Revert to enabling all of -O2 as it exposes a bug in the toolchain.

gm/tilemodes_scaled.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gm.h"
 #include "SkPath.h"
 #include "SkRegion.h"
@@ skipping 55 matching lines @@
     };
 
     SkString onShortName() {
         SkString name("scaled_tilemodes");
         if (!fPowerOfTwoSize) {
             name.append("_npot");
         }
         return name;
     }
 
+#ifdef SK_CPU_ARM64
+    // Skip tiled drawing on 64-bit ARM until https://skbug.com/2908 is fixed.
+    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+        return this->INHERITED::onGetFlags() | GM::kSkipTiled_Flag;
+    }
+#endif
+
     SkISize onISize() { return SkISize::Make(880, 760); }
 
     virtual void onOnceBeforeDraw() SK_OVERRIDE {
         int size = fPowerOfTwoSize ? kPOTSize : kNPOTSize;
         for (size_t i = 0; i < SK_ARRAY_COUNT(gColorTypes); i++) {
             makebm(&fTexture[i], gColorTypes[i], size, size);
         }
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
@@ skipping 187 matching lines @@
 private:
     typedef skiagm::GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return new ScaledTilingGM(true); )
 DEF_GM( return new ScaledTilingGM(false); )
 DEF_GM( return new ScaledTiling2GM(make_bm, "bitmap"); )
 DEF_GM( return new ScaledTiling2GM(make_grad, "gradient"); )