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The hybrid heap emulator was last working in the non-SMP R11B
run-time system. When the constant pools were introduced in R12B,
the hybrid heap emulator was not updated to handle them.
At this point, the harm from reduced readability of the code is
greater than any potential usefulness of keeping the code.
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Seen causing segv on sparc with hibernate_native_SUITE:basic:
nstack_walk_frame_ra (nsp=0x0, sdesc=0x6c8f2c) at hipe_risc_gc.h:105
gensweep_nstack (p=0x6a6930, ptr_old_htop=0xffbfea50, ptr_n_htop=0xffbfea4c) at hipe/hipe_gc.c:224
do_minor (p=0x6a6930, new_sz=233, objv=0x6a6984, nobj=3) at beam/erl_gc.c:949
minor_collection (p=0x6a6930, need=3, objv=0x6a6984, nobj=3, recl=0xffbfece4) at beam/erl_gc.c:811
erts_garbage_collect (p=0x6a6930, need=3, objv=0x6a6984, nobj=3) at beam/erl_gc.c:379
erts_send_message (sender=0x6a6048, receiver=0x6a6930, receiver_locks=0xffbfedf8, message=6132762, flags=0) at beam/erl_message.c:922
do_send (p=0x6a6048, to=515, msg=6132762, suspend=1) at beam/bif.c:2052
erl_send (p=0x6a6048, to=515, msg=6132762) at beam/bif.c:2151
send_2 (A__p=0x6a6048, BIF__ARGS=0x6a609c) at beam/bif.c:2146
nbif_send_2 ()
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* ks/hipe-ppc64:
Enable HiPE by default when compiling for PPC64
Translate RTL to PPC code on PPC64 too
Changes in ppc files for PPC64
Additions for the PPC64 backend
Changes for the PPC64 backend
Added loader for ppc64
New files for the 64-bit backends
Cleanup tags
OTP-9198
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Hipe constants used to be allocated within a single, fixed-size pool for
interaction with the garbage collector. However, the garbage collector
no longer depends on constants being allocated within a single pool, and
the fixed size of the pool both meant unnecessary allocations on most
deployments and crashes on deployments requiring more constants.
The code was simplified to directly invoke erts_alloc.
Debugging and undocumented function hipe_bifs:show_literals/0 was
removed (it returned true and output text to the console), and
debugging and undocumented function hipe_bifs:constants_size/0 was
rewritten with a global to count the size of allocated constants.
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New NIF features:
Send messages from a NIF, or from thread created by NIF, to any local
process (enif_send)
Store terms between NIF calls (enif_alloc_env, enif_make_copy)
Create binary terms with user defined memory management
(enif_make_resource_binary)
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