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* Add fkYAML submodule
* Generate slang-ir-inst-defs.h from slang-ir-inst-defs.yaml
* generate ir-inst-defs.h
* neaten things
* neaten inst def parser
* add rapidyaml submodule
* remove fkyaml
* remove fkyaml submodule
* remove use of ir-inst-defs.h
* format and warnings
* fix wasm build
* tidy
* remove rapidyaml
* Extend fiddle to allow custom splices in more places
* Use lua to describe ir insts
* fix
* neaten
* neaten
* neaten
* spelling
* neaten
* comment comment out assert
* merge
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* format
* Minor test fixes
* enable checking cpp format in ci
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* Add `target_switch` and `__intrinsic_asm` statement.
* Cleanup.
* WaveGetActiveMask, WaveGetActiveMask, WaveCountBits.
* WaveIsFirstLane.
* More wave intrinsics.
* wave intrinsics.
* merge fix.
* Fix.
* Fix.
* Update test.
* update test.
* Fix.
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Co-authored-by: Yong He <yhe@nvidia.com>
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* #include an absolute path didn't work - because paths were taken to always be relative.
* WIP lowerCamel Dictionary.
* WIP more lowerCamel fixes for Dictionary.
* Add/Remove/Clear
* GetValue/Contains
* Fix tabs in dictionary.
Count -> getCount
* Fix fields with caps.
* Key -> key
Value -> value
Use m_ for members where appropriate.
Use lowerCamel in linked list.
* Some small fixes/improvements to Dictionary.
* Kick CI.
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* Fix inlining pass.
* Add more check against corner cases.
* Revise comments.
* Fixes.
* Fix premake script.
* Fixes.
Co-authored-by: Yong He <yhe@nvidia.com>
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* Clean up `IRReturnVoid`.
* Update gitignore.
Co-authored-by: Yong He <yhe@nvidia.com>
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As part of generating high-level-language code, we have a pass that
builds a data structure representing structured control-flow `Region`s
and their nesting relationship. That data structure is then used
when emitting control-flow statements for the body of a function.
There are `Region` subtypes coresponding to different kinds of control
flow constructs. Both the `IfElseRegion` and `SwitchRegion` subtypes
were implemented to store a reference to the branch condition direclty
in the `Region`. This turns out to be the root cause of the problem.
After the nested `Region` structure is constructed, we have an IR pass
that uses the region hierarchy to detect and fix problems where the
implicit "scoping" rules of SSA form are incompatible with the scoping
rules that will be in effect when those regions are emitted as
high-level-language control-flow statements.
A bug arose when one of the SSA values that required the scoping fix
was the branch condition of an `if` statement. While the IR pass did
what it was supposed to and replaced the operand to the `IRIfElse`
instruction, doing so did not change the cached condition in the
corresponding `IfElseRegion`, and thus didn't effect the way code
got emitted for the `if(...)` condition in HLSL.
The fix here is simple: the relevant `Region` subtypes now store a
pointer to the relevant control-flow instruction rather than to
the branch condition. The emit logic can thus fetch the correct
condition from the control-flow instruction at the time it emits an
`if` or `switch`.
Note: We do not need to have the same worries around the `IRIfElse`
or `IRSwitch` instructions, nor for the `IRBlock`s that the `Region`s
still store. The passes that come after the `Region`s get created are
not supposed to alter the CFG in any way, because otherwise they would
risk changing/invalidating the `Region` structure.
Similarly, this change doesn't modify the `IRInst`s refernced in the
`Case`s for a `SwitchRegion` under the assumption that these must
always be literal integer constants, and thus cannot be changed out.
Co-authored-by: jsmall-nvidia <jsmall@nvidia.com>
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* Add an accessor for IRInst opcode
This main changing is renaming `IRInst::op` over to `IRInst::m_op` and then adds an accessor `IRInst::getOp()` to read it. The rest of the changes are just changing use sites to `getOp` (or to `m_op` in the limited cases where we write to it).
This work is in anticipation of a future change that might need to store an extra bit in the same field as the opcode. It seemed better to do this massive refactoring as a separate PR.
* fixup
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* Prefixing source files in source/slang with slang-
* Prefix source in source/slang with slang- prefix.
* Rename core source files with slang- prefix.
* Update project files.
* Fix problems from automatic merge.
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