dmd.backend.cod1

Compiler implementation of the D programming language.

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INF32 anonymousenum INF32: Extra information about each CLIB runtime library function.
SSFLnobp anonymousenum SSFLnobp: Determine index if we can do two LEA instructions as a multiply.

Functions

FuncParamRegs_create FuncParamRegs FuncParamRegs_create(tym_t tyf): tyf: type of the function
argtypes void argtypes(type* t, type* arg1type, type* arg2type): Finds replacement types for register passing of aggregates.
buildEA void buildEA(code* c, int base, int index, int scale, targ_size_t disp): Build an EA of the form dispbase[index*scale]. Input: c struct to fill in base base register (-1 if none) index index register (-1 if none) scale scale factor - 1,2,4,8 disp displacement
buildModregrm uint buildModregrm(int mod, int reg, int rm): Build REX, modregrm and sib bytes
callclib void callclib(CodeBuilder cdb, elem* e, uint clib, regm_t* pretregs, regm_t keepmask): Generate code sequence to call C runtime library support routine. clib = CLIB.xxxx keepmask = mask of registers not to destroy. Currently can handle only 1. Should use a temporary rather than push/pop for speed.
cdfunc void cdfunc(CodeBuilder cdb, elem* e, regm_t* pretregs): Generate code sequence for function call.
cdisscaledindex void cdisscaledindex(CodeBuilder cdb, elem* e, regm_t* pidxregs, regm_t keepmsk): Generate code for which isscaledindex(e) returned a non-zero result.
cdstrthis void cdstrthis(CodeBuilder cdb, elem* e, regm_t* pretregs)
fixresult void fixresult(CodeBuilder cdb, elem* e, regm_t retregs, regm_t* pretregs): Given the result of an expression is in retregs, generate necessary code to return result in *pretregs.
fltregs void fltregs(CodeBuilder cdb, code* pcs, tym_t tym): Given an opcode and EA in cs, generate code for each floating register in turn. Input: tym either TYdouble or TYfloat
genEEcode void genEEcode(): Generate code for eecontext
gensaverestore uint gensaverestore(regm_t regm, CodeBuilder cdbsave, CodeBuilder cdbrestore): Gen a save/restore sequence for mask of registers.
genstackclean void genstackclean(CodeBuilder cdb, uint numpara, regm_t keepmsk): Clean parameters off stack. Input: numpara amount to adjust stack pointer keepmsk mask of registers to not destroy
getaddrmode uint getaddrmode(regm_t idxregs): Get addressing mode.
getlvalue void getlvalue(CodeBuilder cdb, code* pcs, elem* e, regm_t keepmsk): Compute addressing mode. Generate & return sequence of code (if any). Return in cs the info on it. Input: pcs -> where to store data about addressing mode e -> the lvalue elem keepmsk mask of registers we must not destroy or use if (keepmsk & RMstore), this will be only a store operation into the lvalue if (keepmsk & RMload), this will be a read operation only
getlvalue_lsw void getlvalue_lsw(code* c)
getlvalue_msw void getlvalue_msw(code* c)
isscaledindex int isscaledindex(elem* e): Determine if e is a 32 bit scaled index addressing mode.
loaddata void loaddata(CodeBuilder cdb, elem* e, regm_t* pretregs): Generate code to load data into registers.
loadea void loadea(CodeBuilder cdb, elem* e, code* cs, uint op, uint reg, targ_size_t offset, regm_t keepmsk, regm_t desmsk): Routine to aid in setting things up for gen(). Look for common subexpression. Can handle indirection operators, but not if they're common subs. Input: e -> elem where we get some of the data from cs -> partially filled code to add op = opcode reg = reg field of (mod reg r/m) offset = data to be added to Voffset field keepmsk = mask of registers we must not destroy desmsk = mask of registers destroyed by executing the instruction
logexp void logexp(CodeBuilder cdb, elem* e, int jcond, uint fltarg, code* targ): Generate code for a logical expression. Input: e elem jcond bit 1 if true then goto jump address if e if false then goto jump address if !e 2 don't call save87() fltarg FLcode or FLblock, flavor of target if e evaluates to jcond targ either code or block pointer to destination
offsetinreg void offsetinreg(CodeBuilder cdb, elem* e, regm_t* pretregs): Get offset portion of e, and store it in an index register. Return mask of index register in *pretregs.
paramsize targ_size_t paramsize(elem* e, tym_t tyf): Determine size of argument e that will be pushed.
pushParams void pushParams(CodeBuilder cdb, elem* e, uint stackalign, tym_t tyf): Generate code to push argument e on the stack. stackpush is incremented by stackalign for each PUSH.
regParamInPreg bool regParamInPreg(Symbol* s): Determine if we should leave parameter s in the register it came in, or allocate a register it using the register allocator.
tstresult void tstresult(CodeBuilder cdb, regm_t regm, tym_t tym, uint saveflag): Given a result in registers, test it for true or false. Will fail if TYfptr and the reg is ES! If saveflag is true, preserve the contents of the registers.

Structs

ClibInfo struct ClibInfo: Undocumented in source but is binding to C++. You might be able to learn more by searching the web for its name.
Parameter struct Parameter: Helper function for converting OPparam's into array of Parameters.
Ssindex struct Ssindex: Undocumented in source but is binding to C++. You might be able to learn more by searching the web for its name.

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