Restore nameless IRBuilder insert method. (#483)

Author: maleadt

Project.toml

@@ -1,6 +1,6 @@
 name = "LLVM"
 uuid = "929cbde3-209d-540e-8aea-75f648917ca0"
-version = "9.1.1"
+version = "9.1.2"
 
 [deps]
 CEnum = "fa961155-64e5-5f13-b03f-caf6b980ea82"

src/irbuilder.jl

@@ -87,7 +87,7 @@ position!(builder::IRBuilder) = API.LLVMClearInsertionPosition(builder)
 Insert an instruction into the current basic block at the current position, optionally
 giving it a name.
 """
-Base.insert!(builder::IRBuilder, inst::Instruction, name::String) =
+Base.insert!(builder::IRBuilder, inst::Instruction, name::String="") =
     API.LLVMInsertIntoBuilderWithName(builder, inst, name)
 
 """

test/instructions_tests.jl

@@ -558,11 +558,14 @@ end
         entry = BasicBlock(fun, "entry")
         position!(builder, entry)
         # add and substract 42
+
         a = fadd!(builder, parameters(fun)[1], LLVM.ConstantFP(Float32(42.)), "a")
-        # fast_math!(a; all=true)
         b = fsub!(builder, a, LLVM.ConstantFP(Float32(42.)), "b")
-        # fast_math!(b; all=true)
-        ret!(builder, b)
+        retinst = ret!(builder, b)
+
+        # support for removing/insertion
+        remove!(retinst)
+        insert!(builder, retinst)
     end
     verify(mod)