forked from OSchip/llvm-project
693ef99935
With a lot of reads and writes to the same array in a statement, some isl sets that capture the state between access can become complex such that isl takes more considerable time and memory for operations on them. The problems identified were: - is_subset() takes considerable time with many disjoints in the arguments. We limit the number of disjoints to 4, any additional information is thrown away. - subtract() can lead to many disjoints. We instead assume that any array element is possibly accessed, which removes all disjoints. - subtract_domain() may lead to considerable processing, even if all elements are are to be removed. Instead, we remove determine and remove the affected spaces manually. No behaviour is changed. llvm-svn: 309728 |
||
|---|---|---|
| clang | ||
| clang-tools-extra | ||
| compiler-rt | ||
| debuginfo-tests | ||
| libclc | ||
| libcxx | ||
| libcxxabi | ||
| libunwind | ||
| lld | ||
| lldb | ||
| llgo | ||
| llvm | ||
| openmp | ||
| parallel-libs | ||
| polly | ||