This Cl updates the flow node tests to compare against a disassembled
output instead of explicit expect statements. This makes it easier to
see the structure of the IR and to determine any changes.
Bug: tint:1718
Change-Id: I5b8ab42ada4ba902e8937099c7058a39533f2010
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/116548
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
This CL updates the flow node to track the nodes which are inbound
to the current target. This allows to fix an issue with a loop,
after a continuing with a break, properly eliminating dead code.
This also allows always providing the merge target for an if, it
just knows if it's disconnected by having zero inbound branches.
Bug: tint:1718
Change-Id: Ia9b9dbc734bf1e9cd0c829093c0cb1e470efb32e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107800
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL starts adding the basics for an IR for Tint. The IR is
a lower level representation then the AST with several of the
restrictions removed. For example, the IR is mutable, is a DAG
instead of a tree, and removes a number of WGSL constructs to
simplify transforms.
Bug: tint:1718
Change-Id: I6a16ac3116cee31410896c3a0424af7b41f958c3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/105800
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
