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Revert previous rewrite per chris's comments.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43950 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2007-11-09 18:07:11 +00:00
parent 7b52fe7272
commit 7a42f24f0c
2 changed files with 154 additions and 205 deletions
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133
lib/Target/X86/X86RegisterInfo.cpp
View File

@ -665,100 +665,47 @@ X86RegisterInfo::X86RegisterInfo(X86TargetMachine &tm,
// for exception handling.
int X86RegisterInfo::getDwarfRegNum(unsigned RegNo) const {
static const int dwarf_64bit[] = {
// none, ah, al, ax, bh, bl, bp, bpl, bx, ch,
-1, 0, 0, 0, 3, 3, 6, 6, 3, 2,
// cl, cx, dh, di, dil, dl, dx, eax, ebp, ebx,
2, 2, 1, 5, 5, 1, 1, 0, 6, 3,
// ecx, edi, edx, efl, eip, esi, esp, fp0, fp1, fp2,
2, 5, 1, -1, 16, 4, 7, -1, -1, -1,
// fp3, fp4, fp5, fp6, ip, mm0, mm1, mm2, mm3, mm4,
-1, -1, -1, -1, 16, 41, 42, 43, 44, 45,
// mm5, mm6, mm7, r10, r10b, r10d, r10w, r11, r11b, r11d,
46, 47, 48, 10, 10, 10, 10, 11, 11, 11,
// r11w, r12, r12b, r12d, r12w, r13, r13b, r13d, r13w, r14,
11, 12, 12, 12, 12, 13, 13, 13, 13, 14,
// r14b, r14d, r14w, r15, r15b, r15d, r15w, r8, r8b, r8d,
14, 14, 14, 15, 15, 15, 15, 8, 8, 8,
// r8w, r9, r9b, r9d, r9w, rax, rbp, rbx, rcx, rdi,
8, 9, 9, 9, 9, 0, 6, 3, 2, 5,
// rdx, rip, rsi, rsp, si, sil, sp, spl, st0, st1,
1, 16, 4, 7, 4, 4, 7, 7, 33, 34,
// st2, st3, st4, st5, st6, st7, xmm0, xmm1,xmm10,xmm11,
35, 36, 37, 38, 39, 40, 17, 18, 27, 28,
//xmm12,xmm13,xmm14,xmm15, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
29, 30, 31, 32, 19, 20, 21, 22, 23, 24,
// xmm8, xmm9
25, 26 };
static const int dwarf_32bit_darwin[] = {
// none, ah, al, ax, bh, bl, bp, bpl, bx, ch,
-1, 0, 0, 0, 3, 3, 4, 4, 3, 1,
// cl, cx, dh, di, dil, dl, dx, eax, ebp, ebx,
1, 1, 2, 7, 7, 2, 2, 0, 4, 3,
// ecx, edi, edx, efl, eip, esi, esp, fp0, fp1, fp2,
1, 7, 2, -1, 8, 6, 5, -1, -1, -1,
// fp3, fp4, fp5, fp6, ip, mm0, mm1, mm2, mm3, mm4,
-1, -1, -1, -1, 8, 29, 30, 31, 32, 33,
// mm5, mm6, mm7, r10, r10b, r10d, r10w, r11, r11b, r11d,
34, 35, 36, -1, -1, -1, -1, -1, -1, -1,
// r11w, r12, r12b, r12d, r12w, r13, r13b, r13d, r13w, r14,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
// r14b, r14d, r14w, r15, r15b, r15d, r15w, r8, r8b, r8d,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
// r8w, r9, r9b, r9d, r9w, rax, rbp, rbx, rcx, rdi,
-1, -1, -1, -1, -1, 0, 4, 3, 1, 7,
// rdx, rip, rsi, rsp, si, sil, sp, spl, st0, st1,
2, 8, 6, 5, 6, 6, 5, 5, 12, 13,
// st2, st3, st4, st5, st6, st7, xmm0, xmm1,xmm10,xmm11,
14, 15, 16, 17, 18, 19, 21, 22, -1, -1,
//xmm12,xmm13,xmm14,xmm15, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
-1, -1, -1, -1, 23, 24, 25, 26, 27, 28,
// xmm8, xmm9
-1, -1 };
static const int dwarf_32bit_linux[] = {
// none, ah, al, ax, bh, bl, bp, bpl, bx, ch,
-1, 0, 0, 0, 3, 3, 5, 5, 3, 1,
// cl, cx, dh, di, dil, dl, dx, eax, ebp, ebx,
1, 1, 2, 7, 7, 2, 2, 0, 5, 3,
// ecx, edi, edx, efl, eip, esi, esp, fp0, fp1, fp2,
1, 7, 2, -1, 8, 6, 4, -1, -1, -1,
// fp3, fp4, fp5, fp6, ip, mm0, mm1, mm2, mm3, mm4,
-1, -1, -1, -1, 8, 29, 30, 31, 32, 33,
// mm5, mm6, mm7, r10, r10b, r10d, r10w, r11, r11b, r11d,
34, 35, 36, -1, -1, -1, -1, -1, -1, -1,
// r11w, r12, r12b, r12d, r12w, r13, r13b, r13d, r13w, r14,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
// r14b, r14d, r14w, r15, r15b, r15d, r15w, r8, r8b, r8d,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
// r8w, r9, r9b, r9d, r9w, rax, rbp, rbx, rcx, rdi,
-1, -1, -1, -1, -1, 0, 5, 3, 1, 7,
// rdx, rip, rsi, rsp, si, sil, sp, spl, st0, st1,
2, 8, 6, 4, 6, 6, 4, 4, 11, 12,
// st2, st3, st4, st5, st6, st7, xmm0, xmm1,xmm10,xmm11,
13, 14, 15, 16, 17, 18, 21, 22, -1, -1,
//xmm12,xmm13,xmm14,xmm15, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
-1, -1, -1, -1, 23, 24, 25, 26, 27, 28,
// xmm8, xmm9
-1, -1 };
const unsigned nelts = sizeof(dwarf_64bit) / sizeof(int);
int n;
int n = X86GenRegisterInfo::getDwarfRegNum(RegNo);
const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
if (RegNo >= nelts) {
assert(0 && "Invalid argument to getDwarfRegNum");
return -1;
}
if (Subtarget->is64Bit())
n = dwarf_64bit[RegNo];
else if (Subtarget->isDarwin)
n = dwarf_32bit_darwin[RegNo];
else
n = dwarf_32bit_linux[RegNo];
if (n == -1) {
assert(0 && "Invalid register in getDwarfRegNum");
return -1;
if (!Subtarget->is64Bit()) {
// Numbers are all different for 32-bit. Further, some of them
// differ between Darwin and other targets.
switch (n) {
default: assert(0 && "Invalid argument to getDwarfRegNum");
return n;
case 0: return 0; // ax
case 1: return 2; // dx
case 2: return 1; // cx
case 3: return 3; // bx
case 4: return 6; // si
case 5: return 7; // di
case 6: return (Subtarget->isDarwin) ? 4 : 5; // bp
case 7: return (Subtarget->isDarwin) ? 5 : 4; // sp
case 8: case 9: case 10: case 11: // r8..r15
case 12: case 13: case 14: case 15:
assert(0 && "Invalid register in 32-bit mode");
return n;
case 16: return 8; // ip
case 17: case 18: case 19: case 20: // xmm0..xmm7
case 21: case 22: case 23: case 24:
return n+4;
case 25: case 26: case 27: case 28: // xmm8..xmm15
case 29: case 30: case 31: case 32:
assert(0 && "Invalid register in 32-bit mode");
return n;
case 33: case 34: case 35: case 36: // st0..st7
case 37: case 38: case 39: case 40:
return (Subtarget->isDarwin) ? n-21 : n-22;
case 41: case 42: case 43: case 44: // mm0..mm7
case 45: case 46: case 47: case 48:
return n-12;
}
}
return n;
}

226
lib/Target/X86/X86RegisterInfo.td
View File

@ -24,146 +24,148 @@ let Namespace = "X86" in {
// AL aliases AX if we tell it that AX aliased AL (for example).
// Dwarf numbering is different for 32-bit and 64-bit, and there are
// variations by target as well. Thus it is not encoded here;
// see X86RegisterInfo::getDwarfRegNum.
// variations by target as well. The numbers here are for 64-bit.
// They are altered by X86RegisterInfo::getDwarfRegNum at runtime. Note
// that we can't assign the same number here to different registers, as
// getDwarfRegNum has only the number here to work with.
// 8-bit registers
// Low registers
def AL : Register<"AL">;
def DL : Register<"DL">;
def CL : Register<"CL">;
def BL : Register<"BL">;
def AL : Register<"AL">, DwarfRegNum<0>;
def DL : Register<"DL">, DwarfRegNum<1>;
def CL : Register<"CL">, DwarfRegNum<2>;
def BL : Register<"BL">, DwarfRegNum<3>;
// X86-64 only
def SIL : Register<"SIL">;
def DIL : Register<"DIL">;
def BPL : Register<"BPL">;
def SPL : Register<"SPL">;
def R8B : Register<"R8B">;
def R9B : Register<"R9B">;
def R10B : Register<"R10B">;
def R11B : Register<"R11B">;
def R12B : Register<"R12B">;
def R13B : Register<"R13B">;
def R14B : Register<"R14B">;
def R15B : Register<"R15B">;
def SIL : Register<"SIL">, DwarfRegNum<4>;
def DIL : Register<"DIL">, DwarfRegNum<5>;
def BPL : Register<"BPL">, DwarfRegNum<6>;
def SPL : Register<"SPL">, DwarfRegNum<7>;
def R8B : Register<"R8B">, DwarfRegNum<8>;
def R9B : Register<"R9B">, DwarfRegNum<9>;
def R10B : Register<"R10B">, DwarfRegNum<10>;
def R11B : Register<"R11B">, DwarfRegNum<11>;
def R12B : Register<"R12B">, DwarfRegNum<12>;
def R13B : Register<"R13B">, DwarfRegNum<13>;
def R14B : Register<"R14B">, DwarfRegNum<14>;
def R15B : Register<"R15B">, DwarfRegNum<15>;
// High registers X86-32 only
def AH : Register<"AH">;
def DH : Register<"DH">;
def CH : Register<"CH">;
def BH : Register<"BH">;
def AH : Register<"AH">, DwarfRegNum<0>;
def DH : Register<"DH">, DwarfRegNum<1>;
def CH : Register<"CH">, DwarfRegNum<2>;
def BH : Register<"BH">, DwarfRegNum<3>;
// 16-bit registers
def AX : RegisterWithSubRegs<"AX", [AH,AL]>;
def DX : RegisterWithSubRegs<"DX", [DH,DL]>;
def CX : RegisterWithSubRegs<"CX", [CH,CL]>;
def BX : RegisterWithSubRegs<"BX", [BH,BL]>;
def SI : RegisterWithSubRegs<"SI", [SIL]>;
def DI : RegisterWithSubRegs<"DI", [DIL]>;
def BP : RegisterWithSubRegs<"BP", [BPL]>;
def SP : RegisterWithSubRegs<"SP", [SPL]>;
def IP : Register<"IP">;
def AX : RegisterWithSubRegs<"AX", [AH,AL]>, DwarfRegNum<0>;
def DX : RegisterWithSubRegs<"DX", [DH,DL]>, DwarfRegNum<1>;
def CX : RegisterWithSubRegs<"CX", [CH,CL]>, DwarfRegNum<2>;
def BX : RegisterWithSubRegs<"BX", [BH,BL]>, DwarfRegNum<3>;
def SI : RegisterWithSubRegs<"SI", [SIL]>, DwarfRegNum<4>;
def DI : RegisterWithSubRegs<"DI", [DIL]>, DwarfRegNum<5>;
def BP : RegisterWithSubRegs<"BP", [BPL]>, DwarfRegNum<6>;
def SP : RegisterWithSubRegs<"SP", [SPL]>, DwarfRegNum<7>;
def IP : Register<"IP">, DwarfRegNum<16>;
// X86-64 only
def R8W : RegisterWithSubRegs<"R8W", [R8B]>;
def R9W : RegisterWithSubRegs<"R9W", [R9B]>;
def R10W : RegisterWithSubRegs<"R10W", [R10B]>;
def R11W : RegisterWithSubRegs<"R11W", [R11B]>;
def R12W : RegisterWithSubRegs<"R12W", [R12B]>;
def R13W : RegisterWithSubRegs<"R13W", [R13B]>;
def R14W : RegisterWithSubRegs<"R14W", [R14B]>;
def R15W : RegisterWithSubRegs<"R15W", [R15B]>;
def R8W : RegisterWithSubRegs<"R8W", [R8B]>, DwarfRegNum<8>;
def R9W : RegisterWithSubRegs<"R9W", [R9B]>, DwarfRegNum<9>;
def R10W : RegisterWithSubRegs<"R10W", [R10B]>, DwarfRegNum<10>;
def R11W : RegisterWithSubRegs<"R11W", [R11B]>, DwarfRegNum<11>;
def R12W : RegisterWithSubRegs<"R12W", [R12B]>, DwarfRegNum<12>;
def R13W : RegisterWithSubRegs<"R13W", [R13B]>, DwarfRegNum<13>;
def R14W : RegisterWithSubRegs<"R14W", [R14B]>, DwarfRegNum<14>;
def R15W : RegisterWithSubRegs<"R15W", [R15B]>, DwarfRegNum<15>;
// 32-bit registers
def EAX : RegisterWithSubRegs<"EAX", [AX]>;
def EDX : RegisterWithSubRegs<"EDX", [DX]>;
def ECX : RegisterWithSubRegs<"ECX", [CX]>;
def EBX : RegisterWithSubRegs<"EBX", [BX]>;
def ESI : RegisterWithSubRegs<"ESI", [SI]>;
def EDI : RegisterWithSubRegs<"EDI", [DI]>;
def EBP : RegisterWithSubRegs<"EBP", [BP]>;
def ESP : RegisterWithSubRegs<"ESP", [SP]>;
def EIP : RegisterWithSubRegs<"EIP", [IP]>;
def EAX : RegisterWithSubRegs<"EAX", [AX]>, DwarfRegNum<0>;
def EDX : RegisterWithSubRegs<"EDX", [DX]>, DwarfRegNum<1>;
def ECX : RegisterWithSubRegs<"ECX", [CX]>, DwarfRegNum<2>;
def EBX : RegisterWithSubRegs<"EBX", [BX]>, DwarfRegNum<3>;
def ESI : RegisterWithSubRegs<"ESI", [SI]>, DwarfRegNum<4>;
def EDI : RegisterWithSubRegs<"EDI", [DI]>, DwarfRegNum<5>;
def EBP : RegisterWithSubRegs<"EBP", [BP]>, DwarfRegNum<6>;
def ESP : RegisterWithSubRegs<"ESP", [SP]>, DwarfRegNum<7>;
def EIP : RegisterWithSubRegs<"EIP", [IP]>, DwarfRegNum<16>;
// X86-64 only
def R8D : RegisterWithSubRegs<"R8D", [R8W]>;
def R9D : RegisterWithSubRegs<"R9D", [R9W]>;
def R10D : RegisterWithSubRegs<"R10D", [R10W]>;
def R11D : RegisterWithSubRegs<"R11D", [R11W]>;
def R12D : RegisterWithSubRegs<"R12D", [R12W]>;
def R13D : RegisterWithSubRegs<"R13D", [R13W]>;
def R14D : RegisterWithSubRegs<"R14D", [R14W]>;
def R15D : RegisterWithSubRegs<"R15D", [R15W]>;
def R8D : RegisterWithSubRegs<"R8D", [R8W]>, DwarfRegNum<8>;
def R9D : RegisterWithSubRegs<"R9D", [R9W]>, DwarfRegNum<9>;
def R10D : RegisterWithSubRegs<"R10D", [R10W]>, DwarfRegNum<10>;
def R11D : RegisterWithSubRegs<"R11D", [R11W]>, DwarfRegNum<11>;
def R12D : RegisterWithSubRegs<"R12D", [R12W]>, DwarfRegNum<12>;
def R13D : RegisterWithSubRegs<"R13D", [R13W]>, DwarfRegNum<13>;
def R14D : RegisterWithSubRegs<"R14D", [R14W]>, DwarfRegNum<14>;
def R15D : RegisterWithSubRegs<"R15D", [R15W]>, DwarfRegNum<15>;
// 64-bit registers, X86-64 only
def RAX : RegisterWithSubRegs<"RAX", [EAX]>;
def RDX : RegisterWithSubRegs<"RDX", [EDX]>;
def RCX : RegisterWithSubRegs<"RCX", [ECX]>;
def RBX : RegisterWithSubRegs<"RBX", [EBX]>;
def RSI : RegisterWithSubRegs<"RSI", [ESI]>;
def RDI : RegisterWithSubRegs<"RDI", [EDI]>;
def RBP : RegisterWithSubRegs<"RBP", [EBP]>;
def RSP : RegisterWithSubRegs<"RSP", [ESP]>;
def RAX : RegisterWithSubRegs<"RAX", [EAX]>, DwarfRegNum<0>;
def RDX : RegisterWithSubRegs<"RDX", [EDX]>, DwarfRegNum<1>;
def RCX : RegisterWithSubRegs<"RCX", [ECX]>, DwarfRegNum<2>;
def RBX : RegisterWithSubRegs<"RBX", [EBX]>, DwarfRegNum<3>;
def RSI : RegisterWithSubRegs<"RSI", [ESI]>, DwarfRegNum<4>;
def RDI : RegisterWithSubRegs<"RDI", [EDI]>, DwarfRegNum<5>;
def RBP : RegisterWithSubRegs<"RBP", [EBP]>, DwarfRegNum<6>;
def RSP : RegisterWithSubRegs<"RSP", [ESP]>, DwarfRegNum<7>;
def R8 : RegisterWithSubRegs<"R8", [R8D]>;
def R9 : RegisterWithSubRegs<"R9", [R9D]>;
def R10 : RegisterWithSubRegs<"R10", [R10D]>;
def R11 : RegisterWithSubRegs<"R11", [R11D]>;
def R12 : RegisterWithSubRegs<"R12", [R12D]>;
def R13 : RegisterWithSubRegs<"R13", [R13D]>;
def R14 : RegisterWithSubRegs<"R14", [R14D]>;
def R15 : RegisterWithSubRegs<"R15", [R15D]>;
def RIP : RegisterWithSubRegs<"RIP", [EIP]>;
def R8 : RegisterWithSubRegs<"R8", [R8D]>, DwarfRegNum<8>;
def R9 : RegisterWithSubRegs<"R9", [R9D]>, DwarfRegNum<9>;
def R10 : RegisterWithSubRegs<"R10", [R10D]>, DwarfRegNum<10>;
def R11 : RegisterWithSubRegs<"R11", [R11D]>, DwarfRegNum<11>;
def R12 : RegisterWithSubRegs<"R12", [R12D]>, DwarfRegNum<12>;
def R13 : RegisterWithSubRegs<"R13", [R13D]>, DwarfRegNum<13>;
def R14 : RegisterWithSubRegs<"R14", [R14D]>, DwarfRegNum<14>;
def R15 : RegisterWithSubRegs<"R15", [R15D]>, DwarfRegNum<15>;
def RIP : RegisterWithSubRegs<"RIP", [EIP]>, DwarfRegNum<16>;
// MMX Registers. These are actually aliased to ST0 .. ST7
def MM0 : Register<"MM0">;
def MM1 : Register<"MM1">;
def MM2 : Register<"MM2">;
def MM3 : Register<"MM3">;
def MM4 : Register<"MM4">;
def MM5 : Register<"MM5">;
def MM6 : Register<"MM6">;
def MM7 : Register<"MM7">;
def MM0 : Register<"MM0">, DwarfRegNum<41>;
def MM1 : Register<"MM1">, DwarfRegNum<42>;
def MM2 : Register<"MM2">, DwarfRegNum<43>;
def MM3 : Register<"MM3">, DwarfRegNum<44>;
def MM4 : Register<"MM4">, DwarfRegNum<45>;
def MM5 : Register<"MM5">, DwarfRegNum<46>;
def MM6 : Register<"MM6">, DwarfRegNum<47>;
def MM7 : Register<"MM7">, DwarfRegNum<48>;
// Pseudo Floating Point registers
def FP0 : Register<"FP0">;
def FP1 : Register<"FP1">;
def FP2 : Register<"FP2">;
def FP3 : Register<"FP3">;
def FP4 : Register<"FP4">;
def FP5 : Register<"FP5">;
def FP6 : Register<"FP6">;
def FP0 : Register<"FP0">, DwarfRegNum<-1>;
def FP1 : Register<"FP1">, DwarfRegNum<-1>;
def FP2 : Register<"FP2">, DwarfRegNum<-1>;
def FP3 : Register<"FP3">, DwarfRegNum<-1>;
def FP4 : Register<"FP4">, DwarfRegNum<-1>;
def FP5 : Register<"FP5">, DwarfRegNum<-1>;
def FP6 : Register<"FP6">, DwarfRegNum<-1>;
// XMM Registers, used by the various SSE instruction set extensions
def XMM0: Register<"XMM0">;
def XMM1: Register<"XMM1">;
def XMM2: Register<"XMM2">;
def XMM3: Register<"XMM3">;
def XMM4: Register<"XMM4">;
def XMM5: Register<"XMM5">;
def XMM6: Register<"XMM6">;
def XMM7: Register<"XMM7">;
def XMM0: Register<"XMM0">, DwarfRegNum<17>;
def XMM1: Register<"XMM1">, DwarfRegNum<18>;
def XMM2: Register<"XMM2">, DwarfRegNum<19>;
def XMM3: Register<"XMM3">, DwarfRegNum<20>;
def XMM4: Register<"XMM4">, DwarfRegNum<21>;
def XMM5: Register<"XMM5">, DwarfRegNum<22>;
def XMM6: Register<"XMM6">, DwarfRegNum<23>;
def XMM7: Register<"XMM7">, DwarfRegNum<24>;
// X86-64 only
def XMM8: Register<"XMM8">;
def XMM9: Register<"XMM9">;
def XMM10: Register<"XMM10">;
def XMM11: Register<"XMM11">;
def XMM12: Register<"XMM12">;
def XMM13: Register<"XMM13">;
def XMM14: Register<"XMM14">;
def XMM15: Register<"XMM15">;
def XMM8: Register<"XMM8">, DwarfRegNum<25>;
def XMM9: Register<"XMM9">, DwarfRegNum<26>;
def XMM10: Register<"XMM10">, DwarfRegNum<27>;
def XMM11: Register<"XMM11">, DwarfRegNum<28>;
def XMM12: Register<"XMM12">, DwarfRegNum<29>;
def XMM13: Register<"XMM13">, DwarfRegNum<30>;
def XMM14: Register<"XMM14">, DwarfRegNum<31>;
def XMM15: Register<"XMM15">, DwarfRegNum<32>;
// Floating point stack registers
def ST0 : Register<"ST(0)">;
def ST1 : Register<"ST(1)">;
def ST2 : Register<"ST(2)">;
def ST3 : Register<"ST(3)">;
def ST4 : Register<"ST(4)">;
def ST5 : Register<"ST(5)">;
def ST6 : Register<"ST(6)">;
def ST7 : Register<"ST(7)">;
def ST0 : Register<"ST(0)">, DwarfRegNum<33>;
def ST1 : Register<"ST(1)">, DwarfRegNum<34>;
def ST2 : Register<"ST(2)">, DwarfRegNum<35>;
def ST3 : Register<"ST(3)">, DwarfRegNum<36>;
def ST4 : Register<"ST(4)">, DwarfRegNum<37>;
def ST5 : Register<"ST(5)">, DwarfRegNum<38>;
def ST6 : Register<"ST(6)">, DwarfRegNum<39>;
def ST7 : Register<"ST(7)">, DwarfRegNum<40>;
// Status flags register
def EFLAGS : Register<"EFLAGS">;