Until we get off of ARC, these extra retains and releases can really
add up in previous profiling of Metal, especially on iOS.
Change-Id: Ib3aaa0b863c4469bdb6ad930395a170719c0293d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/381110
Commit-Queue: Adlai Holler <adlai@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
This is a reland of 7508b54af3
Original change's description:
> Reland "Add GrRuntimeFPBuilder"
>
> This is a reland of 4b39aaf2cb
>
> Original change's description:
> > Add GrRuntimeFPBuilder
> >
> > Like SkRuntimeShaderBuilder but for internal use for creating FPs.
> >
> > Currently it requires that the code be a static string so it can
> > easily make a static SkRuntimeEffect instance for each effect.
> >
> > Bug: skia:11771
> >
> > Change-Id: I18148eb33e7d28c804e4a13bcef88c89c06b2c9b
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386889
> > Commit-Queue: Brian Salomon <bsalomon@google.com>
> > Reviewed-by: Brian Osman <brianosman@google.com>
>
> Bug: skia:11771
> Cq-Include-Trybots: luci.skia.skia.primary:Build-Debian10-GCC-x86_64-Release-Shared_Docker,Build-Win-Clang-x86_64-Release-Shared,Build-Win-MSVC-x86_64-Release-Shared
> Change-Id: I10a7974aa209f9cd63a5dc1ef21a36822b49bda3
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/388097
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>
Bug: skia:11771
Change-Id: Id20797ecf5b34847fdc22e28d3e68db88f2519c3
Cq-Include-Trybots: luci.skia.skia.primary:Canary-Android
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/388458
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
On ARM GPUs, the Vulkan driver does not honor relaxed precision when
evaluating SpvOpMatrixTimesVector. This leads to reduced performance
(compared to GLSL, where mediump matrices and floats do evaluate all
intermediate values at mediump).
This caps bit will be enabled on ARM GPUs and, in a followup CL, will
be used to toggle a workaround where `m*v` is rewritten as the sum of
(m[0]*v[0] + m[1]*v[1] + ... + m[N]*v[N]).
Change-Id: I310fa73639b6498552c9672e76860f2eded15d0a
Bug: skia:11769
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/388459
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
This reverts commit 7508b54af3.
Reason for revert: android roll
Original change's description:
> Reland "Add GrRuntimeFPBuilder"
>
> This is a reland of 4b39aaf2cb
>
> Original change's description:
> > Add GrRuntimeFPBuilder
> >
> > Like SkRuntimeShaderBuilder but for internal use for creating FPs.
> >
> > Currently it requires that the code be a static string so it can
> > easily make a static SkRuntimeEffect instance for each effect.
> >
> > Bug: skia:11771
> >
> > Change-Id: I18148eb33e7d28c804e4a13bcef88c89c06b2c9b
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386889
> > Commit-Queue: Brian Salomon <bsalomon@google.com>
> > Reviewed-by: Brian Osman <brianosman@google.com>
>
> Bug: skia:11771
> Change-Id: I10a7974aa209f9cd63a5dc1ef21a36822b49bda3
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/388097
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>
TBR=bsalomon@google.com,brianosman@google.com
Change-Id: I01a1567edd4162f1054137886052f5065a9e6175
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:11771
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/388397
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Change-Id: I22837a4921238749664217e595d24d196503534d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/388096
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
into a new GrGLSLGeometryProcessor. Since NVPR is no more this
distinction (between GLSL- Primitive and Geometry -Processor)
probably isn't needed/useful.
Bug: skia:11760
Change-Id: I75621725bd2b0ef3dbac2ea6449bd571551babab
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/388036
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
This is a reland of 4b39aaf2cb
Original change's description:
> Add GrRuntimeFPBuilder
>
> Like SkRuntimeShaderBuilder but for internal use for creating FPs.
>
> Currently it requires that the code be a static string so it can
> easily make a static SkRuntimeEffect instance for each effect.
>
> Bug: skia:11771
>
> Change-Id: I18148eb33e7d28c804e4a13bcef88c89c06b2c9b
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386889
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
Bug: skia:11771
Cq-Include-Trybots: luci.skia.skia.primary:Build-Debian10-GCC-x86_64-Release-Shared_Docker,Build-Win-Clang-x86_64-Release-Shared,Build-Win-MSVC-x86_64-Release-Shared
Change-Id: I10a7974aa209f9cd63a5dc1ef21a36822b49bda3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/388097
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Removed error tests which no longer test anything:
- UseWithoutInitialize...: we no longer track variable use-before-init.
- InlineDivideByZero: we no longer constant-fold the result of an
inlined function call into its parent statement.
- Unreachable: we no longer report unreachable statements.
And fixed some minor test-case issues:
- StaticSwitchConditionalBreak: we still check this, but the function
was being dead-stripped before this check could run. Renamed to main.
- OssFuzzXxxxx: these cases no longer report errors, but they are still
valuable as regression tests; moved to `shared/`.
Change-Id: Iade3cff821dc998cacfd02f62d3ac4625e48904c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/387820
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
With the removal of NVPR we no longer need this distinction.
Bug: skia:11760
Change-Id: I225a4feb764395fb72aca3ffc8b6d05396bf0b1e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386890
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
This reverts commit 4b39aaf2cb.
Reason for revert: DLL fail
Original change's description:
> Add GrRuntimeFPBuilder
>
> Like SkRuntimeShaderBuilder but for internal use for creating FPs.
>
> Currently it requires that the code be a static string so it can
> easily make a static SkRuntimeEffect instance for each effect.
>
> Bug: skia:11771
>
> Change-Id: I18148eb33e7d28c804e4a13bcef88c89c06b2c9b
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386889
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
TBR=bsalomon@google.com,brianosman@google.com
Change-Id: I13e22674a1bcb07b86342189bab84fc6cbb357e9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:11771
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/387817
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
The gn_to_bp.py script generates projects with is_official_build=true.
This means that gn/skia:warnings is not applied. This means that a
number of warnings are not turned on, but it also means a number of
warnings are not turned off. Directly suppress several warnings which
were previously always suppressed.
Change-Id: Iefe48f663d47e39f36e21f2200417a33b2389508
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/387836
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
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>
Like SkRuntimeShaderBuilder but for internal use for creating FPs.
Currently it requires that the code be a static string so it can
easily make a static SkRuntimeEffect instance for each effect.
Bug: skia:11771
Change-Id: I18148eb33e7d28c804e4a13bcef88c89c06b2c9b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386889
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
In the build there are some defaults which actually apply to every
use of a built-in target type, but there are some (particularaly
warnings) which apply only to targets controlled by Skia. Currently
these unwanted defaults are magically known to exist and removed
wherever they are not wanted. Instead, create 'skia_' prefixed target
templates and apply these defaults to those instead.
Change-Id: I3a2afb53c7205a2e2748d1cfad46319f2e93d3b3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/385516
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Change-Id: If5fb4f99d327bb429f60e8d6c526720dd02b0928
Bug: skia:11342
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386800
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
We don't currently do FunctionCall optimization, but implementing
something along the lines of skia:10835 would probably involve doing
rewrites for optimization in FunctionCall::Make. This CL is the first
step down that road.
Change-Id: I249b02412e7ebac21bb98d6c5d61af3dcd6f1e69
Bug: skia:11342
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/387156
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
This is a reland of 579728eb19
Original change's description:
> Add SVG to default modules list
>
> This enables SVG to build in official builds.
>
> Change-Id: I4f64109983216baf9663061e23cc3757292ff448
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386096
> Reviewed-by: Florin Malita <fmalita@google.com>
> Commit-Queue: Tyler Denniston <tdenniston@google.com>
Change-Id: I8bb93f3881e69f7b4461981a4f0f95a87fed0976
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/386557
Reviewed-by: Florin Malita <fmalita@google.com>
Commit-Queue: Tyler Denniston <tdenniston@google.com>
It turns out it is not legal to pass the results of OpAccessChain as a
function argument, for... reasons. This CL switches us over to passing
the argument via a temp variable instead.
Bug: skia:11748
Change-Id: Ib5e86c1d000655ebd7bb62ceea6a27b823808645
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/385936
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
This allows us to remove 100 LOC from the inliner and is very unlikely
to affect any existing benchmark. We don't have any evidence to support
the idea that a one-iteration `for` loop with `continue`-based exits
will be any faster than a standard function call on any existing GPU.
Our fragment processors are generally written to avoid early returns,
in large part to avoid hitting this path.
This drastically impacts BlendEnum.sksl (which can no longer flatten out
a switch over every blend function in SkSL) but is otherwise a wash.
See: http://go/optimization-in-sksl-inliner suggestion 4(a)
Change-Id: I1f9c27bcd7a8de46cc4e8d0b9768d75957cf1c50
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/385377
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Block::Make always makes a real Block object. This is important because
many callers rely on Blocks specifically; e.g. a function body must be a
scoped Block, nothing else will do.
However, unscoped Blocks are just a collection of Statements and usually
have more flexibility. So, Block::MakeUnscoped is a factory function
that will return the Statement as-is for a single-statement unscoped
Block. For an entirely empty Block, MakeUnscoped returns Nop.
Change-Id: Ied65d505bde4ea7f6157a039944018546e4b7333
Bug: skia:11342
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/384180
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
This reverts commit a04692f69e.
Reason for revert: Angry Vulkan bots.
Original change's description:
> Fixed a number of spots where we should have been using RelaxedPrecision
>
> Our SPIR-V output was missing many RelaxedPrecision decorations, which
> was presumably impacting performance.
>
> Change-Id: Iee32d4a42f37af167fe0e45f3db94c2142129695
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/384178
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
TBR=egdaniel@google.com,brianosman@google.com,ethannicholas@google.com,johnstiles@google.com
Change-Id: If4fe945cb363c9b61b5a4abfde649a437689d2eb
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/384217
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Our SPIR-V output was missing many RelaxedPrecision decorations, which
was presumably impacting performance.
Change-Id: Iee32d4a42f37af167fe0e45f3db94c2142129695
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/384178
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
This converts ccpr to just a poorly named atlas manager. The atlas
gets rendered by normal calls on its MSAA draw context:
for (;;) {
surfaceDrawContext->stencilPath(); // Stencil.
}
surfaceDrawContext->stencilRect(atlasBounds); // Cover.
Bug: chromium:1158093
Change-Id: I758ffd372b2ed5bb8b370156b6f80f6204146700
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/381618
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
All that's left is a clip atlas renderer.
Bug: chromium:1158093
Change-Id: I8b509904a752a202ff1321e5302c41a3f57a5edb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/383741
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
We no longer derive a performance benefit from this pass in practice,
and it is a very expensive compilation step. It is also prone to fuzz-
related errors.
Doc: http://go/optimization-in-sksl
Change-Id: Ief08ffac659a8fe7fe92c92b9a5da14c9f713bc2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/381261
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
This declutters the atlas generation code so there are fewer variables.
Next we will delete all the lower level rendering code and render the
atlas with stencilPath/stencilRect instead.
Bug: chromium:1158093
Change-Id: I36cff285d0f7de6f8ece4b027e62ae84aa01adc8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/380656
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
As you might expect, a function tagged with `noinline` will never be
considered as a candidate for inlining.
Change-Id: Ia098f8974e6de251d78bb2a76cd71db8a86bc19c
Bug: skia:11362
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/382337
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
This reverts commit dc3d678712.
Reason for revert: Crashing on exit thread handler
Original change's description:
> Reland "cache the creation of one GrAtlasTextOp"
>
> This is a reland of 4b1fb7ca90
>
> Original change's description:
> > cache the creation of one GrAtlasTextOp
> >
> > GrAtlasTextOp has a high probability of being merged with the
> > previous op. This cache keeps using the same op to merge with
> > keeping memory warm.
> >
> > This show about 5.75% improvement in skpbench on desk_nytimes.
> >
> > When compiling for ios 9 or earlier, this optimization is
> > disabled.
> >
> > Change-Id: I13ccbef6dcd4b9d82103bf20bba7d94f3e4fb6f4
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/376718
> > Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> > Reviewed-by: Brian Salomon <bsalomon@google.com>
> > Commit-Queue: Herb Derby <herb@google.com>
>
> Change-Id: I935a2965062b1fddb28806e85eb0fe055ba46ec2
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/380320
> Commit-Queue: Herb Derby <herb@google.com>
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
TBR=bsalomon@google.com,herb@google.com,michaelludwig@google.com
Change-Id: I3bc3329580460fcf8c0b49f655a88cb902da3d58
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/382556
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Herb Derby <herb@google.com>
This is a reland of 4b1fb7ca90
Original change's description:
> cache the creation of one GrAtlasTextOp
>
> GrAtlasTextOp has a high probability of being merged with the
> previous op. This cache keeps using the same op to merge with
> keeping memory warm.
>
> This show about 5.75% improvement in skpbench on desk_nytimes.
>
> When compiling for ios 9 or earlier, this optimization is
> disabled.
>
> Change-Id: I13ccbef6dcd4b9d82103bf20bba7d94f3e4fb6f4
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/376718
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Herb Derby <herb@google.com>
Change-Id: I935a2965062b1fddb28806e85eb0fe055ba46ec2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/380320
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Currently, only one of three uses (local variables) does this correctly.
Bug: skia:11716
Change-Id: Iad11e8e5998fcc7caee4d438e0558c5d4e2b1821
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/382277
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
It turned out that everywhere we were using or testing DSL code either
directly or indirectly imported big chunks of the SkSL library. These
imports turned out to be necessary; code written using just DSL.h would
fail with various template instantiation errors.
Change-Id: Iae72d15b0d6ef14614ac1a4ff08c36bc1876cd4d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/381638
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Also removes the CCPR stuff prior to its deletion.
Change-Id: I63db69ed4a66a11a2006c82e403d89c89af153eb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/380596
Reviewed-by: Tyler Denniston <tdenniston@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Change-Id: I7a7874e58bf53978afce8a41b26092406b6490ed
Bug: skia:11342
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/380360
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
This enables the ternary to be optimized away in code like:
const bool SHINY = true;
color = SHINY ? add_shine(x) : x; // to --> `color = add_shine(x);`
Without constant propagation.
Also, I added a unit test for ternary expression simplification; I
wasn't able to find an existing one.
When the optimization flag is disabled, this CL actually removes the
optimization of `true ? x : y` --> `x` entirely; previously, this
substitution would be made regardless of optimization settings.
Change-Id: I93a8b9d4027902d35f8a19cfd6417170b209d056
Bug: skia:11343
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/379297
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Makes SkImage_Gpu backed by two proxies, an original and a copy. The
image uses the original until a new render task is bound to it at which
point further uses of the image will use the copy. If the image is ever
used off a GrDirectContext we fall over to the copy. If the copy is
never used and never can be used by the next flush then the render
task that populates it is marked "skipped" and we don't perform the
copy.
Bug: skia:11208
Change-Id: Id255f4a733acc608c8a53c1a5633207aeafc404b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/366282
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This is a reland of 40a9061203
Original change's description:
> rename GrSDFTOptions to GrSDFTControl
>
> Change-Id: Ie03fce7a99a9f71b18d54e3cd35e7675fb7f8912
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/379616
> Commit-Queue: Herb Derby <herb@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>
Change-Id: Iba0816159a8ef99448a0040c487e56700b96be5d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/379845
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
Change-Id: Icb2d8ce9ac75454b89342aa737d563cf45eaba3e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/379756
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Herb Derby <herb@google.com>
This check now runs at function finalization time, before constant
propagation has occurred; this affected the "DeadIfStatement" test.
Our detection isn't smart enough to realize that a loop will run zero
times, so it treats `for` and `while` loops as always running at least
once. This isn't strictly correct, but it actually mirrors how the CFG
implementation works anyway. The only downside is that we would not flag
code like `for (i=0; i<0; ++i) { return x; }` as an error.
Change-Id: I5e43a6ee3a3993045559f0fb0646d36112543a94
Bug: skia:11377
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/379056
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
In addition to the unsurprising changes to eliminate references to
src/, we also had to tighten up some C++17-isms as they are not
permitted in public headers.
Change-Id: Ie5005a33d7a135e69fb66beca5e7a5f960dbd453
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/378496
Reviewed-by: Brian Osman <brianosman@google.com>
This should be legal, and we support this, but some versions of Android
do not: http://screen/3bkQewHF3xUMn5v There's no point in allowing
these shaders to exist; they can't compile on real-world clients, and
these vardecls are borderline meaningless (as the variables being
declared aren't reachable by any other statements).
Change-Id: Ie1351933c90caee9124eeab8983364ec030b2653
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/379584
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
