This also enables vecN -> vec1 shape conversions for all places doing shape
conversions.
For signature selection, makes shape changes worse than any other comparison
when deciding what conversions are better than others.
From the ES spec + Bugzilla 15931 and GL_KHR_vulkan_glsl:
- Update precision qualifiers for all built-in function prototypes.
- Implement the new algorithm used to distinguish built-in function
operation precisions from result precisions.
Also add tracking of separate result and operation precisions, and
use that in generating SPIR-V.
(SPIR-V cares about precision of operation, while the front-end
cares about precision of result, for propagation.)
Also, this allows turning on the error check for a failed assigment
when parsing.
This makes 39 HLSL tests have a working assignment that was previously
silently dropped, due to lack of this functionality.
Note: This required adding a new test mode to see the AST for vulkan tests.
This also required reworking some deeper parts of type creation, regarding
when storage qualification and constness is deduced bottom-up or dictated
top-down.
Reimplement the whole workflow to make that: precise'ness of struct
members won't spread to other non-precise members of the same struct
instance.
Approach:
1. Build the map from symbols to their defining nodes. And for each
object node (StructIndex, DirectIndex, Symbol nodes, etc), generates an
accesschain path. Different AST nodes that indicating a same object
should have the same accesschain path.
2. Along the building phase in step 1, collect the initial set of
'precise' (AST qualifier: 'noContraction') objects' accesschain paths.
3. Start with the initial set of 'precise' accesschain paths, use it as
a worklist, do as the following steps until the worklist is empty:
1) Pop an accesschain path from worklist.
2) Get the symbol part from the accesschain path.
3) Find the defining nodes of that symbol.
4) For each defining node, check whether it is defining a 'precise'
object, or its assignee has nested 'precise' object. Get the
incremental path from assignee to its nested 'precise' object (if
any).
5) Traverse the right side of the defining node, obtain the
accesschain paths of the corresponding involved 'precise' objects.
Update the worklist with those new objects' accesschain paths.
Label involved operations with 'noContraction'.
In each step, whenever we find the parent object of an nested object is
'precise' (has 'noContraction' qualifier), we let the nested object
inherit the 'precise'ness from its parent object.
- Add new keyword int64_t/uint64_t/i64vec/u64vec.
- Support 64-bit integer literals (dec/hex/oct).
- Support built-in operators for 64-bit integer type.
- Add implicit and explicit type conversion for 64-bit integer type.
- Add new built-in functions defined in this extension.
This is according to the expected KHR_vulkan_glsl without floating point.
So, floating-point spec-const operations no longer work, and that's
reflected in the tests.
Much about const or temp is mechanical, about actual declaration,
while much is semantic, about something higher level. This commit
checks every use everywhere, and for the high-level ones, substitutes
an encapsulated version instead.
r26192: Link-time sizing of implicitly-sized arrays and handling of anonymous blocks containing implicitly-sized members. Also changed "__anon" to "anon@" and encapsulated it.
r26240: Solidify the sharing of struct and array information between nodes and variables: A single copy now allows for simultaneously setting array size for all effected nodes and symbols of a given type. This allowed removal of ioArrayNodeResizeList and makes nodes of implicitly sized arrays know the final size.
r26241: Fix g++ issue with wanting non-const iterator.
git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@26218 e7fa87d3-cd2b-0410-9028-fcbf551c1848
Also
- uniformly handle EvqConstReadOnly as an input argument in a function, with
isParamInput() and isParamOutput() queries in TQualifier.
- provide a makeTemporary() in TQualifier, for erasing original qualification when making a temp
- provide a makeInternalVariable() call to make a shader variable not seen in the shader source
git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@25912 e7fa87d3-cd2b-0410-9028-fcbf551c1848
- moving offset calculations for std140/std430 from reflection to linkValidate.cpp
- applying the offset/align rules on top of std140/std430
- removing caching the structure's number of components (and correcting that this is components, not size)
git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@25174 e7fa87d3-cd2b-0410-9028-fcbf551c1848
