Commit Graph

10731 Commits

Author SHA1 Message Date
Angus Holder
bb0246c8c1 Verify that all predecessors to an EBB are valid branches, and have the EBB recorded as a successor. 2017-03-20 08:41:11 -07:00
Angus Holder
8b300a9efb Verify that values are defined by an EBB/instruction that dominates the instruction that uses them. 2017-03-20 08:41:11 -07:00
Angus Holder
c596ea1ac1 Verify that values are defined by an EBB/instruction that dominates the instruction that uses them. 2017-03-20 08:41:11 -07:00
Angus Holder
c50bf2aa68 Verify that values have a valid reference to either an instruction inserted in an EBB, or an EBB inserted in the layout. 2017-03-20 08:41:11 -07:00
Angus Holder
298cf2ed21 Verify that values have a valid reference to either an instruction inserted in an EBB, or an EBB inserted in the layout. 2017-03-20 08:41:11 -07:00
Jakob Stoklund Olesen
f15651132b Fix a bug in analyze_call().
The call arguments on call_indirect should not include the fixed callee
argument.

Add legalizer assertions to verify that signatures are actually valid
after legalization. If not, we would get infinite legalizer loops.
2017-03-17 12:34:03 -07:00
Jakob Stoklund Olesen
e83cccb6fc Fix a bug in analyze_call().
The call arguments on call_indirect should not include the fixed callee
argument.

Add legalizer assertions to verify that signatures are actually valid
after legalization. If not, we would get infinite legalizer loops.
2017-03-17 12:34:03 -07:00
Jakob Stoklund Olesen
d881ed331b Legalize return values from call instructions.
Like the entry block arguments, the return values from a call
instruction need to be converted back from their ABI representation.

Add tests of call instruction legalization.
2017-03-17 11:03:32 -07:00
Jakob Stoklund Olesen
a8a7cebe8c Legalize return values from call instructions.
Like the entry block arguments, the return values from a call
instruction need to be converted back from their ABI representation.

Add tests of call instruction legalization.
2017-03-17 11:03:32 -07:00
Jakob Stoklund Olesen
56d12b14ff Add attach_secondary_result and append_secondary_result.
These low-level functions allow us to build up a list of instruction
results incrementally. They are equivalent to the existing
attach_ebb_arg and append_ebb_arg.
2017-03-17 10:07:32 -07:00
Jakob Stoklund Olesen
6549065491 Add attach_secondary_result and append_secondary_result.
These low-level functions allow us to build up a list of instruction
results incrementally. They are equivalent to the existing
attach_ebb_arg and append_ebb_arg.
2017-03-17 10:07:32 -07:00
Jakob Stoklund Olesen
6dc11d1267 Use a closure to control the convert_from_abi() function.
This will be used for converting function return types soon, so
generalize it a bit.
2017-03-17 10:07:32 -07:00
Jakob Stoklund Olesen
a36160aa20 Use a closure to control the convert_from_abi() function.
This will be used for converting function return types soon, so
generalize it a bit.
2017-03-17 10:07:32 -07:00
Jakob Stoklund Olesen
4964502782 Break out differently purposed tests from abi.cton.
- abi.cton is for testing the actual RISC-V ABI.
- legalize-abi.cton is for testing the legalizer around ABI boundaries.
- parse-encoding.cton is for testing the parser's handling of RISC-V
  encoding and register annotations.
2017-03-17 10:07:32 -07:00
Jakob Stoklund Olesen
e4a83c8063 Break out differently purposed tests from abi.cton.
- abi.cton is for testing the actual RISC-V ABI.
- legalize-abi.cton is for testing the legalizer around ABI boundaries.
- parse-encoding.cton is for testing the parser's handling of RISC-V
  encoding and register annotations.
2017-03-17 10:07:32 -07:00
Jakob Stoklund Olesen
e90e59cedb Add DataFlowGraph::redefine_first_value()
This makes it possible to compute the first result of an instruction in
a different way without overwriting the original instruction with
replace().
2017-03-16 13:10:12 -07:00
Jakob Stoklund Olesen
578fec90cd Add DataFlowGraph::redefine_first_value()
This makes it possible to compute the first result of an instruction in
a different way without overwriting the original instruction with
replace().
2017-03-16 13:10:12 -07:00
Jakob Stoklund Olesen
2119c85224 Don't return a Values iterator from detach_secondary_results().
Instead, just return the first of the detached values, and provide a
next_secondary_result() method for traversing the list.

This is equivalent to how detach_ebb_args() works, and it allows the
data flow graph to be modified while traversing the list of results.
2017-03-15 15:38:47 -07:00
Jakob Stoklund Olesen
89f45a5c82 Don't return a Values iterator from detach_secondary_results().
Instead, just return the first of the detached values, and provide a
next_secondary_result() method for traversing the list.

This is equivalent to how detach_ebb_args() works, and it allows the
data flow graph to be modified while traversing the list of results.
2017-03-15 15:38:47 -07:00
Jakob Stoklund Olesen
db5aead1a5 Rename take_ebb_args to detach_ebb_args()
This better matches the detach_secondary_results cousin.

Also rename the converse put_ebb_arg -> attach_ebb_arg.
2017-03-15 15:21:57 -07:00
Jakob Stoklund Olesen
765c866971 Rename take_ebb_args to detach_ebb_args()
This better matches the detach_secondary_results cousin.

Also rename the converse put_ebb_arg -> attach_ebb_arg.
2017-03-15 15:21:57 -07:00
Jakob Stoklund Olesen
d15f25844a Legalize ABI arguments to call and return instructions.
The type signatures of functions can change when they are legalized for
a specific ABI. This means that all call and return instructions need to
be rewritten to use the correct arguments.

- Fix arguments to call instructions.
- Fix arguments to return instructions.

TBD:

- Fix return values from call instructions.
2017-03-15 14:35:22 -07:00
Jakob Stoklund Olesen
28153c97ea Legalize ABI arguments to call and return instructions.
The type signatures of functions can change when they are legalized for
a specific ABI. This means that all call and return instructions need to
be rewritten to use the correct arguments.

- Fix arguments to call instructions.
- Fix arguments to return instructions.

TBD:

- Fix return values from call instructions.
2017-03-15 14:35:22 -07:00
Jakob Stoklund Olesen
01cb51ece9 Add DataFlowGraph::display_inst().
This method returns an object that can display an instruction in the
standard textual format, but without any encoding annotations.
2017-03-15 13:52:45 -07:00
Jakob Stoklund Olesen
aa400d46ec Add DataFlowGraph::display_inst().
This method returns an object that can display an instruction in the
standard textual format, but without any encoding annotations.
2017-03-15 13:52:45 -07:00
Jakob Stoklund Olesen
9549cf603c Add a primitive debug tracing facility.
When the CRETONNE_DBG environment variable is set, send debug messages
to a file named cretonne.dbg.*.

The trace facility is only enabled when debug assertions are on.
2017-03-15 11:32:01 -07:00
Jakob Stoklund Olesen
210530da9c Add a primitive debug tracing facility.
When the CRETONNE_DBG environment variable is set, send debug messages
to a file named cretonne.dbg.*.

The trace facility is only enabled when debug assertions are on.
2017-03-15 11:32:01 -07:00
Jakob Stoklund Olesen
d604855b27 Fix logic bug in requires_typevar_operand.
The Python code computing this property had a bug. The property has only
been used for optimizing the ctrl_typevar() method so far.
2017-03-14 13:32:15 -07:00
Jakob Stoklund Olesen
d86854b286 Fix logic bug in requires_typevar_operand.
The Python code computing this property had a bug. The property has only
been used for optimizing the ctrl_typevar() method so far.
2017-03-14 13:32:15 -07:00
Jakob Stoklund Olesen
7db4b1b73a Add OpcodeConstraints::fixed_value_arguments()
Now that some instruction formats put all of their value arguments in a
value list, we need to know how many value are fixed and how many are
variable_args.

CC @angusholder who may need this information in the verifier.
2017-03-14 13:24:49 -07:00
Jakob Stoklund Olesen
b4b913cc54 Add OpcodeConstraints::fixed_value_arguments()
Now that some instruction formats put all of their value arguments in a
value list, we need to know how many value are fixed and how many are
variable_args.

CC @angusholder who may need this information in the verifier.
2017-03-14 13:24:49 -07:00
Keith Yeung
98e8a96412 Add unit test for value aliasing 2017-03-14 11:56:09 -07:00
Keith Yeung
c190884bca Add unit test for value aliasing 2017-03-14 11:56:09 -07:00
Keith Yeung
f18eddc9ed Allow type inference to go through value aliasing 2017-03-14 11:56:09 -07:00
Keith Yeung
c6f8bfff0b Allow type inference to go through value aliasing 2017-03-14 11:56:09 -07:00
Keith Yeung
d93c37a826 Make value aliases during references rewriting 2017-03-14 11:56:09 -07:00
Keith Yeung
e1d17b2acf Make value aliases during references rewriting 2017-03-14 11:56:09 -07:00
Keith Yeung
8e38c7907d Create alias HashMap in parser context 2017-03-14 11:56:09 -07:00
Keith Yeung
a18ad5a306 Create alias HashMap in parser context 2017-03-14 11:56:09 -07:00
Keith Yeung
50e043477e Parse instruction results separately from instructions 2017-03-14 11:56:09 -07:00
Keith Yeung
ce1ad37863 Parse instruction results separately from instructions 2017-03-14 11:56:09 -07:00
Jakob Stoklund Olesen
010861d58e Upgrade to rustfmt 0.8.0.
Lots of changes this time.

Worked around what looks like a rustfmt bug in parse_inst_operands where
a large match was nested inside Ok().
2017-03-14 10:48:05 -07:00
Jakob Stoklund Olesen
32709a56ca Upgrade to rustfmt 0.8.0.
Lots of changes this time.

Worked around what looks like a rustfmt bug in parse_inst_operands where
a large match was nested inside Ok().
2017-03-14 10:48:05 -07:00
Angus Holder
477fb4d5da Expanded instruction integrity checking in the verifier, now verifying result types and entity references. 2017-03-14 09:12:33 -07:00
Angus Holder
849f3f3e9b Expanded instruction integrity checking in the verifier, now verifying result types and entity references. 2017-03-14 09:12:33 -07:00
Jakob Stoklund Olesen
d3df198747 Add a grow_at() method to EntityList.
This method opens up a hole in the middle of a list where new elements
can be written.
2017-03-13 16:37:48 -07:00
Jakob Stoklund Olesen
d9a0c0d056 Add a grow_at() method to EntityList.
This method opens up a hole in the middle of a list where new elements
can be written.
2017-03-13 16:37:48 -07:00
Jakob Stoklund Olesen
1baedc3ca5 Add take_value_list and put_value_list methods.
Any code that needs to manipulate a variable argument list on an
instruction will need to remove the instruction's value list first,
change the list, and then put it back on the instruction. This is
required to avoid fighting the borrow checker over mutable locks on the
DataFlowGraph and its value list pool.

Add a generated InstructionData::take_value_list() method which lifts
out and existing value list and returns it, levaing an empty list in its
place, like Option::take() does it.

Add a generated InstructionData::put_value_list() which puts it back,
verifying that no existing value list is overwritten.
2017-03-13 14:07:14 -07:00
Jakob Stoklund Olesen
5f2e37e05c Add take_value_list and put_value_list methods.
Any code that needs to manipulate a variable argument list on an
instruction will need to remove the instruction's value list first,
change the list, and then put it back on the instruction. This is
required to avoid fighting the borrow checker over mutable locks on the
DataFlowGraph and its value list pool.

Add a generated InstructionData::take_value_list() method which lifts
out and existing value list and returns it, levaing an empty list in its
place, like Option::take() does it.

Add a generated InstructionData::put_value_list() which puts it back,
verifying that no existing value list is overwritten.
2017-03-13 14:07:14 -07:00
Angus Holder
1e1a1a8797 Added ControlFlowGraph::recompute_ebb for incremental CFG updates. 2017-03-13 09:01:13 -07:00