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Author SHA1 Message Date
Ben Clayton ed2b97811e ast: Add Module.Clone() 
Deep-clones all `Node`s and `Type`s into a new module.

Instead of writing a million standalone tests that'll only ever test the
existing fields of each type, I've opted to write the tests using
wgsl<->ast<->wgsl conversion. This means the tests require the enabling
of TINT_BUILD_WGSL_READER and TINT_BUILD_WGSL_WRITER, but I believe this
is much easier to maintain.

I'm aware there are probably gaps in the tests, and that even full
coverage is likely to rapidly rot, so I've also added
fuzzers/tint_ast_clone_fuzzer.cc - a fuzzer based test that ensures that
all AST modules can be cloned with identical reproduction.

I've run this across 100 cores of a 3990x for 4 hours, fixing the
single issue it detected.

Note: Expressions do not currently clone their `TypeManager` determined
types. This is for two reasons:
(a) This initial CL is mahoosive enough.
(b) I'm uncertain whether we actually want to clone this info, or to
    re-run the `TypeDeterminer` after each AST transform. Maybe it should
    be optional. Time will tell.

Fixed: tint:307
Change-Id: Id90fab06aaa740c805d12b66f3f11d1f452c6805
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/33300
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
 2020-12-01 18:04:17 +00:00
Ben Clayton 03ae9a397f Cleanup: Remove unnecessary namespace prefixes 
No need to prefix with `ast::` when you're in the ast namespace already.

Change-Id: Iac6cd3a215c05a80ee2035d582500f1d6c882a06
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/34320
Reviewed-by: dan sinclair <dsinclair@chromium.org>
 2020-11-30 23:30:58 +00:00
Ben Clayton acf7643518 Replace Literal::(Is|As)* with Castable 
Change-Id: I842483890b369d63c23dba475b6738bffe5cfdbd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/34319
Reviewed-by: dan sinclair <dsinclair@chromium.org>
 2020-11-30 23:30:58 +00:00
Ben Clayton e319d7f0e9 Derive all ast::Node from Castable 
The hand-rolled `AsBlah()`, `IsBlah()` methods will be migrated in future changes.

Change-Id: I078c100b561b50018771cc38c1cac4379c393424
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/34301
Reviewed-by: dan sinclair <dsinclair@chromium.org>
 2020-11-30 23:30:58 +00:00
Ryan Harrison 4d32be4f1b Remove suppressing [chromium-style] errors 
Lots of little style nits needed to be fixed for this work.

BUG=tint:44

Change-Id: Ibb45d9e3f6795ee0c09f5eca994bb28e20979d97
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19221
Reviewed-by: dan sinclair <dsinclair@google.com>
 2020-04-09 18:52:06 +00:00
dan sinclair 113fb07071 [spirv-writer] Generate constants 
This CL updates the SPIR-V writer to generate the OpConstantTrue,
OpConstantFalse and OpConstant instructions.

Bug: tint:5
Change-Id: I660554c491e4eb569e3902fce0973fae3f27e6c0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17820
Reviewed-by: David Neto <dneto@google.com>
 2020-03-27 00:45:34 +00:00
Dan Sinclair 6e581895a5 Initial commit 2020-03-02 15:47:43 -05:00