Temporarily limit x86 SIMD to SSE2 only, to see effect on all benches and bots.

src/opts/opts_check_x86.cpp

 /*
  * Copyright 2009 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapFilter_opts_SSE2.h"
 #include "SkBitmapProcState_opts_SSE2.h"
 #include "SkBitmapProcState_opts_SSSE3.h"
 #include "SkBlitMask.h"
 #include "SkBlitRect_opts_SSE2.h"
 #include "SkBlitRow.h"
 #include "SkBlitRow_opts_SSE2.h"
 #include "SkBlurImage_opts_SSE2.h"
 #include "SkMorphology_opts.h"
 #include "SkMorphology_opts_SSE2.h"
 #include "SkRTConf.h"
 #include "SkUtils.h"
 #include "SkUtils_opts_SSE2.h"
 #include "SkXfermode.h"
 #include "SkXfermode_proccoeff.h"
 
+// Temporarily disable everything but SSE2: crbug.com/372232.
+#if 1
+static inline bool supports_simd(int minLevel) {
+    SkASSERT(SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2);
+    return minLevel <= SK_CPU_SSE_LEVEL_SSE2;
+}
+#else
+
 #if defined(_MSC_VER) && defined(_WIN64)
 #include <intrin.h>
 #endif
 
 /* This file must *not* be compiled with -msse or any other optional SIMD
    extension, otherwise gcc may generate SIMD instructions even for scalar ops
    (and thus give an invalid instruction on Pentium3 on the code below).
    For example, only files named *_SSE2.cpp in this directory should be
    compiled with -msse2 or higher. */
 
@@ skipping 75 matching lines @@
          * instructions. So for that particular case we disable our SSSE3 options.
          */
         return false;
 #else
         static int gSIMDLevel = get_SIMD_level();
         return (minLevel <= gSIMDLevel);
 #endif
     }
 }
 
+#endif  // Temporarily disable everything but SSE2: crbug.com/372232.
+
 ////////////////////////////////////////////////////////////////////////////////
 
 SK_CONF_DECLARE( bool, c_hqfilter_sse, "bitmap.filter.highQualitySSE", false, "Use SSE optimized version of high quality image filters");
 
 void SkBitmapProcState::platformConvolutionProcs(SkConvolutionProcs* procs) {
     if (supports_simd(SK_CPU_SSE_LEVEL_SSE2)) {
         procs->fExtraHorizontalReads = 3;
         procs->fConvolveVertically = &convolveVertically_SSE2;
         procs->fConvolve4RowsHorizontally = &convolve4RowsHorizontally_SSE2;
         procs->fConvolveHorizontally = &convolveHorizontally_SSE2;
@@ skipping 241 matching lines @@
     } else {
         return SkPlatformXfermodeFactory_impl(rec, mode);
     }
 }
 
 SkXfermodeProc SkPlatformXfermodeProcFactory(SkXfermode::Mode mode);
 
 SkXfermodeProc SkPlatformXfermodeProcFactory(SkXfermode::Mode mode) {
     return NULL;
 }