pathops coincidence and security rewrite

Most changes stem from working on an examples bracketed
by #if DEBUG_UNDER_DEVELOPMENT  // tiger
These exposed many problems with coincident curves,
as well as errors throughout the code.

Fixing these errors also fixed a number of fuzzer-inspired
bug reports.

* Line/Curve Intersections
Check to see if the end of the line nearly intersects
the curve. This was a FIXME in the old code.

* Performance
Use a central chunk allocator.
Plumb the allocator into the global variable state
so that it can be shared. (Note that 'SkGlobalState'
is allocated on the stack and is visible to children
functions but not other threads.)

* Refactor
Let SkOpAngle grow up from a structure to a class.
Let SkCoincidentSpans grow up from a structure to a class.
Rename enum Alias to AliasMatch.

* Coincidence Rewrite
Add more debugging to coincidence detection.
Parallel debugging routines have read-only logic to report
the current coincidence state so that steps through the
logic can expose whether things got better or worse.

More functions can error-out and cause the pathops
engine to non-destructively exit.

* Accuracy
Remove code that adjusted point locations. Instead,
offset the curve part so that sorted curves all use
the same origin.
Reduce the size (and influence) of magic numbers.

* Testing
The debug suite with verify and the full release suite
./out/Debug/pathops_unittest -v -V
./out/Release/pathops_unittest -v -V -x
expose one error. That error is captured as cubics_d3.
This error exists in the checked in code as well.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2128633003

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2128633003

Review-Url: https://codereview.chromium.org/2128633003

1 files changed, 432 insertions, 42 deletions

diff --git a/tests/PathOpsOpTest.cpp b/tests/PathOpsOpTest.cpp
index e22a2166ee..14c9251f2f 100644
--- a/tests/PathOpsOpTest.cpp
+++ b/tests/PathOpsOpTest.cpp
@@ -1196,7 +1196,7 @@ static void rRect1(skiatest::Reporter* reporter, const char* filename) {
     path.setFillType(SkPath::kInverseEvenOdd_FillType);
     for (int index = 0; index < 5; ++index) {
         testPathOp(reporter, path, paths[index], ops[index], filename);
-        Op(path, paths[index], ops[index], &path);
+        REPORTER_ASSERT(reporter, Op(path, paths[index], ops[index], &path));
     }
 }
 
@@ -3477,27 +3477,27 @@ static void issue2753(skiatest::Reporter* reporter, const char* filename) {
 static void issue2808(skiatest::Reporter* reporter, const char* filename) {
     SkPath path1, path2;
 
-	path1.moveTo(509.20300293f, 385.601989746f);
-	path1.quadTo(509.20300293f, 415.68838501f, 487.928710938f, 436.96270752f);
-	path1.quadTo(466.654388428f, 458.236999512f, 436.567993164f, 458.236999512f);
-	path1.quadTo(406.4815979f, 458.236999512f, 385.207275391f, 436.96270752f);
-	path1.quadTo(363.932983398f, 415.68838501f, 363.932983398f, 385.601989746f);
-	path1.quadTo(363.932983398f, 355.515594482f, 385.207275391f, 334.241271973f);
-	path1.quadTo(406.4815979f, 312.96697998f, 436.567993164f, 312.96697998f);
-	path1.quadTo(466.654388428f, 312.96697998f, 487.928710938f, 334.241271973f);
-	path1.quadTo(509.20300293f, 355.515594482f, 509.20300293f, 385.601989746f);
-	path1.close();
-
-	path2.moveTo(449.033996582f, 290.87298584f);
-	path2.quadTo(449.033996582f, 301.028259277f, 441.853149414f, 308.209106445f);
-	path2.quadTo(434.672271729f, 315.389984131f, 424.516998291f, 315.389984131f);
-	path2.quadTo(414.361724854f, 315.389984131f, 407.180847168f, 308.209106445f);
-	path2.quadTo(400, 301.028259277f, 400, 290.87298584f);
-	path2.quadTo(400, 280.717712402f, 407.180847168f, 273.536865234f);
-	path2.quadTo(414.361724854f, 266.355987549f, 424.516998291f, 266.355987549f);
-	path2.quadTo(434.672271729f, 266.355987549f, 441.853149414f, 273.536865234f);
-	path2.quadTo(449.033996582f, 280.717712402f, 449.033996582f, 290.87298584f);
-	path2.close();
+    path1.moveTo(509.20300293f, 385.601989746f);
+    path1.quadTo(509.20300293f, 415.68838501f, 487.928710938f, 436.96270752f);
+    path1.quadTo(466.654388428f, 458.236999512f, 436.567993164f, 458.236999512f);
+    path1.quadTo(406.4815979f, 458.236999512f, 385.207275391f, 436.96270752f);
+    path1.quadTo(363.932983398f, 415.68838501f, 363.932983398f, 385.601989746f);
+    path1.quadTo(363.932983398f, 355.515594482f, 385.207275391f, 334.241271973f);
+    path1.quadTo(406.4815979f, 312.96697998f, 436.567993164f, 312.96697998f);
+    path1.quadTo(466.654388428f, 312.96697998f, 487.928710938f, 334.241271973f);
+    path1.quadTo(509.20300293f, 355.515594482f, 509.20300293f, 385.601989746f);
+    path1.close();
+
+    path2.moveTo(449.033996582f, 290.87298584f);
+    path2.quadTo(449.033996582f, 301.028259277f, 441.853149414f, 308.209106445f);
+    path2.quadTo(434.672271729f, 315.389984131f, 424.516998291f, 315.389984131f);
+    path2.quadTo(414.361724854f, 315.389984131f, 407.180847168f, 308.209106445f);
+    path2.quadTo(400, 301.028259277f, 400, 290.87298584f);
+    path2.quadTo(400, 280.717712402f, 407.180847168f, 273.536865234f);
+    path2.quadTo(414.361724854f, 266.355987549f, 424.516998291f, 266.355987549f);
+    path2.quadTo(434.672271729f, 266.355987549f, 441.853149414f, 273.536865234f);
+    path2.quadTo(449.033996582f, 280.717712402f, 449.033996582f, 290.87298584f);
+    path2.close();
 
     testPathOp(reporter, path1, path2, kUnion_SkPathOp, filename);
 }
@@ -4866,7 +4866,7 @@ static void loops46i(skiatest::Reporter* reporter, const char* filename) {
 }
 
 /*
-FAILED: d:\cygwin\puregit\tests\pathopsextendedtest.cpp:346	0 */
+FAILED: d:\cygwin\puregit\tests\pathopsextendedtest.cpp:346    0 */
 static void loops47i(skiatest::Reporter* reporter, const char* filename) {
     SkPath path, pathB;
     path.setFillType(SkPath::kWinding_FillType);
@@ -5160,7 +5160,7 @@ static void fuzz38(skiatest::Reporter* reporter, const char* filename) {
     path.lineTo(100.34f, 310.156f);
     path.lineTo(100.34f, 303.312f);
     path.close();
-    testPathOpCheck(reporter, path, pathB, kUnion_SkPathOp, filename, FLAGS_runFail);
+    testPathOpCheck(reporter, path, pathB, kUnion_SkPathOp, filename, true);
 }
 
 static void crbug_526025(skiatest::Reporter* reporter, const char* filename) {
@@ -5211,13 +5211,176 @@ path.lineTo(SkBits2Float(0xc36c7bd8), SkBits2Float(0x43c61f86));  // -236.484f,
     testPathOp(reporter, path1, path2, kIntersect_SkPathOp, filename);
 }
 
+static void dean2(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x3f2b74b3), SkBits2Float(0x4154a02b)); // 0.669749f, 13.2891f
+path.cubicTo(SkBits2Float(0x3f2b74b3), SkBits2Float(0x4154a02b), SkBits2Float(0x41531912), SkBits2Float(0x3f130322), SkBits2Float(0x4154a02b), SkBits2Float(0x3f2b74b3)); // 0.669749f, 13.2891f, 13.1936f, 0.574267f, 13.2891f, 0.669749f
+path.cubicTo(SkBits2Float(0x414a835a), SkBits2Float(0x3ec07ba6), SkBits2Float(0x413fcc0d), SkBits2Float(0x3e193319), SkBits2Float(0x4134a02b), SkBits2Float(0x00000000)); // 12.6571f, 0.375943f, 11.9873f, 0.149609f, 11.2891f, 0
+path.lineTo(SkBits2Float(0x3f2b74b3), SkBits2Float(0x4154a02b)); // 0.669749f, 13.2891f
+path.close();
+    SkPath path1(path);
+
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x3f2b74b3), SkBits2Float(0x4154a02b)); // 0.669749f, 13.2891f
+path.cubicTo(SkBits2Float(0x3f2b74b3), SkBits2Float(0x4154a02b), SkBits2Float(0x41531912), SkBits2Float(0x3f130322), SkBits2Float(0x4154a02b), SkBits2Float(0x3f2b74b3)); // 0.669749f, 13.2891f, 13.1936f, 0.574267f, 13.2891f, 0.669749f
+path.lineTo(SkBits2Float(0x417ab74b), SkBits2Float(0x4154a02b)); // 15.6697f, 13.2891f
+path.lineTo(SkBits2Float(0x3f2b74b3), SkBits2Float(0x4154a02b)); // 0.669749f, 13.2891f
+path.close();
+    SkPath path2(path);
+    testPathOp(reporter, path1, path2, kIntersect_SkPathOp, filename);
+}
+
+static void cubics_d(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(0, 1);
+    path.cubicTo(3, 5, 1, 0, 3, 0);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(0, 1);
+    pathB.cubicTo(0, 3, 1, 0, 5, 3);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kDifference_SkPathOp, filename);
+}
+
+static void cubics_d2(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(0, 1);
+    path.cubicTo(2, 5, 2, 0, 2, 1);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(0, 2);
+    pathB.cubicTo(1, 2, 1, 0, 5, 2);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kDifference_SkPathOp, filename);
+}
+
+static void loops_i1(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(2, 3);
+    path.cubicTo(0, 4, -0.333333343f, 4.66666651f, 3, 5.83333349f);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(0, 4);
+    pathB.cubicTo(-0.333333343f, 4.66666651f, 3, 5.83333349f, 2, 3);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kIntersect_SkPathOp, filename);
+}
+
+static void loops_i2(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(2, 4);
+    path.cubicTo(0, 5, -0.333333343f, 5.66666651f, 3, 6.83333302f);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(0, 5);
+    pathB.cubicTo(-0.333333343f, 5.66666651f, 3, 6.83333302f, 2, 4);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kIntersect_SkPathOp, filename);
+}
+
+static void loops_i3(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(2, 5);
+    path.cubicTo(0, 6, -0.333333343f, 6.66666651f, 3, 7.83333302f);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(0, 6);
+    pathB.cubicTo(-0.333333343f, 6.66666651f, 3, 7.83333302f, 2, 5);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kIntersect_SkPathOp, filename);
+}
+
+static void loops_i4(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(3, 4);
+    path.cubicTo(1, 5, 0.666666627f, 5.66666651f, 4, 6.83333302f);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(1, 5);
+    pathB.cubicTo(0.666666627f, 5.66666651f, 4, 6.83333302f, 3, 4);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kIntersect_SkPathOp, filename);
+}
+
+static void loops_i5(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(3, 5);
+    path.cubicTo(1, 6, 0.666666627f, 6.66666651f, 4, 7.83333302f);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(1, 6);
+    pathB.cubicTo(0.666666627f, 6.66666651f, 4, 7.83333302f, 3, 5);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kIntersect_SkPathOp, filename);
+}
+
+static void loops_i6(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(4, 5);
+    path.cubicTo(2, 6, 1.66666663f, 6.66666651f, 5, 7.83333302f);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(2, 6);
+    pathB.cubicTo(1.66666663f, 6.66666651f, 5, 7.83333302f, 4, 5);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kIntersect_SkPathOp, filename);
+}
+
+static void cubics_d3(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(3, 4);
+    path.cubicTo(0, 6, 6, 1, 4, 2);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(1, 6);
+    pathB.cubicTo(2, 4, 4, 3, 6, 0);
+    pathB.close();
+    // DEBUG_UNDER_DEVELOPMENT  cubics_d3 disable expectation check for now
+    testPathOpCheck(reporter, path, pathB, kDifference_SkPathOp, filename, !FLAGS_runFail);
+}
+
+static void cubics_o(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path, pathB;
+    path.setFillType(SkPath::kWinding_FillType);
+    path.moveTo(1, 4);
+    path.cubicTo(2, 6, 5, 0, 5, 3);
+    path.close();
+    pathB.setFillType(SkPath::kWinding_FillType);
+    pathB.moveTo(0, 5);
+    pathB.cubicTo(3, 5, 4, 1, 6, 2);
+    pathB.close();
+    testPathOp(reporter, path, pathB, kXOR_SkPathOp, filename);
+}
+
 static void (*skipTest)(skiatest::Reporter* , const char* filename) = 0;
-static void (*firstTest)(skiatest::Reporter* , const char* filename) = 0;
+static void (*firstTest)(skiatest::Reporter* , const char* filename) = cubics_d3;
 static void (*stopTest)(skiatest::Reporter* , const char* filename) = 0;
 
 #define TEST(name) { name, #name }
 
 static struct TestDesc tests[] = {
+    TEST(loops_i1),
+    TEST(loops_i2),
+    TEST(loops_i3),
+    TEST(loops_i4),
+    TEST(loops_i5),
+    TEST(loops_i6),
+    TEST(cubics_d3),
+    TEST(cubics_o),
+    TEST(cubics_d2),
+    TEST(cubics_d),
+    TEST(dean2),
     TEST(fuzzX_392),
     TEST(crbug_526025),
     TEST(fuzz38),
@@ -5594,7 +5757,7 @@ static void fuzz535151(skiatest::Reporter* reporter, const char* filename) {
     two.lineTo(0, 50);
     two.lineTo(4.29497e+09f, 50);
     SkPath dummy;
-    REPORTER_ASSERT(reporter, !Op(one, two, kIntersect_SkPathOp, &dummy));
+    testPathOp(reporter, one, two, kIntersect_SkPathOp, filename);
 }
 
 static void bufferOverflow(skiatest::Reporter* reporter, const char* filename) {
@@ -5602,7 +5765,7 @@ static void bufferOverflow(skiatest::Reporter* reporter, const char* filename) {
     path.addRect(0,0, 300,170141183460469231731687303715884105728.f);
     SkPath pathB;
     pathB.addRect(0,0, 300,16);
-    testPathOp(reporter, path, pathB, kUnion_SkPathOp, filename);
+    testPathOpCheck(reporter, path, pathB, kUnion_SkPathOp, filename, true);
 }
 
 // m 100,0 60,170 -160,-110 200,0 -170,11000000000 z
@@ -5622,7 +5785,7 @@ static void fuzz433(skiatest::Reporter* reporter, const char* filename) {
     path2.lineTo(-170 + 20,11000000000.0f + 20);
     path2.close();
 
-    testPathOpCheck(reporter, path1, path2, kIntersect_SkPathOp, filename, FLAGS_runFail);
+    testPathOpCheck(reporter, path1, path2, kIntersect_SkPathOp, filename, true);
 }
 
 static void fuzz433b(skiatest::Reporter* reporter, const char* filename) {
@@ -5645,7 +5808,7 @@ static void fuzz433b(skiatest::Reporter* reporter, const char* filename) {
     path2.lineTo(190, 60);
     path2.close();
 
-    testPathOpCheck(reporter, path1, path2, kUnion_SkPathOp, filename, FLAGS_runFail);
+    testPathOpCheck(reporter, path1, path2, kUnion_SkPathOp, filename, true);
 }
 
 static void fuzz487a(skiatest::Reporter* reporter, const char* filename) {
@@ -5691,7 +5854,7 @@ path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
 path.close();
 
     SkPath path2(path);
-    testPathOpFailCheck(reporter, path1, path2, (SkPathOp) 2, filename);
+    testPathOpCheck(reporter, path1, path2, (SkPathOp) 2, filename, true);
 }
 
 static void fuzz487b(skiatest::Reporter* reporter, const char* filename) {
@@ -5737,7 +5900,7 @@ path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
 path.close();
 
     SkPath path2(path);
-    testPathOpCheck(reporter, path1, path2, (SkPathOp) 2, filename, FLAGS_runFail);
+    testPathOpCheck(reporter, path1, path2, (SkPathOp) 2, filename, true);
 }
 
 static void fuzz714(skiatest::Reporter* reporter, const char* filename) {
@@ -5763,7 +5926,7 @@ path.lineTo(SkBits2Float(0x43200000), SkBits2Float(0x42700000));
 path.close();
 
     SkPath path2(path);
-    testPathOpCheck(reporter, path1, path2, (SkPathOp) 2, filename, FLAGS_runFail);
+    testPathOpCheck(reporter, path1, path2, (SkPathOp) 2, filename, true);
 }
 
 static void fuzz1(skiatest::Reporter* reporter, const char* filename) {
@@ -5785,7 +5948,7 @@ path.close();
     path.setFillType((SkPath::FillType) 0);
 
     SkPath path2(path);
-    testPathFailOp(reporter, path1, path2, (SkPathOp) 2, filename);
+    testPathOpFail(reporter, path1, path2, (SkPathOp) 2, filename);
 }
 
 
@@ -5810,7 +5973,7 @@ path.cubicTo(SkBits2Float(0x42266e32), SkBits2Float(0xcf223cc0), SkBits2Float(0x
 path.lineTo(SkBits2Float(0x40f8fbe0), SkBits2Float(0xcf223cc0));  // 7.78075f, -2.72189e+09f
 
     SkPath path2(path);
-    testPathFailOp(reporter, path1, path2, (SkPathOp) 2, filename);
+    testPathOp(reporter, path1, path2, (SkPathOp) 2, filename);
 }
 
 static void bug597926_0(skiatest::Reporter* reporter, const char* filename) {
@@ -5833,7 +5996,7 @@ path.cubicTo(SkBits2Float(0xc51cd471), SkBits2Float(0xc49d54d0), SkBits2Float(0x
 path.quadTo(SkBits2Float(0xc51bf7eb), SkBits2Float(0xc49cf010), SkBits2Float(0xc51ba866), SkBits2Float(0xc49cb9e6));  // -2495.49f, -1255.5f, -2490.52f, -1253.81f
 path.cubicTo(SkBits2Float(0xc51bac0d), SkBits2Float(0xc49cc50e), SkBits2Float(0xc51c29eb), SkBits2Float(0xc49cfb01), SkBits2Float(0xc51c5bca), SkBits2Float(0xc49d1fa6));  // -2490.75f, -1254.16f, -2498.62f, -1255.84f, -2501.74f, -1256.99f
 SkPath path2(path);
-testPathFailOp(reporter, path1, path2, (SkPathOp) 1, filename);
+testPathOp(reporter, path1, path2, (SkPathOp) 1, filename);
 }
 
 static void fuzz1450_0(skiatest::Reporter* reporter, const char* filename) {
@@ -5852,7 +6015,7 @@ path.lineTo(SkBits2Float(0x43b40000), SkBits2Float(0x44800000));  // 360, 1024
 path.lineTo(SkBits2Float(0x43b40000), SkBits2Float(0x45816000));  // 360, 4140
 path.close();
 SkPath path2(path);
-testPathSkipAssertOp(reporter, path1, path2, kUnion_SkPathOp, filename);
+testPathOpSkipAssert(reporter, path1, path2, kUnion_SkPathOp, filename);
 }
 
 static void fuzz1450_1(skiatest::Reporter* reporter, const char* filename) {
@@ -5881,7 +6044,7 @@ path.lineTo(SkBits2Float(0x451f7000), SkBits2Float(0x42800000));  // 2551, 64
 path.lineTo(SkBits2Float(0x42fe0000), SkBits2Float(0x43a08000));  // 127, 321
 path.close();
 SkPath path2(path);
-testPathFailOp(reporter, path1, path2, kUnion_SkPathOp, filename);
+testPathOpSkipAssert(reporter, path1, path2, kUnion_SkPathOp, filename);
 }
 
 static void fuzz763_9(skiatest::Reporter* reporter, const char* filename) {
@@ -5908,7 +6071,7 @@ path.quadTo(SkBits2Float(0xd912102a), SkBits2Float(0x284f9a28), SkBits2Float(0xb
 path.lineTo(SkBits2Float(0xc809272a), SkBits2Float(0x29b02829));  // -140445, 7.82294e-14f
 
     SkPath path2(path);
-    testPathFailOp(reporter, path1, path2, (SkPathOp) 1, filename);
+    testPathOp(reporter, path1, path2, (SkPathOp) 1, filename);
 }
 
 
@@ -5942,7 +6105,7 @@ path.moveTo(SkBits2Float(0x212a8c55), SkBits2Float(0x21081f2a));  // 5.7784e-19f
 path.conicTo(SkBits2Float(0x6a4b7bc0), SkBits2Float(0x2147ed7a), SkBits2Float(0x28282a3a), SkBits2Float(0x21df212a), SkBits2Float(0x033a8a3a));  // 6.14991e+25f, 6.77381e-19f, 9.33503e-15f, 1.51198e-18f, 5.48192e-37f
 
     SkPath path2(path);
-    testPathFailSkipAssertOp(reporter, path1, path2, (SkPathOp) 1, filename);
+    testPathOpSkipAssert(reporter, path1, path2, (SkPathOp) 1, filename);
 }
 
 static void fuzz763_3(skiatest::Reporter* reporter, const char* filename) {
@@ -5977,7 +6140,7 @@ path.moveTo(SkBits2Float(0x21081f3f), SkBits2Float(0x9fd4e62a));  // 4.61199e-19
 path.cubicTo(SkBits2Float(0x3a293a2a), SkBits2Float(0x0e3bf0c5), SkBits2Float(0x3b29d42a), SkBits2Float(0x0f217265), SkBits2Float(0x2d5d2921), SkBits2Float(0x5568295b));  // 0.000645551f, 2.31655e-30f, 0.00259138f, 7.95994e-30f, 1.25715e-11f, 1.5954e+13f
 
     SkPath path2(path);
-    testPathSkipAssertOp(reporter, path1, path2, (SkPathOp) 1, filename);
+    testPathOpSkipAssert(reporter, path1, path2, (SkPathOp) 1, filename);
 }
 
 static void fuzz763_5(skiatest::Reporter* reporter, const char* filename) {
@@ -6002,7 +6165,7 @@ path.quadTo(SkBits2Float(0xdf28282a), SkBits2Float(0x3a8a3b21), SkBits2Float(0x2
 path.lineTo(SkBits2Float(0x5b2d2968), SkBits2Float(0x5b2d8c55));  // 4.87407e+16f, 4.88495e+16f
 
     SkPath path2(path);
-    testPathSkipAssertOp(reporter, path1, path2, (SkPathOp) 4, filename);
+    testPathOpSkipAssert(reporter, path1, path2, (SkPathOp) 4, filename);
 }
 
 static void fuzz763_2(skiatest::Reporter* reporter, const char* filename) {
@@ -6041,10 +6204,226 @@ path.conicTo(SkBits2Float(0xf86d273b), SkBits2Float(0x27e523e3), SkBits2Float(0x
 path.cubicTo(SkBits2Float(0x2f273927), SkBits2Float(0xa83a2c21), SkBits2Float(0xd7122121), SkBits2Float(0x21212921), SkBits2Float(0x3be3db3a), SkBits2Float(0xa9deb63b));  // 1.52089e-10f, -1.03346e-14f, -1.60671e+14f, 5.46034e-19f, 0.00695362f, -9.89039e-14f
 
     SkPath path2(path);
-    testPathSkipAssertOp(reporter, path1, path2, (SkPathOp) 1, filename);
+    testPathOpSkipAssert(reporter, path1, path2, (SkPathOp) 1, filename);
+}
+
+// crbug.com/626164
+static void fuzz763_1c(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+    path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+    path.cubicTo(SkBits2Float(0x1931204a), SkBits2Float(0x2ba1a14a), SkBits2Float(0x4a4a08ff), SkBits2Float(0x4a4a08ff), SkBits2Float(0x4a4a4a34), SkBits2Float(0x4a4a4a4a));  // 9.15721e-24f, 1.14845e-12f, 3.31014e+06f, 3.31014e+06f, 3.31432e+06f, 3.31432e+06f
+    path.moveTo(SkBits2Float(0x000010a1), SkBits2Float(0x19312000));  // 5.96533e-42f, 9.15715e-24f
+    path.cubicTo(SkBits2Float(0x4a4a4a4a), SkBits2Float(0x4a4a4a4a), SkBits2Float(0xa14a4a4a), SkBits2Float(0x08ff2ba1), SkBits2Float(0x08ff4a4a), SkBits2Float(0x4a344a4a));  // 3.31432e+06f, 3.31432e+06f, -6.85386e-19f, 1.53575e-33f, 1.53647e-33f, 2.95387e+06f
+    path.cubicTo(SkBits2Float(0x4a4a4a4a), SkBits2Float(0x4a4a4a4a), SkBits2Float(0x2ba1a14a), SkBits2Float(0x4e4a08ff), SkBits2Float(0x4a4a4a4a), SkBits2Float(0xa1a181ff));  // 3.31432e+06f, 3.31432e+06f, 1.14845e-12f, 8.47397e+08f, 3.31432e+06f, -1.09442e-18f
+
+    SkPath path2(path);
+    SkPath dummy;
+    testPathOp(reporter, path1, path2, (SkPathOp)4, filename);
+}
+
+// crbug.com/626186
+static void fuzz763_1b(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+    path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+    path.cubicTo(SkBits2Float(0x0000ff07), SkBits2Float(0xf9f9ff00), SkBits2Float(0xfe0ef9f4), SkBits2Float(0xd9b105fb), SkBits2Float(0x000000f9), SkBits2Float(0xfe11f901));  // 9.14866e-41f, -1.62257e+35f, -4.75121e+37f, -6.22846e+15f, 3.48923e-43f, -4.85077e+37f
+    path.lineTo(SkBits2Float(0xda1905ed), SkBits2Float(0x3c05fbfb));  // -1.0768e+16f, 0.00817775f
+    path.cubicTo(SkBits2Float(0x3c3c3c3c), SkBits2Float(0x3c3c3c3c), SkBits2Float(0x253c7f00), SkBits2Float(0xfa00d3fa), SkBits2Float(0x250025fe), SkBits2Float(0x00000006));  // 0.011489f, 0.011489f, 1.63494e-16f, -1.67228e+35f, 1.11151e-16f, 8.40779e-45f
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+    path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+    path.quadTo(SkBits2Float(0x3c3c3c3c), SkBits2Float(0xfa253c3c), SkBits2Float(0xfefa00d3), SkBits2Float(0x25fad9df));  // 0.011489f, -2.14488e+35f, -1.66156e+38f, 4.35157e-16f
+    path.lineTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+    path.close();
+    path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+    path.lineTo(SkBits2Float(0x8dfefa00), SkBits2Float(0xf0f9fad9));  // -1.57141e-30f, -6.1892e+29f
+    path.cubicTo(SkBits2Float(0x20fe58f9), SkBits2Float(0x0525fbed), SkBits2Float(0x1905ffff), SkBits2Float(0x01f9f9f9), SkBits2Float(0xfbfe0ef9), SkBits2Float(0xfb212fff));  // 4.30882e-19f, 7.80453e-36f, 6.92764e-24f, 9.18268e-38f, -2.63829e+36f, -8.36933e+35f
+
+    SkPath path2(path);
+    testPathOp(reporter, path1, path2, (SkPathOp)2, filename);
+}
+
+static void fuzz763_1a(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+    path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+    path.cubicTo(SkBits2Float(0x154be880), SkBits2Float(0x80000640), SkBits2Float(0x5559a419), SkBits2Float(0x59d55928), SkBits2Float(0x80045959), SkBits2Float(0x40154be8));  // 4.11789e-26f, -2.24208e-42f, 1.49562e+13f, 7.50652e+15f, -3.99394e-40f, 2.33276f
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+    path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+    path.quadTo(SkBits2Float(0x5559a419), SkBits2Float(0x59d55928), SkBits2Float(0xbd595959), SkBits2Float(0x3f3f3f09));  // 1.49562e+13f, 7.50652e+15f, -0.0530637f, 0.747056f
+    path.moveTo(SkBits2Float(0x3f3f3f3f), SkBits2Float(0x3f3f3f3f));  // 0.747059f, 0.747059f
+    path.moveTo(SkBits2Float(0x3f3f3f3f), SkBits2Float(0xff3f3f3f));  // 0.747059f, -2.54211e+38f
+    path.lineTo(SkBits2Float(0x09090909), SkBits2Float(0x3038d509));  // 1.6495e-33f, 6.72416e-10f
+    path.conicTo(SkBits2Float(0x5947ffff), SkBits2Float(0x40e88004), SkBits2Float(0x00002059), SkBits2Float(0x28555900), SkBits2Float(0x5959d559));  // 3.51844e+15f, 7.26563f, 1.16042e-41f, 1.18432e-14f, 3.83217e+15f
+    path.lineTo(SkBits2Float(0x3f3f3f3f), SkBits2Float(0xff3f3f3f));  // 0.747059f, -2.54211e+38f
+    path.close();
+    path.moveTo(SkBits2Float(0x3f3f3f3f), SkBits2Float(0xff3f3f3f));  // 0.747059f, -2.54211e+38f
+    path.lineTo(SkBits2Float(0x38d57f4b), SkBits2Float(0x59597f4b));  // 0.000101803f, 3.82625e+15f
+    path.lineTo(SkBits2Float(0x3f3f3f3f), SkBits2Float(0xff3f3f3f));  // 0.747059f, -2.54211e+38f
+    path.close();
+    path.moveTo(SkBits2Float(0x384700ff), SkBits2Float(0x0108804b));  // 4.74462e-05f, 2.50713e-38f
+
+    SkPath path2(path);
+    testPathOp(reporter, path1, path2, (SkPathOp)0, filename);
+}
+
+// crbug.com/627780
+static void fuzz763_3a(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 1);
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+path.lineTo(SkBits2Float(0x555b292d), SkBits2Float(0x2a212a8c));  // 1.50606e+13f, 1.43144e-13f
+path.conicTo(SkBits2Float(0xc0032108), SkBits2Float(0x7a6a4b7b), SkBits2Float(0x212a8ced), SkBits2Float(0x0321081f), SkBits2Float(0x6a3a7bc0));  // -2.04889f, 3.04132e+35f, 5.77848e-19f, 4.7323e-37f, 5.63611e+25f
+path.conicTo(SkBits2Float(0x3a2147ed), SkBits2Float(0xdf28282a), SkBits2Float(0x3a8a3a21), SkBits2Float(0x8a284f9a), SkBits2Float(0x3ac23ab3));  // 0.000615238f, -1.2117e+19f, 0.00105459f, -8.10388e-33f, 0.00148185f
+path.cubicTo(SkBits2Float(0x1d2a2928), SkBits2Float(0x63962be6), SkBits2Float(0x272a812a), SkBits2Float(0x295b2d29), SkBits2Float(0x2a685568), SkBits2Float(0x68295b2d));  // 2.25206e-21f, 5.54035e+21f, 2.36623e-15f, 4.86669e-14f, 2.06354e-13f, 3.19905e+24f
+path.conicTo(SkBits2Float(0x2a8c555b), SkBits2Float(0x081f2a21), SkBits2Float(0x7bc00321), SkBits2Float(0x7a6a4b77), SkBits2Float(0x3a214726));  // 2.49282e-13f, 4.78968e-34f, 1.99397e+36f, 3.04132e+35f, 0.000615226f
+path.moveTo(SkBits2Float(0x8adf2028), SkBits2Float(0x3a219a3a));  // -2.14862e-32f, 0.000616464f
+path.quadTo(SkBits2Float(0x3ab38e28), SkBits2Float(0x29283ac2), SkBits2Float(0x2be61d2a), SkBits2Float(0x812a4396));  // 0.0013699f, 3.73545e-14f, 1.63506e-12f, -3.12726e-38f
+
+    SkPath path2(path);
+    testPathOpSkipAssert(reporter, path1, path2, (SkPathOp) 1, filename);
+}
+
+// crbug.com/627689
+static void fuzz763_5a(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 1);
+path.moveTo(SkBits2Float(0x38bd8610), SkBits2Float(0x00000000));  // 9.03719e-05f, 0
+path.conicTo(SkBits2Float(0x4183d871), SkBits2Float(0x41fea321), SkBits2Float(0xb700ff00), SkBits2Float(0x4240b8b8), SkBits2Float(0x3b058283));  // 16.4807f, 31.8297f, -7.68877e-06f, 48.1804f, 0.0020372f
+path.lineTo(SkBits2Float(0x3a3a3ab8), SkBits2Float(0xb8b8b8b8));  // 0.000710409f, -8.80821e-05f
+path.conicTo(SkBits2Float(0x3a455ec8), SkBits2Float(0xb8b8b8b3), SkBits2Float(0x38b2418d), SkBits2Float(0xb730d014), SkBits2Float(0x3f7ffff3));  // 0.000752908f, -8.80821e-05f, 8.49991e-05f, -1.05389e-05f, 0.999999f
+path.quadTo(SkBits2Float(0x3a51246a), SkBits2Float(0xb6da45a3), SkBits2Float(0x38bc5c3c), SkBits2Float(0x00000000));  // 0.000797814f, -6.50501e-06f, 8.98172e-05f, 0
+path.lineTo(SkBits2Float(0x3a3a3ab8), SkBits2Float(0xb8b8b8b8));  // 0.000710409f, -8.80821e-05f
+path.quadTo(SkBits2Float(0x39a32d2d), SkBits2Float(0x00000000), SkBits2Float(0xb8a13a00), SkBits2Float(0x00000000));  // 0.000311234f, 0, -7.68788e-05f, 0
+path.lineTo(SkBits2Float(0x3a3a3ab8), SkBits2Float(0xb8b8b8b8));  // 0.000710409f, -8.80821e-05f
+path.quadTo(SkBits2Float(0x39ba814c), SkBits2Float(0xb838fed2), SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0.00035573f, -4.41063e-05f, 0, 0
+path.lineTo(SkBits2Float(0x38bd8610), SkBits2Float(0x00000000));  // 9.03719e-05f, 0
+path.close();
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+
+    SkPath path2(path);
+    testPathOp(reporter, path1, path2, (SkPathOp) 4, filename);
+}
+
+// crbug.com/627401
+static void fuzz763_2a(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 1);
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+path.quadTo(SkBits2Float(0x3e484500), SkBits2Float(0x164f3a30), SkBits2Float(0x49484801), SkBits2Float(0x7d0100c8));  // 0.195576f, 1.67397e-25f, 820352, 1.07172e+37f
+path.conicTo(SkBits2Float(0xff7f36fd), SkBits2Float(0x3e647d01), SkBits2Float(0x0c00f430), SkBits2Float(0x486b6448), SkBits2Float(0x00484848));  // -3.39239e+38f, 0.223133f, 9.93424e-32f, 241041, 6.63809e-39f
+path.lineTo(SkBits2Float(0x4f4f557d), SkBits2Float(0x48480112));  // 3.47849e+09f, 204804
+path.lineTo(SkBits2Float(0xf40c01ff), SkBits2Float(0x45008000));  // -4.43702e+31f, 2056
+path.moveTo(SkBits2Float(0x4bfffa00), SkBits2Float(0x7d4ac859));  // 3.35514e+07f, 1.68465e+37f
+path.conicTo(SkBits2Float(0x7d014f3e), SkBits2Float(0x00f4ff01), SkBits2Float(0x6b64480c), SkBits2Float(0x48484848), SkBits2Float(0x557d0100));  // 1.07426e+37f, 2.24993e-38f, 2.75975e+26f, 205089, 1.73863e+13f
+
+    SkPath path2(path);
+    testPathOpSkipAssert(reporter, path1, path2, (SkPathOp) 0, filename);
+}
+
+// crbug.com/627761
+static void fuzz763_2b(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 1);
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x5b292d55), SkBits2Float(0x212a8c55));  // 4.76191e+16f, 5.7784e-19f
+path.moveTo(SkBits2Float(0x3b21081f), SkBits2Float(0x4b7bc003));  // 0.00245715f, 1.64987e+07f
+path.lineTo(SkBits2Float(0x2a8ced7a), SkBits2Float(0x21081f21));  // 2.50338e-13f, 4.61198e-19f
+path.conicTo(SkBits2Float(0x6a3a7bc0), SkBits2Float(0x4721ed7a), SkBits2Float(0x282a3a21), SkBits2Float(0x3a21df28), SkBits2Float(0x4f9a3a8a));  // 5.63611e+25f, 41453.5f, 9.4495e-15f, 0.000617492f, 5.17506e+09f
+path.lineTo(SkBits2Float(0x3b21081f), SkBits2Float(0x4b7bc003));  // 0.00245715f, 1.64987e+07f
+path.close();
+path.moveTo(SkBits2Float(0x3b21081f), SkBits2Float(0x4b7bc003));  // 0.00245715f, 1.64987e+07f
+path.cubicTo(SkBits2Float(0x273ac23a), SkBits2Float(0x1d2a2928), SkBits2Float(0x63962be6), SkBits2Float(0x272a812a), SkBits2Float(0x295b2d29), SkBits2Float(0x29685568));  // 2.5918e-15f, 2.25206e-21f, 5.54035e+21f, 2.36623e-15f, 4.86669e-14f, 5.15884e-14f
+path.lineTo(SkBits2Float(0x081f2a21), SkBits2Float(0x7bc00321));  // 4.78968e-34f, 1.99397e+36f
+path.lineTo(SkBits2Float(0x282a3a21), SkBits2Float(0x3a21df28));  // 9.4495e-15f, 0.000617492f
+path.lineTo(SkBits2Float(0x3b21081f), SkBits2Float(0x4b7bc003));  // 0.00245715f, 1.64987e+07f
+path.close();
+path.moveTo(SkBits2Float(0x3b21081f), SkBits2Float(0x4b7bc003));  // 0.00245715f, 1.64987e+07f
+path.quadTo(SkBits2Float(0x8a4fc29a), SkBits2Float(0x3ab3283a), SkBits2Float(0x1d2a2928), SkBits2Float(0x43962be6));  // -1.00033e-32f, 0.00136686f, 2.25206e-21f, 300.343f
+path.moveTo(SkBits2Float(0x5b2d2a81), SkBits2Float(0x29276829));  // 4.87419e+16f, 3.71718e-14f
+path.conicTo(SkBits2Float(0x1e2ab03a), SkBits2Float(0x2920213b), SkBits2Float(0x3b3ac527), SkBits2Float(0xc422333b), SkBits2Float(0x6c2a9f1f));  // 9.03617e-21f, 3.5556e-14f, 0.00284989f, -648.8f, 8.25075e+26f
+path.quadTo(SkBits2Float(0xc25d2757), SkBits2Float(0x3a705921), SkBits2Float(0x2a105152), SkBits2Float(0x28d91210));  // -55.2884f, 0.000916855f, 1.2818e-13f, 2.40997e-14f
+path.quadTo(SkBits2Float(0x68295b2d), SkBits2Float(0x2d296855), SkBits2Float(0x2a8c555b), SkBits2Float(0x081f2a21));  // 3.19905e+24f, 9.6297e-12f, 2.49282e-13f, 4.78968e-34f
+path.lineTo(SkBits2Float(0x5b2d2a81), SkBits2Float(0x29276829));  // 4.87419e+16f, 3.71718e-14f
+path.close();
+path.moveTo(SkBits2Float(0x5b2d2a81), SkBits2Float(0x29276829));  // 4.87419e+16f, 3.71718e-14f
+path.conicTo(SkBits2Float(0x6a4b7bc0), SkBits2Float(0x2a8ced7a), SkBits2Float(0x21081f21), SkBits2Float(0xcb7bc003), SkBits2Float(0x47ed7a6a));  // 6.14991e+25f, 2.50338e-13f, 4.61198e-19f, -1.64987e+07f, 121589
+path.lineTo(SkBits2Float(0x5b2d2a81), SkBits2Float(0x29276829));  // 4.87419e+16f, 3.71718e-14f
+path.close();
+path.moveTo(SkBits2Float(0x5b2d2a81), SkBits2Float(0x29276829));  // 4.87419e+16f, 3.71718e-14f
+path.quadTo(SkBits2Float(0xdf28282a), SkBits2Float(0x2d8a3a21), SkBits2Float(0x5b682b68), SkBits2Float(0x5b292d55));  // -1.2117e+19f, 1.57146e-11f, 6.53499e+16f, 4.76191e+16f
+path.lineTo(SkBits2Float(0x2a212a8c), SkBits2Float(0x0321081f));  // 1.43144e-13f, 4.7323e-37f
+path.conicTo(SkBits2Float(0x7a6a4b7b), SkBits2Float(0x212a8ced), SkBits2Float(0x0321081f), SkBits2Float(0x6a3a7bc0), SkBits2Float(0x3a21477a));  // 3.04132e+35f, 5.77848e-19f, 4.7323e-37f, 5.63611e+25f, 0.000615231f
+path.moveTo(SkBits2Float(0x21df2828), SkBits2Float(0x9a3a8a3a));  // 1.51217e-18f, -3.85756e-23f
+path.quadTo(SkBits2Float(0x3ab38a28), SkBits2Float(0x28273ac2), SkBits2Float(0xe61d2a29), SkBits2Float(0x2a63962b));  // 0.00136978f, 9.2831e-15f, -1.85547e+23f, 2.02138e-13f
+path.conicTo(SkBits2Float(0x2d29272a), SkBits2Float(0x5568295b), SkBits2Float(0x5b2d2968), SkBits2Float(0x5b2d6829), SkBits2Float(0x212a8c55));  // 9.61523e-12f, 1.5954e+13f, 4.87407e+16f, 4.88097e+16f, 5.7784e-19f
+path.moveTo(SkBits2Float(0x0321081f), SkBits2Float(0x6a4b7bc0));  // 4.7323e-37f, 6.14991e+25f
+path.conicTo(SkBits2Float(0x3a2147ed), SkBits2Float(0xdf28282a), SkBits2Float(0x3a8a3a21), SkBits2Float(0x8a284f9a), SkBits2Float(0x3ac23ab3));  // 0.000615238f, -1.2117e+19f, 0.00105459f, -8.10388e-33f, 0.00148185f
+path.lineTo(SkBits2Float(0x0321081f), SkBits2Float(0x6a4b7bc0));  // 4.7323e-37f, 6.14991e+25f
+path.close();
+
+    SkPath path2(path);
+    testPathOpSkipAssert(reporter, path1, path2, (SkPathOp) 4, filename);
+}
+
+static void fuzz763_2c(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 1);
+
+path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x36344a4a));  // 0, 2.68653e-06f
+path.cubicTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000), SkBits2Float(0x364a4a4a), SkBits2Float(0x364a4a4a), SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0, 3.01436e-06f, 3.01436e-06f, 0, 0
+path.lineTo(SkBits2Float(0x364a4a4a), SkBits2Float(0x00000000));  // 3.01436e-06f, 0
+path.cubicTo(SkBits2Float(0x364a30f0), SkBits2Float(0x344ac7fb), SkBits2Float(0x3656d432), SkBits2Float(0x34cabb48), SkBits2Float(0x367031a9), SkBits2Float(0x351802f1));  // 3.01288e-06f, 1.88855e-07f, 3.2012e-06f, 3.77617e-07f, 3.57917e-06f, 5.66287e-07f
+path.cubicTo(SkBits2Float(0x36a7b150), SkBits2Float(0x35ab09db), SkBits2Float(0x371874ed), SkBits2Float(0x3604f2c7), SkBits2Float(0x3784e0c7), SkBits2Float(0x36344a51));  // 4.99763e-06f, 1.27434e-06f, 9.08713e-06f, 1.98108e-06f, 1.58403e-05f, 2.68653e-06f
+path.cubicTo(SkBits2Float(0x3743dc9a), SkBits2Float(0x36344a4f), SkBits2Float(0x36fbef33), SkBits2Float(0x36344a4e), SkBits2Float(0x36604a35), SkBits2Float(0x36344a4c));  // 1.16743e-05f, 2.68653e-06f, 7.50823e-06f, 2.68653e-06f, 3.34218e-06f, 2.68653e-06f
+path.cubicTo(SkBits2Float(0x36531715), SkBits2Float(0x36344a4c), SkBits2Float(0x3645e3f5), SkBits2Float(0x36344a4b), SkBits2Float(0x3638b0d4), SkBits2Float(0x36344a4b));  // 3.14549e-06f, 2.68653e-06f, 2.9488e-06f, 2.68653e-06f, 2.75211e-06f, 2.68653e-06f
+path.cubicTo(SkBits2Float(0x35f64120), SkBits2Float(0x36344a4b), SkBits2Float(0x35764124), SkBits2Float(0x36344a4a), SkBits2Float(0x00000000), SkBits2Float(0x36344a4a));  // 1.83474e-06f, 2.68653e-06f, 9.17369e-07f, 2.68653e-06f, 0, 2.68653e-06f
+path.close();
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+path.cubicTo(SkBits2Float(0x1931204a), SkBits2Float(0x2ba1a14a), SkBits2Float(0x4a4a08ff), SkBits2Float(0x4a4a08ff), SkBits2Float(0x4a4a4a34), SkBits2Float(0x4a4a4a4a));  // 9.15721e-24f, 1.14845e-12f, 3.31014e+06f, 3.31014e+06f, 3.31432e+06f, 3.31432e+06f
+path.moveTo(SkBits2Float(0x000010a1), SkBits2Float(0x19312000));  // 5.96533e-42f, 9.15715e-24f
+path.cubicTo(SkBits2Float(0x4a4a4a4a), SkBits2Float(0x4a4a4a4a), SkBits2Float(0xa14a4a4a), SkBits2Float(0x08ff2ba1), SkBits2Float(0x08ff4a4a), SkBits2Float(0x4a344a4a));  // 3.31432e+06f, 3.31432e+06f, -6.85386e-19f, 1.53575e-33f, 1.53647e-33f, 2.95387e+06f
+path.cubicTo(SkBits2Float(0x544a4a4a), SkBits2Float(0x4a4a4a4a), SkBits2Float(0x2ba1a14a), SkBits2Float(0x4e4a08ff), SkBits2Float(0x4a4a4a4a), SkBits2Float(0xa1a181ff));  // 3.47532e+12f, 3.31432e+06f, 1.14845e-12f, 8.47397e+08f, 3.31432e+06f, -1.09442e-18f
+    SkPath path2(path);
+    testPathOpCheck(reporter, path1, path2, kReverseDifference_SkPathOp, filename, true);
 }
 
 static struct TestDesc failTests[] = {
+    TEST(fuzz763_2c),
+    TEST(fuzz763_2b),
+    TEST(fuzz763_2a),
+    TEST(fuzz763_5a),
+    TEST(fuzz763_3a),
+    TEST(fuzz763_1a),
+    TEST(fuzz763_1b),
+    TEST(fuzz763_1c),
     TEST(fuzz763_2),
     TEST(fuzz763_5),
     TEST(fuzz763_3),
@@ -6072,3 +6451,14 @@ DEF_TEST(PathOpsFailOp, reporter) {
 #endif
     RunTestSet(reporter, failTests, failTestCount, nullptr, nullptr, nullptr, false);
 }
+
+static struct TestDesc repTests[] = {
+    TEST(loops44i),
+    TEST(loops45i),
+    TEST(loops46i),
+};
+
+DEF_TEST(PathOpsRepOp, reporter) {
+  for (int index = 0; index < 2; ++index)
+    RunTestSet(reporter, repTests, SK_ARRAY_COUNT(repTests), nullptr, nullptr, nullptr, false);
+}