John Stiles 4d6310ab20 Support half4 return values from main() in the SPIR-V code generator. ... This creates a helper function, _entrypoint, which invokes main() and assigns its result into sk_FragColor. We also make sure to prevent sk_FragColor from being dead-stripped from the code during IR generation. At present this is useful for allowing our SkSL test shaders to compile. Change-Id: I2d7fab0e1959a77778ffdb18ca569e869bcaeece Reviewed-on: https://skia-review.googlesource.com/c/skia/+/358525 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com>		2021-01-27 02:46:03 +00:00
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BoolFolding.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00
FloatFolding.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00
IntFoldingES2.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00
IntFoldingES3.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00
MatrixFoldingES2.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00
MatrixFoldingES3.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00
ShortCircuitBoolFolding.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00
VectorScalarFolding.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00
VectorVectorFolding.glsl	Support half4 return values from main() in the SPIR-V code generator.	2021-01-27 02:46:03 +00:00