Remove julia level type rules (#2130)

Author: wsmoses

src/api.jl

@@ -441,9 +441,9 @@ function CreateTypeAnalysis(logic, rulenames, rules)
         EnzymeTypeAnalysisRef,
         (EnzymeLogicRef, Ptr{Cstring}, Ptr{CustomRuleType}, Csize_t),
         logic,
-        rulenames,
-        rules,
-        length(rules),
+        rulenames isa Tuple{} ? C_NULL : rulenames,
+        rules isa Tuple{} ? C_NULL : rules,
+        rulenames isa Tuple{} ? 0 : length(rules),
     )
 end
 

src/compiler.jl

@@ -3940,7 +3940,6 @@ function enzyme_extract_parm_type(fn::LLVM.Function, idx::Int, error::Bool = tru
     return ty, byref
 end
 
-include("rules/typerules.jl")
 include("rules/activityrules.jl")
 
 @inline Base.convert(::Type{API.CDIFFE_TYPE}, ::Type{A}) where {A<:Const} = API.DFT_CONSTANT
@@ -4073,107 +4072,8 @@ function enzyme!(
         convert(API.CDIFFE_TYPE, rt)
     end
 
-    rules = Dict{String,API.CustomRuleType}(
-        "jl_array_copy" => @cfunction(
-            inout_rule,
-            UInt8,
-            (
-                Cint,
-                API.CTypeTreeRef,
-                Ptr{API.CTypeTreeRef},
-                Ptr{API.IntList},
-                Csize_t,
-                LLVM.API.LLVMValueRef,
-            )
-        ),
-        "ijl_array_copy" => @cfunction(
-            inout_rule,
-            UInt8,
-            (
-                Cint,
-                API.CTypeTreeRef,
-                Ptr{API.CTypeTreeRef},
-                Ptr{API.IntList},
-                Csize_t,
-                LLVM.API.LLVMValueRef,
-            )
-        ),
-        "jl_genericmemory_copy_slice" => @cfunction(
-            inoutcopyslice_rule,
-            UInt8,
-            (
-                Cint,
-                API.CTypeTreeRef,
-                Ptr{API.CTypeTreeRef},
-                Ptr{API.IntList},
-                Csize_t,
-                LLVM.API.LLVMValueRef,
-            )
-        ),
-        "ijl_genericmemory_copy_slice" => @cfunction(
-            inoutcopyslice_rule,
-            UInt8,
-            (
-                Cint,
-                API.CTypeTreeRef,
-                Ptr{API.CTypeTreeRef},
-                Ptr{API.IntList},
-                Csize_t,
-                LLVM.API.LLVMValueRef,
-            )
-        ),
-        "jl_inactive_inout" => @cfunction(
-            inout_rule,
-            UInt8,
-            (
-                Cint,
-                API.CTypeTreeRef,
-                Ptr{API.CTypeTreeRef},
-                Ptr{API.IntList},
-                Csize_t,
-                LLVM.API.LLVMValueRef,
-            )
-        ),
-        "jl_excstack_state" => @cfunction(
-            int_return_rule,
-            UInt8,
-            (
-                Cint,
-                API.CTypeTreeRef,
-                Ptr{API.CTypeTreeRef},
-                Ptr{API.IntList},
-                Csize_t,
-                LLVM.API.LLVMValueRef,
-            )
-        ),
-        "ijl_excstack_state" => @cfunction(
-            int_return_rule,
-            UInt8,
-            (
-                Cint,
-                API.CTypeTreeRef,
-                Ptr{API.CTypeTreeRef},
-                Ptr{API.IntList},
-                Csize_t,
-                LLVM.API.LLVMValueRef,
-            )
-        ),
-        "julia.except_enter" => @cfunction(
-            int_return_rule,
-            UInt8,
-            (
-                Cint,
-                API.CTypeTreeRef,
-                Ptr{API.CTypeTreeRef},
-                Ptr{API.IntList},
-                Csize_t,
-                LLVM.API.LLVMValueRef,
-            )
-        ),
-    )
-
     logic = Logic()
-    TA = TypeAnalysis(logic, rules)
+    TA = TypeAnalysis(logic)
 
     retTT = if !isa(actualRetType, Union) &&
             actualRetType <: Tuple &&

src/rules/allocrules.jl

@@ -86,14 +86,6 @@ function array_shadow_handler(
     return ref
 end
 
-function null_free_handler(
-    B::LLVM.API.LLVMBuilderRef,
-    ToFree::LLVM.API.LLVMValueRef,
-    Fn::LLVM.API.LLVMValueRef,
-)::LLVM.API.LLVMValueRef
-    return C_NULL
-end
-
 function register_alloc_handler!(variants, alloc_handler, free_handler)
     for variant in variants
         API.EnzymeRegisterAllocationHandler(variant, alloc_handler, free_handler)
@@ -120,10 +112,6 @@ end
                 API.EnzymeGradientUtilsRef,
             )
         ),
-        @cfunction(
-            null_free_handler,
-            LLVM.API.LLVMValueRef,
-            (LLVM.API.LLVMBuilderRef, LLVM.API.LLVMValueRef, LLVM.API.LLVMValueRef)
-        )
+        C_NULL
     )
 end

src/rules/typerules.jl

@@ -9,15 +9,19 @@ LLVM.dispose(ta::TypeAnalysis) = API.FreeTypeAnalysis(ta)
 
 function TypeAnalysis(
     logic,
-    typerules::Dict{String,CustomRuleType} = Dict{String,CustomRuleType}(),
+    typerules::Union{Dict{String,CustomRuleType}, Nothing} = nothing,
 )
-    rulenames = String[]
-    rules = CustomRuleType[]
-    for (rulename, rule) in typerules
-        push!(rulenames, rulename)
-        push!(rules, rule)
+    if typerules isa Nothing
+        ref = API.CreateTypeAnalysis(logic, (), ())
+    else
+        rulenames = String[]
+        rules = CustomRuleType[]
+        for (rulename, rule) in typerules
+            push!(rulenames, rulename)
+            push!(rules, rule)
+        end
+        ref = API.CreateTypeAnalysis(logic, rulenames, rules)
     end
-    ref = API.CreateTypeAnalysis(logic, rulenames, rules)
     TypeAnalysis(ref)
 end