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| author | Richard Sandiford <richard.sandiford@arm.com> | 2024-10-24 14:22:31 +0100 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2024-10-24 14:22:31 +0100 |
| commit | e2e798b86074010a8d5da16ce0b199fcec70a50e (patch) | |
| tree | f949a8fb5ca94812d1dded54ebbe591011ee9eb6 /gcc/gcc-urlifier.cc | |
| parent | 3e93828e601c62176ea2b4a1dd0b5a1db5657a8e (diff) | |
| download | gcc-e2e798b86074010a8d5da16ce0b199fcec70a50e.zip gcc-e2e798b86074010a8d5da16ce0b199fcec70a50e.tar.gz gcc-e2e798b86074010a8d5da16ce0b199fcec70a50e.tar.bz2 | |
Use get_nonzero_bits to simplify trunc_div to exact_div
There are a limited number of existing rules that benefit from
knowing that a division is exact. Later patches will add more.
gcc/
* match.pd: Simplify X / (1 << C) to X /[ex] (1 << C) if the
low C bits of X are clear
gcc/testsuite/
* gcc.dg/tree-ssa/cmpexactdiv-6.c: New test.
Diffstat (limited to 'gcc/gcc-urlifier.cc')
0 files changed, 0 insertions, 0 deletions