GLSL Version : >= 150
Purpose:
Allow users to use features by enabling this extension, even in low versions.
Extension Name:
ARB_gpu_shader_fp64
Builtin-variables:
Nah
Builtin-functions:
functions overloaded for this extension, please check registry in reference.
Keywords:
Double
Features:
add support for type "double"
Reference:
https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_gpu_shader_fp64.txt
Add support for implicit conversion
1. Remove builtin double vertex (this is introduced by vertex_attrib_64bit
2. Add extension check and implicit conversion as double has been introduced
3. Add test results.
The changes to glslang/glslang/MachineIndependent/ParseHelper.cpp exist
purely to prevent even more instances of "warning: enumeration value
‘EOp...’ not handled in switch"
v2: Remove 8-bit types. Overzealous copy-and-paste led to adding
support for a bunch of types that the extension doesn't actually enable.
v3: Update expected test results file. Just changing an expected
results file to make a test pass seems sketchy to me, but I'm not sure
what else to do.
v4: Add missing entry for EOpAbsDifference in
TOutputTraverser::visitBinary. Noticed by JohnK.
According to the 32-bit counterparts, their forms should be
genI64Type findLSB(genI64Type value)
genI64Type findLSB(genU64Type value)
genI64Type findMSB(genI64Type value)
genI64Type findMSB(genU64Type value)
Focus was on the front end (not SPIR-V), minus the grammar.
Reduces #ifdef count by around 320 and makes the web build 270K smaller,
which is about 90% the target size.
The grammar and scanner will be another step, as will the SPIR-V backend.
This makes heavy use of methods #ifdef'd to return false as a global way
of turning off code, relying on C++ DCE to do the rest.
When processing Geometry and Tessellation Control/Evaluation shaders,
the builtins defined by GL_ARB_shader_ballot were not processed by
glslang. This specially a problem for gl_SubGroupSizeARB because, it is
treated as shader input instead of uniform on Vulkan.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Including spirv and AST tests
Also increase size of TBuiltInVariable bitfields since we've now exceeded 127
and add a static_assert to make this easier to find next time it happens!
