5 Commits

Author SHA1 Message Date
Ben Clayton
3fbe98e657 Castable: Optimize Switch()
Use a bloom-filter-style early rejection to eliminate whole blocks of
case statements from the switch type checks. Much like IsAnyOf(), the
list of types considered are recursively tested as a whole and
then binary-chopped if there's a potential match, until we test the
individual switch case types.

Bug: tint:1383
Change-Id: I5b30f19ea070e8352bf6b9363f133da906013182
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78544
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2022-02-04 18:58:33 +00:00
Ben Clayton
b68e8aa658 Optimize tint::IsAnyOf<>() for many types
Split IsAnyOf() into log(n) stages, where each stage performs a hashcode
check.

Previously there was a single hash test across the bitwise-or of all the
types being considered. If this passed, then each type would be tested
with Is<T>() individually. With this change, the list of types will be
recursively split into two, which each block hash-code checked. This is
repeated until we reach fewer than 4 types to check, where the test
decays to using Is<T>() for each type.

Also renamed `combined_hashcode` to `full_hashcode`, and used the term
CombinedHash for new helpers that bitwise-or the hashes from a number
of types.

Bug: tint:1383
Change-Id: Id056b9f7a9792430bd75ce554cb5fe73221ca4c7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78580
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
2022-02-02 14:38:32 +00:00
Ben Clayton
1a8171c08b traits: Add SignatureOf helper
This a more powerful version of the ParamType class.
It provide all the same information as before, plus function return type
and number of parameters.

Change-Id: If03feed0c1b94434fa95340b6b6277621b4f81b4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/69100
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-11-11 16:07:12 +00:00
Ben Clayton
5b36d2c612 Remove all unnecessary includes
All includes from .cc to .h are preserved, even when transitively included.

It's clear that there are far too many includes in header files, and we should be more aggressive with forward declarations. tint:532 will continue to track this work.

There are, however, plenty of includes that have accumulated over time which are no longer required directly or transitively, so this change starts with a clean slate of *required* includes.

Bug: tint:532
Change-Id: Ie1718dad565f8309fa180ef91bcf3920e76dba18
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/44042
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-03-09 11:11:17 +00:00
Ben Clayton
1e29f4beb0 Move CloneContext and Traits from src/ast to src/
CloneContext clones the AST, types, symbols and in the future semantic info.
3/4 of these are non-ast, so promote these up to the root.

Bug: tint:390
Change-Id: I49619796e6f81f9ab64f79413a12c87312cb1901
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/38361
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
2021-01-21 16:20:40 +00:00