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| author | Magnus Lång <[email protected]> | 2017-03-16 15:30:00 +0100 |
|---|---|---|
| committer | Magnus Lång <[email protected]> | 2017-03-16 20:49:42 +0100 |
| commit | c52b2cf226cb3f1bb1b16bee28d47785506adff3 (patch) | |
| tree | f016829f93e26db7fe7e2329ace868f4b2442510 /lib/hipe/ppc/hipe_ppc.hrl | |
| parent | d1d26f4bf9da3cc5eab4e918df771d67fe9e6bb5 (diff) | |
| download | otp-c52b2cf226cb3f1bb1b16bee28d47785506adff3.tar.gz otp-c52b2cf226cb3f1bb1b16bee28d47785506adff3.tar.bz2 otp-c52b2cf226cb3f1bb1b16bee28d47785506adff3.zip | |
hipe: Add pseudo_spill_f?move instructions
These pseudo instructions are added to all backends and allow spill slot
to spill slot move coalescing in a clean way.
They have regular move semantics, but contain an additional scratch
register to be used if both source and destination are spilled, and can
not be move coalesced.
Additionally, a register allocator callback
Target:is_spill_move(Instr, Context) is added which allows the spill
slot allocators to check for these instructions and try to coalesce the
spill slots the two temporaries are allocated to.
Diffstat (limited to 'lib/hipe/ppc/hipe_ppc.hrl')
| -rw-r--r-- | lib/hipe/ppc/hipe_ppc.hrl | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/hipe/ppc/hipe_ppc.hrl b/lib/hipe/ppc/hipe_ppc.hrl index a96692c52e..3eef8be487 100644 --- a/lib/hipe/ppc/hipe_ppc.hrl +++ b/lib/hipe/ppc/hipe_ppc.hrl @@ -87,6 +87,7 @@ -record(pseudo_call_prepare, {nrstkargs}). -record(pseudo_li, {dst, imm}). -record(pseudo_move, {dst, src}). +-record(pseudo_spill_move, {dst, temp, src}). -record(pseudo_tailcall, {func, arity, stkargs, linkage}). -record(pseudo_tailcall_prepare, {}). -record(store, {stop, src, disp, base}). % non-indexed, non-update form @@ -99,6 +100,7 @@ -record(fp_binary, {fp_binop, dst, src1, src2}). -record(fp_unary, {fp_unop, dst, src}). -record(pseudo_fmove, {dst, src}). +-record(pseudo_spill_fmove, {dst, temp, src}). %%% Function definitions. |