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| author | Magnus Lång <[email protected]> | 2016-03-12 01:22:45 +0100 |
|---|---|---|
| committer | Magnus Lång <[email protected]> | 2016-08-30 17:02:37 +0200 |
| commit | d93a42112b35e4dbfb0f34b413fffb543f15ca3e (patch) | |
| tree | 1de60981f1c99cfc66fa7e911063f1cc4ee58679 /lib/hipe/regalloc/hipe_x86_specific_x87.erl | |
| parent | 85234b4069c9b75e3ae5ddf643b981d7428fb81f (diff) | |
| download | otp-d93a42112b35e4dbfb0f34b413fffb543f15ca3e.tar.gz otp-d93a42112b35e4dbfb0f34b413fffb543f15ca3e.tar.bz2 otp-d93a42112b35e4dbfb0f34b413fffb543f15ca3e.zip | |
hipe_x86: LSRA for SSE2
There is little point offering LSRA for x86 if we're still going to call
hipe_graph_coloring_regalloc for the floats. In particular, all
allocators except LSRA allocates an N^2 interference matrix, making them
unusable for really large functions.
Diffstat (limited to 'lib/hipe/regalloc/hipe_x86_specific_x87.erl')
| -rw-r--r-- | lib/hipe/regalloc/hipe_x86_specific_x87.erl | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/hipe/regalloc/hipe_x86_specific_x87.erl b/lib/hipe/regalloc/hipe_x86_specific_x87.erl index ece07cb2f9..ff5d1b9c8b 100644 --- a/lib/hipe/regalloc/hipe_x86_specific_x87.erl +++ b/lib/hipe/regalloc/hipe_x86_specific_x87.erl @@ -32,7 +32,7 @@ -endif. -module(?HIPE_X86_SPECIFIC_X87). --export([allocatable/0, +-export([allocatable/1, is_precoloured/1, %% var_range/1, %% def_use/1, @@ -58,7 +58,14 @@ physical_name/1, breadthorder/1, postorder/1, - reverse_postorder/1]). + reverse_postorder/1]). + +%% callbacks for hipe_x86_ra_ls +-export([check_and_rewrite/3]). + +%% Rewrite happens in hipe_x86_ra_finalise:finalise/4 +check_and_rewrite(Defun, _Coloring, 'linearscan') -> + {Defun, false}. breadthorder(CFG) -> hipe_x86_cfg:breadthorder(CFG). @@ -103,7 +110,7 @@ liveout(BB_in_out_liveness,Label) -> %% Registers stuff -allocatable() -> +allocatable('linearscan') -> ?HIPE_X86_REGISTERS:allocatable_x87(). is_precoloured(Reg) -> |