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Gor Nishanov 750a36491c [coroutines] Spill the result of the invoke instruction correctly

Summary:
When we decide that the result of the invoke instruction need to be spilled, we need to insert the spill into a block that is on the normal edge coming out of the invoke instruction. (Prior to this change the code would insert the spill immediately after the invoke instruction, which breaks the IR, since invoke is a terminator instruction).

In the following example, we will split the edge going into %cont and insert the spill there.

```
  %r = invoke double @print(double 0.0) to label %cont unwind label %pad

  cont:
    %0 = call i8 @llvm.coro.suspend(token none, i1 false)
    switch i8 %0, label %suspend [i8 0, label %resume
                                  i8 1, label %cleanup]
  resume:
    call double @print(double %r)
```

Reviewers: majnemer

Reviewed By: majnemer

Subscribers: mehdi_amini, llvm-commits, EricWF

Differential Revision: https://reviews.llvm.org/D29102

llvm-svn: 293006

2017-01-25 02:25:54 +00:00

ArgAddr.ll

[Coroutines] Part12: Handle alloca address-taken

2016-09-05 23:45:45 +00:00

coro-cleanup.ll

[Coroutines] Part 15a: Lower coro.subfn.addr in CoroCleanup

2016-09-30 18:41:35 +00:00

coro-early.ll

Part 4c: Coroutine Devirtualization: Devirtualize coro.resume and coro.destroy.

2016-08-06 02:16:35 +00:00

coro-elide.ll

[Coroutines] Part 9: Add cleanup subfunction.