[LLVMdev] Order of code generation

[Sanjoy Das]

Hi!

I have a DAG (attached), which, according to me, should result in the
code for coroutine_make be generated _before_ the ret.

However, it seems that the corresponding EmitInstrWithCustomInserter is
being called /after/ the RET instruction has already been emitted.

The LLVM code I'm trying to compile is this (coroutine_make is an
intrinsic I've added):

declare i32 @llvm.coroutine_size()
declare void @llvm.coroutine_make(i64 *, i64 *, i8 *, i32)

define i64 * @foo() {
    %a = call i32 @llvm.coroutine_size()
    %b = alloca i64, i32 %a
    %func = bitcast i64* () * @foo to i64 *
    call void @llvm.coroutine_make(i64 * %b, i64 * %func, i8 * null, i32 20)
    ret i64 *%b
}

What am I doing wrong? How do I fix this?

Thanks!

-- 
Sanjoy Das
http://playingwithpointers.com
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