func (fr *frame) condBrRuntimeError(cond llvm.Value, errcode uint64) {
if cond.IsNull() {
return
}
errorbb := fr.runtimeErrorBlocks[errcode]
newbb := errorbb.C == nil
if newbb {
errorbb = llvm.AddBasicBlock(fr.function, "")
fr.runtimeErrorBlocks[errcode] = errorbb
}
contbb := llvm.AddBasicBlock(fr.function, "")
br := fr.builder.CreateCondBr(cond, errorbb, contbb)
fr.setBranchWeightMetadata(br, 1, 1000)
if newbb {
fr.builder.SetInsertPointAtEnd(errorbb)
fr.runtime.runtimeError.call(fr, llvm.ConstInt(llvm.Int32Type(), errcode, false))
fr.builder.CreateUnreachable()
}
fr.builder.SetInsertPointAtEnd(contbb)
}