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| author | Andrew MacLeod <amacleod@redhat.com> | 2021-06-14 15:33:59 -0400 |
|---|---|---|
| committer | Andrew MacLeod <amacleod@redhat.com> | 2021-06-14 17:06:32 -0400 |
| commit | ecc5644fa3bc7f37eada2a3e9c627cd1918922e0 (patch) | |
| tree | 98111eb5fd9cdebca136300ce17bd8d2372efa68 /gcc/builtins.c | |
| parent | c37b5ddcc88e0cc0f6a4ad609eda51021df0f6bb (diff) | |
| download | gcc-ecc5644fa3bc7f37eada2a3e9c627cd1918922e0.zip gcc-ecc5644fa3bc7f37eada2a3e9c627cd1918922e0.tar.gz gcc-ecc5644fa3bc7f37eada2a3e9c627cd1918922e0.tar.bz2 | |
Limit new value calculations to first order effects.
When utilzing poor values during propagation, we mostly care about values that
were undefined/processed directly used in calcualting the SSA_NAME being
processed. 2nd level derivations of such poor values rarely affect the
inital calculation. Leave them to when they are directly encountered.
* gimple-range-cache.cc (ranger_cache::ranger_cache): Adjust.
(ranger_cache::enable_new_values): Set to specified value and
return the old value.
(ranger_cache::disable_new_values): Delete.
(ranger_cache::fill_block_cache): Disable non 1st order derived
poor values.
* gimple-range-cache.h (ranger_cache): Adjust prototypes.
* gimple-range.cc (gimple_ranger::range_of_expr): Adjust.
Diffstat (limited to 'gcc/builtins.c')
0 files changed, 0 insertions, 0 deletions