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
4a093b9eba
Add li and mr pseudoinstructions.
2016-10-18 00:21:32 +02:00
David Given
5f0164db62
Bolt mcg into the PowerPC backend. It doesn't build yet, but it is generating
...
*some* code.
2016-10-17 00:06:06 +02:00
David Given
d539389e81
Merge in the unfinished PowerPC branch.
2016-10-16 22:38:27 +02:00
David Given
1e17921208
Implement saving of dirty registers onto the stack.
2016-10-16 22:37:42 +02:00
David Given
6a23906ad8
Various bits of cleanup; we should almost be ready to try sending this to the
...
assembler soon...
2016-10-15 23:39:38 +02:00
David Given
286435a2ed
Oops, forgot to add the output option spec to the string!
2016-10-15 23:34:54 +02:00
David Given
b36897c299
References to the stack frame are now rendered properly.
2016-10-15 23:33:30 +02:00
David Given
a8ee82d197
Stop passing proc around, and use a global instead --- much cleaner.
2016-10-15 23:19:44 +02:00
David Given
7aa60a6451
Register spilling to the stack frame works, more or less.
2016-10-15 22:53:56 +02:00
David Given
0eb32e7553
Fix yet another bug to do with IR register outputs.
2016-10-15 19:14:25 +02:00
David Given
9504aec2bd
Function termination gets routed through an exit block; we now have prologues
...
and epilogues. mcgg now exports some useful data as headers. Start factoring
out some of the architecture-specific bits into an architecture-specific file.
2016-10-15 18:38:46 +02:00
David Given
5ad3aa8595
Add a pile of new instructions used by Pascal; I'm going to need to think about
...
how locals and the local base are handled.
2016-10-15 13:07:59 +02:00
David Given
358c44de35
Bytes were sometimes failing to be sign extended correctly.
2016-10-15 12:11:40 +02:00
David Given
517120d0fb
Allow asm names for registers which are different from the friendly names shown
...
in the tracing (because PowerPC register names are just numbers).
2016-10-15 11:42:47 +02:00
David Given
b2ddf12473
Some more opcodes.
2016-10-15 11:22:40 +02:00
David Given
bb17aea73a
You can now mark a register as corrupting a certain register class; calls work,
...
or at least look like they work. The bad news is that the register allocator
has a rare talent for putting things in the wrong register.
2016-10-15 01:15:08 +02:00
David Given
886adb86d7
Log empty hops.
2016-10-14 23:19:25 +02:00
David Given
4f2177e41f
Reworked loads and stores; it's now *different*, maybe not better.
2016-10-14 23:19:02 +02:00
David Given
a63052427e
Factor out the register allocation routines to make them easier to deal with.
2016-10-14 23:17:06 +02:00
David Given
bb53a7fb51
Fix stupid issue where hop output registers were being overwritten, leading to
...
invalid SSA form.
2016-10-14 23:12:29 +02:00
David Given
98fe70a7de
Output register equality constraints work.
2016-10-14 22:17:02 +02:00
David Given
216ff5cc43
Make loads and stores in the table nicer; fix a place where it looked like it
...
was working but only accidentally.
2016-10-12 23:12:53 +02:00
David Given
f06b51c981
Keep track of register types as well as attributes --- the type being how we
...
find new registers when evicting values. Input constraints work (they were
being ignored before). Various bug fixing so they actually work.
2016-10-12 22:58:46 +02:00
David Given
4723a1442f
Add code to remove unused phis, converting to pruned SSA form, to avoid
...
confusing the register allocator later.
2016-10-12 21:50:12 +02:00
David Given
df239b3f90
Don't allow the same IR to be added to the sequence list more than once
...
(sometimes happens because op_dup, but makes no sense).
2016-10-12 00:45:36 +02:00
David Given
96dffd2007
Clean up the allocator a bit, in preparation for making it lots more
...
complicated; no semantic changes.
2016-10-11 23:17:30 +02:00
David Given
668cccdff1
A few more opcodes.
2016-10-11 00:29:18 +02:00
David Given
2be1c51885
A little fiddling with store instructions. The PowerPC is not friendly to
...
iburg.
2016-10-11 00:23:35 +02:00
David Given
e93c58dc8d
Refactored the way hops are rendered; add support for emitting code (although
...
with no prologue or epilogue yet).
2016-10-11 00:12:11 +02:00
David Given
92bd1ac5f4
Register allocator now gets all the way through all of my test file without
...
crashing (albeit with register moves and swaps stubbed out). Correct code? Who
knows.
2016-10-10 23:19:46 +02:00
David Given
a4d06d1795
D'oh, need multiple passes over the edge splitter in order to properly find all
...
cases.
2016-10-10 23:18:37 +02:00
David Given
fac12aae32
Calculate phi congruency groups; use them to solve the
...
importing-hreg-from-the-future problem (probably poorly).
2016-10-09 22:04:20 +02:00
David Given
23c3575f0f
The register allocator now makes a spirited attempt to honour register
...
attributes when allocating. Unfortunately, backward edges don't work (because
the limited def-use chain stuff doesn't work across basic blocks). Needs more
thought.
2016-10-09 15:09:34 +02:00
David Given
38de688c5a
Floating point promotion was broken since the IR float change. Fix.
2016-10-09 15:08:03 +02:00
David Given
36cddd6afb
Add some more opcodes; rearrange the registers to be more PowerPC-friendly.
2016-10-09 14:45:13 +02:00
David Given
cfe5312fcc
Predicates can now take numeric arguments. The PowerPC predicates have been
...
turned into generic ones (as they'll be useful everywhere). Node arguments for
predicates require the '%' prefix for consistency. Hex numbers are permitted.
2016-10-09 12:32:36 +02:00
David Given
d75cc0a663
Basic register allocation works!
2016-10-08 23:32:54 +02:00
David Given
637aeed70a
Only allocate an output vreg if the instruction actually wants one.
2016-10-08 12:15:21 +02:00
David Given
2198db69b1
Instruction predicates work now.
2016-10-08 11:35:33 +02:00
David Given
9ebf731335
Minor cleanup.
2016-10-08 11:07:28 +02:00
David Given
9db902314b
Fix bug where pushes were being placed in the wrong blocks.
2016-10-08 10:21:24 +02:00
David Given
4e49830e09
Overhaul of everything phi related; critical edge splitting now happens before
...
anything SSA happens; liveness calculations now look like they might be
working.
2016-10-08 00:21:23 +02:00
David Given
ee93389c5f
Refactor the cfg and dominance stuff to make it a lot nicer.
2016-10-06 21:34:21 +02:00
David Given
d20b63dc94
The register allocator is really a pass, so arrange the code like one.
2016-10-05 23:55:38 +02:00
David Given
87e004e4a9
Warning fix.
2016-10-05 23:55:04 +02:00
