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5c0e023c
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2015-11-11T15:55:59
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Qualify stored constant union data with const
This prevents accidentally changing data that may be shared between
multiple TIntermConstantUnion nodes.
Besides making the code less prone to bugs in general, this will make it
easier to implement constant folding of array constructors.
BUG=541551
TEST=angle_unittests, WebGL conformance tests
Change-Id: I4f3059f70b841d9dd0cf20fea4d37684da9cd47e
Reviewed-on: https://chromium-review.googlesource.com/312440
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tryjob-Request: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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1d122789
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2015-11-06T15:35:17
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Fix constructor constant folding
The previous solution for constant folding constructors was significantly
overengineered and partially incorrect. Switch to a much simpler
constructor folding function that does not use an AST traverser, but
simply iterates over the constant folded parameters of the constructor
and doesn't do any unnecessary checks. It also reuses some code for
constant folding other built-in functions.
This fixes issues with initializing constant matrices with only a single
parameter. Instead of copying the first component of the constructor
parameter all over the matrix, passing a vec4 or matrix argument now
assigns the values correctly.
BUG=angleproject:1193
TEST=angle_unittests, WebGL conformance tests
Change-Id: I50b10721ea30cb15843fba892c1b1a211f1d72e5
Reviewed-on: https://chromium-review.googlesource.com/311191
Tryjob-Request: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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15200047
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2015-11-04T16:56:31
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Fix issues in comma operator parsing
Always qualify comma operator result with EvqTemporary in ESSL3, as
specified.
Also, it is possible that in the future some expressions are qualified
as EvqConst but they'd still have side effects, in which case discarding
them when they're the left operand of the comma operator would be wrong.
This would be the case if ANGLE allowed "(a = b).length()" for example.
For this reason it is better to check whether the left node has side
effects, rather than check its const qualification, and only discard it
if it doesn't.
Also, Intermediate::addComma() never returns null, so there's no need to
check the result.
BUG=angleproject:1201
TEST=WebGL conformance tests
conformance/glsl/misc/sequence-operator-returns-constant.html
conformance2/glsl3/sequence-operator-returns-non-constant.html
Change-Id: Ibfbd92baa4910b14c0dc8f8a3c3008440d191cd6
Reviewed-on: https://chromium-review.googlesource.com/311171
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tryjob-Request: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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43613b03
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2015-08-04T11:02:21
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Make sure that the AST root is always a sequence node
This enables inserting helper functions as an AST transformation.
BUG=angleproject:1116
TEST=angle_unittests
Change-Id: I169d4d3a726d0e389cb3444fe9dfb4c6c5d80155
Reviewed-on: https://chromium-review.googlesource.com/290513
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
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b43846ee
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2015-06-02T18:18:57
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Unify aggregate operator folding with other constant folding
Setting the type for folded aggregate nodes should work in a similar way
as other constant folding. Common functionality between the different
folding functions is refactored into a single function.
TEST=dEQP-GLES3.functional.shaders.constant_expressions.*
BUG=angleproject:817
Change-Id: Ie0be561f4a30e52e52d570ff0b2bdb426f6e4f7a
Reviewed-on: https://chromium-review.googlesource.com/275186
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
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7d7f8c44
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2015-05-19T18:38:49
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Ensure that conditional blocks and loop bodies are sequence nodes
AST transformations such as unfolding logical operations can only
create nodes inside sequence (block) nodes. This patch ensures that these
AST transformations work even inside conditional blocks and loop bodies
that were first parsed as single statements instead of blocks.
BUG=angleproject:971
TEST=WebGL conformance tests
Change-Id: If98cb7be653ec7b005537b89547f4f4cf1c07c72
Reviewed-on: https://chromium-review.googlesource.com/272141
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
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274f0709
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2015-05-05T13:33:30
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Add constant folding support for min,max and clamp
This change adds necessary mechanism to support constant folding of
built-ins that take more than one parameter and also adds constant
folding support for min, max and clamp built-ins.
BUG=angleproject:913
TESTS=dEQP tests
(126 tests started passing with this change)
dEQP-GLES3.functional.shaders.constant_expressions.builtin_functions.common.min_*
dEQP-GLES3.functional.shaders.constant_expressions.builtin_functions.common.max_*
dEQP-GLES3.functional.shaders.constant_expressions.builtin_functions.common.clamp_*
Change-Id: Iccc9bf503a536f2e3c144627e64572f2f95db9db
Reviewed-on: https://chromium-review.googlesource.com/271251
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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95d34aaf
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2015-05-13T19:44:31
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Revert "Add constant folding support for min,max and clamp"
This reverts commit 1137a2a6b4a68fe3f7497bb9289975b030576372.
Change-Id: I1493c2706e5f08a9f0001835e663a147be85a303
Reviewed-on: https://chromium-review.googlesource.com/270782
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
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1137a2a6
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2015-05-05T13:33:30
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Add constant folding support for min,max and clamp
This change adds necessary mechanism to support constant folding of
built-ins that take more than one parameter and also adds constant
folding support for min, max and clamp built-ins.
BUG=angleproject:913
TESTS=dEQP tests
(126 tests started passing with this change)
dEQP-GLES3.functional.shaders.constant_expressions.builtin_functions.common.min_*
dEQP-GLES3.functional.shaders.constant_expressions.builtin_functions.common.max_*
dEQP-GLES3.functional.shaders.constant_expressions.builtin_functions.common.clamp_*
Change-Id: I5d3e96ef2062116cbf164a7a42cba096bd4d5389
Reviewed-on: https://chromium-review.googlesource.com/269317
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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b11e2483
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2015-05-04T14:21:22
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translator: Fix validation sometimes modifying builtins.
When validating some shaders with out-of-bounds array indexes,
we would write the sanitized index into the global symbol table.
We would then overwrite a wrong value for the builtin. This
fixes the WebGL test extensions/webgl-draw-buffers-max-draw-buffers.
Also mark const on as many uses ConstantUnion as we can.
BUG=angleproject:993
Change-Id: I110efaf1b7b0158b08b704277e3bc2472437902c
Reviewed-on: https://chromium-review.googlesource.com/268962
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
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6ba6eadc
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2015-05-04T14:21:21
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Rename ConstantUnion to TConstantUnion.
This clarified that we're using the Pool allocator/deallocator for
this type.
BUG=angleproject:993
Change-Id: If8c95f6054d07291e7014be0d4e35766ba2e943b
Reviewed-on: https://chromium-review.googlesource.com/269131
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
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5290174b
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2015-04-15T13:42:45
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Refactor ternary operator parsing
Refactor ternary operator parsing so that validation is done in
ParseContext and Intermediate's role is simply to create the node added
to the tree.
Remove partially bugged checks for null nodes as a part of this - in
error cases the parser doesn't typically add null nodes to the tree, but
rather always has a fallback to add a dummy node if parsing fails as a
method of recovery. When parsing ternary operators it should be
guaranteed that none of the parameter nodes is null.
Includes a better explanation of why ternary operators are not always
folded when only the condition is constant, and a test to make sure this
doesn't regress.
BUG=angleproject:952
TEST=WebGL conformance tests, angle_unittests
Change-Id: Icbcb721b5ab36cf314a16e79f9814aef1f355fa0
Reviewed-on: https://chromium-review.googlesource.com/265643
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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f6c694bc
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2015-03-26T14:50:53
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Assign built-in function return type in promote()
This finishes the refactoring of unary math operation handling so that
IntermUnary::promote has the complete code for setting the return type of
the node.
BUG=angleproject:952
TEST=angle_unittests, WebGL conformance tests
Change-Id: I19bd8d53029e24f734c9436eceb446b37e7fcf26
Reviewed-on: https://chromium-review.googlesource.com/262416
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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69c11b5d
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2015-03-26T12:59:00
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Move validation from Intermediate::addUnaryMath to ParseContext
Intermediate should only have logic for creating node objects, validation
of parameter types belongs in ParseContext.
BUG=angleproject:952
TEST=angle_unittests, WebGL conformance tests
Change-Id: Ie90697641fabb2a837ccc4571a93616d63ea64e6
Reviewed-on: https://chromium-review.googlesource.com/262414
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Nicolas Capens <capn@chromium.org>
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a3a36664
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2015-02-17T13:46:51
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Implement parsing switch statements
Put in some groundwork for parsing switch statements and case labels in
the parser, including definitions for IntermNode classes. Intermediate
functions for adding the statements are stubbed to only generate errors
for now.
Tested by manually disabling shading language version checks for switch
in a Chromium build and checking that the expected errors are generated.
BUG=angle:921
Change-Id: I064b3e0c4c1b724a083cf5bc78eebfdd3794eb1b
Reviewed-on: https://chromium-review.googlesource.com/250380
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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a3a5cc6a
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2015-02-13T13:12:22
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Expose the IntermNode tree generated in the compiler for testing
This refactoring makes it possible for tests to access the IntermNode
tree produced by compilation by calling compileTree(). Removing
ParseContext usage from OutputHLSL has the additional benefit of better
separation between parsing and output.
BUG=angle:916
Change-Id: Ib40954832316328772a5c1dcbbe6b46b238e4e65
Reviewed-on: https://chromium-review.googlesource.com/249723
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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352beffc
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2014-11-19T13:45:55
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Remove RemoveAllTreeNodes, since it was a no-op
IntermNode operator delete() or any of the IntermNode destructors don't
do anything, since all the AST memory is allocated on the PoolAllocator.
Because of this, RemoveAllTreeNodes was simply a no-op, and redundant
with the PoolAllocator deallocation procedure, and could confuse people
reading the code to think that IntermNodes should be deleted
individually, when in fact this is not the case.
BUG=angle:831
Change-Id: Ie1ccaa51986aabf267280d92a8e76ca9f97a19e5
Reviewed-on: https://chromium-review.googlesource.com/230730
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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0a73dd85
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2014-11-19T16:18:08
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Fix include guards.
BUG=angle:733
Change-Id: I08b2c11c4831f1161c178c1842b10e807185aced
Reviewed-on: https://chromium-review.googlesource.com/230831
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
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b9b5c105
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2014-08-20T17:28:54
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Rename intermediate.h to Intermediate.h.
This was breaking the Linux build.
Change-Id: I8f63527cfa37ee774ea5d1e6eb0043a4c7ccc734
Reviewed-on: https://chromium-review.googlesource.com/213300
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
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