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| author | Richard Biener <rguenther@suse.de> | 2023-08-02 13:33:43 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-08-03 13:21:32 +0200 |
| commit | 021a0cd4494463026226a10d9556a0eedc422e5e (patch) | |
| tree | 6c2cb9b63a5ae9309ea3241e16449df75e5b69aa /gcc/value-range.h | |
| parent | 3d48c11ad082def8ee237e5778d8a5d569bff96d (diff) | |
| download | gcc-021a0cd4494463026226a10d9556a0eedc422e5e.zip gcc-021a0cd4494463026226a10d9556a0eedc422e5e.tar.gz gcc-021a0cd4494463026226a10d9556a0eedc422e5e.tar.bz2 | |
Add virtual operand global liveness computation class
The following adds an on-demand global liveness computation class
computing and caching the live-out virtual operand of basic blocks
and answering live-out, live-in and live-on-edge queries. The flow
is optimized for the intended use in code sinking which will query
live-in and possibly can be optimized further when the originating
query is for live-out.
The code relies on up-to-date immediate dominator information and
on an unchanging virtual operand state.
* tree-ssa-live.h (class virtual_operand_live): New.
* tree-ssa-live.cc (virtual_operand_live::init): New.
(virtual_operand_live::get_live_in): Likewise.
(virtual_operand_live::get_live_out): Likewise.
Diffstat (limited to 'gcc/value-range.h')
0 files changed, 0 insertions, 0 deletions