David Given
7710c76d56
Introduce sequence points before store instructions to prevent loads from the
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same address being delayed until after the store (at which point they'll return
the wrong value).
2017-01-07 13:17:39 +01:00
David Given
fbd6e8f63d
Add support for consecutive labels; needed by the B compiler.
2016-11-27 21:18:00 +01:00
David Given
953c08839f
inn works now; add a helper for it.
2016-11-20 12:53:44 +01:00
David Given
196fa914b3
lxa now works, I hope; traps are better (and stubbed out on qemuppc).
2016-11-20 11:57:21 +01:00
David Given
d5328492d7
Better handling of float conversions; more tests; converting to unsigned ints
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works now.
2016-11-20 11:27:40 +01:00
David Given
cc660b230f
Floats and doubles are now written out correctly.
2016-11-19 11:39:13 +01:00
David Given
d31bc6a3f9
Made csa and csb work with mcg; adjust the libem functions and the
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corresponding invocation in the ncg table so the same helpers can be used for
both mcg and ncg. Add a new IR opcode, FARJUMP, which jumps to a helper
function but saves volatile registers.
2016-11-19 10:55:41 +01:00
David Given
43439c6d0c
Remember to push the result of lor onto the stack.
2016-11-17 22:04:32 +01:00
David Given
81bc2c74c5
A bb's regsin are no longer the same as those of its first instruction;
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occasionally the first hop of a block would try to rearrange its registers (due
to evicted throughs), resulting in the phi moves copying values into the wrong
registers.
2016-11-16 20:52:15 +01:00
David Given
581fa4a457
Reenable eviction of corrupted registers, which had been broken by a previous
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change. Change the register move code to get swaps right, or at least righter.
2016-11-15 21:55:10 +01:00
David Given
0289b1004e
Allow values left on the stack at the end of the procedure (it's legal!).
2016-11-14 21:47:49 +01:00
David Given
852d3a691d
Update the table to return call output values in the right registers. Fix the
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register allocator so the corrupted registers only apply to throughs
(otherwise, you can't put output registers in corrupted registers).
2016-11-11 21:48:36 +01:00
David Given
b5c1d622f5
Rework the way stack frames are laid out to be simpler and, hopefully, more
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correct. Saved registers are now placed in what may be the right place.
2016-11-11 21:17:45 +01:00
David Given
4fa2c94a4a
Correctly mangle labels used in initialisers.
2016-10-31 23:21:33 +01:00
David Given
e19850b114
Fix a few c11isms.
2016-10-30 16:51:06 +01:00
David Given
ca5b6e07bb
Properly export symbols.
2016-10-29 23:52:17 +02:00
David Given
8c3670483f
Get top working with the PowerPC; use it to eliminate useless branches and
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moves.
2016-10-29 23:37:11 +02:00
David Given
a311e61360
Add support for preserved registers.
2016-10-29 20:22:44 +02:00
David Given
e3ebf986e9
More opcodes.
2016-10-29 13:32:09 +02:00
David Given
acaae765af
Emit negative constants correctly.
2016-10-29 12:55:21 +02:00
David Given
61349389fb
More opcodes. sti can now cope with non-standard sizes (really need a better
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fix for this). Hack in crude support for mismatched stack pushes and pops (ints
vs longs).
2016-10-29 12:48:05 +02:00
David Given
2cc2c0ae98
Lots more opcodes. Rearrange the stack layout so that fp->ab is a fixed value
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(needed for CHAINFP and FPTOAB). Wire up lfrs to calls via a phi when
necessary, to allow call-bra-lfr chains.
2016-10-29 11:57:56 +02:00
David Given
bfa65168e2
Don't generate phis if unnecessary (because this breaks the
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critical-edge-splitting guarantee and causes insertion of phi copies to fail).
2016-10-29 10:55:48 +02:00
David Given
658db4ba71
Mangle label names (turns out that the ACK assembler can't really cope with
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labels that are the same name as instructions...).
2016-10-27 23:17:16 +02:00
David Given
81525c0f2c
Swaps work (at least for registers). More opcodes. Rearrange the stack layout
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so we can always trivially find fp, which lets CHAINFP work.
2016-10-27 21:50:58 +02:00
David Given
be3dece5af
Allow emission of strings containing ".
2016-10-27 21:48:46 +02:00
David Given
51bd3ee4dd
Fix bug where some phis weren't being inserted when a given variable definition
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needed more than one phi (due to the dominance frontier containing more than
one basic block).
2016-10-27 21:40:25 +02:00
David Given
9977ce841a
Remove the bytes1, bytes2, bytes4, bytes8 attributes; remove the concept of a
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register 'type'; now use int/float/long/double throughout to identify
registers. Lots of register allocator tweaks and table bugfixes --- we now get
through the dreading Mathlib.mod!
2016-10-25 23:04:20 +02:00
David Given
45a7f2e993
Phi copies are now inserted as part of type inference. More opcodes.
2016-10-24 22:14:08 +02:00
David Given
111c13e253
More opcodes.
2016-10-24 20:15:22 +02:00
David Given
a4644dee4d
More opcodes.
2016-10-24 12:08:40 +02:00
David Given
b22780c075
More opcodes, including the difficult and fairly stupid los/sts.
2016-10-23 22:24:08 +02:00
David Given
abd0cedd61
Massive change to how IR types are handled; we use the type code for matching
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rather than the size. Much cleaner and simpler.
2016-10-23 21:54:14 +02:00
David Given
b1a3d76d6f
Re-re-add the type inference layer, now I know more about how things work.
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Remove that terrible float promotion code.
2016-10-22 23:04:13 +02:00
David Given
11b0bc1055
More opcodes.
2016-10-22 20:32:51 +02:00
David Given
2d52b1fdaa
Remove GETRET; values are now returned directly by CALL. Fix a bug in
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convertstackops which was resulting in duplicate IR groups.
2016-10-22 12:13:57 +02:00
David Given
ceb938fb3c
More opcodes.
2016-10-22 11:26:28 +02:00
David Given
7ae888b754
Hacky workaround the way the Modula-2 compiler generates non-standard sized
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loads and saves. More opcodes; simplified table using macros.
2016-10-22 10:48:22 +02:00
David Given
90d0661639
Typo fix.
2016-10-22 00:48:55 +02:00
David Given
f851ab83af
Better (and more correct) floating point conversions; fif; various new opcodes.
2016-10-22 00:48:26 +02:00
David Given
d535be87b1
fef4 and fef8 is now cleaner, albeit slower; add some more register alias
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stuff.
2016-10-22 00:02:15 +02:00
David Given
4db402f229
Add (pretty crummy) support for register aliases and static pairs of registers.
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We should have enough functionality now for rather buggy 8-bit ints and
doubles. Rework the table and the platform.c to match.
2016-10-21 23:31:00 +02:00
David Given
e4fec71f9c
Lots more opcodes; better eviction behaviour; better register moves. Lots more
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PowerPC stuff (some working).
2016-10-19 23:29:05 +02:00
David Given
ffb1eabf45
Floating point promotion is less buggy.
2016-10-19 23:27:53 +02:00
David Given
d5071e7df1
Promote values accessed via NOP.
2016-10-18 23:58:03 +02:00
David Given
5413d47029
'!' tracing is now always emitted; tracing goes to stderr.
2016-10-18 22:32:09 +02:00
David Given
3520704ea8
Add support for floating point constants.
2016-10-18 22:29:42 +02:00
David Given
938fb8c2fc
Lots more opcodes.
2016-10-18 00:31:26 +02:00
David Given
5f0164db62
Bolt mcg into the PowerPC backend. It doesn't build yet, but it is generating
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*some* code.
2016-10-17 00:06:06 +02:00
David Given
1e17921208
Implement saving of dirty registers onto the stack.
2016-10-16 22:37:42 +02:00
