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Add intrinsics.prefetch_* procedures

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This commit is contained in:
gingerBill
2021-09-11 17:30:44 +01:00
parent c51c002ffa
commit 7260d3cecb
5 changed files with 105 additions and 11 deletions
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48
src/llvm_backend_proc.cpp
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@@ -1831,6 +1831,54 @@ lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValue const &tv,
return lb_emit_conv(p, res, t);
}
case BuiltinProc_prefetch_read_instruction:
case BuiltinProc_prefetch_read_data:
case BuiltinProc_prefetch_write_instruction:
case BuiltinProc_prefetch_write_data:
{
lbValue ptr = lb_emit_conv(p, lb_build_expr(p, ce->args[0]), t_rawptr);
unsigned long long locality = cast(unsigned long long)exact_value_to_i64(ce->args[1]->tav.value);
unsigned long long rw = 0;
unsigned long long cache = 0;
switch (id) {
case BuiltinProc_prefetch_read_instruction:
rw = 0;
cache = 0;
break;
case BuiltinProc_prefetch_read_data:
rw = 0;
cache = 1;
break;
case BuiltinProc_prefetch_write_instruction:
rw = 1;
cache = 0;
break;
case BuiltinProc_prefetch_write_data:
rw = 1;
cache = 1;
break;
}
char const *name = "llvm.prefetch";
LLVMTypeRef types[1] = {lb_type(p->module, t_rawptr)};
unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
GB_ASSERT_MSG(id != 0, "Unable to find %s.%s", name, LLVMPrintTypeToString(types[0]));
LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, types, gb_count_of(types));
LLVMTypeRef llvm_i32 = lb_type(p->module, t_i32);
LLVMValueRef args[4] = {};
args[0] = ptr.value;
args[1] = LLVMConstInt(llvm_i32, rw, false);
args[2] = LLVMConstInt(llvm_i32, locality, false);
args[3] = LLVMConstInt(llvm_i32, cache, false);
lbValue res = {};
res.value = LLVMBuildCall(p->builder, ip, args, gb_count_of(args), "");
res.type = nullptr;
return res;
}
case BuiltinProc_syscall:
{
unsigned arg_count = cast(unsigned)ce->args.count;