__mulodi4() is roughly,
int64_t __mulodi4(int64_t a, int64_t b, int* overflow) {
int64_t result = a*b;
*overflow = did_overflow(result);
return result;
}
It's used by Clang's __builtin_smulll_overflow(), which is basically the same
except it swaps the positions of the return value and the out parameter.
DNG SDK in turn uses __builtin_smulll_overflow().
When building ARMv7 binaries with Clang, __mulodi4() turns up as a missing symbol.
That's because it's defined in a separate compiler-rt library. I have not been
able to link that. Instead, I've provided our own trivial __builtin_smulll_overflow().
Before this patch both nanobench and DM failed dynamically linking __mulodi4(). After this patch nanobench runs for a while, eventually segfaulting. DM immediately segfaults.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2011073002
Review-Url: https://codereview.chromium.org/2011073002
What we've got here is a little GN MVP. It's lacking any knobs and doesn't yet build anything but libskia, zlib, libpng, and libjpeg-turbo. I've been hopping back and forth between Linux at work and Mac at home. These seem to be at least partially working, enough to build and run cmake/example.cpp.
The xcode backend seems to work. From here, we can start exploring how to handle other backends (cmake,Android make, Google3). There are a couple things I want to try:
- add another backend like vs or xcode to GN directly
- intercept via a custom toolchain
- reverse from ninja -t commands
That last option seems kind of fun.
This tries to piggyback on Chrome's GN setup as much as possible. Chrome's got quite a lot figured out, and we're basically required to do this if we want to have a single GN build system shareable by Chrome, our bots, and other clients.
This pulls in some new DEPS:
- build: Chrome's GN configuration, and much more
- buildtools: hashes for gn binary, pulled via hooks
- tools/clang: hashes for Chrome's clang, pulled via hooks into third_party/llvm-build
It additionally symlinks tools/gyp to third_party/externals/gyp. GN pulls some stuff from tools/gyp on Mac.
Have not yet tried building for Windows, Android, or iOS.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2087593002
Committed: https://skia.googlesource.com/skia/+/1d8de594f126b9a80bd8f8fa2005e90faf3b5b17
Review-Url: https://codereview.chromium.org/2087593002
Note that baselines have changed a little since I
recently started using clang.
201295.jpg on HP z620 (300x280)
Skia Xform sRGB Dst Before 0.378 ms
Skia Xform sRGB Dst After 0.322 ms
1.17x
Skia Xform 2.2 Dst Before 0.428 ms
Skia Xform 2.2 Dst After 0.395 ms
1.08x
QCMS Xform 0.418 ms
sRGB Dst vs QCMS 1.30x
2.2 Dst vs QCMS 1.06x
--------------------------------------------
Nexus 6P:
Skia Xform sRGB Dst Before 1.58 ms
Skia Xform sRGB Dst After 1.43 ms
Skia Xform 2.2 Dst Before 2.69 ms
Skia Xform 2.2 Dst After 2.62 ms
Dell Venue 8:
Skia Xform sRGB Dst Before 2.78 ms
Skia Xform sRGB Dst After 2.74 ms
Skia Xform 2.2 Dst Before 3.73 ms
Skia Xform 2.2 Dst After 3.64 ms
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2081933005
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
Review-Url: https://codereview.chromium.org/2081933005
Reason for revert:
gclient not happy on some bots
Original issue's description:
> GN
>
> What we've got here is a little GN MVP. It's lacking any knobs and doesn't yet build anything but libskia, zlib, libpng, and libjpeg-turbo. I've been hopping back and forth between Linux at work and Mac at home. These seem to be at least partially working, enough to build and run cmake/example.cpp.
>
> The xcode backend seems to work. From here, we can start exploring how to handle other backends (cmake,Android make, Google3). There are a couple things I want to try:
> - add another backend like vs or xcode to GN directly
> - intercept via a custom toolchain
> - reverse from ninja -t commands
> That last option seems kind of fun.
>
> This tries to piggyback on Chrome's GN setup as much as possible. Chrome's got quite a lot figured out, and we're basically required to do this if we want to have a single GN build system shareable by Chrome, our bots, and other clients.
>
> This pulls in some new DEPS:
> - build: Chrome's GN configuration, and much more
> - buildtools: hashes for gn binary, pulled via hooks
> - tools/clang: hashes for Chrome's clang, pulled via hooks into third_party/llvm-build
> It additionally symlinks tools/gyp to third_party/externals/gyp. GN pulls some stuff from tools/gyp on Mac.
>
> Have not yet tried building for Windows, Android, or iOS.
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2087593002
>
> Committed: https://skia.googlesource.com/skia/+/1d8de594f126b9a80bd8f8fa2005e90faf3b5b17TBR=bsalomon@google.com,mtklein@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review-Url: https://codereview.chromium.org/2088253002
What we've got here is a little GN MVP. It's lacking any knobs and doesn't yet build anything but libskia, zlib, libpng, and libjpeg-turbo. I've been hopping back and forth between Linux at work and Mac at home. These seem to be at least partially working, enough to build and run cmake/example.cpp.
The xcode backend seems to work. From here, we can start exploring how to handle other backends (cmake,Android make, Google3). There are a couple things I want to try:
- add another backend like vs or xcode to GN directly
- intercept via a custom toolchain
- reverse from ninja -t commands
That last option seems kind of fun.
This tries to piggyback on Chrome's GN setup as much as possible. Chrome's got quite a lot figured out, and we're basically required to do this if we want to have a single GN build system shareable by Chrome, our bots, and other clients.
This pulls in some new DEPS:
- build: Chrome's GN configuration, and much more
- buildtools: hashes for gn binary, pulled via hooks
- tools/clang: hashes for Chrome's clang, pulled via hooks into third_party/llvm-build
It additionally symlinks tools/gyp to third_party/externals/gyp. GN pulls some stuff from tools/gyp on Mac.
Have not yet tried building for Windows, Android, or iOS.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2087593002
Review-Url: https://codereview.chromium.org/2087593002
The following canonicalizations of path-backed GrShapes are added:
*convex shapes are stored with even/odd (or inv even/odd) fill.
*filled paths are closed.
*dashed paths ignore inverseness of the fill
This will improve the results of queries about the geometry that will be added in a future change.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2067283003
Review-Url: https://codereview.chromium.org/2067283003
