Add support for SPV_KHR_non_semantic_info
This entails a couple of changes:
- Allowing unknown OpExtInstImport that begin with the prefix `NonSemantic.`
- Allowing OpExtInst that reference any of those sets to contain unknown
ext inst instruction numbers, and assume the format is always a series of IDs
as guaranteed by the extension.
- Allowing those OpExtInst to appear in the types/variables/constants section.
- Not stripping OpString in the --strip-debug pass, since it may be referenced
by these non-semantic OpExtInsts.
- Stripping them instead in the --strip-reflect pass.
* Add adjacency validation of non-semantic OpExtInst
- We validate and test that OpExtInst cannot appear before or between
OpPhi instructions, or before/between OpFunctionParameter
instructions.
* Change non-semantic extinst type to single value
* Add helper function spvExtInstIsNonSemantic() which will check if the extinst
set is non-semantic or not, either the unknown generic value or any future
recognised non-semantic set.
* Add test of a complex non-semantic extinst
* Use DefUseManager in StripDebugInfoPass to strip some OpStrings
* Any OpString used by a non-semantic instruction cannot be stripped, all others
can so we search for uses to see if each string can be removed.
* We only do this if the non-semantic debug info extension is enabled, otherwise
all strings can be trivially removed.
* Silence -Winconsistent-missing-override in protobufs
* Make pointers to logically matching types interchangeable with option.
DXC will be generating code where the function parameters will be a more
generic type that the actual parameter. They should be logically
matching and the decorations of the actual parameter must be a superset
of the decorations of the formal parameter.
We want to accept this code with an options so that spirv-opt can then
inline and fix the type mismatch. We will accept this under a new
options `--before-hlsl-legalization`.
The new option will also imply `relax-logical-pointer` so that HLSL
frontends will need to use just the one more generic option.
Moved the |LogicallyMatches| to the validation state to make it
available in more places. Also added a parameter to have it check the
decorations. I did not do a separate function for the decorations
because checking the decorations involves making sure the types
logically match anyway.
Fixes#2535
If relax-logical-pointer is enabled, this commit makes Validator
accept function param even when its Storage Class is different from
the expected one.
Related to #2423, #2430
In relaxed addressing mode, we want to accept non memory objects
because this is a very natural translation of hlsl. It should be fixed
by legalization by inlining the calls.
This is required to properly handle uses of forward declared ids. Since forward
declared ids were not being properly covered by the validator this uncovered a
bunch of small issues that needed to be resolved to get tests passing again.
Fixes#2373
* Moved function opcode validation out of idUsage and into new files
* minor style changes
* General opcode checking is in validate_function.cpp
* Execution limitation checking is in
validate_execution_limitations.cpp
* Execution limitations was split into a new pass as it requires other
validation to register those limitations first.
