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artiq/lit-test/test/interleaving/overlapping.py
whitequark cb3b811fd7 compiler: maintain both the IR and iodelay forms of delay expressions.
After this commit, the delay instruction (again) does not generate
any LLVM IR: all heavy lifting is relegated to the delay and delay_mu
intrinsics. When the interleave transform needs to adjust the global
timeline, it synthesizes a delay_mu intrinsnic. This way,
the interleave transformation becomes composable, as the input and
the output IR invariants are the same.

Also, code generation is adjusted so that a basic block is split off
not only after a delay call, but also before one; otherwise, e.g.,
code immediately at the beginning of a `with parallel:` branch
would have no choice but to execute after another branch has already
advanced the timeline.

This takes care of issue #1 described in 50e7b44 and is a step
to solving issue #2.
2015-11-21 03:22:47 +08:00

26 lines
533 B
Python

# RUN: %python -m artiq.compiler.testbench.jit %s >%t
# RUN: OutputCheck %s --file-to-check=%t
def g():
with parallel:
with sequential:
print("A", now_mu())
delay_mu(3)
#
print("B", now_mu())
with sequential:
print("C", now_mu())
delay_mu(2)
#
print("D", now_mu())
delay_mu(2)
#
print("E", now_mu())
# CHECK-L: A 0
# CHECK-L: C 0
# CHECK-L: D 2
# CHECK-L: B 3
# CHECK-L: E 4
g()