Drop support for Julia 1.6-1.7.

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: ['1.6', '1.7', '1.8', '1.9', 'nightly']
+        version: ['1.8', '1.9', 'nightly']
         os: ['ubuntu-latest', 'macOS-latest', 'windows-latest']
         arch: [x64]
         llvm_args: ['']
@@ -85,7 +85,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        branch: ['release-1.6', 'release-1.7', 'release-1.8', 'release-1.9', 'master']
+        branch: ['release-1.8', 'release-1.9', 'master']
         os: ['ubuntu-latest', 'macOS-latest', 'windows-latest']
         arch: ['x64']
         llvm_args: ['']
@@ -114,10 +114,6 @@ jobs:
           - branch: 'master'
             os: 'macOS-latest'
             arch: 'x64'
-          # 1.6 requires gfortran, which isn't available on macOS runners
-          - branch: 'release-1.6'
-            os: 'macOS-latest'
-            arch: 'x64'
     steps:
       - uses: actions/checkout@v3
         with:
@@ -191,7 +187,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@latest
         with:
-          version: '1.6'
+          version: '1.8'
       - name: Install dependencies
         run: julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate()'
       - name: Build and deploy

Project.toml

@@ -12,4 +12,4 @@ Unicode = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"
 [compat]
 CEnum = "0.2, 0.3, 0.4"
 LLVMExtra_jll = "=0.0.23"
-julia = "1.6"
+julia = "1.8"

README.md

@@ -25,6 +25,16 @@ by Julia, to interoperate with the Julia compiler, or to create your own compile
 heavily used by the different GPU compilers for the Julia programming language.
 
 
+## Requirements
+
+LLVM.jl is supported on Juila 1.8+, and thus requires LLVM 13. However, the package is
+really only **intended to be used with the LLVM library shipped with Julia**. That means you
+can not use it with other LLVM libraries, like the one provided by your operating system. It
+is recommended to use the official binaries from
+[julialang.org](https://julialang.org/downloads/), but custom builds are supported too (as
+long as they provide a dynamically-linked copy of the LLVM library).
+
+
 ## Installation
 
 LLVM.jl can be installed with the Julia package manager.
@@ -39,9 +49,3 @@ Or, equivalently, via the `Pkg` API:
 ```julia
 julia> import Pkg; Pkg.add("LLVM")
 ```
-
-Note that the package **is intended to be used with the LLVM library shipped with Julia**.
-That means you can not use it with other LLVM libraries, like the one provided by your
-operating system. It is recommended to use the official binaries from
-[julialang.org](https://julialang.org/downloads/), but custom builds are supported too (as
-long as they provide a dynamically-linked copy of the LLVM library).

examples/sum_orc.jl

@@ -41,51 +41,21 @@ function codegen!(mod::LLVM.Module, name, tm)
 end
 
 tm = JITTargetMachine()
-if LLVM.has_orc_v2()
-    # XXX: LLJIT calls TargetMachineBuilder which disposes the TargetMachine
-    jit = LLJIT(; tm=JITTargetMachine())
-
-    @dispose ts_ctx=ThreadSafeContext() begin
-        ts_mod = ThreadSafeModule("jit")
-        name = "sum_orc.jl"
-        ts_mod() do mod
-            codegen!(mod, name, tm)
-        end
-
-        jd = JITDylib(jit)
-        add!(jit, jd, ts_mod)
-        addr = lookup(jit, name)
-
-        @eval call_sum(x, y) = ccall($(pointer(addr)), Int32, (Int32, Int32), x, y)
-    end
-else
-    jit = OrcJIT(tm)
-    register!(jit, GDBRegistrationListener())
+# XXX: LLJIT calls TargetMachineBuilder which disposes the TargetMachine
+jit = LLJIT(; tm=JITTargetMachine())
 
-    @dispose ctx=Context() begin
-        mod = LLVM.Module("jit")
-        name = mangle(jit, "sum_orc.jl")
+@dispose ts_ctx=ThreadSafeContext() begin
+    ts_mod = ThreadSafeModule("jit")
+    name = "sum_orc.jl"
+    ts_mod() do mod
         codegen!(mod, name, tm)
-
-        # For debugging:
-        #   asm = String(convert(Vector{UInt8}, emit(tm, mod, LLVM.API.LLVMAssemblyFile)))
-        #   write(stdout, asm)
-
-        jitted_mod = compile!(jit, mod)
-
-        addr = address(jit, name)
-        addr2 = addressin(jit, jitted_mod, name)
-        @test addr == addr2
-        @test addr.ptr != 0
-
-        # For debugging:
-        #   ccall(:jl_breakpoint, Cvoid, (Any,), pointer(addr))
-        # Then in GDB
-        #   b *(*(uint64_t*)v)
-        @eval call_sum(x, y) = ccall($(pointer(addr)), Int32, (Int32, Int32), x, y)
     end
 
-    unregister!(jit, GDBRegistrationListener())
+    jd = JITDylib(jit)
+    add!(jit, jd, ts_mod)
+    addr = lookup(jit, name)
+
+    @eval call_sum(x, y) = ccall($(pointer(addr)), Int32, (Int32, Int32), x, y)
 end
 
 @test call_sum(x, y) == x + y

src/LLVM.jl

@@ -48,6 +48,9 @@ include(joinpath(@__DIR__, "..", "lib", "libLLVM_julia.jl"))
 
 end # module API
 
+has_newpm() = LLVM.version() >= v"15"
+has_julia_ojit() = VERSION >= v"1.10.0-DEV.1395"
+
 # LLVM API wrappers
 include("support.jl")
 include("types.jl")
@@ -72,19 +75,7 @@ include("debuginfo.jl")
 include("dibuilder.jl")
 include("jitevents.jl")
 include("utils.jl")
-
-has_orc_v1() = v"8" <= LLVM.version() < v"12"
-if has_orc_v1()
-    include("orc.jl")
-end
-
-has_orc_v2() = v"12" <= LLVM.version()
-has_julia_ojit() = VERSION >= v"1.10.0-DEV.1395"
-if has_orc_v2()
-    include("orcv2.jl")
-end
-
-has_newpm() = v"15" <= LLVM.version()
+include("orc.jl")
 if has_newpm()
     include("newpm.jl")
 end

src/core/attributes.jl

@@ -30,12 +30,9 @@ function Attribute(ref::API.LLVMAttributeRef)
         return EnumAttribute(ref)
     elseif convert(Core.Bool, API.LLVMIsStringAttribute(ref))
         return StringAttribute(ref)
+    elseif convert(Core.Bool, API.LLVMIsTypeAttribute(ref))
+        return TypeAttribute(ref)
     else
-        @static if LLVM.version() >= v"12"
-            if convert(Core.Bool, API.LLVMIsTypeAttribute(ref))
-                return TypeAttribute(ref)
-            end
-        end
         error("unknown attribute kind")
     end
 end

src/interop/base.jl

@@ -33,16 +33,9 @@ function call_function(llvmf::LLVM.Function, rettyp::Type=Nothing, argtyp::Type=
     ir = string(mod)
     fn = LLVM.name(llvmf)
     @assert !isempty(fn)
-    if VERSION >= v"1.8.0-DEV.410"
-        quote
-            Base.@inline
-            Base.llvmcall(($ir,$fn), $rettyp, $argtyp, $(args...))
-        end
-    else
-        quote
-            Base.@_inline_meta
-            Base.llvmcall(($ir,$fn), $rettyp, $argtyp, $(args...))
-        end
+    quote
+        Base.@inline
+        Base.llvmcall(($ir,$fn), $rettyp, $argtyp, $(args...))
     end
 end
 

src/interop/passes.jl

@@ -35,8 +35,4 @@ remove_ni!(pm::PassManager) = API.LLVMAddRemoveNIPass(pm)
 
 julia_licm!(pm::PassManager) = API.LLVMAddJuliaLICMPass(pm)
 
-if VERSION >= v"1.8.0-DEV.1120"
-    cpu_features!(pm::PassManager) = API.LLVMAddCPUFeaturesPass(pm)
-else
-    cpu_features!(pm::PassManager) = nothing
-end
+cpu_features!(pm::PassManager) = API.LLVMAddCPUFeaturesPass(pm)