ergawy 1d0dc9be6d [MLIR][SPIRV] Add rewrite pattern to convert select+cmp into GLSL clamp.
Adds rewrite patterns to convert select+cmp instructions into clamp
instructions whenever possible. Support is added to convert:

- FOrdLessThan, FOrdLessThanEqual to GLSLFClampOp.
- SLessThan, SLessThanEqual to GLSLSClampOp.
- ULessThan, ULessThanEqual to GLSLUClampOp.

Reviewed By: mravishankar

Differential Revision: https://reviews.llvm.org/D93618
2020-12-23 15:47:19 +01:00
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