encounter
/
MWCC
mirror of https://git.wuffs.org/MWCC
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
MWCC/compiler_and_linker/unsorted/CodeGen.c

2437 lines
76 KiB
C
Raw Blame History

#include "compiler/CodeGen.h"
#include "compiler/CCompiler.h"
#include "compiler/CDecl.h"
#include "compiler/CError.h"
#include "compiler/CExpr.h"
#include "compiler/CFunc.h"
#include "compiler/CInt64.h"
#include "compiler/CMachine.h"
#include "compiler/CMangler.h"
#include "compiler/COptimizer.h"
#include "compiler/CParser.h"
#include "compiler/CPrep.h"
#include "compiler/CPrepTokenizer.h"
#include "compiler/Coloring.h"
#include "compiler/CompilerTools.h"
#include "compiler/uDump.h"
#include "compiler/Exceptions.h"
#include "compiler/InlineAsmPPC.h"
#include "compiler/Intrinsics.h"
#include "compiler/InstrSelection.h"
#include "compiler/GlobalOptimizer.h"
#include "compiler/ObjGenMachO.h"
#include "compiler/Operands.h"
#include "compiler/PCode.h"
#include "compiler/PCodeAssembly.h"
#include "compiler/PCodeInfo.h"
#include "compiler/PCodeListing.h"
#include "compiler/PCodeUtilities.h"
#include "compiler/Peephole.h"
#include "compiler/PPCError.h"
#include "compiler/RegisterInfo.h"
#include "compiler/Scheduler.h"
#include "compiler/StackFrame.h"
#include "compiler/Switch.h"
#include "compiler/TOC.h"
#include "compiler/ValueNumbering.h"
#include "compiler/enode.h"
#include "compiler/objc.h"
#include "compiler/objects.h"
#include "compiler/scopes.h"
#include "compiler/tokens.h"
#include "compiler/types.h"
static Macro powcM;
static Macro __powcM;
static Macro ppc_cpu;
static Macro profM;
static Macro hostM;
static Macro bendM;
static Macro _ppc_M;
static Macro longI;
static Macro IEEED;
Macro vecM;
Macro altivecM;
static Macro macM2;
static Macro appleM;
static Macro optM;
static Macro alignM;
static Macro _machM;
static Macro archM;
static Macro dynM;
static Macro ppcM;
Object *gFunction;
static ObjectList *temps;
CLabel *returnlabel;
CLabel *cleanreturnlabel;
Boolean needs_cleanup;
Statement *current_statement;
int has_catch_blocks;
int disable_optimizer;
SInt32 current_linenumber;
Boolean has_altivec_arrays;
short high_reg;
short low_reg;
short high_offset;
short low_offset;
short low_reg2;
short high_reg2;
PCodeLabel *pic_base_pcodelabel;
Object *dyld_stub_binding_helper;
Object *rt_cvt_fp2unsigned;
Object *rt_profile_entry;
Object *rt_profile_exit;
Object *rt_div2i;
Object *rt_div2u;
Object *rt_mod2i;
Object *rt_mod2u;
Object *rt_shr2i;
Object *rt_shr2u;
Object *rt_shl2i;
Object *rt_cvt_ull_dbl;
Object *rt_cvt_sll_dbl;
Object *rt_cvt_ull_flt;
Object *rt_cvt_sll_flt;
Object *rt_cvt_dbl_usll;
static heaperror_t saveheaperror;
enum {
GPRLimit = 10,
FPRLimit = 13,
VRLimit = 13
};
// forward decls
static void CodeGen_heaperror(void);
VarInfo *CodeGen_GetNewVarInfo(void) {
VarInfo *vi;
vi = lalloc(sizeof(VarInfo));
memclrw(vi, sizeof(VarInfo));
vi->deftoken = *CPrep_CurStreamElement();
vi->varnumber = localcount++;
return vi;
}
Object *maketemporary(Type *type) {
ObjectList *list;
Object *obj;
for (list = temps; list; list = list->next) {
obj = list->object;
if (obj->u.var.uid == 0 && obj->type == type) {
obj->u.var.uid = 1;
return obj;
}
}
obj = lalloc(sizeof(Object));
memclrw(obj, sizeof(Object));
obj->otype = OT_OBJECT;
obj->access = ACCESSPUBLIC;
obj->datatype = DLOCAL;
obj->type = type;
obj->name = CParser_GetUniqueName();
obj->u.var.info = CodeGen_GetNewVarInfo();
obj->u.var.uid = 1;
list = lalloc(sizeof(ObjectList));
memclrw(list, sizeof(ObjectList));
list->next = temps;
list->object = obj;
temps = list;
return obj;
}
static void free_temporaries(void) {
ObjectList *list;
for (list = temps; list; list = list->next)
list->object->u.var.uid = 0;
}
static void allocate_temporaries(void) {
ObjectList *list;
for (list = temps; list; list = list->next)
assign_local_memory(list->object);
}
void process_arguments(ArgumentProcessor func, Boolean flag) {
short gpr = 3;
short fpr = 1;
short vr = 2;
Type *type;
ObjectList *list;
for (list = arguments; list; list = list->next) {
type = list->object->type;
if (IS_TYPE_FLOAT(type)) {
func(list->object, (fpr <= FPRLimit) ? fpr : 0);
fpr++;
if (type->size == 4)
gpr++;
else
gpr += 2;
} else if (IS_TYPE_VECTOR(type)) {
func(list->object, (vr <= VRLimit) ? vr : 0);
vr++;
if (flag) {
if ((vr - 1) == 2)
gpr = 9;
else if ((vr - 1) > 2)
gpr = 11;
}
} else {
func(list->object, (gpr <= GPRLimit) ? gpr : 0);
if (TYPE_FITS_IN_REGISTER(type)) {
if (type->size <= 4)
gpr += 1;
else
gpr += 2;
} else {
gpr += (type->size >> 2);
if (type->size & 3)
gpr++;
}
}
}
last_argument_register[RegClass_GPR] = gpr - 1;
last_argument_register[RegClass_FPR] = fpr - 1;
last_argument_register[RegClass_VR] = vr - 1;
if (flag)
move_varargs_to_memory();
}
static void retain_argument_register(Object *obj, short reg) {
VarInfo *vi = Registers_GetVarInfo(obj);
Type *type = obj->type;
if (reg && !vi->noregister && vi->used) {
if (TYPE_FITS_IN_REGISTER(type)) {
if (type->size <= 4) {
retain_register(obj, RegClass_GPR, reg);
} else if (reg < GPRLimit) {
if (copts.little_endian)
retain_GPR_pair(obj, reg, reg + 1);
else
retain_GPR_pair(obj, reg + 1, reg);
}
} else if (IS_TYPE_FLOAT(type)) {
retain_register(obj, RegClass_FPR, reg);
} else if (IS_TYPE_VECTOR(type)) {
retain_register(obj, RegClass_VR, reg);
}
}
}
static void allocate_local_vregs(void) {
VarInfo *vi;
ObjectList *list;
Object *obj;
if (copts.codegen_pic && uses_globals && assignable_registers[RegClass_GPR]) {
if (assignable_registers[RegClass_GPR]) {
vi = pic_base.u.var.info;
vi->reg = 0;
assign_register_by_type(&pic_base);
pic_base_reg = vi->reg;
CError_ASSERT(497, pic_base_reg);
} else {
CError_FATAL(500);
}
} else {
pic_base_reg = 0;
}
for (list = exceptionlist; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
if (vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && !vi->reg)
assign_register_by_type(obj);
}
}
set_last_exception_registers();
for (list = arguments; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
if (vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && !vi->reg)
assign_register_by_type(obj);
}
}
for (list = locals; list; list = list->next) {
obj = list->object;
if (!IsTempName(obj->name)) {
vi = Registers_GetVarInfo(obj);
if (vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && !vi->reg)
assign_register_by_type(obj);
}
}
}
open_fe_temp_registers();
for (list = locals; list; list = list->next) {
obj = list->object;
if (IsTempName(obj->name)) {
vi = Registers_GetVarInfo(obj);
if (vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && !vi->reg)
assign_register_by_type(obj);
}
}
}
for (list = toclist; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
if (!vi->reg && vi->used && vi->usage > 1)
assign_register_by_type(obj);
}
}
static void allocate_local_GPRs(void) {
ObjectList *list;
Object *obj;
Object *winning_obj;
SInt32 winning_usage;
VarInfo *vi;
Type *type;
if (copts.codegen_pic && uses_globals && assignable_registers[RegClass_GPR]) {
vi = pic_base.u.var.info;
vi->reg = 0;
assign_register_by_type(&pic_base);
pic_base_reg = vi->reg;
CError_ASSERT(605, pic_base_reg);
} else {
pic_base_reg = 0;
}
while (assignable_registers[RegClass_GPR]) {
winning_obj = NULL;
winning_usage = -1;
if (!(disable_optimizer & 2)) {
for (list = arguments; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
type = obj->type;
if (vi->flags & VarInfoFlag40)
vi->usage = 100000;
if (!vi->reg && vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && vi->usage >= winning_usage && vi->usage >= 2) {
if (TYPE_FITS_IN_REGISTER(type) && (!TYPE_IS_8BYTES(type) || assignable_registers[RegClass_GPR] >= 2)) {
winning_obj = obj;
winning_usage = vi->usage;
}
}
}
}
}
if (!(disable_optimizer & 2)) {
for (list = locals; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
type = obj->type;
if (vi->flags & VarInfoFlag40)
vi->usage = 100000;
if (!vi->reg && vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && vi->usage >= winning_usage && vi->usage >= 2) {
if (TYPE_FITS_IN_REGISTER(type) && (!TYPE_IS_8BYTES(type) || assignable_registers[RegClass_GPR] >= 2)) {
winning_obj = obj;
winning_usage = vi->usage;
}
}
}
}
}
for (list = toclist; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
if (vi->flags & VarInfoFlag40)
vi->usage = 100000;
if (!vi->reg && vi->used) {
if (vi->usage >= winning_usage && vi->usage >= 3) {
winning_obj = obj;
winning_usage = vi->usage;
}
}
}
if (!winning_obj)
break;
assign_register_by_type(winning_obj);
CError_ASSERT(698, Registers_GetVarInfo(winning_obj)->flags & VarInfoFlag2);
}
}
static void allocate_local_FPRs(void) {
ObjectList *list;
Object *obj;
Object *winning_obj;
SInt32 winning_usage;
VarInfo *vi;
Type *type;
while (assignable_registers[RegClass_FPR]) {
winning_obj = NULL;
winning_usage = -1;
if (!(disable_optimizer & 2)) {
for (list = arguments; list; list = list->next) {
obj = list->object;
type = obj->type;
vi = Registers_GetVarInfo(obj);
if (vi->flags & VarInfoFlag40)
vi->usage = 100000;
if (!vi->reg && vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && vi->usage >= winning_usage && vi->usage >= 2) {
if (IS_TYPE_FLOAT(type)) {
winning_obj = obj;
winning_usage = vi->usage;
}
}
}
}
}
if (!(disable_optimizer & 2)) {
for (list = locals; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
if (vi->flags & VarInfoFlag40)
vi->usage = 100000;
if (!vi->reg && vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && vi->usage >= winning_usage && vi->usage >= 2) {
if (IS_TYPE_FLOAT(obj->type)) {
winning_obj = obj;
winning_usage = vi->usage;
}
}
}
}
}
if (!winning_obj)
break;
assign_register_by_type(winning_obj);
CError_ASSERT(782, Registers_GetVarInfo(winning_obj)->flags & VarInfoFlag2);
}
}
static void allocate_local_VRs(void) {
ObjectList *list;
Object *obj;
Object *winning_obj;
SInt32 winning_usage;
VarInfo *vi;
while (assignable_registers[RegClass_VR]) {
winning_obj = NULL;
winning_usage = -1;
if (!(disable_optimizer & 2)) {
for (list = arguments; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
if (vi->flags & VarInfoFlag40)
vi->usage = 100000;
if (!vi->reg && vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && vi->usage >= winning_usage && vi->usage >= 2) {
if (IS_TYPE_VECTOR(obj->type)) {
winning_obj = obj;
winning_usage = vi->usage;
}
}
}
}
}
if (!(disable_optimizer & 2)) {
for (list = locals; list; list = list->next) {
obj = list->object;
vi = Registers_GetVarInfo(obj);
if (vi->flags & VarInfoFlag40)
vi->usage = 100000;
if (!vi->reg && vi->used && !vi->noregister) {
if (!OBJ_GET_TARGET_VOLATILE(obj) && vi->usage >= winning_usage && vi->usage >= 2) {
if (IS_TYPE_VECTOR(obj->type)) {
winning_obj = obj;
winning_usage = vi->usage;
}
}
}
}
}
if (!winning_obj)
break;
assign_register_by_type(winning_obj);
CError_ASSERT(846, Registers_GetVarInfo(winning_obj)->flags & VarInfoFlag2);
}
}
static void allocate_locals(void) {
has_altivec_arrays = 0;
if (!requires_frame && !optimizing)
process_arguments(retain_argument_register, 0);
if (optimizing) {
allocate_local_vregs();
} else {
allocate_local_GPRs();
allocate_local_FPRs();
allocate_local_VRs();
}
assign_locals_to_memory(locals);
}
void move_assigned_argument(Object *obj, short reg) {
VarInfo *vi;
Type *type;
SInt32 bytesLeft;
SInt32 offset;
vi = Registers_GetVarInfo(obj);
type = obj->type;
CError_ASSERT(901, obj->datatype == DLOCAL);
if (!vi->used)
return;
if (reg) {
if (vi->reg) {
if (TYPE_IS_8BYTES(type)) {
if (copts.little_endian) {
if (vi->reg != reg)
emitpcode(PC_MR, vi->reg, reg);
if (reg < GPRLimit) {
CError_FAIL(916, (vi->regHi == reg) || (vi->reg == (reg + 1)));
if (vi->regHi != (reg + 1))
emitpcode(PC_MR, vi->regHi, reg + 1);
} else {
load_store_register(PC_LWZ, vi->regHi, local_base_register(obj), obj, high_offset);
}
} else {
if (vi->regHi != reg)
emitpcode(PC_MR, vi->regHi, reg);
if (reg < GPRLimit) {
CError_FAIL(931, (vi->reg == reg) || (vi->regHi == (reg + 1)));
if (vi->reg != (reg + 1))
emitpcode(PC_MR, vi->reg, reg + 1);
} else {
load_store_register(PC_LWZ, vi->reg, local_base_register(obj), obj, low_offset);
}
}
} else if (vi->reg != reg) {
if (IS_TYPE_FLOAT(type)) {
emitpcode(PC_FMR, vi->reg, reg);
} else if (IS_TYPE_VECTOR(type)) {
emitpcode(PC_VMR, vi->reg, reg);
} else {
emitpcode(PC_MR, vi->reg, reg);
}
}
} else {
if (IS_TYPE_POINTER(type) || IS_TYPE_4BYTES_MEMBERPOINTER(type)) {
load_store_register(PC_STW, reg, local_base_register(obj), obj, 0);
} else if (IS_TYPE_INT(type) || IS_TYPE_ENUM(type)) {
switch (type->size) {
case 1:
load_store_register(PC_STB, reg, local_base_register(obj), obj, 0);
break;
case 2:
load_store_register(PC_STH, reg, local_base_register(obj), obj, 0);
break;
case 4:
load_store_register(PC_STW, reg, local_base_register(obj), obj, 0);
break;
case 8:
load_store_register(PC_STW, reg, local_base_register(obj), obj, 0);
if (reg < GPRLimit)
load_store_register(PC_STW, reg + 1, local_base_register(obj), obj, 4);
break;
default:
CError_FATAL(993);
}
} else if (IS_TYPE_FLOAT(type)) {
load_store_register((type->size == 4) ? PC_STFS : PC_STFD, reg, local_base_register(obj), obj, 0);
} else if (IS_TYPE_VECTOR(type)) {
load_store_register(PC_STVX, reg, local_base_register(obj), obj, 0);
} else {
bytesLeft = (11 - reg) * 4;
if (bytesLeft > obj->type->size)
bytesLeft = obj->type->size;
offset = 0;
while (bytesLeft > 0) {
load_store_register(PC_STW, reg, local_base_register(obj), obj, offset);
reg++;
offset += 4;
bytesLeft -= 4;
}
}
}
} else {
if (vi->reg) {
if (IS_TYPE_POINTER(type) || IS_TYPE_4BYTES_MEMBERPOINTER(type)) {
load_store_register(PC_LWZ, vi->reg, local_base_register(obj), obj, 0);
} else if (IS_TYPE_FLOAT(type)) {
load_store_register((type->size == 4) ? PC_LFS : PC_LFD, vi->reg, local_base_register(obj), obj, 0);
} else if (IS_TYPE_VECTOR(type)) {
load_store_register(PC_LVX, vi->reg, local_base_register(obj), obj, 0);
} else {
switch (type->size) {
case 1:
load_store_register(PC_LBZ, vi->reg, local_base_register(obj), obj, 0);
break;
case 2:
load_store_register(is_unsigned(type) ? PC_LHZ : PC_LHA, vi->reg, local_base_register(obj), obj, 0);
break;
case 4:
load_store_register(PC_LWZ, vi->reg, local_base_register(obj), obj, 0);
break;
case 8:
load_store_register(PC_LWZ, vi->regHi, local_base_register(obj), obj, high_offset);
load_store_register(PC_LWZ, vi->reg, local_base_register(obj), obj, low_offset);
break;
default:
CError_FATAL(1095);
}
}
} else if (!optimizing) {
local_base_register(obj);
}
}
}
static void load_TOC_pointers(void) {
VarInfo *vi;
Object *obj;
ObjectList *list;
PCode *pc;
Operand opnd;
if (uses_globals && pic_base_reg) {
pic_base_pcodelabel = makepclabel();
pc = makepcode(PC_BC, 20, 7, 3, pic_base_pcodelabel);
pcsetlinkbit(pc);
pcsetsideeffects(pc);
appendpcode(pclastblock, pc);
pcbranch(pclastblock, pic_base_pcodelabel);
makepcblock();
pclabel(pclastblock, pic_base_pcodelabel);
emitpcode(PC_MFLR, pic_base_reg);
}
memclrw(&opnd, sizeof(Operand));
for (list = toclist; list; list = list->next) {
obj = list->object;
if ((vi = Registers_GetVarInfo(obj)) && (vi->flags & VarInfoFlag2)) {
switch (obj->datatype) {
case DNONLAZYPTR:
symbol_operand(&opnd, obj);
opnd.optype = OpndType_IndirectSymbol;
if (opnd.optype)
Coerce_to_register(&opnd, TYPE(&void_ptr), vi->reg);
if (opnd.reg != vi->reg)
emitpcode(PC_MR, vi->reg, opnd.reg);
break;
default:
CError_FATAL(1206);
}
}
}
}
static int has_vararglist(Object *funcobj) {
FuncArg *arg;
arg = TYPE_FUNC(funcobj->type)->args;
while (arg && arg != &elipsis)
arg = arg->next;
return (arg == &elipsis);
}
void assign_labels(Statement *stmt) {
Statement *last;
last = NULL;
while (stmt) {
if (stmt->type == ST_LABEL && !stmt->label->pclabel) {
if (last && last->type == ST_LABEL)
stmt->label->pclabel = last->label->pclabel;
else
stmt->label->pclabel = makepclabel();
}
last = stmt;
stmt = stmt->next;
}
}
static Boolean islaststatement(Statement *stmt) {
for (stmt = stmt->next; stmt; stmt = stmt->next) {
if (stmt->type > ST_LABEL)
return 0;
}
return 1;
}
static void newstatement(SInt32 sourceoffset, SInt32 value, int flag) {
PCodeBlock *block = pclastblock;
pcloopweight = value;
if (!block->pcodeCount)
block->loopWeight = value;
if (block->pcodeCount > 100)
branch_label(makepclabel());
if (flag)
block->flags |= fPCBlockFlag4000;
}
static void expressionstatement(ENode *expr) {
Operand opnd;
memclrw(&opnd, sizeof(Operand));
cgdispatch[expr->type](expr, 0, 0, &opnd);
if (ENODE_IS(expr, EINDIRECT) && (opnd.flags & OpndFlags_Volatile)) {
if (TYPE_FITS_IN_REGISTER_2(expr->rtype)) {
if (opnd.optype != OpndType_GPR)
Coerce_to_register(&opnd, expr->rtype, 0);
} else if (IS_TYPE_FLOAT(expr->rtype)) {
if (opnd.optype != OpndType_FPR)
Coerce_to_fp_register(&opnd, expr->rtype, 0);
} else if (IS_TYPE_VECTOR(expr->rtype)) {
if (opnd.optype != OpndType_VR)
Coerce_to_v_register(&opnd, expr->rtype, 0);
}
}
}
static void labelstatement(CLabel *label) {
if (!label->pclabel)
label->pclabel = makepclabel();
if (!label->pclabel->resolved)
branch_label(label->pclabel);
free_temporaries();
}
static void gotostatement(CLabel *label) {
if (!label->pclabel)
label->pclabel = makepclabel();
branch_always(label->pclabel);
free_temporaries();
}
static void gotoexpression(ENode *expr) {
Operand opnd;
CodeLabelList *list;
memclrw(&opnd, sizeof(Operand));
cgdispatch[expr->type](expr, 0, 0, &opnd);
if (opnd.optype != OpndType_GPR)
Coerce_to_register(&opnd, TYPE(&void_ptr), 0);
CError_ASSERT(1397, opnd.optype == OpndType_GPR);
for (list = codelabellist; list; list = list->next)
pcbranch(pclastblock, list->label->pclabel);
emitpcode(PC_MTCTR, opnd.reg);
branch_indirect(NULL);
}
static void conditionalstatement(ENode *cond, CLabel *label, short truthy) {
Operand opnd;
memclrw(&opnd, sizeof(Operand));
cond = evaluate_and_skip_comma(cond);
if (!label->pclabel)
label->pclabel = makepclabel();
if (TYPE_IS_8BYTES(cond->data.diadic.right->rtype) || TYPE_IS_8BYTES(cond->data.diadic.left->rtype))
I8_gen_condition(cond, &opnd, 0);
else
gen_condition(cond, &opnd);
branch_conditional(opnd.reg, opnd.regOffset, truthy, label->pclabel);
free_temporaries();
}
static void returnstatement(ENode *expr, Boolean dont_branch) {
Operand opnd;
Type *type;
memclrw(&opnd, sizeof(Operand));
if (expr) {
type = expr->rtype;
if (TYPE_FITS_IN_REGISTER(type)) {
if (TYPE_IS_8BYTES(type)) {
cgdispatch[expr->type](expr, low_reg, high_reg, &opnd);
coerce_to_register_pair(&opnd, type, low_reg, high_reg);
} else {
cgdispatch[expr->type](expr, 3, 0, &opnd);
if (opnd.optype != OpndType_GPR)
Coerce_to_register(&opnd, type, 3);
if (opnd.reg != 3)
emitpcode(PC_MR, 3, opnd.reg);
}
} else if (IS_TYPE_FLOAT(type)) {
cgdispatch[expr->type](expr, 1, 0, &opnd);
if (opnd.optype != OpndType_FPR)
Coerce_to_fp_register(&opnd, type, 1);
if (opnd.reg != 1)
emitpcode(PC_FMR, 1, opnd.reg);
} else if (IS_TYPE_VECTOR(type)) {
cgdispatch[expr->type](expr, 2, 0, &opnd);
if (opnd.optype != OpndType_VR)
Coerce_to_v_register(&opnd, type, 2);
if (opnd.reg != 2)
emitpcode(PC_VMR, 2, opnd.reg);
} else {
cgdispatch[expr->type](expr, 0, 0, &opnd);
}
}
if (!dont_branch) {
if (!returnlabel->pclabel)
returnlabel->pclabel = makepclabel();
branch_always(returnlabel->pclabel);
free_temporaries();
}
}
static void capturestackpointer(Object *obj) {
branch_label(makepclabel());
CError_ASSERT(1568, obj->datatype == DLOCAL);
load_store_register(PC_STW, 1, local_base_register(obj), obj, 20);
branch_label(makepclabel());
}
static void resetstackpointer(Object *obj) {
PCode *pc;
CError_ASSERT(1595, obj->datatype == DLOCAL);
branch_label(makepclabel());
load_store_register(PC_LWZ, 0, 1, NULL, 0);
pc = makepcode(PC_LWZ, 1, local_base_register(obj), obj, 20);
pcsetsideeffects(pc);
appendpcode(pclastblock, pc);
load_store_register(PC_STW, 0, 1, NULL, 0);
branch_label(makepclabel());
}
static void callprofiler(char *name) {
UInt32 masks[RegClassMax] = {0, 0, 0, 0, 0};
load_store_register(PC_LWZ, 3, 1, NULL, 0);
load_store_register(PC_LWZ, 3, 3, NULL, 8);
masks[RegClass_GPR] |= (1 << 3);
branch_subroutine(rt_profile_entry, 1, masks);
}
static void exitprofiler(void) {
}
void CodeGen_Generator(Statement *statements, Object *func, UInt8 mysteryFlag, Boolean callOnModuleBind) {
Statement *stmt;
Boolean has_varargs;
PCodeBlock *tmp;
Object *obj;
SInt32 size;
CodeGen_InitialSanityCheck();
if (!saveheaperror) {
saveheaperror = getheaperror();
setheaperror(CodeGen_heaperror);
}
if (cparamblkptr->isPrecompiling == 1)
CError_Error(180);
if (!func) {
func = createstaticinitobject();
} else if (func && func->name) {
PrintProgressFunction(func->name->name);
}
gFunction = func;
has_varargs = has_vararglist(func);
init_endian();
init_stack_globals(func);
assign_arguments_to_memory(func, mysteryFlag, has_varargs);
needs_cleanup = 0;
disable_optimizer = 0;
has_catch_blocks = 0;
current_statement = NULL;
current_linenumber = 0;
precomputedoperands = NULL;
switchtables = NULL;
temps = NULL;
initializeexceptiontables();
returnlabel = cleanreturnlabel = newlabel();
if (copts.debuglisting)
DumpIR(statements, func);
statements = COpt_Optimizer(func, statements);
if (copts.debuglisting)
DumpIR(statements, func);
resetTOCvarinfo();
init_registers();
expandTOCreferences(&statements->next);
if (copts.debuglisting)
DumpIR(statements, func);
if (copts.profile) {
makes_call = 1;
requires_frame = 1;
}
initpcode();
pclabel(prologue = makepcblock(), makepclabel());
prologue->flags |= fPCBlockFlag1;
pclabel(tmp = makepcblock(), makepclabel());
pcbranch(prologue, tmp->labels);
init_frame_sizes(has_varargs);
allocate_locals();
process_arguments(move_assigned_argument, has_varargs);
if (copts.schedule_mode || copts.altivec_model)
branch_label(makepclabel());
load_TOC_pointers();
if (copts.profile)
callprofiler(CMangler_GetLinkName(func)->name);
assign_labels(statements->next);
open_temp_registers();
for (stmt = statements->next; stmt; stmt = stmt->next) {
current_statement = stmt;
current_linenumber = stmt->sourceoffset;
switch (stmt->type) {
case ST_NOP:
break;
case ST_EXPRESSION:
newstatement(stmt->sourceoffset, stmt->value, (stmt->flags & StmtFlag_10) != 0);
expressionstatement(stmt->expr);
break;
case ST_LABEL:
labelstatement(stmt->label);
break;
case ST_IFGOTO:
newstatement(stmt->sourceoffset, stmt->value, (stmt->flags & StmtFlag_10) != 0);
conditionalstatement(stmt->expr, stmt->label, 1);
break;
case ST_IFNGOTO:
newstatement(stmt->sourceoffset, stmt->value, (stmt->flags & StmtFlag_10) != 0);
conditionalstatement(stmt->expr, stmt->label, 0);
break;
case ST_GOTOEXPR:
newstatement(stmt->sourceoffset, stmt->value, (stmt->flags & StmtFlag_10) != 0);
gotoexpression(stmt->expr);
break;
case ST_GOTO:
newstatement(stmt->sourceoffset, stmt->value, (stmt->flags & StmtFlag_10) != 0);
gotostatement(stmt->label);
break;
case ST_RETURN:
newstatement(stmt->sourceoffset, stmt->value, (stmt->flags & StmtFlag_10) != 0);
returnstatement(stmt->expr, islaststatement(stmt));
break;
case ST_SWITCH:
newstatement(stmt->sourceoffset, stmt->value, (stmt->flags & StmtFlag_10) != 0);
switchstatement(stmt->expr, (SwitchInfo *) stmt->label);
break;
case ST_BEGINCATCH:
capturestackpointer(stmt->expr->data.objref);
break;
case ST_ENDCATCHDTOR:
CError_ASSERT(2056, stmt->expr->data.objref->datatype == DLOCAL);
obj = stmt->expr->data.objref;
add_immediate(3, local_base_register(obj), obj, 0);
{
UInt32 masks[RegClassMax] = {0, 0, 0, 0, 0};
masks[RegClass_GPR] |= 1 << 3;
branch_subroutine(Xecth_func, 1, masks);
}
case ST_ENDCATCH:
resetstackpointer(stmt->expr->data.objref);
break;
case ST_ASM:
if (stmt->expr) {
if (((InlineAsm *) stmt->expr)->flags & IAFlag1) {
CError_FATAL(2076);
} else {
branch_label(makepclabel());
InlineAsm_TranslateIRtoPCode(stmt);
}
}
break;
case ST_BEGINLOOP:
CError_FATAL(2086);
break;
case ST_ENDLOOP:
CError_FATAL(2090);
break;
default:
CError_FATAL(2094);
}
check_temp_registers();
}
close_temp_registers();
labelstatement(returnlabel);
current_statement = NULL;
epilogue = pclastblock;
pclastblock->flags |= fPCBlockFlag2;
pccomputepredecessors();
deleteunreachableblocks();
if (copts.report_heap_info > 0)
CodeGen_reportheapinfo(0, CMangler_GetLinkName(func)->name, "before optimization");
if (copts.optimizationlevel > 0 && !disable_optimizer)
globallyoptimizepcode(func);
else
pclistblocks(CMangler_GetLinkName(func)->name, "INITIAL CODE");
if (copts.schedule_mode == 2) {
if (copts.peephole)
peepholemergeblocks(func, 0);
if (copts.debuglisting)
pclistblocks_start_scheduler(CMangler_GetLinkName(func)->name, "BEFORE SCHEDULING");
scheduleinstructions(0);
if (copts.debuglisting)
pclistblocks_end_scheduler();
if (copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "AFTER INSTRUCTION SCHEDULING");
}
if (copts.peephole) {
if (copts.schedule_mode == 0 && copts.optimizationlevel > 1)
peepholemergeblocks(func, 0);
peepholeoptimizeforward(func);
if (copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "AFTER PEEPHOLE FORWARD");
}
allocate_temporaries();
colorinstructions(func);
if (copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "AFTER REGISTER COLORING");
if (copts.optimizationlevel > 1 && !disable_optimizer) {
removecommonsubexpressions(func, 1);
if (removedcommonsubexpressions && copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "AFTER VALUE NUMBERING (POST COLORING)");
}
compute_frame_sizes();
generate_prologue(prologue, has_varargs);
if (copts.profile)
exitprofiler();
generate_epilogue(epilogue, 1);
if (copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "AFTER GENERATING EPILOGUE, PROLOGUE");
if (copts.peephole) {
if (copts.schedule_mode) {
peepholemergeblocks(func, 1);
if (copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "AFTER MERGING EPILOGUE, PROLOGUE");
}
peepholeoptimizepcode(func);
if (copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "AFTER PEEPHOLE OPTIMIZATION");
}
if (copts.schedule_mode) {
if (copts.debuglisting)
pclistblocks_start_scheduler(CMangler_GetLinkName(func)->name, "BEFORE SCHEDULING");
scheduleinstructions(1);
if (copts.debuglisting)
pclistblocks_end_scheduler();
if (copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "FINAL CODE AFTER INSTRUCTION SCHEDULING");
} else {
if (copts.debuglisting)
pclistblocks(CMangler_GetLinkName(func)->name, "FINAL CODE");
}
size = assemblefunction(func, NULL);
dumpswitchtables(func);
dumpcodelabels(func);
if (callOnModuleBind)
ObjGen_DeclareInitFunction(func);
pic_base_pcodelabel = NULL;
pic_base_reg = 0;
if (copts.exceptions && requires_frame)
dumpexceptiontables(func, size);
if (copts.report_heap_info > 0)
CodeGen_reportheapinfo(0, CMangler_GetLinkName(func)->name, "finished");
if (saveheaperror)
setheaperror(saveheaperror);
}
enum {
reg3 = 3,
reg4 = 4
};
void CodeGen_GenVDispatchThunk(Object *thunkobj, Object *obj, SInt32 a, SInt32 b, SInt32 c) {
Boolean save_debug;
Boolean save_peephole;
Boolean save_traceback;
char reg;
save_debug = copts.isGeneratingDebugInfo;
save_peephole = copts.peephole;
save_traceback = copts.traceback;
CodeGen_InitialSanityCheck();
CError_ASSERT(2270, b == 0);
initpcode();
makepcblock();
if (a) {
reg = CMach_PassResultInHiddenArg(TYPE_FUNC(obj->type)->functype) ? reg4 : reg3;
if (c >= 0) {
if (!FITS_IN_SHORT(c)) {
emitpcode(PC_ADDIS, 11, 0, 0, HIGH_PART(c));
if (c)
emitpcode(PC_ADDI, 11, 11, 0, LOW_PART(c));
} else {
emitpcode(PC_ADDI, 11, 0, 0, c);
}
emitpcode(PC_LWZX, 11, reg, 11);
emitpcode(PC_ADD, reg, reg, 11);
}
if (!FITS_IN_SHORT(a)) {
emitpcode(PC_ADDIS, reg, reg, 0, HIGH_PART(a));
if (a)
emitpcode(PC_ADDI, reg, reg, 0, LOW_PART(a));
} else {
emitpcode(PC_ADDI, reg, reg, 0, a);
}
}
emitpcode(PC_B, 0, obj);
copts.isGeneratingDebugInfo = 0;
copts.peephole = 0;
copts.traceback = 0;
assemblefunction(thunkobj, NULL);
copts.isGeneratingDebugInfo = save_debug;
copts.peephole = save_peephole;
copts.traceback = save_traceback;
}
void CodeGen_SetupRuntimeObjects(void) {
setupaddressing();
dyld_stub_binding_helper = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_cvt_fp2unsigned = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_profile_entry = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_profile_exit = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_div2i = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_div2u = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_mod2i = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_mod2u = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_shr2i = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_shr2u = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_shl2i = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_cvt_ull_dbl = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_cvt_sll_dbl = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_cvt_ull_flt = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_cvt_sll_flt = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
rt_cvt_dbl_usll = CParser_NewRTFunc(&stvoid, NULL, 2, 0);
Intrinsics_SetupRuntimeObjects();
}
Boolean CodeGen_ReInitRuntimeObjects(Boolean is_precompiler) {
dyld_stub_binding_helper->name = GetHashNameNodeExport("dyld_stub_binding_helper");
dyld_stub_binding_helper->u.func.linkname = dyld_stub_binding_helper->name;
rt_cvt_fp2unsigned->name = GetHashNameNodeExport("__cvt_fp2unsigned");
rt_profile_entry->name = GetHashNameNodeExport("mcount");
rt_profile_entry->u.func.linkname = rt_profile_entry->name;
rt_profile_exit->name = GetHashNameNodeExport("profile_exit");
rt_div2i->name = GetHashNameNodeExport("__div2i");
rt_div2u->name = GetHashNameNodeExport("__div2u");
rt_mod2i->name = GetHashNameNodeExport("__mod2i");
rt_mod2u->name = GetHashNameNodeExport("__mod2u");
rt_shr2i->name = GetHashNameNodeExport("__shr2i");
rt_shr2u->name = GetHashNameNodeExport("__shr2u");
rt_shl2i->name = GetHashNameNodeExport("__shl2i");
rt_cvt_ull_dbl->name = GetHashNameNodeExport("__cvt_ull_dbl");
rt_cvt_sll_dbl->name = GetHashNameNodeExport("__cvt_sll_dbl");
rt_cvt_ull_flt->name = GetHashNameNodeExport("__cvt_ull_flt");
rt_cvt_sll_flt->name = GetHashNameNodeExport("__cvt_sll_flt");
rt_cvt_dbl_usll->name = GetHashNameNodeExport("__cvt_dbl_usll");
CMach_ReInitRuntimeObjects();
Intrinsics_ReInitRuntimeObjects(is_precompiler);
}
Boolean CodeGen_IsPublicRuntimeObject(Object *obj) {
return Intrinsics_IsPublicRuntimeObject(obj);
}
void CodeGen_SOMStub(Object *a, Object *b, Object *c, SInt32 offset) {
Boolean save_debug;
Boolean save_peephole;
Boolean save_traceback;
Object *tmp;
Operand opnd;
save_debug = copts.isGeneratingDebugInfo;
save_peephole = copts.peephole;
save_traceback = copts.traceback;
CodeGen_InitialSanityCheck();
memclrw(&opnd, sizeof(Operand));
CError_ASSERT(2528, offset <= 0x7FFF);
initpcode();
makepcblock();
tmp = createIndirect(c, 1, 1);
if (tmp) {
opnd.optype = OpndType_Symbol;
opnd.object = tmp;
indirect(&opnd, NULL);
} else {
opnd.optype = OpndType_Symbol;
opnd.object = c;
}
if (opnd.optype != OpndType_GPR)
Coerce_to_register(&opnd, TYPE(&void_ptr), 12);
if (opnd.optype != OpndType_GPR) {
CError_FATAL(2562);
} else if (opnd.reg != 12) {
emitpcode(PC_MR, 12, opnd.reg);
}
load_store_register(PC_LWZ, 12, 12, NULL, (short) offset);
emitpcode(PC_B, 0, b);
copts.isGeneratingDebugInfo = 0;
copts.peephole = 0;
copts.traceback = 0;
assemblefunction(a, NULL);
copts.isGeneratingDebugInfo = save_debug;
copts.peephole = save_peephole;
copts.traceback = save_traceback;
}
void CodeGen_ParseDeclSpec(HashNameNode *identifier, DeclInfo *declinfo) {
if (!strcmp(identifier->name, "private_extern")) {
declinfo->storageclass = TK_EXTERN;
declinfo->exportflags = EXPORT_FLAGS_INTERNAL;
} else {
CError_Error(176);
}
}
static void CodeGen_EOLCheck(void) {
short t;
if (plex() != TK_NEG7) {
CPrep_Error(113);
do {
t = plex();
} while (t != TK_NEG7 && t != 0);
}
}
static void schedule_for(int what) {
CPrep_PushOption(OPT_OFFSET(schedule_cpu), what);
if (copts.schedule_mode == 0)
CPrep_PushOption(OPT_OFFSET(schedule_mode), 2);
}
static void pragma_scheduling(void) {
Boolean *flag;
int cpu;
tk = plex();
if (tk == TK_IDENTIFIER) {
flag = &copts.altivec_model;
if (!strcmp(tkidentifier->name, "vger")) {
schedule_for(10);
return;
} else if (!strcmp(tkidentifier->name, "altivec")) {
schedule_for(7);
return;
} else if (!strcmp(tkidentifier->name, "reset")) {
CPrep_PopOption(OPT_OFFSET(schedule_cpu));
CPrep_PopOption(OPT_OFFSET(schedule_mode));
return;
} else if (!strcmp(tkidentifier->name, "off")) {
CPrep_PushOption(OPT_OFFSET(schedule_mode), 0);
return;
} else if (!strcmp(tkidentifier->name, "once")) {
CPrep_PushOption(OPT_OFFSET(schedule_mode), 1);
return;
} else if (!strcmp(tkidentifier->name, "twice")) {
CPrep_PushOption(OPT_OFFSET(schedule_mode), 2);
return;
} else if (!strcmp(tkidentifier->name, "on")) {
CPrep_PushOption(OPT_OFFSET(schedule_mode), 2);
return;
} else if (!*flag) {
if (!strcmp(tkidentifier->name, "603e")) {
schedule_for(5);
return;
} else if (!strcmp(tkidentifier->name, "604e")) {
schedule_for(6);
return;
} else if (!strcmp(tkidentifier->name, "PPC603e")) {
schedule_for(5);
return;
} else if (!strcmp(tkidentifier->name, "PPC604e")) {
schedule_for(6);
return;
}
} else {
PPCError_Error(115);
return;
}
CPrep_Error(186);
return;
}
if (tk == TK_INTCONST) {
switch (CInt64_GetULong(&tkintconst)) {
case 601:
cpu = 1;
break;
case 603:
cpu = 2;
break;
case 604:
cpu = 3;
break;
case 750:
cpu = 4;
break;
case 7400:
cpu = 7;
break;
case 7450:
cpu = 10;
break;
case 8240:
case 8260:
cpu = 5;
break;
case 801:
case 821:
case 823:
case 850:
case 860:
cpu = 9;
break;
default:
CPrep_Error(186);
return;
}
schedule_for(cpu);
return;
}
if (copts.warn_illpragma)
CPrep_Warning(186);
}
static SInt32 CodeGen_ParseLongIntegerORonORoff(void) {
SInt32 result;
short t;
result = 0;
t = plex();
if (t == TK_INTCONST) {
if (!tkintconst.hi)
result = CInt64_GetULong(&tkintconst);
else
CPrep_Error(154);
CodeGen_EOLCheck();
} else if (t == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "on")) {
CodeGen_EOLCheck();
return 1;
}
if (!strcmp(tkidentifier->name, "off")) {
CodeGen_EOLCheck();
return 0;
}
if (copts.warn_illpragma)
CPrep_Warning(186);
return 0;
} else {
if (copts.warn_illpragma)
CPrep_Warning(186);
}
return result;
}
void CodeGen_ParsePragma(HashNameNode *name) {
short t;
SInt32 value;
char *str;
NameSpace *nspace;
NameSpaceObjectList *list;
if (!strcmp(name->name, "debuglisting")) {
copts.debuglisting = CodeGen_ParseLongIntegerORonORoff();
return;
}
if (!strcmp(name->name, "report_heap_info")) {
t = plex();
if (t == TK_INTCONST) {
copts.report_heap_info = CInt64_GetULong(&tkintconst);
if (copts.report_heap_info < 0) {
copts.report_heap_info = 0;
CError_Error(186);
}
} else if (t == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.report_heap_info = 0;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.report_heap_info = 1;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "scheduling")) {
pragma_scheduling();
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "ppc_unroll_speculative")) {
if (plex() == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.ppc_unroll_speculative = 0;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.ppc_unroll_speculative = 1;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "ppc_unroll_instructions_limit")) {
t = plex();
if (t == TK_INTCONST) {
copts.ppc_unroll_instructions_limit = CInt64_GetULong(&tkintconst);
if (copts.ppc_unroll_instructions_limit < 0) {
copts.ppc_unroll_instructions_limit = 0;
CError_Error(186);
}
} else if (t == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.ppc_unroll_instructions_limit = 0;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.ppc_unroll_instructions_limit = 70;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "gen_fsel")) {
t = plex();
if (t == TK_INTCONST) {
value = CInt64_GetULong(&tkintconst);
if (value < 0) {
copts.gen_fsel = 0;
CError_Error(186);
} else if (value > 255) {
copts.gen_fsel = 255;
CError_Error(186);
} else {
copts.gen_fsel = value;
}
} else if (t == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.gen_fsel = 0;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.gen_fsel = 10;
} else if (!strcmp(tkidentifier->name, "always")) {
copts.gen_fsel = 255;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "ppc_unroll_factor_limit")) {
t = plex();
if (t == TK_INTCONST) {
copts.ppc_unroll_factor_limit = CInt64_GetULong(&tkintconst);
if (copts.ppc_unroll_factor_limit < 0) {
copts.ppc_unroll_factor_limit = 0;
CError_Error(186);
}
} else if (t == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.ppc_unroll_factor_limit = 0;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.ppc_unroll_factor_limit = 10;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "altivec_model")) {
if (plex() == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.altivec_model = 0;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.altivec_model = 1;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "altivec_vrsave")) {
if (plex() == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
CPrep_PushOption(OPT_OFFSET(altivec_vrsave), 0);
} else if (!strcmp(tkidentifier->name, "on")) {
CPrep_PushOption(OPT_OFFSET(altivec_vrsave), 1);
} else if (!strcmp(tkidentifier->name, "allon")) {
CPrep_PushOption(OPT_OFFSET(altivec_vrsave), 2);
} else if (!strcmp(tkidentifier->name, "reset")) {
CPrep_PopOption(OPT_OFFSET(altivec_vrsave));
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "function_align")) {
t = plex();
if (t == TK_INTCONST) {
value = CInt64_GetULong(&tkintconst);
switch (value) {
case 4:
case 8:
case 16:
case 32:
case 64:
case 128:
CPrep_PushOption(OPT_OFFSET(code_alignment), value);
break;
default:
PPCError_Warning(161);
CodeGen_EOLCheck();
return;
}
} else if (t == TK_IDENTIFIER && !strcmp(tkidentifier->name, "reset")) {
CPrep_PopOption(OPT_OFFSET(code_alignment));
} else {
PPCError_Warning(161);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "processor")) {
if (cscope_currentfunc) {
PPCError_Warning(156, "pragma processor");
return;
}
t = plex();
if (t == TK_INTCONST) {
switch (CInt64_GetULong(&tkintconst)) {
case 401:
copts.cpu = 0;
break;
case 403:
copts.cpu = 1;
break;
case 505:
copts.cpu = 2;
break;
case 509:
copts.cpu = 3;
break;
case 555:
copts.cpu = 4;
break;
case 556:
copts.cpu = 25;
break;
case 565:
copts.cpu = 26;
break;
case 601:
copts.cpu = 5;
break;
case 602:
copts.cpu = 6;
break;
case 8240:
copts.cpu = 18;
break;
case 8260:
copts.cpu = 19;
break;
case 603:
copts.cpu = 7;
break;
case 604:
copts.cpu = 9;
break;
case 740:
copts.cpu = 11;
break;
case 750:
copts.cpu = 12;
break;
case 801:
copts.cpu = 13;
break;
case 821:
copts.cpu = 14;
break;
case 823:
copts.cpu = 15;
break;
case 850:
copts.cpu = 16;
break;
case 860:
copts.cpu = 17;
break;
case 7400:
copts.cpu = 21;
break;
default:
PPCError_Warning(208);
CodeGen_EOLCheck();
return;
}
} else if (t == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "generic"))
copts.cpu = 20;
else if (!strcmp(tkidentifier->name, "603e"))
copts.cpu = 8;
else if (!strcmp(tkidentifier->name, "604e"))
copts.cpu = 10;
else if (!strcmp(tkidentifier->name, "PPC603e"))
copts.cpu = 8;
else if (!strcmp(tkidentifier->name, "PPC604e"))
copts.cpu = 10;
else
PPCError_Warning(208);
} else {
PPCError_Warning(208);
}
if ((str = CMach_GetCPU()))
CPrep_InsertSpecialMacro(&ppc_cpu, str);
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "min_struct_alignment")) {
t = plex();
if (t == TK_INTCONST) {
value = CInt64_GetULong(&tkintconst);
switch (value) {
case 4:
case 8:
case 16:
case 32:
case 64:
case 128:
CPrep_PushOption(OPT_OFFSET(some_alignment), value);
break;
default:
PPCError_Warning(191);
CodeGen_EOLCheck();
return;
}
} else if (t == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "reset"))
CPrep_PopOption(OPT_OFFSET(some_alignment));
else if (!strcmp(tkidentifier->name, "on"))
CPrep_PushOption(OPT_OFFSET(some_alignment), 4);
else if (!strcmp(tkidentifier->name, "off"))
CPrep_PushOption(OPT_OFFSET(some_alignment), 1);
} else {
PPCError_Warning(161);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "tvectors")) {
if (plex() == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
no_descriptors = 1;
} else if (!strcmp(tkidentifier->name, "on")) {
no_descriptors = 0;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "dynamic")) {
if (plex() == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.codegen_dynamic = 0;
copts.codegen_pic = 0;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.codegen_dynamic = 1;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "pic")) {
if (plex() == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.codegen_pic = 0;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.codegen_pic = 1;
if (!copts.codegen_dynamic) {
PPCError_Error(189);
copts.codegen_pic = 0;
}
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "implicit_templates")) {
if (plex() == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.no_implicit_templates = 1;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.no_implicit_templates = 0;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "common")) {
if (plex() == TK_IDENTIFIER) {
if (!strcmp(tkidentifier->name, "off")) {
copts.no_common = 1;
} else if (!strcmp(tkidentifier->name, "on")) {
copts.no_common = 0;
} else {
CError_Error(186);
return;
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (!strcmp(name->name, "CALL_ON_MODULE_BIND")) {
if (plex() == TK_IDENTIFIER) {
for (nspace = cscope_current; nspace; nspace = nspace->parent) {
list = CScope_GetLocalObject(nspace, tkidentifier);
if (list && list->object->otype == OT_OBJECT && OBJECT(list->object)->datatype == DFUNC) {
ObjGen_DeclareInitFunction(OBJECT(list->object));
break;
}
}
} else {
CError_Error(186);
}
CodeGen_EOLCheck();
return;
}
if (copts.warn_illpragma)
CPrep_Warning(186);
if (plex() != TK_NEG7) {
do {
t = plex();
} while (t != TK_NEG7 && t != 0);
}
}
void CodeGen_UpdateObject(Object *object) {
if (object->datatype == DDATA && object->section == SECT_DEFAULT && object == rt_ptmf_null)
object->sclass = TK_EXTERN;
}
void CodeGen_UpdateBackEndOptions(void) {
copts.global_optimizer = 1;
}
SInt32 CodeGen_objc_method_self_offset(ObjCMethod *meth) {
SInt32 size;
if (!meth->return_type) {
size = 4;
} else if (
IS_TYPE_ARRAY(meth->return_type) ||
IS_TYPE_NONVECTOR_STRUCT(meth->return_type) ||
IS_TYPE_CLASS(meth->return_type) ||
IS_TYPE_12BYTES_MEMBERPOINTER(meth->return_type)
)
{
size = 8;
} else {
size = meth->return_type->size;
}
if (size == 0)
size = 1;
return (size + 3) & ~3;
}
SInt32 CodeGen_objc_method_sel_offset(ObjCMethod *meth) {
return (CodeGen_objc_method_self_offset(meth) + 7) & ~3;
}
SInt32 CodeGen_objc_method_arg_offset(ObjCMethod *meth, ObjCMethodArg *arg) {
SInt32 pos;
ObjCMethodArg *scan;
pos = CodeGen_objc_method_sel_offset(meth) + 4;
for (scan = meth->selector_args; scan; scan = scan->next) {
if (scan == arg)
return pos;
if (scan->type == NULL)
pos += 4;
else
pos += scan->type->size;
pos = (pos + 3) & ~3;
}
return 0;
}
SInt32 CodeGen_objc_method_args_size(ObjCMethod *meth) {
SInt32 size;
ObjCMethodArg *scan;
size = CodeGen_objc_method_self_offset(meth);
for (scan = meth->selector_args; scan; scan = scan->next) {
if (scan->next == NULL && scan->type == NULL)
return size;
size = (size + 3) & ~3;
if (scan->type == NULL)
size += 4;
else
size += scan->type->size;
}
return size;
}
ENode *CodeGen_HandleIntrinsicCall(Object *func, ENodeList *arg_exprs) {
return Intrinsics_HandleIntrinsicCall(func, arg_exprs);
}
ENode *CodeGen_HandleTypeCast(ENode *expr, Type *type, UInt32 qual) {
short flags;
if (copts.altivec_model) {
flags = qual & ENODE_FLAG_QUALS;
if (IS_TYPE_STRUCT(type) && IS_TYPE_STRUCT(expr->rtype) && expr->flags == flags) {
switch (TYPE_STRUCT(type)->stype) {
case STRUCT_TYPE_4:
case STRUCT_TYPE_5:
case STRUCT_TYPE_6:
case STRUCT_TYPE_7:
case STRUCT_TYPE_8:
case STRUCT_TYPE_9:
case STRUCT_TYPE_A:
case STRUCT_TYPE_B:
case STRUCT_TYPE_C:
case STRUCT_TYPE_D:
case STRUCT_TYPE_E:
expr = makemonadicnode(expr, ETYPCON);
expr->rtype = type;
expr->flags = flags;
return expr;
}
}
}
return NULL;
}
short CodeGen_AssignCheck(const ENode *expr, const Type *type, Boolean flag1, Boolean flag2) {
short result;
const Type *exprtype = expr->rtype;
if (
copts.altivec_model &&
IS_TYPE_VECTOR(type) &&
IS_TYPE_VECTOR(exprtype) &&
TYPE_STRUCT(type)->stype == TYPE_STRUCT(exprtype)->stype
)
result = CheckResult3;
else
result = CheckResult0;
return result;
}
Boolean CodeGen_CollapseVectorExpression(ENode *expr, MWVector128 *vec, Type *type) {
// this function is a mess and needs lots of fixing
Boolean result;
//int count;
int i;
ENode *escan;
result = 0;
for (i = 0; i < 4; i++)
vec->ul[i] = 0;
if (ENODE_IS(expr, ECOMMA)) {
i = 0;
escan = expr;
while (ENODE_IS(escan, ECOMMA)) {
i++;
escan = escan->data.diadic.left;
}
switch (TYPE_STRUCT(type)->stype) {
case STRUCT_TYPE_4:
case STRUCT_TYPE_5:
case STRUCT_TYPE_6:
if (i < 15) {
PPCError_Error(110, type, 0);
} else if (i > 15) {
PPCError_Error(111, type, 0);
} else {
escan = expr;
i = 15;
while (ENODE_IS(escan, ECOMMA)) {
CInt64 v;
expr = escan->data.diadic.right;
v = expr->data.intval;
if (!ENODE_IS(expr, EINTCONST)) {
PPCError_Error(112);
break;
}
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_4) {
if (!CInt64_IsInURange(v, 1))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 1))
PPCError_Warning(113, type, 0);
}
}
vec->uc[i--] = (UInt8) v.lo;
escan = escan->data.diadic.left;
}
if (ENODE_IS(escan, EINTCONST)) {
CInt64 v = escan->data.intval;
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_4) {
if (!CInt64_IsInURange(v, 1))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 1))
PPCError_Warning(113, type, 0);
}
}
vec->uc[0] = (UInt8) v.lo;
} else {
PPCError_Error(112);
break;
}
result = 1;
}
break;
case STRUCT_TYPE_7:
case STRUCT_TYPE_8:
case STRUCT_TYPE_9:
case STRUCT_TYPE_E:
if (i < 7) {
PPCError_Error(110, type, 0);
} else if (i > 7) {
PPCError_Error(111, type, 0);
} else {
escan = expr;
i = 7;
while (ENODE_IS(escan, ECOMMA)) {
ENode *e = escan->data.diadic.right;
CInt64 v = e->data.intval;
if (!ENODE_IS(e, EINTCONST)) {
PPCError_Error(112);
break;
}
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_7 || TYPE_STRUCT(type)->stype == STRUCT_TYPE_E) {
if (!CInt64_IsInURange(v, 2))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 2))
PPCError_Warning(113, type, 0);
}
}
vec->us[i--] = (UInt16) e->data.intval.lo;
escan = escan->data.diadic.left;
}
if (ENODE_IS(escan, EINTCONST)) {
CInt64 v = escan->data.intval;
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_7 || TYPE_STRUCT(type)->stype == STRUCT_TYPE_E) {
if (!CInt64_IsInURange(v, 2))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 2))
PPCError_Warning(113, type, 0);
}
}
vec->us[0] = (UInt16) v.lo;
} else {
PPCError_Error(112);
break;
}
result = 1;
}
break;
case STRUCT_TYPE_A:
case STRUCT_TYPE_B:
case STRUCT_TYPE_C:
if (i < 3) {
PPCError_Error(110, type, 0);
} else if (i > 3) {
PPCError_Error(111, type, 0);
} else {
escan = expr;
i = 3;
while (ENODE_IS(escan, ECOMMA)) {
CInt64 v;
expr = escan->data.diadic.right;
v = expr->data.intval;
if (!ENODE_IS(expr, EINTCONST)) {
PPCError_Error(112);
break;
}
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_A) {
if (!CInt64_IsInURange(v, 4))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 4))
PPCError_Warning(113, type, 0);
}
}
vec->ul[i--] = expr->data.intval.lo;
escan = escan->data.diadic.left;
}
if (ENODE_IS(escan, EINTCONST)) {
CInt64 v = escan->data.intval;
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_A) {
if (!CInt64_IsInURange(v, 4))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 4))
PPCError_Warning(113, type, 0);
}
}
vec->ul[0] = v.lo;
} else {
PPCError_Error(112);
break;
}
result = 1;
}
break;
case STRUCT_TYPE_D:
if (i < 3) {
PPCError_Error(110, type, 0);
} else if (i > 3) {
PPCError_Error(111, type, 0);
} else {
Float fv;
escan = expr;
i = 3;
while (ENODE_IS(escan, ECOMMA)) {
expr = escan->data.diadic.right;
if (ENODE_IS(expr, EFLOATCONST)) {
fv = expr->data.floatval;
} else if (ENODE_IS(escan->data.diadic.right, EINTCONST)) {
fv = CMach_CalcFloatConvertFromInt(expr->rtype,
expr->data.intval);
} else {
PPCError_Error(112);
break;
}
CMach_InitFloatMem(TYPE(&stfloat), fv, &vec->f[i]);
i--;
escan = escan->data.diadic.left;
}
if (ENODE_IS(escan, EFLOATCONST)) {
fv = escan->data.floatval;
} else if (ENODE_IS(escan, EINTCONST)) {
fv = CMach_CalcFloatConvertFromInt(escan->rtype, escan->data.intval);
} else {
PPCError_Error(112);
break;
}
CMach_InitFloatMem(TYPE(&stfloat), fv, &vec->f[0]);
result = 1;
}
break;
}
} else if (ENODE_IS(expr, EINTCONST)) {
int i = 0;
switch (TYPE_STRUCT(type)->stype) {
case STRUCT_TYPE_4:
case STRUCT_TYPE_5:
case STRUCT_TYPE_6:
{
CInt64 v = expr->data.intval;
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_4) {
if (!CInt64_IsInURange(v, 1))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 1))
PPCError_Warning(113, type, 0);
}
}
while (i < 16)
vec->uc[i++] = (UInt8) v.lo;
result = 1;
break;
}
case STRUCT_TYPE_7:
case STRUCT_TYPE_8:
case STRUCT_TYPE_9:
case STRUCT_TYPE_E:
{
CInt64 v = expr->data.intval;
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_7 || TYPE_STRUCT(type)->stype == STRUCT_TYPE_E) {
if (!CInt64_IsInURange(v, 2))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 2))
PPCError_Warning(113, type, 0);
}
}
while (i < 8)
vec->us[i++] = (UInt16) v.lo;
result = 1;
break;
}
case STRUCT_TYPE_A:
case STRUCT_TYPE_B:
case STRUCT_TYPE_C:
{
CInt64 v = expr->data.intval;
if (copts.pedantic) {
if (TYPE_STRUCT(type)->stype == STRUCT_TYPE_A) {
if (!CInt64_IsInURange(v, 4))
PPCError_Warning(113, type, 0);
} else {
if (!CInt64_IsInRange(v, 4))
PPCError_Warning(113, type, 0);
}
}
while (i < 4)
vec->ul[i++] = v.lo;
result = 1;
break;
}
case STRUCT_TYPE_D:
{
Float fv;
if (!CInt64_IsInRange(expr->data.intval, 4)) {
PPCError_Error(112);
break;
}
fv = CMach_CalcFloatConvertFromInt(expr->rtype, expr->data.intval);
for (; i < 4; i++)
CMach_InitFloatMem(TYPE(&stfloat), fv, &vec->f[i]);
result = 1;
break;
}
default:
PPCError_Error(112);
}
} else if (ENODE_IS(expr, EFLOATCONST)) {
switch (TYPE_STRUCT(type)->stype) {
default:
PPCError_Error(112);
break;
case STRUCT_TYPE_D:
{
Float fv;
i = 0;
fv = expr->data.floatval;
CMach_InitFloatMem(TYPE(&stfloat), fv, &vec->f[0]);
while (i < 4)
CMach_InitFloatMem(TYPE(&stfloat), fv, &vec->f[i++]);
result = 1;
break;
}
}
} else if (ENODE_IS2(expr, EINDIRECT, EFUNCCALL)) {
if (!IS_TYPE_STRUCT(expr->rtype))
PPCError_Error(112);
} else if (!ENODE_IS(expr, EVECTOR128CONST)) {
PPCError_Error(112);
}
return result;
}
void CodeGen_InsertSpecialMacros(void) {
char *str;
CPrep_InsertSpecialMacro(&vecM, "__VEC__");
CPrep_InsertSpecialMacro(&altivecM, "__ALTIVEC__");
CPrep_InsertSpecialMacro(&powcM, "powerc");
CPrep_InsertSpecialMacro(&__powcM, "__powerc");
CPrep_InsertSpecialMacro(&hostM, "__POWERPC__");
CPrep_InsertSpecialMacro(&_ppc_M, "__ppc__");
CPrep_InsertSpecialMacro(&bendM, "__BIG_ENDIAN__");
if ((str = CMach_GetCPU()))
CPrep_InsertSpecialMacro(&ppc_cpu, str);
CPrep_InsertSpecialMacro(&profM, "__profile__");
CPrep_InsertSpecialMacro(&longI, "__fourbyteints__");
CPrep_InsertSpecialMacro(&IEEED, "__IEEEdoubles__");
CPrep_InsertSpecialMacro(&macM2, "__MACOS__");
CPrep_InsertSpecialMacro(&appleM, "__APPLE__");
CPrep_InsertSpecialMacro(&_machM, "__MACH__");
CPrep_InsertSpecialMacro(&archM, "__ARCHITECTURE__");
if (copts.optimizationlevel > 0)
CPrep_InsertSpecialMacro(&optM, "__OPTIMIZE__");
if (copts.codegen_dynamic)
CPrep_InsertSpecialMacro(&dynM, "__DYNAMIC__");
if (!copts.codegen_dynamic)
CPrep_InsertSpecialMacro(&dynM, "__STATIC__");
if (copts.oldalignment && copts.align_mode == AlignMode2_PPC)
CPrep_InsertSpecialMacro(&alignM, "__NATURAL_ALIGNMENT__");
if (!copts.ANSI_strict)
CPrep_InsertSpecialMacro(&ppcM, "ppc");
}
char *CodeGen_ExpandSpecialMacro(Macro *macro) {
if (macro == &vecM) return "10205";
if (macro == &altivecM) return "100000000";
if (macro == &powcM) return "1";
if (macro == &__powcM) return "1";
if (macro == &hostM) return "1";
if (macro == &bendM) return "1";
if (macro == &_ppc_M) return "1";
if (CMach_GetCPU() && macro == &ppc_cpu) return "1";
if (macro == &profM) return copts.profile ? "1" : "0";
if (macro == &longI) return "1";
if (macro == &IEEED) return "1";
if (macro == &macM2) return "1";
if (macro == &appleM) return "1";
if (macro == &alignM) return "1";
if (macro == &optM) {
switch (copts.optimizationlevel) {
case 1: return "1";
case 2: return "2";
case 3: return "3";
case 4: return "4";
case 0: return "0";
default: return "9";
}
}
if (macro == &_machM) return "1";
if (macro == &archM) return "ppc";
if (macro == &dynM) return "1";
if (!copts.ANSI_strict && macro == &ppcM) return "1";
if (macro == &_ppc_M) return "1";
CError_FATAL(4801);
return "0";
}
void CodeGen_reportheapinfo(Boolean release_flag, char *name, char *text) {
HeapInfo o;
HeapInfo all;
CTool_GetHeapInfo(&o, 3);
CTool_GetHeapInfo(&all, 5);
if (release_flag)
releaseoheap();
PPCError_Message(
"%n:%u HEAP STATUS\n"
" optimizer: %i blocks, used: %i, free: %i, total: %i, largest free: %i\n"
" all: %i blocks, used: %i, free: %i, total: %i, largest free: %i",
name, text,
o.blocks, o.total_size - o.total_free, o.total_free, o.total_size, o.largest_free_block,
all.blocks, all.total_size - all.total_free, all.total_free, all.total_size, all.largest_free_block
);
}
static void CodeGen_heaperror(void) {
CodeGen_reportheapinfo(1, "?", "out of memory");
if (saveheaperror) {
setheaperror(saveheaperror);
saveheaperror();
}
}
void CodeGen_InitialSanityCheck(void) {
}
Reference in New Issue View Git Blame Copy Permalink