Add a 'NodeID' to each ast::Node which is the sequentially allocated
index of the node. Use this in sem::Info to map the AST node to the
semantic node, instead of using a std::unordered_map.
Optimised very hot code by entirely eliminating map lookups, and
dramatically reducing cache misses (lookups are usually sequentually
ordered).
Timings running
'webgpu:shader,execution,expression,call,builtin,atan2:f32:inputSource="const";vectorize="_undef_"'
with dawn/node, using SwiftShader:
Without change: 3.22647107s
With change: 3.10578879s
Bug: tint:1613
Change-Id: I22ec48d933b2e5f9da04494bff4e979e6f7b1982
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/96140
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Use the @const annotations to more efficently dispatch to the right
method of the ConstEval class.
Reduces a whole lot of dynamic casting logic.
Change-Id: I6791aac51b935b46d63af29abd1e577b3306a0ff
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95950
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Extract out the methods of Resolver::EvaluateXXXValue() to a new
tint::resolver::ConstEval class.
Removes more bloat from Resolver, and creates a centralized class for
constant evaluation, which can be referred to by the IntrinsicTable.
Change-Id: I3b58882ef293fe07f019ad2138a7e9dbbac8de53
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95951
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Restructure the logic so there's less, pointless dynamic casting, and the complexity is reduced.
This alters the order in which variables are validated, hence the change of test.
Change-Id: I9a3120c0278faa5ac9f1db65eeb71a8e4a705596
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95948
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
This patch fix the GLSL writer issue that emit only one helper function
when using both `v % s`, `s % v` and `v % vs in the shader, where `s` is
of `f32` and `v` is a vector of `f32`. Unittests are added for GLSL.
Bug: tint:1614
Change-Id: Ia89ae010341b9c88b8101cc6febab7d83c96bb17
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/96085
Reviewed-by: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
The `el_count` will match the WGSL declared array size *before validation*.
Fuzzers have started triggering out-of-memory cases by constructing large constant arrays, just to then error out.
Bug: chromium:1343963
Change-Id: I537ff3a570fe56b40e510b3bc6dfcd9b9752386a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/96102
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This patch make SPIRV writer support emitting f16 types, f16 literals,
f16 constructor and convertor. Unittests are also implemented.
Currently SPIRV writer will require 4 capabilities in generated SPIRV:
`Float16`, `UniformAndStorageBuffer16BitAccess`,
`StorageBuffer16BitAccess`, and `storageInputOutput16`.
Bug: tint:1473, tint:1502
Change-Id: Ia1af04f1f4a02bf1b1c2599a5d89791854eabc16
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95920
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
Materialize() was re-evaluating the constant values for the incoming
semantic expression, despite this already being evaluated. Just use the
sem::Expression::ConstantValue().
resolver.cc already has all the semantic pointers, so pass them in
instead of pointlessly hitting the ast -> sem map.
Change-Id: If2bc7cd10f79079fb811e9d83c5150dd3c0c244c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95764
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Any AST expression may map to a sem::Materialize, so the inferred
mapping is bug-prone (the implicit sem type may mismatch and Get() may
return nullptr).
Change-Id: I34485a4a067635df930a407316fae8b2e9628c3d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95763
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
This CL add methods that return the binary16 bit pattern for a
constructed Number<detail::NumberKindF16>. This is required for
generating SIPR-V oprand.
Bug: tint:1473, tint:1502
Change-Id: Ia3680cdb5a0e64d31bfe2f48432cda3850c1f5a7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95240
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
The structured CFG rule was revised/clarified in SPIR-V 1.6 Rev2
Validation now rejects a few cases.
SpvParserTest, ValueFromBlockNotInBlockOrder
SpvParserFunctionVarTest, EmitStatement_Phi_ValueFromBlockNotInBlockOrderIgnored
SpvParserFunctionVarTest_EmitStatement_Phi_ValueFromBlockNotInBlockOrderIgnored
- Originally from crbug.com/tint/804
Invalid by SPIR-V 1.6 Rev2 update to validation rules:
- Block 80 is a structurally reachable continue target
- Block 25 is not structually reachable, and not part of the loop,
but branches to 80.
vk-gl-cts/graphicsfuzz/cov-dead-branch-func-return-arg/0-opt.*
- The continue construct with the continue target 37[%37]
is not structurally post dominated by the back-edge block 64[%64]
- The SPIRV-Tools inliner no longer creates such cases. It splits the
single-block loop and pushes the continue target down.
vk-gl-cts/graphicsfuzz/nested-for-loops-with-return/0-opt.spvasm
- The loop headed at block 46 does not structurally dominate its merge
block 44. There is a continue-target edge from 41 to 44.
SpvParserCFGTest_ClassifyCFGEdges_BackEdge_MultiBlockLoop_MultiBlockContinueConstruct_ContinueIsHeader.spvasm
SpvParserCFGTest_EmitBody_Loop_MultiBlockContinueIsEntireLoop.spvasm
SpvParserCFGTest_LabelControlFlowConstructs_MultiBlockLoop_HeaderIsContinue.spvasm
SpvParserCFGTest_SiblingLoopConstruct_ContinueIsWholeMultiBlockLoop.spvasm
SpvParserCFGTest, ClassifyCFGEdges_BackEdge_MultiBlockLoop_MultiBlockContinueConstruct_ContinueIsHeader
SpvParserCFGTest, EmitBody_Loop_MultiBlockContinueIsEntireLoop
SpvParserCFGTest, LabelControlFlowConstructs_MultiBlockLoop_HeaderIsContinue
SpvParserCFGTest, SiblingLoopConstruct_ContinueIsWholeMultiBlockLoop
- Continue target 20 also its own loop header, but is not structurally
post-dominated by the backedge block.
- Delete the end-to-end test.
- Keep the unit test because it's about classifying edges, but disable dumping
into the end2end suites.
Change-Id: I9ec2504aadd2fec9ea463901af7dc1b5f47481b5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95580
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: David Neto <dneto@google.com>
Change sem::Constant to be an interface to the constant data. Implement
this so that zero-initialized data doesn't need to allocate the full
size of the type.
This also makes usage a lot cleaner (no more flattened-list of
elements!), and gives us a clear path for supporting constant
structures if/when we want to support them.
Bug: chromium:1339558
Bug: chromium:1339561
Bug: chromium:1339580
Bug: chromium:1339597
Change-Id: Ifcd456f69aee18d5b84befa896d7b0189d68c2dd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94942
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
When enabling the SPIR-V reader or SPIR-V writer we were suppressing
-Wnewline-eof, -Wold-style-cast, -Wsign-conversion, and -Wweak-vtables
for the `libtint` cmake target and anything that depended on that
target. Because we'd build all readers/ writers by default this caused
us to never hit those warnings.
A recent change to the cmake build sets the Tint backend based on
the Dawn backend. So, there is a much higher chance of not building
the SPIR-V support if you're on a Mac or Windows machine.
This CL removes the suppression of the warnings, adds specific pragmas
into the SPIR-V reader code which imports the SPIRV-Tools headers
and fixes up the warnings which were then firing due to checking
for the new warnings.
Change-Id: I0d0be6aa3d0b692e939ce8ff924dfb82c82792fc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94901
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
This function was attempting to pick a higher-precision type by using
the decltype() of FROM + TO. This doesn't work if FROM and TO are both
similar bit-widths, and of a different signness, as the picked type may
not be wide enough to hold both the signed and unsigned representation.
Just use AInt or AFloat (both 64-bit), which are the largest types
supported by WGSL.
Change-Id: Ic76475d98bad8def12a0283a1c83c62f2ed58b5d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/95041
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@google.com>
