test-ExecutableAllocator.cpp

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#include "gdb-tests.h"

#include "jit/ExecutableAllocator.h"

#include "vm/JSContext.h"

FRAGMENT(ExecutableAllocator, empty) {

  using namespace js::jit;

  ExecutableAllocator execAlloc;

  breakpoint();

  use(execAlloc);

FRAGMENT(ExecutableAllocator, onepool) {

  using namespace js::jit;

  ExecutablePool* pool = nullptr;

  ExecutableAllocator execAlloc;

  execAlloc.alloc(cx, 16 * 1024, &pool, CodeKind::Baseline);

  breakpoint();

  use(pool);

  use(execAlloc);

FRAGMENT(ExecutableAllocator, twopools) {

  using namespace js::jit;

  const size_t INIT_ALLOC_SIZE = 16 * 1024;

  const size_t ALLOC_SIZE = 32 * 1024;

  ExecutablePool* init = nullptr;

  ExecutablePool* pool = nullptr;

  ExecutableAllocator execAlloc;

  size_t allocated = 0;

  execAlloc.alloc(cx, INIT_ALLOC_SIZE, &init, CodeKind::Baseline);

  do {  // Keep allocating until we get a second pool.

    execAlloc.alloc(cx, ALLOC_SIZE, &pool, CodeKind::Ion);

    allocated += ALLOC_SIZE;

  } while (pool == init);

  breakpoint();

  use(execAlloc);

  init->release(INIT_ALLOC_SIZE, CodeKind::Baseline);

  init->release(allocated - ALLOC_SIZE, CodeKind::Ion);

  pool->release(ALLOC_SIZE, CodeKind::Ion);