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Adding better register tracking through locals and fixing branches.

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LLVM does an amazing job of optimizing this. There are many opportunities
to make it better, too, by preventing spilling where not required or only
spilling/filling things when needed.
This commit is contained in:
Ben Vanik
2013-01-25 00:32:42 -08:00
parent 47481fecf7
commit dcb958de54
9 changed files with 440 additions and 219 deletions
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31
src/cpu/exec_module.cc
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@@ -202,14 +202,19 @@ XECLEANUP:
return result_code;
}
void XeTraceKernelCall(xe_ppc_state_t* state, uint32_t cia, uint32_t call_ia) {
// TODO(benvanik): get names
XELOGCPU("TRACE: %.8X -> k.%.8X", call_ia, cia);
void XeIndirectBranch(xe_ppc_state_t* state, uint64_t target, uint64_t br_ia) {
printf("INDIRECT BRANCH %.8X -> %.8X\n", (uint32_t)br_ia, (uint32_t)target);
XEASSERTALWAYS();
}
void XeTraceUserCall(xe_ppc_state_t* state, uint32_t cia, uint32_t call_ia) {
void XeTraceKernelCall(xe_ppc_state_t* state, uint64_t cia, uint64_t call_ia) {
// TODO(benvanik): get names
XELOGCPU("TRACE: %.8X -> u.%.8X", call_ia, cia);
XELOGCPU("TRACE: %.8X -> k.%.8X", (uint32_t)call_ia, (uint32_t)cia);
}
void XeTraceUserCall(xe_ppc_state_t* state, uint64_t cia, uint64_t call_ia) {
// TODO(benvanik): get names
XELOGCPU("TRACE: %.8X -> u.%.8X", (uint32_t)call_ia, (uint32_t)cia);
}
void XeTraceInstruction(xe_ppc_state_t* state, uint32_t cia, uint32_t data) {
@@ -244,11 +249,23 @@ int ExecModule::InjectGlobals() {
ConstantInt::get(intPtrTy, (uintptr_t)xe_memory_addr(memory_, 0)),
int8PtrTy));
// Control methods:
std::vector<Type*> indirectBranchArgs;
indirectBranchArgs.push_back(int8PtrTy);
indirectBranchArgs.push_back(Type::getInt64Ty(context));
indirectBranchArgs.push_back(Type::getInt64Ty(context));
FunctionType* indirectBranchTy = FunctionType::get(
Type::getVoidTy(context), indirectBranchArgs, false);
gv = new GlobalVariable(*gen_module_, indirectBranchTy, true,
GlobalVariable::ExternalLinkage, 0,
"XeIndirectBranch");
engine_->addGlobalMapping(gv, (void*)&XeIndirectBranch);
// Tracing methods:
std::vector<Type*> traceCallArgs;
traceCallArgs.push_back(int8PtrTy);
traceCallArgs.push_back(Type::getInt32Ty(context));
traceCallArgs.push_back(Type::getInt32Ty(context));
traceCallArgs.push_back(Type::getInt64Ty(context));
traceCallArgs.push_back(Type::getInt64Ty(context));
FunctionType* traceCallTy = FunctionType::get(
Type::getVoidTy(context), traceCallArgs, false);
std::vector<Type*> traceInstructionArgs;