diff options
Diffstat (limited to 'src/llvm_backend_proc.cpp')
| -rw-r--r-- | src/llvm_backend_proc.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/llvm_backend_proc.cpp b/src/llvm_backend_proc.cpp index ffbb532f0..4afaa4126 100644 --- a/src/llvm_backend_proc.cpp +++ b/src/llvm_backend_proc.cpp @@ -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; |