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2631 commits

Author SHA1 Message Date
Bill Currie
3c2f6c8447 [qfcc] Simplify flow_analyize_pointer_operand 
and its usage. The parts of flow_analyze_statement that use it know
where the returned operand needs to go. Unfortunately, this breaks dags
pretty hard, but that's because dags needs to learn about the fancy
assignment-type statements.
 2020-03-17 21:30:16 +09:00
Bill Currie
dec2e6249e [qfcc] Increase flow operand count to 5 
MOVEP instructions have up to 5 operands: 2 pointers, the count, and 0-2
referenced variables (when known).
 2020-03-17 21:24:12 +09:00
Bill Currie
fa2cbc72d8 [qfcc] Analyze tempop pointers in move/memset statements 2020-03-17 15:48:06 +09:00
Bill Currie
6ec92fb83b [qfcc] Point pointer tempop to the operand 
It turns out I need the operand itself, not just the tempop.
 2020-03-17 15:47:42 +09:00
Bill Currie
0de011d0bf [qfcc] Add some disabled additional statement info 
It's a bit cluttered for normal debugging, but I haven't decided how to
make it optional just yet.
 2020-03-17 15:23:24 +09:00
Bill Currie
c5cbe83f71 [qfcc] Initialize statement numbers to -1 
This is to indicate the statement has not yet been flow analyzed.
 2020-03-17 15:05:58 +09:00
Bill Currie
d02a01c282 [qfcc] Make tempop pointer strings more informative 
Now that the address of a tempop can be taken, their op strings need to
be visible.
 2020-03-17 15:05:58 +09:00
Bill Currie
441e7b99bc [qfcc] Correctly implement pointer arithmetic 2020-03-17 13:39:22 +09:00
Bill Currie
c5400c4581 [qfcc] Make anonstruct test robust against pointer math 
I noticed that pointer math is currently incorrect in qfcc, but it would
be nice for fixing it to not break anonstruct since it is testing
something else.
 2020-03-17 12:16:24 +09:00
Bill Currie
0d784d9ef4 [qfcc] Rework address expr calculation 
This removes a bogus lea from the instruction stream (and there can be
many such).
 2020-03-17 12:13:09 +09:00
Bill Currie
0d751dcdc5 [qfcc] Improve robustness of do_op_integer 2020-03-17 12:12:06 +09:00
Bill Currie
9cb3ee01d6 [qfcc] Add pointer value check 
Extraction is a little more complicated, though, so undecided on that.
 2020-03-17 11:19:12 +09:00
Bill Currie
c3f04384d5 [qfcc] Make a general integral value extractor 
All too often I just want the value.
 2020-03-17 11:18:37 +09:00
Bill Currie
80967e1471 [qfcc] Support def exprs in integral value extractors 2020-03-17 10:56:45 +09:00
Bill Currie
e4a403bbb3 [qfcc] Improve integral value extraction readability 2020-03-17 10:55:27 +09:00
Bill Currie
888192a9ea [qfcc] Resurrect ex_def expression type 
It turns out to be useful still as using symbol expressions isn't always
appropriate and the workarounds were getting nasty.
 2020-03-17 01:42:46 +09:00
Bill Currie
fd06cd2b00 [qfcc] Analyze assignment through const pointers 
This fixes a false-positive uninitialized warning.
 2020-03-17 01:40:35 +09:00
Bill Currie
8e6baf1bde [qfcc] Fix assigning to entity fields 
At least for basic types. Compound types need testing.
 2020-03-17 01:39:35 +09:00
Bill Currie
f9face0cef [qfcc] Make is_indirect easier to read 2020-03-16 23:26:39 +09:00
Bill Currie
5c0c056e2c [qfcc] Add is_entity type test helper 2020-03-16 21:07:31 +09:00
Bill Currie
ede7dd6d7e [qfcc] Catch attempts to emit a bad operand type 2020-03-16 20:31:21 +09:00
Bill Currie
1d10136f2e [qfcc] Treat all dereferences and indirect 
Why I had a const pointer test on there is beyond me.
 2020-03-16 20:24:22 +09:00
Bill Currie
69924fe717 [qfcc] Return correct value for is_const_ptr 
It really helps if the logic is not inverted.
 2020-03-16 20:21:07 +09:00
Bill Currie
db06300ddd [qfcc] Make print_operand usable from gdb 
It not emitting a \n made life difficult, especially whenever gdb
decided to make access to printf or puts awkward.
 2020-03-16 20:20:07 +09:00
Bill Currie
c8e45c6cfc [qfcc] Use operand_address in expr_deref 
This fixes the technically correct but horrible mess of temps and
addressing when dealing with ivars, and the resulting uninitialized
temps due to the non-constant pointers (do need statement level constant
folding, though).
 2020-03-16 14:24:48 +09:00
Bill Currie
b58deb5680 [qfcc] Rewrite operand_address to be much simpler 
It now creates a pointer value and returns that rather than generating
an address statement.
 2020-03-16 14:24:47 +09:00
Bill Currie
a0c28a5ac5 [qfcc] Support pointers to temp operands 
This is necessary for correctly taking the address of operands.
 2020-03-16 14:24:47 +09:00
Bill Currie
2f07d9a310 [qfcc] Improve accuracy of some more diagnostics 2020-03-16 10:42:18 +09:00
Bill Currie
0fe3fda44d [qfcc] Fix protocol adorned id as message receiver 
This took a bit as type_id has no class data, only protocols attached to
the type_obj_object instance, and then protocol lists can get deep.
 2020-03-16 10:42:18 +09:00
Bill Currie
ea042cf87a [qfcc] Split out the obj-qc specific expr code 2020-03-16 10:34:16 +09:00
Bill Currie
fb33a7f2a7 [qfcc] Remove "impossible" code 
It is not possible to adorn Class with protocols, so no need to check
for them when checking if a type is a class.
 2020-03-16 10:34:16 +09:00
Bill Currie
e1140d476a [qfcc] Handle syntax errors in method protos 2020-03-15 16:19:45 +09:00
Bill Currie
968de155a1 [qfcc] Make some counts unsigned 
How do you have -1 def?
 2020-03-15 01:33:25 +09:00
Bill Currie
9a08a51ebd [qfcc] Ensure progs defs are sorted by address 2020-03-15 01:32:38 +09:00
Bill Currie
067bc264fa [qfcc] Set local def size in debug sym file 
It was getting random garbage. Not good for debuggers.
 2020-03-14 22:08:27 +09:00
Bill Currie
20fd5eb80c [qfcc] Show def size when dumping defs 2020-03-14 22:07:36 +09:00
Bill Currie
327d692992 [qfcc] Correct order of @zero fields 
This is part of what messed up float_val in the encoding for @params.
The other part is something in the linker type encoding merge code: it
may be too aggressive. It's also what messed up the size of @params.
 2020-03-14 22:06:57 +09:00
Bill Currie
72f4b8ccb5 [qfcc] Give address operands a good expression 
That is, those created by operand_address. The dag code needs the
expression that is attached to the statement to have the correct
expression type in order to do the right thing with the operands and
aliasing, especially when generating temps. This fixes assignchain when
optimizing (all tests pass again).
 2020-03-14 19:26:47 +09:00
Bill Currie
025dd63493 [qfcc] Bubble right-hand assignee back up chain 
This fixes assignchain when not optimizing. There are problems in dags,
though, with address expressions.
 2020-03-14 17:48:53 +09:00
Bill Currie
97e0c23529 [qfcc] Create a nil operand 
This is for struct assignments so they can pass the source operand back
up the assignment chain.
 2020-03-14 17:47:23 +09:00
Bill Currie
eca976e5ae [qfcc] Expose l-value checking 
Needed for assignment chains.
 2020-03-14 17:45:54 +09:00
Bill Currie
7d5644e055 [qfcc] Save operand creator return address 2020-03-14 17:44:54 +09:00
Bill Currie
51a30de9c5 [qfcc] Print accurate linenos for more ICEs 2020-03-14 16:51:54 +09:00
Bill Currie
6608c8a1f6 Revert "Support taking the address of block expressions that have a result." 
This reverts commit c78d15b331.

While a block expression's result may be an l-value, block expressions
are not (and their results may not be), thus taking the address of one
is not really correct. It seems the only place that tries to do so is
the assignment code when dealing with structures.
 2020-03-14 13:14:25 +09:00
Bill Currie
277ff719f5 Revert "Do not lose the block expression when taking its address." 
This reverts commit b49d90e769.

I suspect this was a workaround for the mess in assignment chains.
However, it caused compile errors with the new implementation, and is
just bogus anyway.
 2020-03-14 12:30:18 +09:00
Bill Currie
7cc51c9ca3 [qfcc] Save block expression creator's address 
I've already found the bug that necessitated it (and the creator was
innocent), but it will help later.
 2020-03-14 12:27:23 +09:00
Bill Currie
d30c895c13 [qfcc] Use correct assignment statement type 
Just another minor detail lost in the assignment rewrite. With this, all
tests pass when optimizing.
 2020-03-14 11:36:42 +09:00
Bill Currie
a98f0e04eb [qfcc] Correct some misinformative prints 2020-03-14 01:28:00 +09:00
Bill Currie
b1459ac816 [qfcc] Move return save temp into call block 
This fixes func-expr after the assignment rewrite. Now all tests pass
when not optimizing (something not quite right in assignchain when
optimizing).
 2020-03-14 01:24:13 +09:00
Bill Currie
57134e01cd [qfcc] Handle l-value pointer dereferences again 
While I still hate ".=", at least it's more hidden, and the new
implementation is a fair bit cleaner (hah, goto a label in an if (0) {}
block).

Most importantly, the expression tree code knows nothing about it. Now
just to figure out what broke func-epxr. A bit of whack-a-mole, but yay
for automated tests.
 2020-03-14 01:04:05 +09:00