diff --git a/gm/arcto.cpp b/gm/arcto.cpp
index 20528c8..46964b6 100644
--- a/gm/arcto.cpp
+++ b/gm/arcto.cpp
@@ -158,8 +158,7 @@
                 uint32_t y = rand.nextRangeU(30, 70);
                 uint32_t x = rand.nextRangeU(30, 70);
                 spec.printf("M %d,%d\n", x, y);
-                uint32_t count = rand.nextRangeU(0, 10);
-                for (uint32_t i = 0; i < count; ++i) {
+                for (uint32_t i = rand.nextRangeU(0, 10); i--; ) {
                     spec.append(MakeRandomParsePathPiece(&rand));
                 }
                 SkAssertResult(SkParsePath::FromSVGString(spec.c_str(), &path));
diff --git a/gm/bigrrectaaeffect.cpp b/gm/bigrrectaaeffect.cpp
index b5065a6..19e8fab 100644
--- a/gm/bigrrectaaeffect.cpp
+++ b/gm/bigrrectaaeffect.cpp
@@ -66,8 +66,6 @@
     SkISize onISize() override { return SkISize::Make(fWidth, fHeight); }
 
     DrawResult onDraw(GrRecordingContext* rContext, SkCanvas* canvas, SkString* errorMsg) override {
-        SkPaint paint;
-
         auto sdc = SkCanvasPriv::TopDeviceSurfaceDrawContext(canvas);
         if (!sdc) {
             *errorMsg = kErrorMsg_DrawSkippedGpuOnly;
diff --git a/gm/circulararcs.cpp b/gm/circulararcs.cpp
index 764fdd1..448473e 100644
--- a/gm/circulararcs.cpp
+++ b/gm/circulararcs.cpp
@@ -247,8 +247,7 @@
     canvas->translate(20, 0);
     canvas->drawPath(path.detach(), p0);
 
-    SkRect kRect = { 60, 0, 100, 40};
-    canvas->drawArc(kRect, 45, 90, true, p0);
+    canvas->drawArc(SkRect{60, 0, 100, 40}, 45, 90, true, p0);
 }
 
 DEF_SIMPLE_GM(crbug_888453, canvas, 480, 150) {
diff --git a/gm/coloremoji_blendmodes.cpp b/gm/coloremoji_blendmodes.cpp
index b0de25d..a2da3c9 100644
--- a/gm/coloremoji_blendmodes.cpp
+++ b/gm/coloremoji_blendmodes.cpp
@@ -121,7 +121,7 @@
         textP.setAntiAlias(true);
         SkFont textFont(fColorType, 70);
 
-        const int W = 5;
+        const int kWrap = 5;
 
         SkScalar x0 = 0;
         SkScalar y0 = 0;
@@ -156,7 +156,7 @@
                                     labelFont, SkPaint(), SkTextUtils::kCenter_Align);
 #endif
             x += w + SkIntToScalar(10);
-            if ((i % W) == W - 1) {
+            if ((i % kWrap) == kWrap - 1) {
                 x = x0;
                 y += h + SkIntToScalar(30);
             }
diff --git a/gm/typeface.cpp b/gm/typeface.cpp
index 9b25e0f..9be01d4 100644
--- a/gm/typeface.cpp
+++ b/gm/typeface.cpp
@@ -224,7 +224,7 @@
 
             for (const AliasType& alias : aliasTypes) {
                 font.setEdging(alias.edging);
-                SkAutoCanvasRestore acr(canvas, false);
+                SkAutoCanvasRestore acr1(canvas, false);
                 if (alias.inLayer) {
                     canvas->saveLayer(nullptr, &paint);
                 }
@@ -239,7 +239,7 @@
                         font.setHinting(hinting);
 
                         for (const bool& rotateABit : rotateABitTypes) {
-                            SkAutoCanvasRestore acr(canvas, true);
+                            SkAutoCanvasRestore acr2(canvas, true);
                             if (rotateABit) {
                                 canvas->rotate(2, x + subpixel.offset.x(),
                                                   y + subpixel.offset.y());
diff --git a/gm/vertices.cpp b/gm/vertices.cpp
index a1ac94a..7d57f0b 100644
--- a/gm/vertices.cpp
+++ b/gm/vertices.cpp
@@ -228,10 +228,10 @@
     SkTDArray<SkMatrix> matrices;
     matrices.push()->reset();
     matrices.push()->setTranslate(0, 40);
-    SkMatrix* m = matrices.push();
-    m->setRotate(45, kMeshSize / 2, kMeshSize / 2);
-    m->postScale(1.2f, .8f, kMeshSize / 2, kMeshSize / 2);
-    m->postTranslate(0, 80);
+    matrices.push()
+            ->setRotate(45, kMeshSize / 2, kMeshSize / 2)
+            .postScale(1.2f, .8f, kMeshSize / 2, kMeshSize / 2)
+            .postTranslate(0, 80);
 
     auto shader = make_shader1(1);