Makes some white-space differences in most output, plus a few cases
where more could have been put out but was cut short by the previous
fix-sized buffer.

Fixes issue #610. Also provides a testing option to keep uncalled functions.

Rationalizes the entire tracking of the linker object nodes, effecting
GLSL, HLSL, and SPIR-V, to allow tracked objects to be fully edited before
their type snapshot for linker objects.

Should only effect things when the rest of the AST contained no reference to
the symbol, because normal AST nodes were not stale. Also will only effect such
objects when their types were edited.

Backward incompatible: Turn on PureOperatorBuiltins: use only enum-based built-in functions in the AST.

If this breaks your AST consumer, best is to modify it to test
against the enum values instead of doing string comparisons on
built-in function names.  This is the reason the change was made.

If you need the old behavior, you should be able to get it back by changing
PureOperatorBuiltins to be false instead of true.  This path will work for
a while, but is marked deprecated.

Also, the old behavior is tagged as release 2.4.

glslang: Formally track all built-in variables, right from the beginning, to enable avoiding all textual compares at any subsequent stage in the stack.  (To be used in future check ins.)


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31224 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@30975 e7fa87d3-cd2b-0410-9028-fcbf551c1848

glslang AST output: include global vs. temp (local) in the printed output.  This only effects test results, but a future check-in is going to fix some globals.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@30973 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Implement GL_ARB_shader_image_load_store.  Partly done (format layout qualifiers) from a submission.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@27670 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Finish GL_ARB_shading_language_420pack: *ProgramTexelOffset built-in constants.  Also, make comma operation not fold constants.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@26602 e7fa87d3-cd2b-0410-9028-fcbf551c1848

420Pack:  Implement length() on vectors and matrices.  Also, tweak line-continuation semantics to understand the extension.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@26601 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Allow the pre-150 built-in redeclarations when using SSO: gl_Position, gl_PointSize, gl_ClipVertex, and gl_FogFragCoord.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@26399 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Establish desktop completeness through version 1.50.  (gl_MaxVaryingFloats, implicit-cconversion safety, cube-sampler-array fix, add tests)

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@26253 e7fa87d3-cd2b-0410-9028-fcbf551c1848

r26245: Remove "not yet complete" warning for versions 130 and 140, after tidying up a bit and adding tests.  Token pasting is the only known missing feature, and gives its own message now on use.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@26226 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Non-functional, infrastructure:  Be more explicit about "implicit array sizes", improving the infrastructure for handling them.  Also fix some output that was too big for its buffer.

There is more upcoming functionality for link-time sizing of implicitly-sized arrays that will use this.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@26176 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Track which extensions were enabled or required, in the intermediate representation, for reflection of the consumer.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@26155 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Correct which versions can support the extensions GL_ARB_separate_shader_objects and GL_ARB_shading_language_420pack.  They'd only gone back to 150, rather than 130/140.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@25314 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@25025 e7fa87d3-cd2b-0410-9028-fcbf551c1848

 - add extension behavior and warning message for partial extension support
 - add partial support for gpu_shader5 for textureGather*
 - add interactions between texture rectangle and textureGather*
 - add checks to distinguish between gpu_shader5 and texture_gather extension feature differences


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24183 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Track what ins/outs/uniforms are used, so that errors like "declare after use" or "can't use both XXX and YYY" can be issued.  So far, used this for invariant, gl_FragColor et. al., and gl_FragCoord use before redeclaration.

Also made all tests in testlist include linker tests.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24156 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Added constant folding for relational (e.g. lessThan) built-ins, relational built-ins for uints, and bitwise ops for mixed scalars and vectors.

Also, allow comments to precede "#version 100".

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23974 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Complete hook up all the compile/link errors to the command-line exit status. (Also, an updated test left from the last check-in.)


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23961 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Stop emitting the "#version missing" warning, and hook up the existing "suppress warnings" to a command-line option (-w).


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23952 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Clean up/resolve a bunch of TODO, which included implementing pixel_center_integer and origin_upper_left and adjusting what versions see legacy texturing names.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23874 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Fix bug where bracket dereferences were incorrectly keeping the base's qualifier (for example constBase[i] would still be a const instead of EvqTemporary).


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23722 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23698 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23631 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Add all built-in variables for all versions/profiles/stages of GLSL. Also, made more readable; declarations are cut and paste from the specs, with quotes around them.  This does not include built-in constants yet (other than MaxClipDistances), just the non-constants.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23551 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23313 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Unify the 8 grammar productions for declaring variables.  This greatly simplifies making changes for this set of productions.

This change also naturally picks up redeclarations of built-in arrays and the addition of the remaining linker objects of const, arrays, etc.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23246 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22602 e7fa87d3-cd2b-0410-9028-fcbf551c1848