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393 Commits

Author SHA1 Message Date
Wilson Snyder 46f8a659b3 Fix shift to remove operation side effects (#4563). 2023-10-14 22:34:37 -04:00
Wilson Snyder 411f563cbe Internals: Remove unneeded pure checks. No functional change. 2023-10-14 22:23:58 -04:00
Ryszard Rozak 5b06c60318
Internals: Change deleteTree to pushDeletep (#4548). No functional change intended. 2023-10-09 09:45:09 -04:00
Wilson Snyder b306715b4a Optimize empty expression statements (#4544). 2023-10-09 05:50:31 -04:00
Wilson Snyder 8d99bdac25 Internals: Move afterCommentp to AstNode. No functional change. 2023-10-09 05:03:57 -04:00
Wilson Snyder 800a789f50 Fix inlining of real functions miscasting (#4543). 2023-10-06 21:33:31 -04:00
Mariusz Glebocki 28bd7e5b19
Rework multithreading handling to separate by code units that use/never use it. (#4228) 2023-09-24 22:12:23 -04:00
Ryszard Rozak 47b3f464a9
Disable conversion of impure logical expressions to bitwise expressions (#487 partial) (#4437) 2023-09-18 09:21:30 -04:00
Wilson Snyder 761adf1cf0 Internals: Add cloneTreePure to prepare for side effect check. 
Use cloneTreePure when what is being cloned must be side-effect free.
Use cloneTree when safe to contain side effects (e.g. cloning module).
 2023-09-16 22:50:54 -04:00
Wilson Snyder 19f7279542 Fix false INFINITELOOP on forever..mailbox.get() (#4323). 2023-09-15 22:05:55 -04:00
Wilson Snyder cdd8953085 Disable Subst when not pure 2023-09-08 21:52:33 -04:00
Ryszard Rozak c40e34b134
Support assignments of stream expressions on queues to packed values (#4458) 2023-09-06 15:25:48 +02:00
Wilson Snyder ad329612fd Internals: Remove unnecessary cloneTree. 2023-09-01 20:13:20 -04:00
Wilson Snyder c324895cbc Internals: Remove unnecessary cloneTree. 2023-09-01 19:49:57 -04:00
Ryszard Rozak 2daa32b98b
Support assignments of packed values to stream expressions on queues (#4401) 2023-08-25 11:24:12 +02:00
Krzysztof Boroński b752faa107
Fix jumping over object initialization (#4411) 2023-08-11 18:28:37 +02:00
Aleksander Kiryk 9249ffdb84
Fix queue slicing (#4329) 2023-07-03 13:55:24 -04:00
Ryszard Rozak b517fb5ee3
Support some stream operations on queues (#4292) 2023-06-13 22:46:42 -04:00
Ryszard Rozak ba82d43ca1
Support for condition operator on class objects (#4214) 2023-05-30 08:59:00 -04:00
Wilson Snyder add68130b8 Internals: Rename to dumpLevel(), to avoid confusion with make-a-dump() 2023-05-03 18:04:10 -04:00
Tudor Timi d9b5680a45
Fix crash caused by $display() optimization (#4165) (#4166) 2023-05-03 17:04:18 -04:00
Geza Lore 0e769d42a1 Optimize trigger evaluation 
Pack the elements of VlTriggerVec as dense bits (instead of a 1 byte
bool per bit), and check whether they are set on a word granularity.
This effectively transforms conditions of the form `if (trig.at(0) |
trig.at(2) | trig.at(64))` into `if (trig.word(0) & 0x5 | trig.word(1) &
0x1)`. This improves OpenTitan ST by about 1%, worth more on some other
designs.
 2023-04-24 09:09:36 +02:00
Wilson Snyder 05660d1118 Add CONSTRAINTIGN warning when constraint ignored. Likewise ignore constraint_mode, rand_mode. 2023-04-05 21:27:37 -04:00
Yutetsu TAKATSUKASA d4107dce52
Improve xor tree optimization (#4071) 
* AstNot does not have to be frozen in an xor tree during BitOp tree optimization.

* Tests: Update stats.
 2023-03-26 20:36:32 +09:00
Yutetsu TAKATSUKASA 990b19e048
Fix incorrect optimization of bit op tree (#4059) (#4070) 2023-03-26 03:29:10 -04:00
github action 71a37484f5 Apply 'make format' 2023-03-21 08:43:31 +00:00
Jesse Taube daf157e6c0
Fix false LATCH warning on --assert 'unique else if' (#4033) (#4054). 2023-03-21 04:42:19 -04:00
Wilson Snyder f2aac8c49a Internals: Use VNVisitorConst where possible, for better performance. No functional change indended. 2023-03-18 12:23:17 -04:00
Wilson Snyder d6c5d40f9b Internals: Add VNVisitorConst class. 2023-03-17 19:59:09 -04:00
Wilson Snyder 85fd88ace2 Optimize duplicate JumpBlocks away (#4028) 2023-03-16 22:29:06 -04:00
Ryszard Rozak 2c60c5f816
Support recursive methods (#3987) 2023-03-01 21:07:37 -05:00
Krzysztof Boroński 06661ab676
Disallow ++/-- over expressions with potential side effects (#3976). 2023-02-28 15:21:58 -05:00
Wilson Snyder 5aa4f46101 Internals: Add some std::. No functional change intended. 2023-02-10 20:32:39 -05:00
Yutetsu TAKATSUKASA 816cff009a
Fix #3824 of wrong bit op tree optimization (#3825) 
* Tests: Add a test to reproduce #3824

* Fix #3824 of wrong bitOpTree optimization. Consider constant 1 in an Or-tree made by shift-out.
 2023-01-04 23:10:55 +09:00
Wilson Snyder b24d7c83d3 Copyright year update 2023-01-01 10:18:39 -05:00
Larry Doolittle 80a144797d
Commentary: Fix more spelling (#3828) 2022-12-26 10:30:41 +01:00
Wilson Snyder 45abcb6107 Internals: Some V3LinkInc cleanups. No functional change. 2022-12-23 16:17:08 -05:00
Wilson Snyder c0499da28b Spelling fixes 2022-12-23 11:32:38 -05:00
Larry Doolittle f27cf4c804
Commentary: Fix spelling in C++ comments (#3797) (#3798) 2022-12-02 18:46:38 -05:00
Yutetsu TAKATSUKASA 889a1211f1
Fix 3786 (Internal error in bit op tree optimization) (#3793) 
* Tests: Add a test to reproduce 3786

* Fix #3786 (Internal error in bit op tree optimization).
 2022-12-01 22:00:24 +09:00
Wilson Snyder b51bb4d0e7 Internal: Add node objects to UASSERT (#3786) 2022-11-29 18:34:44 -05:00
Wilson Snyder 2c7f1ef40f Internals: Cleanup debug dumps so can grep-out leading-dashed lines 2022-11-27 08:31:22 -05:00
Ryszard Rozak 62bdd3ab49
Fix timing control in while-break loops (#3733) (#3769) 2022-11-21 06:27:55 -05:00
Wilson Snyder 2eed4452ad Internals: Fix constructor style. 2022-11-20 20:13:55 -05:00
Geza Lore 3abb65d732 Strengthen AstNode types to AstNodeExpr 
Declare every AstNode children and variables as AstNodeExpr where we
statically know this is the appropriate sub-type.
 2022-11-20 19:31:28 +00:00
Geza Lore 6ae6b16223 V3Const: Fix folding of LogAnd with non-bool operands 
Folding an AstLogAnd with a non-zero constant operand used to coerce the
type of the other operand, yielding an ill-typed node that DFG was then
unhappy about. Add a RedOr instead if the width of the replacement
operand is greater than zero.

Fixes #3726
 2022-11-05 13:36:21 +00:00
Geza Lore 65e08f4dbf Make all expressions derive from AstNodeExpr (#3721). 
Apart from the representational changes below, this patch renames
AstNodeMath to AstNodeExpr, and AstCMath to AstCExpr.

Now every expression (i.e.: those AstNodes that represent a [possibly
void] value, with value being interpreted in a very general sense) has
AstNodeExpr as a super class. This necessitates the introduction of an
AstStmtExpr, which represents an expression in statement position, e.g :
'foo();' would be represented as AstStmtExpr(AstCCall(foo)). In exchange
we can get rid of isStatement() in AstNodeStmt, which now really always
represent a statement

Peak memory consumption and verilation speed are not measurably changed.

Partial step towards #3420
 2022-11-03 16:02:16 +00:00
Geza Lore 54c4351c39 V3Const: Do not introduce redundant AstExtend 
Fixes #3716
 2022-10-28 14:54:00 +01:00
HungMingWu 196f3292d5 Improve V3Ast function usage ergonomics (#3650) 
Signed-off-by: HungMingWu <u9089000@gmail.com>
 2022-10-21 14:12:12 +01:00
Arkadiusz Kozdra 0e4da3b0bf
Support virtual interfaces (#3654) 2022-10-20 06:31:00 -04:00