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49 Commits

Author SHA1 Message Date
Anthony Donlon cbdee5a804
Fix Windows filename format, etc. (#3873) (#4421) 
* Ignore CLion project files and CMake outputs
* Supporting stripping file path that contains backslash
* Set /bigobj flag and increase stack size for windows platform
* Fix MSVC warnings
 2023-08-16 07:34:57 -04:00
Wilson Snyder add68130b8 Internals: Rename to dumpLevel(), to avoid confusion with make-a-dump() 2023-05-03 18:04:10 -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 b24d7c83d3 Copyright year update 2023-01-01 10:18:39 -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
Wilson Snyder 833780fac1 Internal: cppcheck fixes. No functional change intended. 2022-11-27 05:52:40 -05:00
Wilson Snyder 25f970eac2 Internals: Fix constructor style. 2022-11-20 15:06:49 -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
HungMingWu 196f3292d5 Improve V3Ast function usage ergonomics (#3650) 
Signed-off-by: HungMingWu <u9089000@gmail.com>
 2022-10-21 14:12:12 +01:00
Geza Lore 63c694f65f Streamline dump control options 
- Rename `--dump-treei` option to `--dumpi-tree`, which itself is now a
  special case of `--dumpi-<tag>` where tag can be a magic word, or a
  filename
- Control dumping via static `dump*()` functions, analogous to `debug()`
- Make dumping independent of the value of `debug()` (so dumping always
  works even without the debug flag)
- Add separate `--dumpi-graph` for dumping V3Graphs, which is again a
  special case of `--dumpi-<tag>`
- Alias `--dump-<tag>` to `--dumpi-<tag> 3` as before
 2022-09-22 17:24:41 +01:00
Geza Lore ce03293128 Generate AstNode accessors via astgen 
Introduce the @astgen directives parsed by astgen, currently used for
the generation child node (operand) accessors. Please see the updated
internal documentation for details.
 2022-09-21 13:56:03 +01:00
Geza Lore 0c70a0dcbf Remove redundant 'virtual' keywords from overridden methods 
'virtual' is redundant when 'override' is present, so keep only
'override'.

Add t/t_dist_cppstyle.pl to check for this.
 2022-09-16 15:19:38 +01:00
Geza Lore 96a4b3e5a5 Update clang-format config and apply 
- Regroup and sort #include directives (like we used to, but automatic)
- Set AlwaysBreakTemplateDeclarations to true
 2022-08-05 12:00:24 +01:00
Wilson Snyder b9d7819faa Internals: Fix some cppcheck issues. Some dump functions fixed. 2022-07-30 10:01:39 -04:00
Geza Lore 574dbfded1 V3MergeCond: Fix incorrect merge of assignments to the condition 2022-07-28 15:50:02 +01:00
Geza Lore 0c2c097377 Add -fno-merge-cond-motion option 
This disables code motion during V3MergeCond, for debugging.
 2022-06-13 14:16:11 +01:00
Geza Lore 0722f47539
Improve V3MergeCond by reordering statements (#3125) 
V3MergeCond merges consecutive conditional `_ = cond ? _ : _` and
`if (cond) ...` statements. This patch adds an analysis and ordering
phase that moves statements with identical conditions closer to each
other, in order to enable more merging opportunities. This in turn
eliminates a lot of repeated conditionals which reduced dynamic branch
count and branch misprediction rate. Observed 6.5% improvement on
multi-threaded large designs, at the cost of less than 2% increase in
Verilation speed.
 2022-05-27 16:57:51 +01:00
Geza Lore 1a056f6db9 Fix invalid conditional merging when starting at 'c = c ? a : b' 
Fixes #3409.
 2022-05-17 18:36:40 +01:00
Geza Lore b22e368b25 Add default parameters to some Ast nodes for convenience 
Also update usage to utilize. No functional change.
 2022-04-23 14:47:16 +01:00
Wilson Snyder 33105f017c Commentary 2022-03-30 20:17:59 -04:00
Geza Lore 64a6e1ac8b
Add AstNode::foreach method for simple pre-order traversal (#3276) 2022-01-09 22:34:10 +00:00
Wilson Snyder e6857df5c6 Internals: Rename Ast on non-node classes (#3262). No functional change. 
This commit has the following replacements applied:

	s/\bAstUserInUseBase\b/VNUserInUseBase/g;
        s/\bAstAttrType\b/VAttrType/g;
        s/\bAstBasicDTypeKwd\b/VBasicDTypeKwd/g;
        s/\bAstDisplayType\b/VDisplayType/g;
        s/\bAstNDeleter\b/VNDeleter/g;
        s/\bAstNRelinker\b/VNRelinker/g;
        s/\bAstNVisitor\b/VNVisitor/g;
        s/\bAstPragmaType\b/VPragmaType/g;
        s/\bAstType\b/VNType/g;
        s/\bAstUser1InUse\b/VNUser1InUse/g;
        s/\bAstUser2InUse\b/VNUser2InUse/g;
        s/\bAstUser3InUse\b/VNUser3InUse/g;
        s/\bAstUser4InUse\b/VNUser4InUse/g;
        s/\bAstUser5InUse\b/VNUser5InUse/g;
        s/\bAstVarType\b/VVarType/g;
 2022-01-02 14:03:20 -05:00
Wilson Snyder ca42be982c Copyright year update. 2022-01-01 08:26:40 -05:00
Wilson Snyder cd737065f2 Internals: More const. No functional change intended. 2021-11-26 17:55:36 -05:00
Wilson Snyder 2742a8c813 Internals: No need for variable name on immediate visitors. No functional change intended. 2021-11-26 10:52:45 -05:00
Wilson Snyder 05e12ab60e Internals: More const. No functional change intended. 2021-11-26 10:52:45 -05:00
Geza Lore 381c87a1eb Remove VN_CAST_CONST and VN_AS_CONST. 
The _CONST suffix on these macros is only lexical notation, pointer
constness can be preserved by overloading the underlying
implementations appropriately. Given that the compiler will catch
invalid const usage (trying to assign a non-const pointer to a const
pointer variable, etc.), and that the declarations of symbols should
make their constness obvious, I see no reason to keep the _CONST
flavours.
 2021-10-24 11:43:48 +01:00
Geza Lore dae9fa5053 Use VN_AS wherever possible and obvious. No functional change. 2021-10-22 14:06:00 +01:00
Geza Lore 34a0bb448e Improve V3MergeCond 
- Merge AstNodeIf nodes as well (not just assignment from AstCond)
- Merge merged results recursively (optimizes nested conditionals/ifs)
- Only checking mergeability once per node.
- Don't add redundant masking
- Duplicate cheap statements in both branches, if doing so yields a
  larger merge
- Include reduced nodes before the starting conditional in the merge
 2021-08-19 18:55:39 +01:00
Wilson Snyder b8e804f05b Internals: Some clang-tidy cleanups. No functional change intended. 2021-07-25 13:38:27 -04:00
Wilson Snyder 8ecdc85cf7 Internals: C++11 style cleanups. No functional change. 2021-07-11 18:42:01 -04:00
Wilson Snyder 9650aefa42 Internals: Cleanup unneeded {}. No functional change 2021-02-21 21:25:21 -05:00
Wilson Snyder bd602d0e2d Copyright year update 2021-01-01 10:29:54 -05:00
Wilson Snyder 665e8edaff Support $monitor and $strobe. 2020-11-29 11:31:38 -05:00
Wilson Snyder a54ac52a35 Internals: Use 'Bit' where mean 2-state type. No functional change. 2020-11-29 08:23:36 -05:00
Wilson Snyder b6ded59c2b Internals: Use and enforce class final for ~5% performance boost. 2020-11-18 21:32:16 -05:00
Wilson Snyder 1b0a48ea02 Internals: Use C++11 = default where obvious. No functional change intended. 2020-11-16 19:56:16 -05:00
Wilson Snyder 2a24bb4759 Fix queue poping wrong value when otherwise unused (#2512). 2020-11-07 10:37:55 -05:00
Wilson Snyder 1899a875a4 Internals: Create VAccess class. No functional change intended. 2020-09-07 17:09:25 -04:00
Wilson Snyder 72d2cff0a1 C++11: Use member declaration initalizations. No functional change intended. 2020-08-16 11:44:06 -04:00
Wilson Snyder 033e7ac020 C++11: Use member declaration initalizations. No functional change intended. 2020-08-16 11:44:06 -04:00
Wilson Snyder 042d3eed23 C++11: Use override where possible. No functional change. 2020-08-16 11:44:05 -04:00
Wilson Snyder c0127599df C++11: Use nullptr. No functional change. 2020-08-16 11:44:05 -04:00
Wilson Snyder 7c54a451a9 C++11: Remove pre-c11 VL_OVERRIDE etc. No functional change. 2020-08-16 11:44:05 -04:00
Geza Lore a17f51eac0 Improve V3MergeCond 
- Do try to merge after assignment to condition when possible.
- Do not try to merge reduced form if not the expected statement.
  This used to cause a crash.
 2020-07-02 13:13:51 +01:00
Geza Lore 4a404bd92e Always mask LSB in V3Merge Cond when mergin AstAnd 2020-06-06 00:17:59 +01:00
Wilson Snyder a433096d5a Internals: Fix misc internal coverage holes. No functional change intended. 2020-06-04 19:49:39 -04:00
Geza Lore fe306a36b8
Add MergeCond pass to combine assignments with ?: on rhs (#2376) 
This provides minor simulation performance benefit, but can provide
large C++ compilation time improvement, notably with Clang (4x).

This patch implements #2366 .
 2020-05-30 21:09:05 +01:00