From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/jit-test/tests/debug/optimized-out-01.js | 47 +++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 js/src/jit-test/tests/debug/optimized-out-01.js (limited to 'js/src/jit-test/tests/debug/optimized-out-01.js') diff --git a/js/src/jit-test/tests/debug/optimized-out-01.js b/js/src/jit-test/tests/debug/optimized-out-01.js new file mode 100644 index 0000000000..cb0210dcbf --- /dev/null +++ b/js/src/jit-test/tests/debug/optimized-out-01.js @@ -0,0 +1,47 @@ +// Tests that we can reflect optimized out values. +// +// Unfortunately these tests are brittle. They depend on opaque JIT heuristics +// kicking in. + +// Use gczeal 0 to keep CGC from invalidating Ion code and causing test failures. +gczeal(0); + +load(libdir + "jitopts.js"); + +if (!jitTogglesMatch(Opts_Ion2NoOffthreadCompilation)) + quit(0); + +withJitOptions(Opts_Ion2NoOffthreadCompilation, function () { + var g = newGlobal({newCompartment: true}); + var dbg = new Debugger; + + // Note that this *depends* on CCW scripted functions being opaque to Ion + // optimization and not deoptimizing the frames below the call to toggle. + g.toggle = function toggle(d) { + if (d) { + dbg.addDebuggee(g); + var frame = dbg.getNewestFrame(); + assertEq(frame.implementation, "ion"); + // x is unused and should be elided. + assertEq(frame.environment.getVariable("x").optimizedOut, true); + assertEq(frame.arguments[1].optimizedOut, true); + } + }; + + g.eval("" + function f(d, x) { + "use strict"; + eval("g(d, x)"); // `eval` to avoid inlining g. + }); + + g.eval("" + function g(d, x) { + "use strict"; + for (var i = 0; i < 100; i++); + toggle(d); + }); + + g.eval("(" + function test() { + for (i = 0; i < 15; i++) + f(false, 42); + f(true, 42); + } + ")();"); +}); -- cgit v1.2.3