tests/SkSLInterpreterTest.cpp - platform/external/skia - Gitiles

 /*
  * Copyright 2019 Google LLC
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */

 #include "src/sksl/SkSLCompiler.h"
 #include "src/sksl/SkSLInterpreter.h"

 #include "tests/Test.h"

 void test(skiatest::Reporter* r, const char* src, SkSL::Interpreter::Value* in, int expectedCount,
           SkSL::Interpreter::Value* expected) {
     SkSL::Compiler compiler;
     SkSL::Program::Settings settings;
     std::unique_ptr<SkSL::Program> program = compiler.convertProgram(
                                                              SkSL::Program::kGeneric_Kind,
                                                              SkSL::String(src), settings);
     REPORTER_ASSERT(r, program);
     if (program) {
         std::unique_ptr<SkSL::ByteCode> byteCode = compiler.toByteCode(*program);
         REPORTER_ASSERT(r, !compiler.errorCount());
         if (compiler.errorCount() > 0) {
             printf("%s\n%s", src, compiler.errorText().c_str());
             return;
         }
         SkSL::ByteCodeFunction* main = byteCode->fFunctions[0].get();
         SkSL::Interpreter interpreter(std::move(program), std::move(byteCode));
         SkSL::Interpreter::Value* out = interpreter.run(*main, in, nullptr);
         bool valid = !memcmp(out, expected, sizeof(SkSL::Interpreter::Value) * expectedCount);
         if (!valid) {
             printf("for program: %s\n", src);
             printf("    expected (");
             const char* separator = "";
             for (int i = 0; i < expectedCount; ++i) {
                 printf("%s%f", separator, expected[i].fFloat);
                 separator = ", ";
             }
             printf("), but received (");
             separator = "";
             for (int i = 0; i < expectedCount; ++i) {
                 printf("%s%f", separator, out[i].fFloat);
                 separator = ", ";
             }
             printf(")\n");
         }
         REPORTER_ASSERT(r, valid);
     } else {
         printf("%s\n%s", src, compiler.errorText().c_str());
     }
 }

 void test(skiatest::Reporter* r, const char* src, float inR, float inG, float inB, float inA,
         float expectedR, float expectedG, float expectedB, float expectedA) {
     SkSL::Compiler compiler;
     SkSL::Program::Settings settings;
     std::unique_ptr<SkSL::Program> program = compiler.convertProgram(
                                                              SkSL::Program::kGeneric_Kind,
                                                              SkSL::String(src), settings);
     REPORTER_ASSERT(r, program);
     if (program) {
         std::unique_ptr<SkSL::ByteCode> byteCode = compiler.toByteCode(*program);
         REPORTER_ASSERT(r, !compiler.errorCount());
         if (compiler.errorCount() > 0) {
             printf("%s\n%s", src, compiler.errorText().c_str());
             return;
         }
         SkSL::ByteCodeFunction* main = byteCode->fFunctions[0].get();
         SkSL::Interpreter interpreter(std::move(program), std::move(byteCode));
         float inoutColor[4] = { inR, inG, inB, inA };
         interpreter.run(*main, (SkSL::Interpreter::Value*) inoutColor, nullptr);
         if (inoutColor[0] != expectedR || inoutColor[1] != expectedG ||
             inoutColor[2] != expectedB || inoutColor[3] != expectedA) {
             printf("for program: %s\n", src);
             printf("    expected (%f, %f, %f, %f), but received (%f, %f, %f, %f)\n", expectedR,
                    expectedG, expectedB, expectedA, inoutColor[0], inoutColor[1], inoutColor[2],
                    inoutColor[3]);
         }
         REPORTER_ASSERT(r, inoutColor[0] == expectedR);
         REPORTER_ASSERT(r, inoutColor[1] == expectedG);
         REPORTER_ASSERT(r, inoutColor[2] == expectedB);
         REPORTER_ASSERT(r, inoutColor[3] == expectedA);
     } else {
         printf("%s\n%s", src, compiler.errorText().c_str());
     }
 }

 DEF_TEST(SkSLInterpreterAdd, r) {
     test(r, "void main(inout half4 color) { color.r = color.r + color.g; }", 0.25, 0.75, 0, 0, 1,
          0.75, 0, 0);
     test(r, "void main(inout half4 color) { color += half4(1, 2, 3, 4); }", 4, 3, 2, 1, 5, 5, 5, 5);
     test(r, "void main(inout half4 color) { half4 c = color; color += c; }", 0.25, 0.5, 0.75, 1,
          0.5, 1, 1.5, 2);
     test(r, "void main(inout half4 color) { int a = 1; int b = 3; color.r = a + b; }", 1, 2, 3, 4,
          4, 2, 3, 4);
 }

 DEF_TEST(SkSLInterpreterSubtract, r) {
     test(r, "void main(inout half4 color) { color.r = color.r - color.g; }", 1, 0.75, 0, 0, 0.25,
          0.75, 0, 0);
     test(r, "void main(inout half4 color) { color -= half4(1, 2, 3, 4); }", 5, 5, 5, 5, 4, 3, 2, 1);
     test(r, "void main(inout half4 color) { half4 c = color; color -= c; }", 4, 3, 2, 1,
          0, 0, 0, 0);
     test(r, "void main(inout half4 color) { int a = 3; int b = 1; color.r = a - b; }", 0, 0, 0, 0,
          2, 0, 0, 0);
 }

 DEF_TEST(SkSLInterpreterMultiply, r) {
     test(r, "void main(inout half4 color) { color.r = color.r * color.g; }", 2, 3, 0, 0, 6, 3, 0,
          0);
     test(r, "void main(inout half4 color) { color *= half4(1, 2, 3, 4); }", 2, 3, 4, 5, 2, 6, 12,
          20);
     test(r, "void main(inout half4 color) { half4 c = color; color *= c; }", 4, 3, 2, 1,
          16, 9, 4, 1);
     test(r, "void main(inout half4 color) { int a = 3; int b = -2; color.r = a * b; }", 0, 0, 0, 0,
          -6, 0, 0, 0);
 }

 DEF_TEST(SkSLInterpreterDivide, r) {
     test(r, "void main(inout half4 color) { color.r = color.r / color.g; }", 1, 2, 0, 0, 0.5, 2, 0,
          0);
     test(r, "void main(inout half4 color) { color /= half4(1, 2, 3, 4); }", 12, 12, 12, 12, 12, 6,
          4, 3);
     test(r, "void main(inout half4 color) { half4 c = color; color /= c; }", 4, 3, 2, 1,
          1, 1, 1, 1);
     test(r, "void main(inout half4 color) { int a = 8; int b = -2; color.r = a / b; }", 0, 0, 0, 0,
          -4, 0, 0, 0);
 }

 DEF_TEST(SkSLInterpreterRemainder, r) {
     test(r, "void main(inout half4 color) { int a = 8; int b = 3; a %= b; color.r = a; }", 0, 0, 0,
          0, 2, 0, 0, 0);
     test(r, "void main(inout half4 color) { int a = 8; int b = 3; color.r = a % b; }", 0, 0, 0, 0,
          2, 0, 0, 0);
     test(r, "void main(inout half4 color) { int2 a = int2(8, 10); a %= 6; color.rg = a; }", 0, 0, 0,
          0, 2, 4, 0, 0);
 }

 DEF_TEST(SkSLInterpreterIf, r) {
     test(r, "void main(inout half4 color) { if (color.r > color.g) color.a = 1; }", 5, 3, 0, 0,
          5, 3, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r > color.g) color.a = 1; }", 5, 5, 0, 0,
          5, 5, 0, 0);
     test(r, "void main(inout half4 color) { if (color.r > color.g) color.a = 1; }", 5, 6, 0, 0,
          5, 6, 0, 0);
     test(r, "void main(inout half4 color) { if (color.r < color.g) color.a = 1; }", 3, 5, 0, 0,
          3, 5, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r < color.g) color.a = 1; }", 5, 5, 0, 0,
          5, 5, 0, 0);
     test(r, "void main(inout half4 color) { if (color.r < color.g) color.a = 1; }", 6, 5, 0, 0,
          6, 5, 0, 0);
     test(r, "void main(inout half4 color) { if (color.r >= color.g) color.a = 1; }", 5, 3, 0, 0,
          5, 3, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r >= color.g) color.a = 1; }", 5, 5, 0, 0,
          5, 5, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r >= color.g) color.a = 1; }", 5, 6, 0, 0,
          5, 6, 0, 0);
     test(r, "void main(inout half4 color) { if (color.r <= color.g) color.a = 1; }", 3, 5, 0, 0,
          3, 5, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r <= color.g) color.a = 1; }", 5, 5, 0, 0,
          5, 5, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r <= color.g) color.a = 1; }", 6, 5, 0, 0,
          6, 5, 0, 0);
     test(r, "void main(inout half4 color) { if (color.r == color.g) color.a = 1; }", 2, 2, 0, 0,
          2, 2, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r == color.g) color.a = 1; }", 2, -2, 0, 0,
          2, -2, 0, 0);
     test(r, "void main(inout half4 color) { if (color.r != color.g) color.a = 1; }", 2, 2, 0, 0,
          2, 2, 0, 0);
     test(r, "void main(inout half4 color) { if (color.r != color.g) color.a = 1; }", 2, -2, 0, 0,
          2, -2, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r == color.g) color.a = 1; else "
          "color.a = 2; }", 1, 1, 0, 0, 1, 1, 0, 1);
     test(r, "void main(inout half4 color) { if (color.r == color.g) color.a = 1; else "
          "color.a = 2; }", 2, -2, 0, 0, 2, -2, 0, 2);
 }

 DEF_TEST(SkSLInterpreterWhile, r) {
     test(r, "void main(inout half4 color) { while (color.r < 1) color.r += 0.25; }", 0, 0, 0, 0, 1,
          0, 0, 0);
     test(r, "void main(inout half4 color) { while (color.r > 1) color.r += 0.25; }", 0, 0, 0, 0, 0,
          0, 0, 0);
     test(r, "void main(inout half4 color) { while (true) { color.r += 0.5; "
          "if (color.r > 1) break; } }", 0, 0, 0, 0, 1.5, 0, 0, 0);
     test(r, "void main(inout half4 color) { while (color.r < 10) { color.r += 0.5; "
             "if (color.r < 5) continue; break; } }", 0, 0, 0, 0, 5, 0, 0, 0);
 }

 DEF_TEST(SkSLInterpreterDo, r) {
     test(r, "void main(inout half4 color) { do color.r += 0.25; while (color.r < 1); }", 0, 0, 0, 0,
          1, 0, 0, 0);
     test(r, "void main(inout half4 color) { do color.r += 0.25; while (color.r > 1); }", 0, 0, 0, 0,
          0.25, 0, 0, 0);
     test(r, "void main(inout half4 color) { do { color.r += 0.5; if (color.r > 1) break; } while "
             "(true); }", 0, 0, 0, 0, 1.5, 0, 0, 0);
     test(r, "void main(inout half4 color) {do { color.r += 0.5; if (color.r < 5) "
             "continue; if (color.r >= 5) break; } while (true); }", 0, 0, 0, 0, 5, 0, 0, 0);
 }

 DEF_TEST(SkSLInterpreterFor, r) {
     test(r, "void main(inout half4 color) { for (int i = 1; i <= 10; ++i) color.r += i; }", 0, 0, 0,
          0, 55, 0, 0, 0);
     test(r,
          "void main(inout half4 color) {"
          "    for (int i = 1; i <= 10; ++i)"
          "        for (int j = i; j <= 10; ++j)"
          "            color.r += j;"
          "}",
          0, 0, 0, 0,
          385, 0, 0, 0);
     test(r,
          "void main(inout half4 color) {"
          "    for (int i = 1; i <= 10; ++i)"
          "        for (int j = 1; ; ++j) {"
          "            if (i == j) continue;"
          "            if (j > 10) break;"
          "            color.r += j;"
          "        }"
          "}",
          0, 0, 0, 0,
          495, 0, 0, 0);
 }

 DEF_TEST(SkSLInterpreterSwizzle, r) {
     test(r, "void main(inout half4 color) { color = color.abgr; }", 1, 2, 3, 4, 4, 3, 2, 1);
     test(r, "void main(inout half4 color) { color.rgb = half4(5, 6, 7, 8).bbg; }", 1, 2, 3, 4, 7, 7,
          6, 4);
     test(r, "void main(inout half4 color) { color.bgr = int3(5, 6, 7); }", 1, 2, 3, 4, 7, 6,
          5, 4);
 }

 DEF_TEST(SkSLInterpreterGlobal, r) {
     test(r, "int x; void main(inout half4 color) { x = 10; color.b = x; }", 1, 2, 3, 4, 1, 2, 10,
          4);
 }

 DEF_TEST(SkSLInterpreterGeneric, r) {
     float value1 = 5;
     float expected1 = 25;
     test(r, "float main(float x) { return x * x; }", (SkSL::Interpreter::Value*) &value1, 1,
          (SkSL::Interpreter::Value*) &expected1);
     float value2[2] = { 5, 25 };
     float expected2[2] = { 25, 625 };
     test(r, "float2 main(float x, float y) { return float2(x * x, y * y); }",
          (SkSL::Interpreter::Value*) &value2, 2,
          (SkSL::Interpreter::Value*) expected2);
 }
	/*
	* Copyright 2019 Google LLC
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/

	#include "src/sksl/SkSLCompiler.h"
	#include "src/sksl/SkSLInterpreter.h"

	#include "tests/Test.h"

	void test(skiatest::Reporter* r, const char* src, SkSL::Interpreter::Value* in, int expectedCount,
	SkSL::Interpreter::Value* expected) {
	SkSL::Compiler compiler;
	SkSL::Program::Settings settings;
	std::unique_ptr<SkSL::Program> program = compiler.convertProgram(
	SkSL::Program::kGeneric_Kind,
	SkSL::String(src), settings);
	REPORTER_ASSERT(r, program);
	if (program) {
	std::unique_ptr<SkSL::ByteCode> byteCode = compiler.toByteCode(*program);
	REPORTER_ASSERT(r, !compiler.errorCount());
	if (compiler.errorCount() > 0) {
	printf("%s\n%s", src, compiler.errorText().c_str());
	return;
	}
	SkSL::ByteCodeFunction* main = byteCode->fFunctions[0].get();
	SkSL::Interpreter interpreter(std::move(program), std::move(byteCode));
	SkSL::Interpreter::Value* out = interpreter.run(*main, in, nullptr);
	bool valid = !memcmp(out, expected, sizeof(SkSL::Interpreter::Value) * expectedCount);
	if (!valid) {
	printf("for program: %s\n", src);
	printf(" expected (");
	const char* separator = "";
	for (int i = 0; i < expectedCount; ++i) {
	printf("%s%f", separator, expected[i].fFloat);
	separator = ", ";
	}
	printf("), but received (");
	separator = "";
	for (int i = 0; i < expectedCount; ++i) {
	printf("%s%f", separator, out[i].fFloat);
	separator = ", ";
	}
	printf(")\n");
	}
	REPORTER_ASSERT(r, valid);
	} else {
	printf("%s\n%s", src, compiler.errorText().c_str());
	}
	}

	void test(skiatest::Reporter* r, const char* src, float inR, float inG, float inB, float inA,
	float expectedR, float expectedG, float expectedB, float expectedA) {
	SkSL::Compiler compiler;
	SkSL::Program::Settings settings;
	std::unique_ptr<SkSL::Program> program = compiler.convertProgram(
	SkSL::Program::kGeneric_Kind,
	SkSL::String(src), settings);
	REPORTER_ASSERT(r, program);
	if (program) {
	std::unique_ptr<SkSL::ByteCode> byteCode = compiler.toByteCode(*program);
	REPORTER_ASSERT(r, !compiler.errorCount());
	if (compiler.errorCount() > 0) {
	printf("%s\n%s", src, compiler.errorText().c_str());
	return;
	}
	SkSL::ByteCodeFunction* main = byteCode->fFunctions[0].get();
	SkSL::Interpreter interpreter(std::move(program), std::move(byteCode));
	float inoutColor[4] = { inR, inG, inB, inA };
	interpreter.run(main, (SkSL::Interpreter::Value) inoutColor, nullptr);
	if (inoutColor[0] != expectedR \|\| inoutColor[1] != expectedG \|\|
	inoutColor[2] != expectedB \|\| inoutColor[3] != expectedA) {
	printf("for program: %s\n", src);
	printf(" expected (%f, %f, %f, %f), but received (%f, %f, %f, %f)\n", expectedR,
	expectedG, expectedB, expectedA, inoutColor[0], inoutColor[1], inoutColor[2],
	inoutColor[3]);
	}
	REPORTER_ASSERT(r, inoutColor[0] == expectedR);
	REPORTER_ASSERT(r, inoutColor[1] == expectedG);
	REPORTER_ASSERT(r, inoutColor[2] == expectedB);
	REPORTER_ASSERT(r, inoutColor[3] == expectedA);
	} else {
	printf("%s\n%s", src, compiler.errorText().c_str());
	}
	}

	DEF_TEST(SkSLInterpreterAdd, r) {
	test(r, "void main(inout half4 color) { color.r = color.r + color.g; }", 0.25, 0.75, 0, 0, 1,
	0.75, 0, 0);
	test(r, "void main(inout half4 color) { color += half4(1, 2, 3, 4); }", 4, 3, 2, 1, 5, 5, 5, 5);
	test(r, "void main(inout half4 color) { half4 c = color; color += c; }", 0.25, 0.5, 0.75, 1,
	0.5, 1, 1.5, 2);
	test(r, "void main(inout half4 color) { int a = 1; int b = 3; color.r = a + b; }", 1, 2, 3, 4,
	4, 2, 3, 4);
	}

	DEF_TEST(SkSLInterpreterSubtract, r) {
	test(r, "void main(inout half4 color) { color.r = color.r - color.g; }", 1, 0.75, 0, 0, 0.25,
	0.75, 0, 0);
	test(r, "void main(inout half4 color) { color -= half4(1, 2, 3, 4); }", 5, 5, 5, 5, 4, 3, 2, 1);
	test(r, "void main(inout half4 color) { half4 c = color; color -= c; }", 4, 3, 2, 1,
	0, 0, 0, 0);
	test(r, "void main(inout half4 color) { int a = 3; int b = 1; color.r = a - b; }", 0, 0, 0, 0,
	2, 0, 0, 0);
	}

	DEF_TEST(SkSLInterpreterMultiply, r) {
	test(r, "void main(inout half4 color) { color.r = color.r * color.g; }", 2, 3, 0, 0, 6, 3, 0,
	0);
	test(r, "void main(inout half4 color) { color *= half4(1, 2, 3, 4); }", 2, 3, 4, 5, 2, 6, 12,
	20);
	test(r, "void main(inout half4 color) { half4 c = color; color *= c; }", 4, 3, 2, 1,
	16, 9, 4, 1);
	test(r, "void main(inout half4 color) { int a = 3; int b = -2; color.r = a * b; }", 0, 0, 0, 0,
	-6, 0, 0, 0);
	}

	DEF_TEST(SkSLInterpreterDivide, r) {
	test(r, "void main(inout half4 color) { color.r = color.r / color.g; }", 1, 2, 0, 0, 0.5, 2, 0,
	0);
	test(r, "void main(inout half4 color) { color /= half4(1, 2, 3, 4); }", 12, 12, 12, 12, 12, 6,
	4, 3);
	test(r, "void main(inout half4 color) { half4 c = color; color /= c; }", 4, 3, 2, 1,
	1, 1, 1, 1);
	test(r, "void main(inout half4 color) { int a = 8; int b = -2; color.r = a / b; }", 0, 0, 0, 0,
	-4, 0, 0, 0);
	}

	DEF_TEST(SkSLInterpreterRemainder, r) {
	test(r, "void main(inout half4 color) { int a = 8; int b = 3; a %= b; color.r = a; }", 0, 0, 0,
	0, 2, 0, 0, 0);
	test(r, "void main(inout half4 color) { int a = 8; int b = 3; color.r = a % b; }", 0, 0, 0, 0,
	2, 0, 0, 0);
	test(r, "void main(inout half4 color) { int2 a = int2(8, 10); a %= 6; color.rg = a; }", 0, 0, 0,
	0, 2, 4, 0, 0);
	}

	DEF_TEST(SkSLInterpreterIf, r) {
	test(r, "void main(inout half4 color) { if (color.r > color.g) color.a = 1; }", 5, 3, 0, 0,
	5, 3, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r > color.g) color.a = 1; }", 5, 5, 0, 0,
	5, 5, 0, 0);
	test(r, "void main(inout half4 color) { if (color.r > color.g) color.a = 1; }", 5, 6, 0, 0,
	5, 6, 0, 0);
	test(r, "void main(inout half4 color) { if (color.r < color.g) color.a = 1; }", 3, 5, 0, 0,
	3, 5, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r < color.g) color.a = 1; }", 5, 5, 0, 0,
	5, 5, 0, 0);
	test(r, "void main(inout half4 color) { if (color.r < color.g) color.a = 1; }", 6, 5, 0, 0,
	6, 5, 0, 0);
	test(r, "void main(inout half4 color) { if (color.r >= color.g) color.a = 1; }", 5, 3, 0, 0,
	5, 3, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r >= color.g) color.a = 1; }", 5, 5, 0, 0,
	5, 5, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r >= color.g) color.a = 1; }", 5, 6, 0, 0,
	5, 6, 0, 0);
	test(r, "void main(inout half4 color) { if (color.r <= color.g) color.a = 1; }", 3, 5, 0, 0,
	3, 5, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r <= color.g) color.a = 1; }", 5, 5, 0, 0,
	5, 5, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r <= color.g) color.a = 1; }", 6, 5, 0, 0,
	6, 5, 0, 0);
	test(r, "void main(inout half4 color) { if (color.r == color.g) color.a = 1; }", 2, 2, 0, 0,
	2, 2, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r == color.g) color.a = 1; }", 2, -2, 0, 0,
	2, -2, 0, 0);
	test(r, "void main(inout half4 color) { if (color.r != color.g) color.a = 1; }", 2, 2, 0, 0,
	2, 2, 0, 0);
	test(r, "void main(inout half4 color) { if (color.r != color.g) color.a = 1; }", 2, -2, 0, 0,
	2, -2, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r == color.g) color.a = 1; else "
	"color.a = 2; }", 1, 1, 0, 0, 1, 1, 0, 1);
	test(r, "void main(inout half4 color) { if (color.r == color.g) color.a = 1; else "
	"color.a = 2; }", 2, -2, 0, 0, 2, -2, 0, 2);
	}

	DEF_TEST(SkSLInterpreterWhile, r) {
	test(r, "void main(inout half4 color) { while (color.r < 1) color.r += 0.25; }", 0, 0, 0, 0, 1,
	0, 0, 0);
	test(r, "void main(inout half4 color) { while (color.r > 1) color.r += 0.25; }", 0, 0, 0, 0, 0,
	0, 0, 0);
	test(r, "void main(inout half4 color) { while (true) { color.r += 0.5; "
	"if (color.r > 1) break; } }", 0, 0, 0, 0, 1.5, 0, 0, 0);
	test(r, "void main(inout half4 color) { while (color.r < 10) { color.r += 0.5; "
	"if (color.r < 5) continue; break; } }", 0, 0, 0, 0, 5, 0, 0, 0);
	}

	DEF_TEST(SkSLInterpreterDo, r) {
	test(r, "void main(inout half4 color) { do color.r += 0.25; while (color.r < 1); }", 0, 0, 0, 0,
	1, 0, 0, 0);
	test(r, "void main(inout half4 color) { do color.r += 0.25; while (color.r > 1); }", 0, 0, 0, 0,
	0.25, 0, 0, 0);
	test(r, "void main(inout half4 color) { do { color.r += 0.5; if (color.r > 1) break; } while "
	"(true); }", 0, 0, 0, 0, 1.5, 0, 0, 0);
	test(r, "void main(inout half4 color) {do { color.r += 0.5; if (color.r < 5) "
	"continue; if (color.r >= 5) break; } while (true); }", 0, 0, 0, 0, 5, 0, 0, 0);
	}

	DEF_TEST(SkSLInterpreterFor, r) {
	test(r, "void main(inout half4 color) { for (int i = 1; i <= 10; ++i) color.r += i; }", 0, 0, 0,
	0, 55, 0, 0, 0);
	test(r,
	"void main(inout half4 color) {"
	" for (int i = 1; i <= 10; ++i)"
	" for (int j = i; j <= 10; ++j)"
	" color.r += j;"
	"}",
	0, 0, 0, 0,
	385, 0, 0, 0);
	test(r,
	"void main(inout half4 color) {"
	" for (int i = 1; i <= 10; ++i)"
	" for (int j = 1; ; ++j) {"
	" if (i == j) continue;"
	" if (j > 10) break;"
	" color.r += j;"
	" }"
	"}",
	0, 0, 0, 0,
	495, 0, 0, 0);
	}

	DEF_TEST(SkSLInterpreterSwizzle, r) {
	test(r, "void main(inout half4 color) { color = color.abgr; }", 1, 2, 3, 4, 4, 3, 2, 1);
	test(r, "void main(inout half4 color) { color.rgb = half4(5, 6, 7, 8).bbg; }", 1, 2, 3, 4, 7, 7,
	6, 4);
	test(r, "void main(inout half4 color) { color.bgr = int3(5, 6, 7); }", 1, 2, 3, 4, 7, 6,
	5, 4);
	}

	DEF_TEST(SkSLInterpreterGlobal, r) {
	test(r, "int x; void main(inout half4 color) { x = 10; color.b = x; }", 1, 2, 3, 4, 1, 2, 10,
	4);
	}

	DEF_TEST(SkSLInterpreterGeneric, r) {
	float value1 = 5;
	float expected1 = 25;
	test(r, "float main(float x) { return x * x; }", (SkSL::Interpreter::Value*) &value1, 1,
	(SkSL::Interpreter::Value*) &expected1);
	float value2[2] = { 5, 25 };
	float expected2[2] = { 25, 625 };
	test(r, "float2 main(float x, float y) { return float2(x * x, y * y); }",
	(SkSL::Interpreter::Value*) &value2, 2,
	(SkSL::Interpreter::Value*) expected2);
	}