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| author | Sebastian Pop <sebastian.pop@amd.com> | 2010-08-24 23:36:04 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2010-08-24 23:36:04 +0000 |
| commit | 4b9c23ea4e985e4516c75a02948b6c40c8f8a2a7 (patch) | |
| tree | 81847459ed3a48b0e2fb27223e2a7c6cbd045dca /gcc/tree-ssa-pre.c | |
| parent | e1fd038a0c859f7f669370f06f0516e4bd5307b9 (diff) | |
| download | gcc-4b9c23ea4e985e4516c75a02948b6c40c8f8a2a7.zip gcc-4b9c23ea4e985e4516c75a02948b6c40c8f8a2a7.tar.gz gcc-4b9c23ea4e985e4516c75a02948b6c40c8f8a2a7.tar.bz2 | |
Speed-up ifcvt_memrefs_wont_trap caching previous results.
This patch speeds up the ifcvt_memrefs_wont_trap computation by
caching the results of the computations in the data references ->aux
fields.
* tree-if-conv.c (struct ifc_dr): New.
(IFC_DR): New.
(DR_WRITTEN_AT_LEAST_ONCE): New.
(DR_RW_UNCONDITIONALLY): New.
(memref_read_or_written_unconditionally): Use the cached values
when possible.
(write_memref_written_at_least_once): Same.
(if_convertible_loop_p): Initialize and free DR->aux fields.
From-SVN: r163532
Diffstat (limited to 'gcc/tree-ssa-pre.c')
0 files changed, 0 insertions, 0 deletions