diff options
Diffstat (limited to '')
| -rw-r--r-- | unsorted/OptimizerHelpers.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/unsorted/OptimizerHelpers.c b/unsorted/OptimizerHelpers.c new file mode 100644 index 0000000..8b4bf36 --- /dev/null +++ b/unsorted/OptimizerHelpers.c @@ -0,0 +1,166 @@ +#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; +} |