using Base: llvmcall

using InteractiveUtils: code_llvm

function add1234(x::Tuple{Int32,Int32,Int32,Int32})

llvmcall("""%3 = extractvalue [4 x i32] %0, 0

ret [4 x i32] %18""",Tuple{Int32,Int32,Int32,Int32},

Tuple{Tuple{Int32,Int32,Int32,Int32},Tuple{Int32,Int32,Int32,Int32}},

(Int32(1),Int32(2),Int32(3),Int32(4)),

x)

@test add1234(map(Int32,(2,3,4,5))) === map(Int32,(3,5,7,9))

baremodule PlusTest

using Base: llvmcall

using Test

using Base

function +(x::Int32, y::Int32)

llvmcall("""%3 = add i32 %1, %0

ret i32 %3""",

Int32,

Tuple{Int32, Int32},

x,

y)

end

@test Int32(1) + Int32(2) == Int32(3)

@test_throws ErrorException eval(Expr(:call,Core.Intrinsics.llvmcall,

"""%3 = add i32 %1, %0

ret i32 %3""", Int32, Tuple{Int32, Int32},

Int32(1), Int32(2))) # llvmcall must be compiled to be called

function undeclared_ceil(x::Float64)

llvmcall("""%2 = call double @llvm.ceil.f64(double %0)

ret double %2""", Float64, Tuple{Float64}, x)

@test_throws ErrorException undeclared_ceil(4.2)

@test_throws ErrorException undeclared_ceil(4.2)

function declared_floor(x::Float64)

llvmcall(

("""declare double @llvm.floor.f64(double)

""", "entry"), Float64, Tuple{Float64}, x)

@test declared_floor(4.2) ≈ 4.

ir = sprint(code_llvm, declared_floor, Tuple{Float64})

@test occursin("call double @llvm.floor.f64", ir) # should be inlined

function doubly_declared_floor(x::Float64)

llvmcall(

("""declare double @llvm.floor.f64(double)

""", "entry"), Float64, Tuple{Float64}, x+1)-1

@test doubly_declared_floor(4.2) ≈ 4.

function doubly_declared2_trunc(x::Float64)

a = llvmcall(

("""declare double @llvm.trunc.f64(double)

""", "entry"), Float64, Tuple{Float64}, x)

b = llvmcall(

("""declare double @llvm.trunc.f64(double)

""", "entry"), Float64, Tuple{Float64}, x+1)-1

a + b

@test doubly_declared2_trunc(4.2) ≈ 8.

function call_jl_errno()

llvmcall(

("""declare i32 @jl_errno()

""", "entry"),Int32,Tuple{})

call_jl_errno()

module ObjLoadTest

using Base: llvmcall, @ccallable

using Test

didcall = false

@ccallable Cvoid function jl_the_callback()

global didcall

didcall = true

nothing

end

@test_throws(ErrorException("@ccallable was already defined for this method name"),

@eval @ccallable Cvoid jl_the_callback(not_the_method::Int) = "other")

# Make sure everything up until here gets compiled

@test jl_the_callback() === nothing

@test jl_the_callback(1) == "other"

didcall = false

function do_the_call()

llvmcall(

("""declare void @jl_the_callback()

""", "entry"),Cvoid,Tuple{})

end

do_the_call()

@test didcall

local foo

function foo()

# this IR snippet triggers an optimization relying

# on the llvmcall function having a parent module

Base.llvmcall(

"""%1 = getelementptr i64, i64* null, i64 1

ret void""",

Cvoid, Tuple{})

code_llvm(devnull, foo, ())

module CcallableRetTypeTest

using Base: llvmcall, @ccallable

using Test

@ccallable function jl_test_returns_float()::Float64

return 42

end

function do_the_call()

llvmcall(

("""declare double @jl_test_returns_float()

""", "entry"),Float64,Tuple{})

end

@test do_the_call() === 42.0

module LLVMCallFunctionTest

using Base: llvmcall

using Test

const libllvmcalltest = "libllvmcalltest"

const the_ir = unsafe_string(ccall((:MakeIdentityFunction, libllvmcalltest), Cstring, (Any,), Any))

@eval really_complicated_identity(x) = llvmcall(($(the_ir), "identity"), Any, Tuple{Any}, x)

mutable struct boxed_struct

end

let x = boxed_struct()

@test really_complicated_identity(x) === x

end

# Define two functions that each compute the address of a dedicated internal global variable.

# The names of these globals are the same, so if their linkages are overwritten, then the

# linker will merge the globals. Consequently, we can test that linkage is preserved by testing

# that the addresses of the globals differ. The next few lines of code do just that.

const the_other_ir1 = unsafe_string(ccall((:MakeLoadGlobalFunction, libllvmcalltest), Cstring, ()))

const the_other_ir2 = unsafe_string(ccall((:MakeLoadGlobalFunction, libllvmcalltest), Cstring, ()))

@eval global_value_address1() = llvmcall(($(the_other_ir1), "load_global_var"), Int64, Tuple{})

@eval global_value_address2() = llvmcall(($(the_other_ir2), "load_global_var"), Int64, Tuple{})

@test global_value_address1() != global_value_address2()

f34166(x) = Base.llvmcall("ret i$(Sys.WORD_SIZE) %0", Int, (Int,), x)

@test_throws ErrorException f34166(1)

struct MyStruct

kern::UInt64

ptr::Core.LLVMPtr{UInt8,1}

MyStruct(kern) = MyStruct(kern, reinterpret(Core.LLVMPtr{UInt8,1}, 0))

MyStruct() = MyStruct(0)

s = MyStruct()

@test s.kern == 0

@test reinterpret(Int, s.ptr) == 0