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b980c563
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2018-11-27T11:34:27
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Reformat all cpp and h files.
This applies git cl format --full to all ANGLE sources.
Bug: angleproject:2986
Change-Id: Ib504e618c1589332a37e97696cdc3515d739308f
Reviewed-on: https://chromium-review.googlesource.com/c/1351367
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
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ea22b7a5
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2018-01-04T17:09:11
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Constant fold array indexing and comparison
A virtual function to get the constant value of an AST node is added
to TIntermTyped. This way a constant value can be retrieved
conveniently from multiple different types of nodes. TIntermSymbol
nodes pointing to a const variable can return the value associated
with the variable, constructor nodes can build a constant value from
their arguments, and indexing nodes can index into a constant array.
This enables constant folding operations on constant arrays, while
making sure that large amounts of data are not duplicated in the
output shader. When folding an operation makes sense, the values of
the arguments can be retrieved by using the new
TIntermTyped::getConstantValue(). When folding an operation would
result in duplicating data, the AST can just be left to be written out
as is.
For example, if the code contains a constant array of arrays, indexing
into individual elements of the inner arrays can be folded, but
indexing the top level array is left in place and not replaced with
duplicated array literals.
Constant folding is supported for indexing and comparisons of arrays.
In case constant arrays are only referenced through foldable
operations, the variable declarations will be pruned from the AST by
the RemoveUnreferencedVariables step.
BUG=angleproject:2298
TEST=angle_unittests
Change-Id: I5b3be237b7e9fdba56aa9bf0a41b691f4d8f01eb
Reviewed-on: https://chromium-review.googlesource.com/850973
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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25aef453
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2017-01-29T16:15:44
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Add new ESSL 3.10 pack/unpack builtins
This adds new built-ins found in ESSL 3.10 section 8.4 Floating-Point
Pack and Unpack Functions.
This includes constant folding support and support for both GLSL and
HLSL output. In HLSL all of these functions need to be emulated.
BUG=angleproject:1730
TEST=angle_unittests
TEST=dEQP-GLES31.functional.shaders.*pack*norm4x8*
Change-Id: Ibed60286a366cd35c4faafd405e79af562a02a06
Reviewed-on: https://chromium-review.googlesource.com/434170
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
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9250cb24
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2017-01-21T10:51:27
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Add ESSL 3.10 integer math built-ins
This adds built-ins found in ESSL 3.10 section 8.8 Integer functions.
This includes constant folding support for functions that may be
constant folded, and support for both GLSL and HLSL output. In HLSL
several of the functions need to be emulated.
The precision qualification for the return value of some of these
functions is determined by special rules, that are now part of type
promotion for TIntermUnary nodes and determining the type of
TIntermAggregate nodes.
BUG=angleproject:1730
TEST=angle_unittests
TEST=dEQP-GLES31.functional.shaders.builtin_functions.integer.*
Change-Id: Ib0056c17671c42b6496c2f0ef059b99f8f25c122
Reviewed-on: https://chromium-review.googlesource.com/431310
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
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72fc5547
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2016-12-19T19:53:29
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Add a ShaderCompileTreeTest base class to use in compiler tests
The test class provides facilities for parsing test shader source into
an AST and determining compile status. Compilation flags change for
some of the tests, but this should only have a minor effect on code
coverage - mostly affecting non-core parts such as intermediate
output.
BUG=angleproject:1673
TEST=angle_unittests
Change-Id: I7d0900ef490e021272a27c4b0c938bfee02abf39
Reviewed-on: https://chromium-review.googlesource.com/422367
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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2d73665d
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2016-11-30T10:37:49
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Handle constant folding arithmetic involving infinity
Constant folding arithmetic operations that involve infinity are now
handled correctly in the cases where the result is infinity or zero.
The implementation mostly relies on C++ to implement IEEE float
arithmetic correctly so that unnecessary overhead is avoided.
Constant folding arithmetic operations that result in overflow now
issue a warning but result in infinity. This is not mandated by the
spec but is a reasonable choice since it is the behavior of the
default IEEE rounding mode.
Constant folding arithmetic operations that result in NaN in IEEE will
generate a warning but the NaN is kept. This is also not mandated by
the spec, but is among the allowed behaviors.
There's no special handling for ESSL 1.00. ESSL 1.00 doesn't really
have the concept of NaN, but since it is not feasible to control
generating NaNs at shader run time either way, it should not be a big
issue if constant folding may generate them as well.
TEST=angle_unittests
BUG=chromium:661857
Change-Id: I06116c6fdd02f224939d4a651e4e62f2fd4c98a8
Reviewed-on: https://chromium-review.googlesource.com/414911
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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08d4aa93
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2016-11-23T16:15:49
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Refactor constant folding tests
The constant folding test classes are moved into a separate file in
test_utils. This will enable adding multiple test files that use
constant folding test classes, so that constant folding tests can be
organized better.
TEST=angle_unittests
BUG=chromium:661857
Change-Id: I00bf25a4b941bdc1364ff5aa9bee2d571e4b0ea0
Reviewed-on: https://chromium-review.googlesource.com/414910
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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