Max Kazantsev 168a823000 [IRCE] Do not process empty safe ranges ...

IRCE should not apply when the safe iteration range is proved to be empty.
In this case we do unneeded job creating pre/post loops and then never
go to the main loop.

This patch makes IRCE not apply to empty safe ranges, adds test for this
situation and also modifies one of existing tests where it used to happen
slightly.

Reviewed By: anna
Differential Revision: https://reviews.llvm.org/D38577


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315437 91177308-0d34-0410-b5e6-96231b3b80d8

2017-10-11 06:53:07 +00:00

..

add-metadata-pre-post-loops.ll

[IRCE] Avoid loop optimizations on pre and post loops

2016-12-13 21:05:21 +00:00

bad-loop-structure.ll

[IRCE] Add a missing invariant check

2017-02-07 23:59:07 +00:00

bug-loop-varying-upper-limit.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

bug-mismatched-types.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

clamp.ll

[IRCE] Temporarily disable unsigned latch conditions by default

2017-10-04 06:53:22 +00:00

conjunctive-checks.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

correct-loop-info.ll

[IRCE] Do not process empty safe ranges

2017-10-11 06:53:07 +00:00

decrementing-loop.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

eq_ne.ll

[IRCE] Temporarily disable unsigned latch conditions by default

2017-10-04 06:53:22 +00:00

low-becount.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

multiple-access-no-preloop.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

not-likely-taken.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

only-lower-check.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

only-upper-check.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

pre_post_loops.ll

[IRCE] Fix corner case with Start = INT_MAX

2017-07-14 06:35:03 +00:00

range_intersect_miscompile.ll

[IRCE] Temporarily disable unsigned latch conditions by default

2017-10-04 06:53:22 +00:00

single-access-no-preloop.ll

[IRCE] Do not process empty safe ranges

2017-10-11 06:53:07 +00:00

single-access-with-preloop.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

skip-profitability-checks.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

stride_more_than_1.ll

[IRCE] Temporarily disable unsigned latch conditions by default

2017-10-04 06:53:22 +00:00

unhandled.ll

[IRCE] Create llvm::Loop instances for cloned out loops

2016-08-14 01:04:46 +00:00

unsigned_comparisons_ugt.ll

[IRCE] Temporarily disable unsigned latch conditions by default

2017-10-04 06:53:22 +00:00

unsigned_comparisons_ult.ll

[IRCE] Temporarily disable unsigned latch conditions by default

2017-10-04 06:53:22 +00:00

with-parent-loops.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00