This CL adds the ability to convert a for statement into a loop control
flow node.
Bug: tint:1718
Change-Id: Ibd55ae3b202518d3362267eaa1f507dce6a9fe56
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107804
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
This CL adds `while` statement support into the IR builder, converting
them into loop flow nodes.
Bug: tint:1718
Change-Id: I6dbaa24a0082463281dc933f02805169836fedd6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107803
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL adds `fallthrough` support to the IR building. Fallthrough is
deprecated but needs to be supported until removed from Tint.
Bug: tint:1718
Change-Id: I52ce4cc9953384a450ad09422b2ba38943284a42
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107802
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL updates the IR builder to create control flow nodes for
a switch statement and the contained case statements.
Bug: tint:1718
Change-Id: I05b73db11ab14676cc123f436ae5912b1dbee0d5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107801
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>
