+(* L3 compiler
+ * X86 instruction/operand internal representation and manipulation
+ * Author: Joshua Wise <jwise@andrew.cmu.edu>
+ * Author: Chris Lu <czl@andrew.cmu.edu>
+ *)
+
signature X86 =
sig
+ (* register type *)
datatype reg =
EAX | EBX | ECX | EDX | ESI | EDI | EBP | RSP | R8D | R9D | R10D | R11D | R12D | R13D | R14D | R15D
- datatype oper = REG of reg | TEMP of Temp.temp | CONST of Word32.word | REL of (reg * int)
+ (* operands to instructions *)
+ datatype basicop = REG of reg |
+ TEMP of Temp.temp |
+ CONST of Word32.word |
+ REL of ((basicop * Temp.size) * (basicop * Temp.size) * Word32.word) |
+ STACKARG of int
+ type oper = basicop * Temp.size
+ datatype cc = E | NE | GE | LE | L | G | B | BE | A | AE
+ (* instructions *)
datatype insn =
DIRECTIVE of string |
COMMENT of string |
- MOVL of oper * oper |
- SUBL of oper * oper |
+ LABEL of Label.label |
+ MOV of oper * oper |
+ MOVSC of oper * oper |
+ LEA of oper * oper |
+ SUB of oper * oper |
IMUL of oper * oper |
IMUL3 of oper * oper * Word32.word |
- ADDL of oper * oper |
- LEAL of oper * oper * oper |
- IDIVL of oper |
+ ADD of oper * oper |
+ IDIV of oper |
NEG of oper |
+ NOT of oper |
+ SAL of oper * oper |
+ SAR of oper * oper |
+ AND of oper * oper |
+ OR of oper * oper |
+ XOR of oper * oper |
+ CMP of oper * oper |
+ TEST of oper * oper |
+ SETcc of cc * oper |
+ CMOVcc of cc * oper * oper |
+ JMP of Label.label |
+ Jcc of cc * Label.label |
+ CALL of Symbol.symbol * int |
+ MOVZB of oper * oper |
CLTD |
+ LIVEIGN of insn |
RET
+
+ structure OperSet : ORD_SET
+ where type Key.ord_key = basicop;
+ structure LiveMap : ORD_MAP
+ where type Key.ord_key = int;
+ val resize : Temp.size -> oper -> oper
+ val regcmp : reg * reg -> order
+ val getop : oper -> basicop
+ val osize : oper -> Temp.size
val cmpoper : oper * oper -> order
+ val cmpbasic : basicop * basicop -> order
val opereq : oper * oper -> bool
- val regname : reg -> string
+ val basiceq : basicop * basicop -> bool
+ val regname : Temp.size -> reg -> string
val regtonum : reg -> int
val numtoreg : int -> reg
- val prettyprint_oper : oper -> string
- val prettyprint : insn -> string
+ val ccname : cc -> string
+ val opsused : insn list -> OperSet.set
+ val pp_oper : oper -> string
+ val print : insn -> string
end
structure x86 :> X86 =
struct
+
datatype reg =
EAX | EBX | ECX | EDX | ESI | EDI | EBP | RSP | R8D | R9D | R10D | R11D | R12D | R13D | R14D | R15D
- datatype oper = REG of reg | TEMP of Temp.temp | CONST of Word32.word | REL of (reg * int)
+ (* operands to instructions *)
+ datatype basicop = REG of reg |
+ TEMP of Temp.temp |
+ CONST of Word32.word |
+ REL of ((basicop * Temp.size) * (basicop * Temp.size) * Word32.word) |
+ STACKARG of int
+ datatype cc = E | NE | GE | LE | L | G | B | BE | A | AE
+ type oper = basicop * Temp.size
datatype insn =
DIRECTIVE of string |
COMMENT of string |
- MOVL of oper * oper |
- SUBL of oper * oper |
+ LABEL of Label.label |
+ MOV of oper * oper |
+ MOVSC of oper * oper |
+ LEA of oper * oper |
+ SUB of oper * oper |
IMUL of oper * oper |
IMUL3 of oper * oper * Word32.word |
- ADDL of oper * oper |
- LEAL of oper * oper * oper |
- IDIVL of oper |
+ ADD of oper * oper |
+ IDIV of oper |
NEG of oper |
+ NOT of oper |
+ SAL of oper * oper |
+ SAR of oper * oper |
+ AND of oper * oper |
+ OR of oper * oper |
+ XOR of oper * oper |
+ CMP of oper * oper |
+ TEST of oper * oper |
+ SETcc of cc * oper |
+ CMOVcc of cc * oper * oper |
+ JMP of Label.label |
+ Jcc of cc * Label.label |
+ CALL of Symbol.symbol * int |
+ MOVZB of oper * oper |
CLTD |
+ LIVEIGN of insn |
RET
- fun regname EAX = "eax"
- | regname EBX = "ebx"
- | regname ECX = "ecx"
- | regname EDX = "edx"
- | regname ESI = "esi"
- | regname EDI = "edi"
- | regname EBP = "ebp"
- | regname RSP = "rsp"
- | regname R8D = "r8d"
- | regname R9D = "r9d"
- | regname R10D = "r10d"
- | regname R11D = "r11d"
- | regname R12D = "r12d"
- | regname R13D = "r13d"
- | regname R14D = "r14d"
- | regname R15D = "r15d"
-
+ type func = Ast.ident * insn list
+
+ (* gives name of reg *)
+ val regnames =
+ [ (EAX, ("al", "ax", "eax", "rax")),
+ (EBX, ("bl", "bx", "ebx", "rbx")),
+ (ECX, ("cl", "cx", "ecx", "rcx")),
+ (EDX, ("dl", "dx", "edx", "rdx")),
+ (ESI, ("sil", "si", "esi", "rsi")),
+ (EDI, ("dil", "di", "edi", "rdi")),
+ (EBP, ("bpl", "bp", "ebp", "rbp")),
+ (RSP, ("spl", "sp", "esp", "rsp")),
+ (R8D, ("r8b", "r8w", "r8d", "r8")),
+ (R9D, ("r9b", "r9w", "r9d", "r9")),
+ (R10D, ("r10b", "r10w", "r10d", "r10")),
+ (R11D, ("r11b", "r11w", "r11d", "r11")),
+ (R12D, ("r12b", "r12w", "r12d", "r12")),
+ (R13D, ("r13b", "r13w", "r13d", "r13")),
+ (R14D, ("r14b", "r14w", "r14d", "r14")),
+ (R15D, ("r15b", "r15w", "r15d", "r15")) ];
+
+ fun regname sz reg =
+ let
+ val (n, (b, w, l, q)) = valOf (List.find (fn (r, _) => r = reg) regnames)
+ in
+ case sz
+ of Temp.Byte => b
+ | Temp.Word => w
+ | Temp.Long => l
+ | Temp.Quad => q
+ end
+
+ fun ccname E = "e"
+ | ccname NE = "ne"
+ | ccname GE = "ge"
+ | ccname LE = "le"
+ | ccname G = "g"
+ | ccname L = "l"
+ | ccname B = "b"
+ | ccname A = "a"
+ | ccname AE = "ae"
+ | ccname BE = "be"
+
+ (* gives number (color) associated with reg *)
fun regtonum EAX = 0
- | regtonum EBX = 1
- | regtonum ECX = 2
- | regtonum EDX = 3
- | regtonum ESI = 4
- | regtonum EDI = 5
- | regtonum R8D = 6
- | regtonum R9D = 7
- | regtonum R10D = 8
- | regtonum R11D = 9
- | regtonum R12D = 10
- | regtonum R13D = 11
- | regtonum R14D = 12
- | regtonum R15D = 13
- | regtonum EBP = 14 (* Dummy numbers -- not permitted for allocation, but there so that we can compare *)
+ | regtonum ESI = 1
+ | regtonum EDI = 2
+ | regtonum ECX = 3
+ | regtonum R8D = 4
+ | regtonum R9D = 5
+ | regtonum EDX = 6
+ | regtonum R10D = 7
+ | regtonum R11D = 8
+ | regtonum EBX = 9
+ | regtonum EBP = 10
+ | regtonum R12D = 11
+ | regtonum R13D = 12
+ | regtonum R14D = 13
+ | regtonum R15D = 14
| regtonum RSP = 15
-
+
+ (* gives reg associated with number (color) *)
fun numtoreg 0 = EAX
- | numtoreg 1 = EBX
- | numtoreg 2 = ECX
- | numtoreg 3 = EDX
- | numtoreg 4 = ESI
- | numtoreg 5 = EDI
- | numtoreg 6 = R8D
- | numtoreg 7 = R9D
- | numtoreg 8 = R10D
- | numtoreg 9 = R11D
- | numtoreg 10 = R12D
- | numtoreg 11 = R13D
- | numtoreg 12 = R14D
- | numtoreg 13 = R15D
- | numtoreg n = raise ErrorMsg.InternalError ("numtoreg: Unknown register "^(Int.toString n))
-
+ | numtoreg 1 = ESI
+ | numtoreg 2 = EDI
+ | numtoreg 3 = ECX
+ | numtoreg 4 = R8D
+ | numtoreg 5 = R9D
+ | numtoreg 6 = EDX
+ | numtoreg 7 = R10D
+ | numtoreg 8 = R11D
+ | numtoreg 9 = EBX
+ | numtoreg 10 = EBP
+ | numtoreg 11 = R12D
+ | numtoreg 12 = R13D
+ | numtoreg 13 = R14D
+ | numtoreg 14 = R15D
+ | numtoreg n = raise ErrorMsg.InternalError ("numtoreg: Invalid register "^(Int.toString n))
+
+ (* register compare *)
fun regcmp (r1, r2) = Int.compare (regtonum r1, regtonum r2)
+ fun osize (_,s) = s
+ fun resize ss (a,_) = (a,ss)
+ fun getop (a,_) = a
- fun cmpoper (REG(reg1), REG(reg2)) = regcmp (reg1, reg2)
- | cmpoper (TEMP(temp1), TEMP(temp2)) = Temp.compare (temp1,temp2)
- | cmpoper (CONST(const1), CONST(const2)) = Word32.compare (const1, const2)
- | cmpoper (REL (r1, i1), REL (r2, i2)) =
- let
- val regorder = regcmp (r1, r2)
- val intorder = Int.compare (i1, i2)
+ (* operand compare; arbitrary order imposed to make
+ * various things easier (e.g. liveness, for sorting)
+ *)
+ fun cmpbasic (REG reg1, REG reg2) = regcmp (reg1, reg2)
+ | cmpbasic (TEMP temp1, TEMP temp2) = Temp.compare (temp1,temp2)
+ | cmpbasic (CONST(const1), CONST(const2)) = Word32.compare (const1, const2)
+ | cmpbasic (REL (r1, i1, m1), REL (r2, i2, m2)) =
+ let
+ val orderm = Word32.compare (m1,m2)
+ val order1 = cmpbasic (getop r1, getop r2)
+ val order2 = cmpbasic (getop i1, getop i2)
+ val o1 = if(order1 = EQUAL) then order2 else order1
in
- if (regorder = EQUAL) then intorder
- else regorder
+ if (o1 = EQUAL) then orderm
+ else o1
end
- | cmpoper (CONST _, _) = LESS
- | cmpoper (REG _, _) = LESS
- | cmpoper (REL _, _) = LESS
- | cmpoper (_, _) = GREATER
-
- fun opereq (a, b) = cmpoper (a, b) = EQUAL
+ | cmpbasic (CONST _, _) = LESS
+ | cmpbasic (REG _, _) = LESS
+ | cmpbasic (REL _, _) = LESS
+ | cmpbasic (_, _) = GREATER
+
+ fun cmpoper ((o1,s1),(o2,s2)) = (case (cmpbasic (o1,o2)) of EQUAL => Temp.cmpsize (s1,s2) | a => a)
+
+ fun basiceq (REG a, REG b) = a = b
+ | basiceq (TEMP a, TEMP b) = Temp.eq (a, b)
+ | basiceq (CONST a, CONST b) = a = b
+ | basiceq (REL (a1, b1, m1), REL (a2, b2, m2)) = m1 = m2 andalso basiceq (getop a1, getop a2) andalso basiceq (getop b1, getop b2)
+ | basiceq (_, _) = false
+
+ fun opereq ((o1,s1),(o2,s2)) = basiceq (o1,o2) andalso s1 = s2
+
+ structure OperSet = ListSetFn (
+ struct
+ type ord_key = basicop
+ val compare = cmpbasic
+ end)
- fun moreDifferentToString (i) =
- if (i >= 0) then Int.toString i
- else "-" ^ (Int.toString (~i))
+ structure LiveMap = SplayMapFn(struct
+ type ord_key = int
+ val compare = Int.compare
+ end)
- fun prettyprint_oper (REG r) = "%" ^ (regname r)
- | prettyprint_oper (TEMP t) = Temp.name t
- | prettyprint_oper (CONST c) = "$0x" ^ (Word32.toString c)
- | prettyprint_oper (REL (r, i)) = (moreDifferentToString i) ^ "(%" ^ (regname r) ^ ")"
-
- fun prettyprint (DIRECTIVE(str)) = str ^ "\n"
- | prettyprint (COMMENT(str)) = "// " ^ str ^ "\n"
- | prettyprint (MOVL(src, dst)) = "\tMOVL\t" ^ (prettyprint_oper src) ^ ", " ^ (prettyprint_oper dst) ^ "\n"
- | prettyprint (SUBL(src, dst)) = "\tSUBL\t" ^ (prettyprint_oper src) ^ ", " ^ (prettyprint_oper dst) ^ "\n"
- | prettyprint (IMUL(src, dst)) = "\tIMUL\t" ^ (prettyprint_oper src) ^ ", " ^ (prettyprint_oper dst) ^ "\n"
- | prettyprint (IMUL3(dst, tmp, const)) = "\tIMUL\t" ^ (prettyprint_oper (CONST const)) ^ ", " ^ (prettyprint_oper tmp) ^ ", " ^ (prettyprint_oper dst) ^ "\n"
- | prettyprint (ADDL(src, dst)) = "\tADDL\t" ^ (prettyprint_oper src) ^ ", " ^ (prettyprint_oper dst) ^ "\n"
- | prettyprint (LEAL(src1, src2, dst)) = "\tLEAL\t(" ^ (prettyprint_oper src1) ^ "," ^ (prettyprint_oper src2) ^ ")," ^ (prettyprint_oper dst) ^ "\n"
- | prettyprint (IDIVL(src)) = "\tIDIVL\t" ^ (prettyprint_oper src) ^ "\n"
- | prettyprint (NEG (src)) = "\tNEG\t" ^ (prettyprint_oper src) ^ "\n"
- | prettyprint (CLTD) = "\tCLTD\n"
- | prettyprint (RET) = "\tRET\n"
-(* | prettyprint _ = raise ErrorMsg.InternalError ("prettyprint: unknown instruction")*)
+ fun opsused nil = OperSet.empty
+ | opsused ((DIRECTIVE _)::l) = opsused l
+ | opsused ((COMMENT _)::l) = opsused l
+ | opsused ((LABEL _)::l) = opsused l
+ | opsused ((MOV ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((MOVSC((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((LEA ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((SUB ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((IMUL ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((IMUL3 ((dst,_), (src,_), _))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((ADD ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((IDIV (src,_))::l) = OperSet.addList (opsused l, [src, REG EDX, REG EAX])
+ | opsused ((NEG (dst,_))::l) = OperSet.addList (opsused l, [dst])
+ | opsused ((NOT (dst,_))::l) = OperSet.addList (opsused l, [dst])
+ | opsused ((SAL ((dst,_), (shft,_)))::l) = OperSet.addList (opsused l, [dst, shft])
+ | opsused ((SAR ((dst,_), (shft,_)))::l) = OperSet.addList (opsused l, [dst, shft])
+ | opsused ((AND ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((OR ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((XOR ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((CMP ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((TEST ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((SETcc (c, (dst,_)))::l) = OperSet.addList (opsused l, [dst])
+ | opsused ((CMOVcc (c, (dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((JMP _)::l) = opsused l
+ | opsused ((Jcc _)::l) = opsused l
+ | opsused ((CALL _)::l) = opsused l
+ | opsused ((MOVZB ((dst,_), (src,_)))::l) = OperSet.addList (opsused l, [dst, src])
+ | opsused ((CLTD)::l) = opsused l
+ | opsused ((RET)::l) = opsused l
+ | opsused ((LIVEIGN i)::l) = opsused (i::l)
+
+
+ fun pp_oper (REG r, s) = "%" ^ (regname s r)
+ | pp_oper (TEMP t, _) = (Temp.name t) ^ (Temp.sfx (Temp.size t))
+ | pp_oper (CONST c, _) = "$" ^ Word32Signed.toString c
+ | pp_oper (REL ((CONST n, _), _, _), _) = Word32Signed.toString n
+ | pp_oper (REL (r, (CONST n, _), _), _) = (Word32Signed.toString n) ^ "(" ^ (pp_oper r) ^ ")"
+ | pp_oper (REL (r1, r2, m), _) = "(" ^ (pp_oper r1) ^ "," ^ (pp_oper r2) ^ "," ^
+ (Word32.toString m) ^ ")"
+ | pp_oper (STACKARG i, _) = "arg#"^Int.toString i
+
+ (* pretty prints the asm *)
+ fun print (DIRECTIVE(str)) = str ^ "\n"
+ | print (COMMENT(str)) = "// " ^ str ^ "\n"
+ | print (LABEL(l)) = Label.name l ^ ":\n"
+ | print (LEA(dst, src)) = "\tlea" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (MOV(dst, src)) = "\tmov" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (MOVSC((d,Temp.Long), (s,Temp.Quad))) = "\tmov" ^ (Temp.sfx Temp.Long) ^ "\t" ^ (pp_oper (s,Temp.Long)) ^ ", " ^ (pp_oper (d,Temp.Long)) ^ " // sex change\n"
+ | print (MOVSC((d,Temp.Quad), (s,Temp.Long))) = "\tmov" ^ (Temp.sfx Temp.Long) ^ "\t" ^ (pp_oper (s,Temp.Long)) ^ ", " ^ (pp_oper (d,Temp.Long)) ^ " // sex change\n"
+ | print (MOVSC(_,_)) = raise ErrorMsg.InternalError "invalid size change"
+ | print (SUB(dst, src)) = "\tsub" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (IMUL(dst, src)) = "\timul" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (IMUL3(dst, tmp, const)) = "\timul" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper (CONST const, Temp.Long)) ^ ", " ^ (pp_oper tmp) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (ADD(dst, src)) = "\tadd" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (IDIV(src)) = "\tidiv" ^ (Temp.sfx (osize src)) ^ "\t" ^ (pp_oper src) ^ "\n"
+ | print (NEG (dst)) = "\tneg" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper dst) ^ "\n"
+ | print (NOT (dst)) = "\tnot" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper dst) ^ "\n"
+ | print (SAL (dst, shft)) = "\tsal" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper shft) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (SAR (dst, shft)) = "\tsar" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper shft) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (AND (dst, src)) = "\tand" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (OR (dst, src)) = "\tor" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (XOR (dst, src)) = "\txor" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (CMP (dst, src)) = "\tcmp" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (TEST (dst, src)) = "\ttest" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (SETcc (c, dst)) = "\tset" ^ (ccname c) ^ "\t" ^ (pp_oper dst) ^ "\n"
+ | print (CMOVcc (c, dst, src)) = "\tcmov" ^ (ccname c) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (JMP (label)) = "\tjmp\t" ^ (Label.name label) ^ "\n"
+ | print (Jcc (c,label)) = "\tj" ^ (ccname c) ^ "\t" ^ (Label.name label) ^ "\n"
+ | print (CALL (l,n)) = "\tcall\t" ^ Symbol.name l ^ "\t # (" ^ Int.toString n ^ "args)\n"
+ | print (MOVZB (dst, src)) = "\tmovzb" ^ (Temp.sfx (osize dst)) ^ "\t" ^ (pp_oper src) ^ ", " ^ (pp_oper dst) ^ "\n"
+ | print (CLTD) = "\tcltd\n"
+ | print (RET) = "\tret\n"
+ | print (LIVEIGN i) = print i
end
git.joshuawise.com / snipe.git / blobdiff