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// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --no-always-turbofan --turbofan
// Flags: --no-stress-flush-code --turbo-inlining
// Flags: --expose-gc
// Files: test/mjsunit/code-coverage-utils.js
(async function () {
if (isNeverOptimizeLiteMode()) {
print("Warning: skipping test that requires optimization in Lite mode.");
testRunner.quit(0);
}
%DebugToggleBlockCoverage(true);
await TestCoverage(
"optimized and inlined functions",
`
function g() { if (true) nop(); } // 0000
function f() { g(); g(); } // 0050
%PrepareFunctionForOptimization(f); // 0100
f(); f(); %OptimizeFunctionOnNextCall(f); // 0150
f(); f(); f(); f(); f(); f(); // 0200
`,
[ {"start":0,"end":249,"count":1},
{"start":0,"end":33,"count":16},
{"start":50,"end":76,"count":8} ]
);
// This test is tricky: it requires a non-toplevel, optimized function.
// After initial collection, counts are cleared. Further invocation_counts
// are not collected for optimized functions, and on the next coverage
// collection we and up with an uncovered function with an uncovered parent
// but with non-trivial block coverage.
await TestCoverage(
"Partial coverage collection",
`
!function() { // 0000
function f(x) { // 0050
if (x) { nop(); } else { nop(); } // 0100
} // 0150
%PrepareFunctionForOptimization(f); // 0200
f(true); f(true); // 0250
%OptimizeFunctionOnNextCall(f); // 0300
%DebugCollectCoverage(); // 0350
f(false); // 0400
}(); // 0450
`,
[ {"start":52,"end":153,"count":1},
{"start":111,"end":121,"count":0} ]
);
%DebugToggleBlockCoverage(false);
})();
|
