Create VariableExpression struct for referencing inlined variables.
In this CL, the result expression has been updated to use
VariableExpression; followup CLs will update the VariableRewriteMap to
leverage it as well.
This is intended to allow the inliner to inline simple expressions (such
as literals or swizzles) directly if they are not written to, instead of
making an extraneous copy.
Change-Id: I050057d8c3e940e5e44c22fde2f4bc37bb4c6754
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/318576
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2 files changed
