Bor Grošelj Simić
3964574a83
implement float -> unsigned casts
...
amd64 lacks instruction for this so it has to be implemented with
float -> signed casts. The approach is borrowed from llvm.
2022-01-28 09:24:15 +01:00
Bor Grošelj Simić
74d022f975
implement unsigned -> float casts
...
amd64 lacks an instruction for this so it has to be implemented with
signed -> float casts:
- Word casting is done by zero-extending the word to a long and then doing
a regular signed cast.
- Long casting is done by dividing by two with correct rounding if the
highest bit is set and casting that to float, then adding
1 to mantissa with integer addition
2022-01-28 09:24:15 +01:00
Eyal Sawady
e91d121581
Add a negation instruction
...
Necessary for floating-point negation, because
`%result = sub 0, %operand` doesn't give the correct sign for 0/-0.
2022-01-23 11:43:59 +01:00
Quentin Carbonneaux
fcdef10dae
make variadic args explicit
...
Some abis, like the riscv one, treat
arguments differently depending on
whether they are variadic or not.
To prepare for the upcomming riscv
target, we change the variadic call
syntax and give meaning to the
location of the '...' marker.
# new syntax
%ret =w call $f(w %regular, ..., w %variadic)
By nature of their abis, the change
is backwards compatible for existing
targets.
2021-10-22 23:53:25 +02:00
Quentin Carbonneaux
5e5e301e86
fix a typo in call's BNF
...
Thanks to Jakob for pointing this out.
2020-08-06 10:34:42 +02:00
Michael Forney
cf9f2e8ef7
doc: Aggregate types can be nested
2019-02-21 09:36:35 +01:00
Michael Forney
fcd55bb441
doc: Include align in data BNF
2019-02-21 09:27:05 +01:00
Quentin Rameau
51c46ba691
Small corrections in documentation
2017-04-26 09:35:05 -04:00
Quentin Carbonneaux
0d77e262a6
documentation update
2017-04-18 10:02:14 -04:00
Quentin Carbonneaux
6fd78ec78f
nits in the documentation
2017-04-08 22:10:02 -04:00
Quentin Carbonneaux
a940cc808e
turn the instruction index into a list
2017-02-22 12:30:44 -05:00
Quentin Rameau
835b2b4910
create an index for the instructions in the IL doc
2017-02-03 09:26:43 -05:00
Quentin Rameau
cec21e6540
create an instruction index for the IL doc
2017-01-20 11:26:37 -05:00
Quentin Rameau
9fbb276e37
change 'b' and 'h' ordering in IL doc
2017-01-20 11:25:46 -05:00
Quentin Carbonneaux
6ed62fe945
doc nits
2016-11-09 22:34:05 -05:00
Quentin Carbonneaux
97d33be074
update documentation with new fp conversions
2016-04-22 15:16:47 -04:00
Quentin Carbonneaux
1c96401f0c
oops fix wrong instruction names in doc
2016-04-21 14:27:15 -04:00
Quentin Carbonneaux
84bb28c042
support calls with no return
...
I thought it would be harder (and maybe it is).
My fear was that a call must be always followed by
a parallel move from machine registers (this is an
assumption in both spill and rega). This however
remains true, because the ABI code generates a
dummy "copy RAX" by accident!
2016-04-20 12:53:42 -04:00
Quentin Carbonneaux
fbbd2252aa
typos in il.txt, thanks Robert Ransom
2016-03-29 17:35:37 -04:00
Quentin Carbonneaux
8ac4af4875
document new shift operations
2016-03-16 11:40:47 -04:00
Quentin Carbonneaux
1b27215003
document exts and truncd
2016-03-15 14:07:13 -04:00
Quentin Carbonneaux
f691d4fb6b
doc is now complete
2016-03-15 13:50:34 -04:00
Quentin Carbonneaux
714c472055
massage Instructions section
2016-03-15 10:44:05 -04:00
Quentin Carbonneaux
15aa877cae
finish the Memory section
2016-03-14 20:52:34 -04:00
Quentin Carbonneaux
69e051ae4e
compactify some instruction lists
2016-03-14 17:07:47 -04:00
Quentin Carbonneaux
68c3b7ba51
start doc on memory instructions
2016-03-14 16:49:32 -04:00
Quentin Carbonneaux
433ab81939
start description of instructions
2016-03-14 16:30:53 -04:00
Quentin Carbonneaux
ffb9e98152
rework the types section
2016-03-13 09:44:46 -04:00
Quentin Carbonneaux
e76a6f7339
less redundancy in il.html
2016-03-13 09:28:39 -04:00
Quentin Carbonneaux
0e89049f01
BNF Syntax becomes Notation
2016-03-11 13:24:55 -05:00
Quentin Carbonneaux
01278dbeca
document constants
2016-03-11 13:22:44 -05:00
Quentin Carbonneaux
5f80243857
style
2016-03-10 16:21:44 -05:00
Quentin Carbonneaux
e616988515
move constant section higher
2016-03-10 16:16:19 -05:00
Quentin Carbonneaux
ff9990ed6f
be more precise
2016-03-10 16:12:04 -05:00
Quentin Carbonneaux
1e6d05e6dd
flesh Control section
2016-03-10 16:06:41 -05:00
Quentin Carbonneaux
00ea8464a0
number Control section
2016-03-09 15:50:09 -05:00
Quentin Carbonneaux
7973a4486f
pheew, more il description
2016-03-09 15:42:28 -05:00
Quentin Carbonneaux
34d97d4102
add links in toc
2016-03-08 21:16:34 -05:00
Quentin Carbonneaux
a5d2c1334f
fix typos in il.txt
2016-03-08 15:50:20 -05:00
Quentin Carbonneaux
1ae7f20cfe
fix indent in BNF block
2016-03-08 14:46:06 -05:00
Quentin Carbonneaux
30f71a43fc
more il description
2016-03-08 11:32:16 -05:00
Quentin Carbonneaux
9b31b1eba2
more il description, pheeew
2016-03-04 14:48:35 -05:00
Quentin Carbonneaux
df151c7440
start il.txt
2016-03-04 10:58:46 -05:00
