Merge pull request #23 from pthariensflame/arm32-support

Add Arm AArch32 support

Author: sunoru

src/Random123.jl

@@ -49,8 +49,8 @@ else
     false
 end
 
-"True when AArch64 FEAT_AES instructions have been detected."
-const R123_USE_AARCH64_FEAT_AES::Bool = if Sys.ARCH ≡ :aarch64
+"True when Arm AArch64 FEAT_AES instructions have been detected."
+const R123_USE_ARM_AARCH64_FEAT_AES::Bool = if Sys.ARCH ≡ :aarch64
         try
         cmd = Base.julia_cmd()
         push!(
@@ -72,8 +72,33 @@ else
     false
 end
 
+"True when Arm AArch32 FEAT_AES instructions have been detected."
+const R123_USE_ARM_AARCH32_FEAT_AES::Bool = if Sys.ARCH ≡ :aarch64
+        try
+        cmd = Base.julia_cmd()
+        push!(
+            cmd.exec,
+            "-e",
+            "const uint8x16 = NTuple{16, VecElement{UInt8}};" *
+            "@assert ccall(\"llvm.arm.crypto.aesmc\", " *
+            "llvmcall, uint8x16, (uint8x16,), " *
+            "uint8x16((0x4a, 0x68, 0xbd, 0xe1, 0xfe, 0x16, 0x3d, " *
+            "0xec, 0xde, 0x06, 0x72, 0x86, 0xe3, 0x8c, 0x14, 0xd9))) ≡ " *
+            "uint8x16((0x70, 0xa7, 0x7b, 0xd2, 0x0c, 0x79, 0xbd, " *
+            "0xf1, 0x59, 0xc2, 0xad, 0x1a, 0x9f, 0x05, 0x37, 0x0f))",
+        )
+        success(cmd)
+    catch e
+        false
+    end
+else
+    false
+end
+
+const R123_USE_ARM_FEAT_AES::Bool = R123_USE_ARM_AARCH64_FEAT_AES || R123_USE_ARM_AARCH32_FEAT_AES
+
 "True when AES-acceleration instructions have been detected."
-const R123_USE_AESNI::Bool = R123_USE_X86_AES_NI || R123_USE_AARCH64_FEAT_AES
+const R123_USE_AESNI::Bool = R123_USE_X86_AES_NI || R123_USE_ARM_FEAT_AES
 
 @static if R123_USE_AESNI
     export AESNI1x, AESNI4x, aesni
@@ -86,10 +111,10 @@ end
     include("./x86/aesni_common.jl")
     include("./x86/aesni.jl")
     include("./x86/ars.jl")
-elseif R123_USE_AARCH64_FEAT_AES
-    include("./aarch64/aesni_common.jl")
-    include("./aarch64/aesni.jl")
-    include("./aarch64/ars.jl")
+elseif R123_USE_ARM_FEAT_AES
+    include("./arm/aesni_common.jl")
+    include("./arm/aesni.jl")
+    include("./arm/ars.jl")
 end
 
 end