Bump LLVM compat. (#617)

Author: maleadt

Project.toml

@@ -1,7 +1,7 @@
 name = "GPUCompiler"
 uuid = "61eb1bfa-7361-4325-ad38-22787b887f55"
 authors = ["Tim Besard <[email protected]>"]
-version = "0.27.0"
+version = "0.27.1"
 
 [deps]
 ExprTools = "e2ba6199-217a-4e67-a87a-7c52f15ade04"
@@ -20,7 +20,7 @@ UUIDs = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"
 [compat]
 ExprTools = "0.1"
 InteractiveUtils = "1"
-LLVM = "8"
+LLVM = "8, 9"
 Libdl = "1"
 Logging = "1"
 PrecompileTools = "1"