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13389b66
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2016-10-16T11:48:18
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Split TIntermDeclaration from TIntermAggregate
The new class TIntermDeclaration is now used for struct, interface
block and variable declarations. TIntermDeclaration nodes do not have
a type - rather the type is stored in each child node. The types may
differ in case the declaration is a series of array declarators with
mismatching sizes.
TIntermAggregate is still used for function calls, function
prototypes, function parameter lists and invariant declarations.
BUG=angleproject:1490
TEST=angle_unittests
Change-Id: I0457188f354481470855f61ac1c878fc2579b1d1
Reviewed-on: https://chromium-review.googlesource.com/400023
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
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635671dc
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2016-10-20T07:57:36
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Fix pruning empty declarations from loop headers
Empty declarations are possible in loop init expressions. Make
PruneEmptyDeclarations take this into account.
BUG=angleproject:1550
TEST=angle_unittests
Change-Id: If407babf9b6f7a26dfcf73ff345493d3e2af3f9a
Reviewed-on: https://chromium-review.googlesource.com/401147
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
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6d40bbdd
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2016-09-30T13:49:38
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Split TIntermBlock from TIntermAggregate
The new TIntermBlock node class replaces TIntermAggregate nodes with
the EOpSequence op. It represents the root node of the tree which is
a list of declarations and function definitions, and any code blocks
that can be denoted by curly braces. These include function and loop
bodies, and if-else branches.
This change enables a bunch of more compile-time type checking, and
makes the AST code easier to understand and less error-prone.
The PostProcess step that used to be done to ensure that the root node
is TIntermAggregate is removed in favor of making sure that the root
node is a TIntermBlock in the glslang.y parsing code.
Intermediate output formatting is improved to print the EOpNull error
in a clearer way.
After this patch, TIntermAggregate is still used for function
definitions, function prototypes, function parameter lists, function
calls, variable and invariant declarations and the comma (sequence)
operator.
BUG=angleproject:1490
TEST=angle_unittests, angle_end2end_tests
Change-Id: I04044affff979a11577bc1fe75d747e538b799c8
Reviewed-on: https://chromium-review.googlesource.com/393726
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
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474a08c0
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2016-06-28T10:49:46
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Remove qualifiers from empty struct declarations in output
Empty struct declarations with qualifiers are rejected by NVIDIA GL
driver version 367.27. For example this kind of construct that is
expected to be accepted by the WebGL conformance tests is rejected:
const struct a {
int i;
};
Since qualifiers do not carry meaning unless a struct declaration
has declarators, they can be simply omitted from the translator
output in this kind of cases to work around this driver issue.
New unit test is added to check that pruning empty declarations works
correctly.
BUG=angleproject:1430
BUG=622492
TEST=WebGL conformance tests, angle_unittests
Change-Id: Id83f83124ae597fcdfa15100d336c2c207d9449c
Reviewed-on: https://chromium-review.googlesource.com/356362
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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c6833115
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2015-04-22T15:15:54
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Prune empty declarations from the AST
Empty declarations in ESSL shaders currently result in errors on several
platforms. Prune empty declarations that are not struct or interface block
declarations from the AST.
TEST=WebGL conformance tests, angle_unittests, angle_end2end_tests
BUG=angleproject:980
Change-Id: I9e3abf8134e6dfed0253cc83f69ce0ee92b0e0e7
Reviewed-on: https://chromium-review.googlesource.com/266841
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
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