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Author SHA1 Message Date
whitequark 50e7b44d04 compiler: actually implement interleaving correctly (calls are still broken). 
The previous implementation was completely wrong: it always advanced
the global timeline by the same amount as the non-interleaved basic
block did.

The new implementation only advances the global timeline by
the difference between its current time and the virtual time of
the branch, which requires it to adjust the delay instructions.

Previously, the delay expression was present in the IR twice: once
as the iodelay.Expr transformation-visible form, and once as regular
IR instructions, with the latter form being passed to the delay_mu
builtin and advancing the runtime timeline.

As a result of this change, this strategy is no longer valid:
we can meaningfully mutate the iodelay.Expr form but not the IR
instruction form. Thus, IR instructions are no longer generated for
delay expressions, and the LLVM lowering pass now has to lower
the iodelay.Expr objects as well.

This works OK for flat `with parallel:` expressions, but breaks down
outside of `with parallel:` or when calls are present. The reasons
it breaks down are as follows:

  * Outside of `with parallel:`, delay() and delay_mu() must accept
    any expression, but iodelay.Expr's are not nearly expressive
    enough. So, the IR instruction form must actually be kept as well.

  * A delay instruction is currently inserted after a call to
    a user-defined function; this delay instruction introduces
    a point where basic block reordering is possible as well as
    provides delay information. However, the callee knows nothing
    about the context in which it is called, which means that
    the runtime timeline is advanced twice. So, a new terminator
    instruction must be added that combines the properties of delay
    and call instructions (and another for delay and invoke as well).
 2015-11-21 00:02:47 +08:00
whitequark 88b7990714 transforms.iodelay_estimator: fail statements with indeterminate delay inside `with parallel`. 2015-11-20 17:10:25 +08:00
whitequark 00ec574d73 transforms.interleaver: implement (without inlining). 2015-11-20 00:03:26 +08:00
whitequark b9bb5fba6a lit-test: fix iodelay/class test (broken in 506725f). 2015-11-19 23:28:50 +08:00
whitequark a04d0f8fbd lit-test: fix inferencer/error_class test (broken in b0c6b70). 2015-11-19 23:28:00 +08:00
whitequark e619154c81 transforms.iodelay_estimator: fix handling of `with sequential`. 2015-11-17 01:22:48 +03:00
whitequark 506725f78a transforms.iodelay_estimator: fix handling of methods. 2015-11-17 01:19:22 +03:00
whitequark b0c6b70971 transforms.asttyped_rewriter: fix class redefinition diagnostic. 2015-11-17 01:17:25 +03:00
whitequark 80f0bfe0ad lit-test: add test for iodelay order invariance. 2015-11-17 01:04:20 +03:00
whitequark 3fb12b74d6 lit-test: update to follow IR serialization changes. 2015-11-17 01:04:08 +03:00
whitequark 73c22b0b1e Fix tests. 2015-11-07 15:17:31 +03:00
whitequark e9adfd639e Merge branch 'master' into new-py2llvm 2015-10-14 16:09:57 +03:00
whitequark bd5b324fc2 Merge branch 'master' into new-py2llvm 2015-10-13 19:24:45 +03:00
whitequark 48f1f48f09 transforms.artiq_ir_generator: devirtualize method calls. 2015-10-09 02:27:52 +03:00
whitequark b6c8c9f480 transforms.artiq_ir_generator: add tests for devirtualization. 2015-10-09 01:37:28 +03:00
whitequark 7a6fc3983c Make delay component of function type unifyable. 2015-09-30 18:41:14 +03:00
whitequark 867a0689ad transforms.Inferencer: narrow range() element type. 2015-09-02 17:55:48 -06:00
whitequark b971cc8cdf compiler.{iodelay,transforms.iodelay_estimator}: implement. 2015-09-02 17:55:48 -06:00
whitequark 995245b786 compiler.embedding: default RPC return annotation is -> TNone. 2015-09-01 08:38:38 -06:00
whitequark 501ba912c2 Implement {delay,now,at}{,_mu} and {mu,seconds}_to_{seconds,mu}. 2015-08-31 09:59:33 -06:00
whitequark 9936768603 ARTIQIRGenerator: fix non-nullary method calls. 2015-08-28 02:11:05 -05:00
whitequark 13e612c11b Fix tests. 2015-08-28 00:51:31 -05:00
whitequark 7c1abb25ec compiler.embedding: test all diagnostics. 
Also, unify and improve diagnostic messages.
 2015-08-28 00:47:28 -05:00
whitequark 0e26cfb66e LocalAccessValidator: relax restrictions to accept def f(); def g(). 2015-08-22 13:31:09 -07:00
whitequark 51c591f01a Unbreak tests. 2015-08-18 22:44:09 -07:00
whitequark 6c8de9b6d4 Implement methods. 2015-08-18 22:39:22 -07:00
whitequark 1040a409c3 lit-test: fix tests incorrectly assuming an OutputCheck step. 2015-08-18 15:05:43 -07:00
whitequark 94a2d5f5fa Implement class attribute access through instances. 2015-08-15 11:07:54 -04:00
whitequark 00efc8c636 Implement class definitions and class attribute access. 2015-08-15 09:45:16 -04:00
whitequark 786fde827a Unbreak tests. 2015-08-11 00:41:31 +03:00
whitequark 2cd25f85bf Rename artiq.compiler.testbench.{module → signature}. 2015-07-29 14:32:34 +03:00
whitequark edffb40ef2 On uncaught exception, execute finally clauses and collect backtrace. 2015-07-27 13:51:24 +03:00
whitequark 2939d4f0f3 Add tests for finally clause and reraising. 2015-07-27 12:36:21 +03:00
whitequark a83e7e2248 Add tests for exceptional control flow. 2015-07-27 10:22:28 +03:00
whitequark 90be44c596 Add tests for non-exceptional control flow across finally. 2015-07-27 10:13:22 +03:00
whitequark 7c77dd317a Implement __artiq_personality. 2015-07-27 09:10:20 +03:00
whitequark bb5fe60137 Implement exception raising. 2015-07-27 05:46:43 +03:00
whitequark 47f13bf921 Always load the personality library in JIT testbench, if available. 2015-07-27 04:44:40 +03:00
whitequark 14c7b15785 Add a test harness for exceptions. 
The libunwind.h is duplicated here so that it would be possible
to test the Python parts without pulling in misoc.
 2015-07-27 04:18:12 +03:00
whitequark 862ac1f90d lit-test/compiler -> lit-test/test. 
Other directories in lit-test will host various parts of
the test harness.
 2015-07-27 04:13:29 +03:00