4 Commits

Author SHA1 Message Date
Nikita Popov
b332499a94 [Polly] Convert some tests to opaque pointers (NFC) 2023-01-17 10:15:18 +01:00
Michael Kruse
5c02808131 [polly] Introduce -polly-print-* passes to replace -analyze.
The `opt -analyze` option only works with the legacy pass manager and might be removed in the future, as explained in llvm.org/PR53733. This patch introduced -polly-print-* passes that print what the pass would print with the `-analyze` option and replaces all uses of `-analyze` in the regression tests.

There are two exceptions: `CodeGen\single_loop_param_less_equal.ll` and `CodeGen\loop_with_condition_nested.ll` use `-analyze on the `-loops` pass which is not part of Polly.

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D120782
2022-03-14 10:27:15 -05:00
Michael Kruse
a43ba2d84f [ScopBuilder] Make -polly-stmt-granularity=scalar-indep the default.
Splitting basic blocks into multiple statements if there are now
additional scalar dependencies gives more freedom to the scheduler, but
more statements also means higher compile-time complexity. Switch to
finer statement granularity, the additional compile time should be
limited by the number of operations quota.

The regression tests are written for the -polly-stmt-granularity=bb
setting, therefore we add that flag to those tests that break with the
new default. Some of the tests only fail because the statements are
named differently due to a basic block resulting in multiple statements,
but which are removed during simplification of statements without
side-effects. Previous commits tried to reduce this effect, but it is
not completely avoidable.

Differential Revision: https://reviews.llvm.org/D42151

llvm-svn: 324169
2018-02-03 06:59:47 +00:00
Michael Kruse
ce9617f4fe [Simplify] Implement write accesses coalescing.
Write coalescing combines write accesses that

- Write the same llvm::Value.
- Write to the same array.
- Unless they do not write anything in a statement instance (partial
  writes), write to the same element.
- There is no other access between them that accesses the same element.

This is particularly useful after DeLICM, which leaves partial writes to
disjoint domains.

Differential Revision: https://reviews.llvm.org/D36010

llvm-svn: 309489
2017-07-29 16:21:16 +00:00