diff options
| -rw-r--r-- | compiler/calls.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/compiler/calls.go b/compiler/calls.go index 65a69fea3..a110addcf 100644 --- a/compiler/calls.go +++ b/compiler/calls.go @@ -36,7 +36,11 @@ const ( // createRuntimeCallCommon creates a runtime call. Use createRuntimeCall or // createRuntimeInvoke instead. func (b *builder) createRuntimeCallCommon(fnName string, args []llvm.Value, name string, isInvoke bool) llvm.Value { - fn := b.program.ImportedPackage("runtime").Members[fnName].(*ssa.Function) + member := b.program.ImportedPackage("runtime").Members[fnName] + if member == nil { + panic("unknown runtime call: " + fnName) + } + fn := member.(*ssa.Function) fnType, llvmFn := b.getFunction(fn) if llvmFn.IsNil() { panic("trying to call non-existent function: " + fn.RelString(nil)) |