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#include "parser.h"
Boolean setOldOptimizerOptions;
typedef struct {
Boolean commonsubs;
Boolean loopinvariants;
Boolean propagation;
Boolean deadstore;
Boolean strengthreduction;
Boolean deadcode;
Boolean lifetimes;
} PIROptimizer; // assumed name
static PIROptimizer pIrOptimizer = {0};
Pragma irPragmas[] = {
&pIrOptimizer.commonsubs, "opt_common_subs", 0,
&pIrOptimizer.loopinvariants, "opt_loop_invariants", 0,
&pIrOptimizer.propagation, "opt_propagation", 0,
&pIrOptimizer.deadstore, "opt_dead_assignments", 0,
&pIrOptimizer.deadcode, "opt_dead_code", 0,
&pIrOptimizer.strengthreduction, "opt_strength_reduction", 0,
&pIrOptimizer.lifetimes, "opt_lifetimes", 0,
0, 0, 0
};
int SetPragmaOptimizationsToUnspecified(const char *opt, void *, const char *, int) {
if (setOldOptimizerOptions)
Option_Warning(CLPStr62);
memset(&pIrOptimizer, 0, sizeof(pIrOptimizer));
TargetSetPragmaOptimizationsToUnspecified();
return 1;
}
int SetOptFlags(const char *opt, void *str, const char *, int flags) {
// this is very similar to ToolHelper
// might also fail to match
unsigned char *ptr;
Boolean set;
Boolean no;
UInt16 flag;
ptr = (unsigned char *) str;
no = (Boolean) ((flags & PARAMPARSEFLAGS_8) >> 3);
set = (Boolean) (no ^ 1);
while (*ptr) {
if (*ptr == '+') {
set = !no;
} else if (*ptr == '-') {
set = no;
} else if (*ptr == '|') {
set = (Boolean) (no ^ 1);
} else {
flag = (ptr[0] << 8) | ptr[1];
if ((flag >= 'G0' && flag <= 'G4') || (flag == 'Gs') || (flag == 'Gp'))
SetPragmaOptimizationsToUnspecified(opt, NULL, NULL, 0);
switch (flag) {
case 'Cs':
pIrOptimizer.commonsubs = set ? 1 : 2;
setOldOptimizerOptions = 1;
break;
case 'Li':
pIrOptimizer.loopinvariants = set ? 1 : 2;
setOldOptimizerOptions = 1;
break;
case 'Pr':
pIrOptimizer.propagation = set ? 1 : 2;
setOldOptimizerOptions = 1;
break;
case 'Ds':
pIrOptimizer.deadstore = set ? 1 : 2;
setOldOptimizerOptions = 1;
break;
case 'Sr':
pIrOptimizer.strengthreduction = set ? 1 : 2;
setOldOptimizerOptions = 1;
break;
case 'Dc':
pIrOptimizer.deadcode = set ? 1 : 2;
setOldOptimizerOptions = 1;
break;
case 'Lt':
pIrOptimizer.lifetimes = set ? 1 : 2;
setOldOptimizerOptions = 1;
break;
case 'G0':
pGlobalOptimizer.optimizationlevel = set ? 0 : 0;
break;
case 'G1':
pGlobalOptimizer.optimizationlevel = set ? 1 : 0;
break;
case 'G2':
pGlobalOptimizer.optimizationlevel = set ? 2 : 0;
break;
case 'G3':
pGlobalOptimizer.optimizationlevel = set ? 3 : 0;
break;
case 'G4':
pGlobalOptimizer.optimizationlevel = set ? 4 : 0;
break;
case 'Gs':
pGlobalOptimizer.optfor = set ? 1 : 0;
break;
case 'Gp':
pGlobalOptimizer.optfor = set ? 0 : 1;
break;
default:
if (!TargetSetOptFlags(flag, set))
CLPFatalError("Bad optimizer settings in %s (%c%c)\n", str, ptr[0], ptr[1]);
}
++ptr;
}
++ptr;
}
return 1;
}
int DisplayOptimizationOptions() {
SInt32 oldsize;
Handle h;
h = NewHandle(0);
if (!h)
exit(-23);
HPrintF(h, "\t- global optimizer level %d\n", pGlobalOptimizer.optimizationlevel);
HPrintF(h, "\t- global optimize for %s\n", (pGlobalOptimizer.optfor == 0) ? "speed" : "size");
oldsize = GetHandleSize(h);
if (pIrOptimizer.commonsubs)
HPrintF(h, "\t- common subexpression elimination %s\n", (pIrOptimizer.commonsubs == 1) ? "on" : "off");
if (pIrOptimizer.loopinvariants)
HPrintF(h, "\t- loop invariants %s\n", (pIrOptimizer.loopinvariants == 1) ? "on" : "off");
if (pIrOptimizer.commonsubs)
HPrintF(h, "\t- constant propagation %s\n", (pIrOptimizer.propagation == 1) ? "on" : "off");
if (pIrOptimizer.deadstore)
HPrintF(h, "\t- dead store elimination %s\n", (pIrOptimizer.deadstore == 1) ? "on" : "off");
if (pIrOptimizer.deadcode)
HPrintF(h, "\t- dead code elimination %s\n", (pIrOptimizer.deadcode == 1) ? "on" : "off");
if (pIrOptimizer.strengthreduction)
HPrintF(h, "\t- strength reduction %s\n", (pIrOptimizer.strengthreduction == 1) ? "on" : "off");
if (pIrOptimizer.lifetimes)
HPrintF(h, "\t- variable lifetimes %s\n", (pIrOptimizer.lifetimes == 1) ? "on" : "off");
if (oldsize == GetHandleSize(h))
HPrintF(h, "\t- no extra global optimizations\n");
HPrintF(h, "Backend-specific optimizer options:\n");
oldsize = GetHandleSize(h);
TargetDisplayOptimizationOptions(h);
if (oldsize == GetHandleSize(h))
HPrintF(h, "\t- no extra backend-specific optimizations\n");
ShowTextHandle(NULL, h);
DisposeHandle(h);
return 1;
}
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