32_AO_64[] = {
X86::EAX, X86::ECX, X86::EDX, X86::ESI, X86::EDI, X86::EAX, X86::ECX, X86::EDX, X86::ESI, X86::EDI,
X86::R8D, X86::R9D, X86::R10D, X86::R11D, X86::R8D, X86::R9D, X86::R10D, X86::R11D,
X86::EBX, X86::R14D, X86::R15D, X86::R12D, X86::R13D, X86::EBP X86::EBX, X86::R14D, X86::R15D, X86::R12D, X86::R13D, X86::EBP
}; };
static const unsigned X86_GR32_AO_32[] = {
X86::EAX, X86::ECX, X86::EDX, X86::ESI, X86::EDI, X86::EBX, X86::EBP
};
GR32Class::iterator GR32Class::iterator
GR32Class::allocation_order_begin(const MachineFunction &MF) const { GR32Class::allocation_order_begin(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo();
const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>(); const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
if (Subtarget.is64Bit()) { if (Subtarget.is64Bit())
if (RI->hasFP(MF))
return X86_GR32_AO_64_fp;
else
return X86_GR32_AO_64; return X86_GR32_AO_64;
} else {
if (RI->hasFP(MF))
return X86_GR32_AO_32_fp;
else else
return X86_GR32_AO_32; return begin();
}
} }
GR32Class::iterator GR32Class::iterator
@ -445,15 +396,21 @@ def GR32 : RegisterClass<"X86", [i32], 32,
const TargetRegisterInfo *RI = TM.getRegisterInfo(); const TargetRegisterInfo *RI = TM.getRegisterInfo();
const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>(); const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
if (Subtarget.is64Bit()) { if (Subtarget.is64Bit()) {
// Does the function dedicate RBP to being a frame ptr?
if (RI->hasFP(MF)) if (RI->hasFP(MF))
return array_endof(X86_GR32_AO_64_fp); // If so, don't allocate ESP or EBP.
return array_endof(X86_GR32_AO_64) - 1;
else else
// If not, just don't allocate ESP.
return array_endof(X86_GR32_AO_64); return array_endof(X86_GR32_AO_64);
} else { } else {
// Does the function dedicate EBP to being a frame ptr?
if (RI->hasFP(MF)) if (RI->hasFP(MF))
return array_endof(X86_GR32_AO_32_fp); // If so, don't allocate ESP or EBP.
return begin() + 6;
else else
return array_endof(X86_GR32_AO_32); // If not, just don't allocate ESP.
return begin() + 7;
} }
} }
}]; }];
@ -509,38 +466,25 @@ def GR64_ABCD : RegisterClass<"X86", [i64], 64, [RAX, RCX, RDX, RBX]> {
// On x86-64, GR64_NOREX, GR32_NOREX and GR16_NOREX are the classes // On x86-64, GR64_NOREX, GR32_NOREX and GR16_NOREX are the classes
// of registers which do not by themselves require a REX prefix. // of registers which do not by themselves require a REX prefix.
def GR8_NOREX : RegisterClass<"X86", [i8], 8, def GR8_NOREX : RegisterClass<"X86", [i8], 8,
[AL, CL, DL, BL, AH, CH, DH, BH, [AL, CL, DL, AH, CH, DH, BL, BH,
SIL, DIL, BPL, SPL]> { SIL, DIL, BPL, SPL]> {
let MethodProtos = [{ let MethodProtos = [{
iterator allocation_order_begin(const MachineFunction &MF) const; iterator allocation_order_begin(const MachineFunction &MF) const;
iterator allocation_order_end(const MachineFunction &MF) const; iterator allocation_order_end(const MachineFunction &MF) const;
}]; }];
let MethodBodies = [{ let MethodBodies = [{
// Does the function dedicate RBP / EBP to being a frame ptr?
// If so, don't allocate SPL or BPL.
static const unsigned X86_GR8_NOREX_AO_64_fp[] = {
X86::AL, X86::CL, X86::DL, X86::SIL, X86::DIL, X86::BL
};
// If not, just don't allocate SPL.
static const unsigned X86_GR8_NOREX_AO_64[] = { static const unsigned X86_GR8_NOREX_AO_64[] = {
X86::AL, X86::CL, X86::DL, X86::SIL, X86::DIL, X86::BL, X86::BPL X86::AL, X86::CL, X86::DL, X86::SIL, X86::DIL, X86::BL, X86::BPL
}; };
// In 32-mode, none of the 8-bit registers aliases EBP or ESP.
static const unsigned X86_GR8_NOREX_AO_32[] = {
X86::AL, X86::CL, X86::DL, X86::AH, X86::CH, X86::DH, X86::BL, X86::BH
};
GR8_NOREXClass::iterator GR8_NOREXClass::iterator
GR8_NOREXClass::allocation_order_begin(const MachineFunction &MF) const { GR8_NOREXClass::allocation_order_begin(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo();
const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>(); const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
if (!Subtarget.is64Bit()) if (Subtarget.is64Bit())
return X86_GR8_NOREX_AO_32;
else if (RI->hasFP(MF))
return X86_GR8_NOREX_AO_64_fp;
else
return X86_GR8_NOREX_AO_64; return X86_GR8_NOREX_AO_64;
else
return begin();
} }
GR8_NOREXClass::iterator GR8_NOREXClass::iterator
@ -548,11 +492,15 @@ def GR8_NOREX : RegisterClass<"X86", [i8], 8,
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo(); const TargetRegisterInfo *RI = TM.getRegisterInfo();
const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>(); const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
// Does the function dedicate RBP / EBP to being a frame ptr?
if (!Subtarget.is64Bit()) if (!Subtarget.is64Bit())
return array_endof(X86_GR8_NOREX_AO_32); // In 32-mode, none of the 8-bit registers aliases EBP or ESP.
return begin() + 8;
else if (RI->hasFP(MF)) else if (RI->hasFP(MF))
return array_endof(X86_GR8_NOREX_AO_64_fp); // If so, don't allocate SPL or BPL.
return array_endof(X86_GR8_NOREX_AO_64) - 1;
else else
// If not, just don't allocate SPL.
return array_endof(X86_GR8_NOREX_AO_64); return array_endof(X86_GR8_NOREX_AO_64);
} }
}]; }];
@ -561,38 +509,20 @@ def GR16_NOREX : RegisterClass<"X86", [i16], 16,
[AX, CX, DX, SI, DI, BX, BP, SP]> { [AX, CX, DX, SI, DI, BX, BP, SP]> {
let SubRegClassList = [GR8_NOREX, GR8_NOREX]; let SubRegClassList = [GR8_NOREX, GR8_NOREX];
let MethodProtos = [{ let MethodProtos = [{
iterator allocation_order_begin(const MachineFunction &MF) const;
iterator allocation_order_end(const MachineFunction &MF) const; iterator allocation_order_end(const MachineFunction &MF) const;
}]; }];
let MethodBodies = [{ let MethodBodies = [{
// Does the function dedicate RBP / EBP to being a frame ptr?
// If so, don't allocate SP or BP.
static const unsigned X86_GR16_AO_fp[] = {
X86::AX, X86::CX, X86::DX, X86::SI, X86::DI, X86::BX
};
// If not, just don't allocate SP.
static const unsigned X86_GR16_AO[] = {
X86::AX, X86::CX, X86::DX, X86::SI, X86::DI, X86::BX, X86::BP
};
GR16_NOREXClass::iterator
GR16_NOREXClass::allocation_order_begin(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo();
if (RI->hasFP(MF))
return X86_GR16_AO_fp;
else
return X86_GR16_AO;
}
GR16_NOREXClass::iterator GR16_NOREXClass::iterator
GR16_NOREXClass::allocation_order_end(const MachineFunction &MF) const { GR16_NOREXClass::allocation_order_end(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo(); const TargetRegisterInfo *RI = TM.getRegisterInfo();
// Does the function dedicate RBP / EBP to being a frame ptr?
if (RI->hasFP(MF)) if (RI->hasFP(MF))
return array_endof(X86_GR16_AO_fp); // If so, don't allocate SP or BP.
return end() - 2;
else else
return array_endof(X86_GR16_AO); // If not, just don't allocate SP.
return end() - 1;
} }
}]; }];
} }
@ -601,38 +531,20 @@ def GR32_NOREX : RegisterClass<"X86", [i32], 32,
[EAX, ECX, EDX, ESI, EDI, EBX, EBP, ESP]> { [EAX, ECX, EDX, ESI, EDI, EBX, EBP, ESP]> {
let SubRegClassList = [GR8_NOREX, GR8_NOREX, GR16_NOREX]; let SubRegClassList = [GR8_NOREX, GR8_NOREX, GR16_NOREX];
let MethodProtos = [{ let MethodProtos = [{
iterator allocation_order_begin(const MachineFunction &MF) const;
iterator allocation_order_end(const MachineFunction &MF) const; iterator allocation_order_end(const MachineFunction &MF) const;
}]; }];
let MethodBodies = [{ let MethodBodies = [{
// Does the function dedicate RBP / EBP to being a frame ptr?
// If so, don't allocate ESP or EBP.
static const unsigned X86_GR32_NOREX_AO_fp[] = {
X86::EAX, X86::ECX, X86::EDX, X86::ESI, X86::EDI, X86::EBX
};
// If not, just don't allocate ESP.
static const unsigned X86_GR32_NOREX_AO[] = {
X86::EAX, X86::ECX, X86::EDX, X86::ESI, X86::EDI, X86::EBX, X86::EBP
};
GR32_NOREXClass::iterator
GR32_NOREXClass::allocation_order_begin(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo();
if (RI->hasFP(MF))
return X86_GR32_NOREX_AO_fp;
else
return X86_GR32_NOREX_AO;
}
GR32_NOREXClass::iterator GR32_NOREXClass::iterator
GR32_NOREXClass::allocation_order_end(const MachineFunction &MF) const { GR32_NOREXClass::allocation_order_end(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo(); const TargetRegisterInfo *RI = TM.getRegisterInfo();
// Does the function dedicate RBP / EBP to being a frame ptr?
if (RI->hasFP(MF)) if (RI->hasFP(MF))
return array_endof(X86_GR32_NOREX_AO_fp); // If so, don't allocate ESP or EBP.
return end() - 2;
else else
return array_endof(X86_GR32_NOREX_AO); // If not, just don't allocate ESP.
return end() - 1;
} }
}]; }];
} }
@ -642,38 +554,20 @@ def GR64_NOREX : RegisterClass<"X86", [i64], 64,
[RAX, RCX, RDX, RSI, RDI, RBX, RBP, RSP]> { [RAX, RCX, RDX, RSI, RDI, RBX, RBP, RSP]> {
let SubRegClassList = [GR8_NOREX, GR8_NOREX, GR16_NOREX, GR32_NOREX]; let SubRegClassList = [GR8_NOREX, GR8_NOREX, GR16_NOREX, GR32_NOREX];
let MethodProtos = [{ let MethodProtos = [{
iterator allocation_order_begin(const MachineFunction &MF) const;
iterator allocation_order_end(const MachineFunction &MF) const; iterator allocation_order_end(const MachineFunction &MF) const;
}]; }];
let MethodBodies = [{ let MethodBodies = [{
// Does the function dedicate RBP / EBP to being a frame ptr?
// If so, don't allocate RSP or RBP.
static const unsigned X86_GR64_NOREX_AO_fp[] = {
X86::RAX, X86::RCX, X86::RDX, X86::RSI, X86::RDI, X86::RBX
};
// If not, just don't allocate RSP.
static const unsigned X86_GR64_NOREX_AO[] = {
X86::RAX, X86::RCX, X86::RDX, X86::RSI, X86::RDI, X86::RBX, X86::RBP
};
GR64_NOREXClass::iterator
GR64_NOREXClass::allocation_order_begin(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo();
if (RI->hasFP(MF))
return X86_GR64_NOREX_AO_fp;
else
return X86_GR64_NOREX_AO;
}
GR64_NOREXClass::iterator GR64_NOREXClass::iterator
GR64_NOREXClass::allocation_order_end(const MachineFunction &MF) const { GR64_NOREXClass::allocation_order_end(const MachineFunction &MF) const {
const TargetMachine &TM = MF.getTarget(); const TargetMachine &TM = MF.getTarget();
const TargetRegisterInfo *RI = TM.getRegisterInfo(); const TargetRegisterInfo *RI = TM.getRegisterInfo();
// Does the function dedicate RBP / EBP to being a frame ptr?
if (RI->hasFP(MF)) if (RI->hasFP(MF))
return array_endof(X86_GR64_NOREX_AO_fp); // If so, don't allocate RSP or RBP.
return end() - 2;
else else
return array_endof(X86_GR64_NOREX_AO); // If not, just don't allocate RSP.
return end() - 1;
} }
}]; }];
} }