commit 9b1efe253ccb2701b564b5affbefc9b43467633e
author Mike Klein <mtklein@google.com> Mon Apr 27 11:15:44 2020 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Mon Apr 27 17:06:19 2020 +0000
tree 4cd14c25894b216376040923e4acb736956f01a3
parent f3dca0bee180884cd3fd26a149028d8238bd612b

try skipping _cvtmask64_u64

This may or may not work.

Change-Id: I0be7517deafe7f27087e782782a7e135110ddebe
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/285683
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>

src/opts/SkBlitRow_opts.h

diff --git a/src/opts/SkBlitRow_opts.h b/src/opts/SkBlitRow_opts.h
index 74aca0e..3dbd43d 100644
--- a/src/opts/SkBlitRow_opts.h
+++ b/src/opts/SkBlitRow_opts.h
@@ -204,8 +204,8 @@
         const auto alphaMask = _mm512_set1_epi32(0xFF000000);
 
         auto ORed = _mm512_or_si512(s3, _mm512_or_si512(s2, _mm512_or_si512(s1, s0)));
-        if (0 == _cvtmask64_u64(_mm512_cmpneq_epi8_mask(_mm512_and_si512(ORed, alphaMask),
-                                                        _mm512_setzero_si512()))) {
+        if (0 == _mm512_cmpneq_epi8_mask(_mm512_and_si512(ORed, alphaMask),
+                                         _mm512_setzero_si512())) {
             // All 64 source pixels are transparent.  Nothing to do.
             src += 64;
             dst += 64;
@@ -219,8 +219,8 @@
              d3 = (__m512i*)(dst) + 3;
 
         auto ANDed = _mm512_and_si512(s3, _mm512_and_si512(s2, _mm512_and_si512(s1, s0)));
-        if (0 == _cvtmask64_u64(_mm512_cmpneq_epi8_mask(_mm512_and_si512(ANDed, alphaMask),
-                                                        alphaMask))) {
+        if (0 == _mm512_cmpneq_epi8_mask(_mm512_and_si512(ANDed, alphaMask),
+                                         alphaMask)) {
             // All 64 source pixels are opaque.  SrcOver becomes Src.
             _mm512_storeu_si512(d0, s0);
             _mm512_storeu_si512(d1, s1);