pretenure-array-long-then-short-lived.js

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// Allocate many objects, changing the lifetime from long-lived to short lived

// and check that we recover.

load(libdir + "pretenure.js");

setupPretenureTest();

// Phase 1: long lived.

allocateArrays(nurseryCount, true);

let { minor, major } = runTestAndCountCollections(

  () => allocateArrays(tenuredCount, true)

);

print(`${minor} minor GCs, ${major} major GCs`);

assertEq(minor <= 1, true);

assertEq(major >= 5, true);

// Phase 2: short lived.

allocateArrays(tenuredCount, false);

({ minor, major } = runTestAndCountCollections(

  () => allocateArrays(nurseryCount * 5, false)

));

print(`${minor} minor GCs, ${major} major GCs`);

assertEq(minor >= 5, true);

assertEq(major == 0, true);