Commit Graph

10 Commits

Author SHA1 Message Date
John Stiles
ece1d794b9 Mangle function names in GLSL.
This will be implemented in Metal and SPIR-V in followup CLs.

Change-Id: I397b4db40b15dd54cf1d8a17f414c3fe184b48d2
Bug: skia:10851
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/387638
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-03-22 17:18:26 +00:00
John Stiles
b66645830d Only run the inliner one time.
This saves a significant amount of CPU time and, now that the inliner
can handle nested expressions, still inlines almost everything.

Change-Id: I8f198630fa9627bc433ef8fb72f6bcf94595cdaa
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386917
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2021-03-19 17:02:21 +00:00
John Stiles
049f0dfaba Reduce unnecessary scratch variables in Inliner.
Arguments without side-effects that aren't read from more than once can
be moved directly into the inlined function, and don't need a scratch
variable. This can allow functions like `guarded_divide` to inline
completely in more cases.

Change-Id: I0bfce35635cf9779f4af1bc0790da966ccfe4230
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386678
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2021-03-19 14:10:29 +00:00
Brian Osman
8c595fed7c Change sksl tests to avoid SPIR-V validation errors
'in' variables without locations aren't allowed. Use uniforms instead.

Bug: skia:11738
Change-Id: Ic066106deb7409cff154b4be7cfb3e03a7025c7d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/385000
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
2021-03-16 13:39:53 +00:00
John Stiles
132cfdd49d Revert "Inline functions of the form 'return (expr)' only."
This reverts commit 92748af1a5.

Reason for revert: SkSLCommaSideEffects_GPU crashing on Android

Original change's description:
> Inline functions of the form 'return (expr)' only.
>
> This drastically reduces the number of functions which we allow to be
> inlined. If this change does not hurt our performance, it will allow us
> to trivially remove hundreds of LOC. All current data leads us to
> believe that it may affect the Mali 400 but is highly unlikely to change
> results on any other device in the tree.
>
> More info: http://go/optimization-in-sksl-inliner
>
> Change-Id: Ia6b706742ce5407453e0e697b6c1f9201084c0e8
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/384858
> Auto-Submit: John Stiles <johnstiles@google.com>
> Commit-Queue: John Stiles <johnstiles@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
> Reviewed-by: Ethan Nicholas <ethannicholas@google.com>

TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com

Change-Id: I6a670dacaa58fe3386ff50375ac6d1cac4fd7f2c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/385161
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2021-03-15 22:08:48 +00:00
John Stiles
92748af1a5 Inline functions of the form 'return (expr)' only.
This drastically reduces the number of functions which we allow to be
inlined. If this change does not hurt our performance, it will allow us
to trivially remove hundreds of LOC. All current data leads us to
believe that it may affect the Mali 400 but is highly unlikely to change
results on any other device in the tree.

More info: http://go/optimization-in-sksl-inliner

Change-Id: Ia6b706742ce5407453e0e697b6c1f9201084c0e8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/384858
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2021-03-15 19:46:46 +00:00
John Stiles
e8b5a73b56 Remove extraneous line-breaks in generated GLSL/Metal code.
I ran into an issue in an upcoming CL which generated a particularly
ugly switch statement:

    switch (x) {
        default:
             discard;}

So I cleaned this up, and while resolving this issue, managed to improve
a bunch of existing codegen as well. The formatting change has been
split out to a separate CL since it impacts so many golden outputs.

Change-Id: I7a6be29903c47560dcc7f6acd3ef15fd0c5c3c50
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/384179
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2021-03-12 18:39:57 +00:00
John Stiles
511c500ad4 Avoid generating unused variables in the Inliner.
These variables were later being eliminated by the dead-code-elimination
pass, so you can't see them directly in the final output, but removing
them affects the name mangling off all future symbols, so it causes an
enormous ripple effect in the diff. And of course, it's a waste of time
and memory to synthesize IRNodes just to destroy them later.

If we disable control-flow analysis, we lose the dead-code-elimination
pass entirely; this change is also beneficial for emitting better code
when optimizations are turned off.

Change-Id: I882b3be4f3fd99b77d99b6abe128f26bb9252c89
Bug: skia:11319
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/375776
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2021-02-25 19:18:19 +00:00
Brian Osman
73122aa45f Use guarded_divide in more blend functions
Fixes another instance of anglebug.com/2098 with advanced blend
functions.

Change-Id: I91863723d8b4c33ab2f5a527fe0374e8947bba16
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/368813
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2021-02-10 21:59:26 +00:00
John Stiles
bfc9be0f77 Migrate SkSL test inputs to the resources/ directory.
This will allow us to load these inputs for unit testing in `dm`.

Change-Id: Id256ba7c30d3ec94b98048e47af44cf9efe580d5
Bug: skia:11009
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/357282
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-01-22 18:57:29 +00:00